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Wyszukujesz frazę "drinking water" wg kryterium: Temat


Tytuł:
Transport of Emergency Drinking Water Supplies to Population
Autorzy:
Tomek, Miroslav
Jakubčeková, Júlia
Powiązania:
https://bibliotekanauki.pl/articles/503804.pdf
Data publikacji:
2012
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
drinking water
emergency supply
transport of drinking water
Opis:
The importance of emergency supply of drinking water with the emphasis on its transport. Transport of drinking water to the population affected by emergency event and state of crisis using various transport alternatives for supply. Organization and regulation of supply of drinking water, with an emphasis on speed and security of supply. Proposal to minimize security risks of supply of drinking water.
Źródło:
Logistics and Transport; 2012, 14, 1; 129-148
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Groundwater quality assessment for drinking purposes using water quality index in Ali Al-Gharbi District, Iraq
Autorzy:
Al-Shammary, Sarteel Hamid Enad
Al-Mayyahi, Sattar Obaid Maiws
Powiązania:
https://bibliotekanauki.pl/articles/1841940.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
drinking water
groundwater
Iraq
water quality index
Opis:
The present study aimed to assess groundwater quality according to the water quality index (WQI) in Ali Al- Gharbi district of the Maysan Governorate in eastern Iraq. For this purpose, 10 physical parameters such as pH, total hardness (TH), magnesium (Mg2+), calcium (Ca2+), potassium (K+), sodium (Na+), sulphate (SO42–), chloride (Cl–), nitrate (NO3–), and total dissolved solids (TDSs) were examined since 2019 from 16 different locations (viz. wells). The analysis results indicated that 18.75% of the water samples were of good quality, 56.25% of them had low quality, and 25% of such samples were very poor. The WQI also varied from 69.67 and 297.6. Therefore, prior to water use, there is a dire need for some treatments, as protecting this district from pollution is significant.
Źródło:
Journal of Water and Land Development; 2021, 50; 274-280
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of Conventional Drinking Water Treatment Plants in Removing Microplastics in East Java, Indonesia
Autorzy:
Radityaningrum, Arlini Dyah
Trihadiningrum, Yulinah
Soedjono, Eddy Setiadi
Powiązania:
https://bibliotekanauki.pl/articles/24201748.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water
microplastic
removal efficiency
water treatment
Opis:
Microplastic (MP) has been a new emerging contaminant in the municipal water supply. A water treatment process is a key to producing high-quality and safe drinking water. The performance of a conventional drinking water treatment plant (CDWTP) to remove MPs is questionable. This research aimed to investigate the performance of 2 CDWTPs in East Java in removing MPs. Full-stage treatment in two CDWTPs consisted of intake, pre-sedimentation, coagulation-flocculation, sedimentation, sand filter, and disinfection units. Five L water samples were collected with a grab sampling technique in the sampling points of intake and outlet of each water treatment unit. MP abundance and characteristics in each sample were determined using a Sunshine SZM-45T-B1 stereomicroscope and a Nicolet i10 FTIR spectrophotometer. Total MP removal efficiencies in CDWTPs I and II were 66 and 62%, respectively. The coagulation-flocculation unit performed the highest MP removal efficiencies (56%). The MP with 1–350 μm size achieved lower removal efficiencies (33–53%) than that with 351-<5,000 μm size (53–76%). The removal efficiencies of fiber, fragment, and film in the CDWTPs were 61–65%; 86–100%; and 100%, respectively.
Źródło:
Journal of Ecological Engineering; 2023, 24, 6; 129--143
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transportation of drinking water in frame of inhabitants supply by road transport
Autorzy:
Tomek, Miroslav
Seidl, Miloslav
Powiązania:
https://bibliotekanauki.pl/articles/504679.pdf
Data publikacji:
2007
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
drinking water
emergency situation
road transport
Opis:
This article focuses on planning and realizing of supply by drinking water in case of emergency supply of inhabitants. It also deals with some specific technical means which can be used for transport of drinking water as well as for supply inhabitants in specific conditions of emergency situation.
Źródło:
Logistics and Transport; 2007, 5, 2; 115-122
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Use of Membrane Technologies of the CWTP to Obtain Quality Drinking Water
Autorzy:
Yelemanova, Aliya
Aliyarova, Madina
Begimbetova, Ainur
Jangaskina, Alina
Temirbekova, Marzhan
Powiązania:
https://bibliotekanauki.pl/articles/1955477.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water
ultrafiltration
nanofiltration
ultraviolet disinfection
Opis:
The purpose of the study is a scientific and theoretical substantiation of the energy characteristics of ultra and nano filtration, which directly depend on the quality of the source water, to ensure reliable and uninterrupted operation of a combined water treatment plant (CWTP), to obtain high-quality drinking water in water supply systems intended for settlements and industrial facilities. The developed method of combined operation of a water treatment plant is based on membrane technology, the efficiency of which directly depends on the preliminary improvement of the quality of purified low-mineralized water using an energy-efficient membrane, post-treatment and subsequent disinfection. Indicators of the quality of treated water that meet regulatory requirements and indicators of improving the energy efficiency of the water treatment plant have been investigated and calculated on the basis of experimental data. The results of studies on low-mineralized water made it possible to obtain TDS (Total dissolved solids) with a total residual concentration of hardness and chlorides in the range of 0.77 mg/dm3 without any problems. The proposed combined water treatment plant method is a priority among fundamental and applied works in the field of water treatment, it is intended for the purification of natural waters under conditions of increased anthropogenic loads on natural water sources.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 103-110
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recovery of Alum from Surabaya Water Treatment Sludge using Electrolysis with Carbon-Silver Electrodes
Autorzy:
Barakwan, Rizkiy Amaliyah
Hardina, Tyta Try
Trihadiningrum, Yulinah
Bagastyo, Arseto Yekti
Powiązania:
https://bibliotekanauki.pl/articles/123042.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
alum
drinking water
electrolysis
recovery
sludge
Opis:
Untreated alum sludge from Surabaya water treatment plant (WTP), which contained high concentration of alum was directly discharged into Surabaya River. It might cause problems because of the accumulation of aluminum in the lower part of the river. Alum could be recovered from the drinking water sludge using the electrolysis method. Aims of this study were to determine the optimum pH and electrical current for electrolysis using carbon-silver electrodes to recover aluminum coagulant from the sludge, and to determine the amount of the recovered alum. The sludge was acidified prior to electrolysis. Acidification was done by adding sulfuric acid at pH 3 and 4. Polarization test was conducted at 100, 200, and 300 mA, in order to determine the optimum electrical current. The electrolysis was performed in one compartment batch recirculation reactor, using silver as cathode and carbon as anode for 10 hours. Values of pH were measured every hour. The precipitated matter in the cathode was weighed, and analysed by means of Inductively Coupled Plasma. The optimum conditions of the electrolysis were achieved at initial pH 3 and electrical current 300 mA. The electrolysis resulted in the highest precipitate of 2.6112 g in the cathode.
Źródło:
Journal of Ecological Engineering; 2019, 20, 7; 126-133
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A technology of drinking water decontamination from radon and its decay products
Autorzy:
Voinov, Igor
Remez, Viktor P.
Ioshin, Alexey A.
Semenishchev, Vladimir S.
Gorchakov, Dmitry A.
Powiązania:
https://bibliotekanauki.pl/articles/148301.pdf
Data publikacji:
2020
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radon in drinking water
radon measurement
sorption
Opis:
Underground water is one of the main sources of radon for households. This article focuses on the estimation and removal of radon from underground water using the technology and inorganic sorbents developed by EKSORB Ltd., Russia for liquid radioactive waste treatment in the nuclear power industry. The article presents the results of tests of a system for the removal of radon and radon daughters from water patented by EKSORB. This is achieved by filtering water through RATZIR sorbent, followed by periodic load regeneration. Over a period of three years, the plant is successful in removing radon from the water that had an initial radon content of approximately 1500 Bq/L to less than 60 Bq/L, without releasing radon to indoor/outdoor air.
Źródło:
Nukleonika; 2020, 65, 2; 67-70
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possible applications of GIS tools in order to prepare for drinking water distribution network emergencies
Autorzy:
Salamon, Endre
Papp, Tamás
Goda, Zoltán
Powiązania:
https://bibliotekanauki.pl/articles/1311056.pdf
Data publikacji:
2021
Wydawca:
Akademia Sztuki Wojennej
Tematy:
simulation
drinking water
pipe networks
emergency planning
Opis:
Data acquisition and computerised analysis can be used to plan for emergencies related to important pipe networks. The objective of this study is to illustrate how GIS and hydraulic calculations may be used to reduce the impact of unexpected events, such as contamination and physical destruction and train operators for such scenarios. A case study with calibrated hydraulic calculations is used to investigate the uncertainty of the obtained information. Hydraulic conditions and contaminant transport are simulated with open source software. It is shown how GIS analysis can be utilised to find optimal solutions for flow redirection problems and shutting off portions of the network. A control system integrated network hydraulic simulation solution is described in order to make training and preparation more efficient. The investigation revealed serious deficiencies regarding the necessary input for running simulations. Contaminant transport results indicated that localisation based on computed water quality models is possible, but contains uncertainties. Data processing and simulation are shown to be a promising tool in decision support and preparation based on the applications outlined. Despite advanced databases and computerised analysis tools, collected data and dynamic simulation are not utilised to their full potential in the process of planning for emergencies. Based on the hypothetical simulation presented, further research and data collection are required to reduce the uncertainty of contaminant transport. For future research, more effort has to be put into developing simulation environments.
Źródło:
Security and Defence Quarterly; 2021, 34, 2; 21-36
2300-8741
2544-994X
Pojawia się w:
Security and Defence Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water disinfection in the mountains – an update of the recommendation of the Medical Commission of the Union Internationale des Associations d’Alpinisme (UIAA)
Autorzy:
Albanus, C.
Timmermann, L.
Schoeffl, V.
Hillebrandt, D.
Milledge, J.
Küpper, Thomas
Powiązania:
https://bibliotekanauki.pl/articles/2098266.pdf
Data publikacji:
2021-07-21
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
drinking water
infection
prevention
traveller’s diarrhoea
Opis:
Safe water is still a major problem for travellers in many countries worldwide. In the last decade several new technical developments were made and more data exist about traditional procedures to produce safe water. This update includes such data with special regard to UV-C and held devices and SODIS.
Źródło:
Health Promotion & Physical Activity; 2021, 15, 2; 40-55
2544-9117
Pojawia się w:
Health Promotion & Physical Activity
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of petroleum substances in the neighborhood of drinking water intake
Autorzy:
Solecki, T.
Powiązania:
https://bibliotekanauki.pl/articles/298864.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
drinking water intake
monitoring of water quality
petroleum substances
Opis:
This article concerns the monitoring of underground water quality in the vicinity of underground water intake, which is carried out continuously (quarterly) in six monitoring wells situated near the water intake. Groundwater occurring in this complex form a continuous and prosperous aquifer exploited with deep- water wells 19A and 19', intended to supply the population of part of Kraków with drinking and industrial water. Operated monitoring wells and holes are set in Czyżyny district in the protection zone of undergro- und water intakes Mistrzejowice. During the field research it were carried 41 quarterly measurements of petroleum substances at ground- water table. These tests were carried out using specialized equipment of Dutch company Eijkelkamp Agri- search Equipment, which can measure thickness of petroleum substances at groundwater table in each monitoring well. During the laboratory studies 41 quarterly measurements were performed. Determination and quantitative analysis of petroleum substances in groundwater samples were made. For laboratory testing methodology Fourier infrared spectroscopy was used. Laboratory studies of oil products in water samples showed the variable contents in each series. The statistical analysis was also done using Shewhart’ s control card.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 1; 39-48
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological Characteristics of Groundwater in Rural Areas of the Karaganda Region
Autorzy:
Shamshedenova, Samal
Beisenova, Raikhan
Rakhymzhan, Zhanar
Zhaznaeva, Zhanat
Syzdykova, Nazym
Tazitdinova, Rumiya
Khanturin, Marat
Powiązania:
https://bibliotekanauki.pl/articles/123381.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water
water quality
bacterial pollution
groundwater
environmental characteristics
Opis:
In this article, the purpose of the research was to study the ecological characteristics of groundwater and central water supply used for drinking and economic activity of the Kievka village. The hydrochemical indicators of the samples were determined with conventional methods, and performed on 16 indicators: pH, electrical conductivity, suspended solids, dry residue, chlorides, sulfates, phosphates, total hardness, sodium, ammonium nitrogen, nitrites, nitrates, chemical oxygen consumption (COD), anionic surfactants (APAS), total iron, and manganese. While assessing the hydrochemical state of drinking water in the village of Kievka, it can be noted the "Altyn-dan" kindergarten and the Kiev secondary school No. 3, exceed the MAC which is determined by certain indicators. As a result of microbiological studies of the water samples from the village of Kievka, it was revealed that the total microbial number is normal. It was determined that a different number of fungi and actinomycites were present in all samples. At the initial concentration, a large concentration of fungi was observed in all samples.
Źródło:
Journal of Ecological Engineering; 2019, 20, 11; 67-75
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient control of coagulant dosing in wastewater treatment
Skuteczna kontrola dozowania koagulantu w oczyszczaniu ścieków
Autorzy:
Ratnaweera, H.
Smoczynski, L.
Lewandowski, A.
Bielecka, M.
Powiązania:
https://bibliotekanauki.pl/articles/807224.pdf
Data publikacji:
2005
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
dosing control
coagulant
waste water treatment
drinking water treatment
Opis:
Coagulant dosing control (CDC) is necessary to ensure stable treated water quality and to reduce chemical costs both in drinking and wastewater treatment plants. The rapid development in online sensors and equipment as well as control strategies has triggered a significant development in CDC. Software sensors, streaming current detectors, charge titration units, potential dispersion analyzers etc. are now successfully used. Despite the significant advancement in the introduction and use of these novel techniques, most plants still relay on simple CDC techniques like flow proportional dosing, leaving great opportunities to reduce the coagulant costs, sludge treatment costs while achieving better treatment efficiencies overall. The paper presents a novel concept to optimize coagulant dosing control in wastewater treatment plants, and an intention to develop a widely available solution using a Polish-Norwegian Research & Development venture.
Kontrola dozowania koagulantu (KDK) jest konieczna w celu zapewnienia stabilnej jakości wody, jak i obniżenia kosztów zarówno w stacjach uzdatniania wody, jak i w oczyszczalniach ścieków. Wraz z wielkim postępem w strategii i technologii tzw. czujników „online” obserwuje się również znaczny rozwój w zakresie KDK. Zdecydowanie zwiększa się zakres czujników procesorowych, czujników w ciągłym przepływie, zestawów miareczkujących do oznaczania ładunku, analizatorów despersji itp. W przeciwieństwie do znacznego zaawansowania we wprowadzaniu i zastosowaniu tych nowatorskich technik, większość oczyszczalni ciągle opiera się na prostych systemach KDK, typu ciągłego dozowania proporcjonalnego, nie uwzględniając wielkich możliwości redukcji kosztów zużycia koagulantu i obróbki osadów, które istotnie wpływają na efektywność pracy oczyszczalni. Praca niniejsza przedstawia nowatorską koncepcję optymalizowania dawki koagulantu w oczyszczalniach ścieków oraz możliwości rozszerzenia dostępności tych rozwiązań w Polsce poprzez Polsko-Norweską Instytucję Naukowo-Rozwojową.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2005, 505
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment and Physicochemical Characterization of Groundwater Quality for Irrigation and Drinking Purposes in Bazer Sakhra (Eastern Area of Algeria)
Autorzy:
Bounab, Samia
Khemmoudj, Kaddour
Sedrati, Nassima
Powiązania:
https://bibliotekanauki.pl/articles/2173296.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater
drinking water
irrigation water
water quality index
hydrochemical facies
Opis:
Twenty groundwater samples were collected and then examined for physical (pH, EC, TDS) and chemical (Na+, K+, Ca2+, Mg2+, HCO3−, Cl−, SO42−, NO3) parameters, followed by multivariate statistics to determine the current state of groundwater quality and to assess the suitability of these resources for drinking and irrigation purposes in the Baser Sakhra area localized in Eastern of Algeria. The analysis carried out showed that the cations trend in most of the groundwater samples is on the order of Ca2+˃Na+˃Mg2+˃K+ and the anions trend is on the order of HCO3-˃SO42-˃Cl-. Stabler diagram demonstrated the predominance of Ca2+- HCO3- hydro-chemical facies (80%). Moreover, the parameters, such as sodium adsorption ratio, percentage sodium, residual sodium carbonate, permeability index, Kelly’s ratio, potential salinity, and magnesium hazard were evaluated for the suitability of groundwater for irrigation. The values obtained in this investigation concluded that most of the groundwater samples are suitable for irrigation. From the other approach, the Water Quality Index (WQI) for drinking was also used in the current study. WQI ranged from 72.46 to 506.426, indicating that 40% of the samples were suitable for drinking however, 60% of them belong to the poor to unsuitable category of drinking water in terms of physicochemical properties, according to the World Health Organization norms.
Źródło:
Journal of Ecological Engineering; 2022, 23, 8; 119--132
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physico-chemical quality of drinking water in the south of Algeria (Case of El-Oued region) study of excess minerals
Autorzy:
Zobeidi, A.
Moussaoui, L.
Powiązania:
https://bibliotekanauki.pl/articles/411625.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
mineral salts
drinking water
El-Oued
urinary calculi
Opis:
The aim of this study was to determine the physicochemical composition of water intended for human consumption in several regions of El-Oued - Algeria. Excess minerals in drinking water, including magnesium, calcium, sulfates, chloride and fluorides play a fundamental role in the prevention of urinary calculi, which are formed mainly from calcium oxalate. The results revealed that wholes water samples are analyzed magnesium ([Mg 2+] > 50 mg / L). The rate of sulfate ions average 638 mg / l, exceeding the maximum allowable concentration (MAC) recommended by WHO ([SO42ˉ] > 250 mg / L). In addition, 85 % had excess fluoride [Fˉ] > 0.85 mg / L, and 100 % are calcium, the rate of Ca2+ is greater than 150 mg / L.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 11; 38-43
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Groundwater Contamination and Health Risk Evaluation of Naturally Occurring Potential Toxic Metals of Hatiya Island, Bangladesh
Autorzy:
Rahman, Mahfuzur
Khan, Md. Sadril Islam
Hossain, Mohammad Sabbir
Hossain, Md. Imam Shohel
Hasan, Mahmudul
Hamli, Hadi
Mustafa, M. Golam
Powiązania:
https://bibliotekanauki.pl/articles/2105279.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water
toxic elements
pollution indices
Hatiya Island
Opis:
Groundwater meets the majority portion of drinking water needs, particularly in the rural area of Bangladesh. Groundwater has been continuously contaminated by potentially harmful metals as a result of natural processes as well as some anthropogenic activities, creating a variety of health impacts. The current research aimed to evaluate the naturally occurring level of metal contamination and the human health risk associated with deep groundwater in the Hatiya Island. Because of the arsenic, iron, and salinity problem in shallow groundwater, the inhabitants of the Hatiya Island use deep groundwater. During the field investigation, no shallow tubewells were observed; therefore, only deep groundwater samples were collected. The total sample size collected throughout the Hatiya island was 17. Five metals (Zn, Fe, Mg, Mn, and Cu) were analyzed using an Atomic Absorption Spectrophotometer (AAS). The concentrations of studied potential risky metals were ranked as follows: Mg > Zn > Fe >Mn> Cu. The detected values of all metals except Fe were found within the drinking water limits of WHO (2017), BIS (2012), and BDWS (1997), where only 29.41% of the Fe sample exceeded the standard drinking limits. According to the metal evaluation index (MEI) and degree of contamination (Cd), the groundwater of the study area is free from contamination but the metal pollution index (MPI) and nemerow pollution index (NI) exhibited little pollution in the mid-western part of the study area. The hazard quotient (HQ) values revealed no oral and dermal health risk for individual metals (Cu, Zn, Fe, Mn). On the other hand, the hazard index (HI) values exhibited no risk for combined metals as none of the values exceeded the safety limit value of 1. According to the HQ and HI results, the deep groundwater on Hatiya Island is non-carcinogenic and risk-free for children and adults. However, children were more susceptible to oral health risks than adults. In contrast, adults were more vulnerable to dermal health risks than children.
Źródło:
Journal of Ecological Engineering; 2022, 23, 6; 223--236
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza czynników wpływających na zmiany składu chemicznego wód przeznaczonych do spożycia
Analysis of factors influencing changes of drinking water chemical composition
Autorzy:
Wątor, K.
Kmiecik, E.
Postawa, A.
Powiązania:
https://bibliotekanauki.pl/articles/2075619.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
woda pitna
analiza czynników
drinking water
factor analysis
Opis:
Drinking water samples were collected from 501 points in five cities located in south Poland - Kraków, Myszków, Jaworzno, Racibórz and Kamienna Góra, using the random daytime sam-pling method (RDT). All samples were collected by trained samplers from randomly chosen buildings, at random hours and without prior flushing. Analysis of chemical composition of water samples was conducted at the certified Hydrogeochemical Laboratory of AGH - University of Science and Technology in Kraków. Concentrations of selected trace elements (As, Cr, Zn, Al, Cd, Mn, Cu, Ni, Pb, Fe) and major ions (Na, Ca, Mg, K, Cl-, SO42-, HCO3¯) were measured. The principal component analysis was performed. The dimension reduction was made on the basis of major ions. Two principal components were used: the first one was dependent on the concentration of Cľ , SO42-, NaandK, and the second one included the concentration of Mg, Ca and HCO-. The analysis indicated a diversity of the results in virtue of sampling site. Three groups of results were clearly indicated: the first one represented water samples from Kraków and Kamienna Góra, the second one - samples from Myszków and Racibórz, and the third group was were the samples collected in Jaworzno. This diversity results from the type of water intake (groundwater and surface water), manner of water water supply systems.
Źródło:
Przegląd Geologiczny; 2017, 65, 11/2; 1388--1392
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chlorine and chlorine dioxide oxidation of natural organic matter in water treatment plants
Autorzy:
Özdemir, Kadir
Powiązania:
https://bibliotekanauki.pl/articles/2032873.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
chlorine
drinking water
trihalomethane
chlor
woda pitna
trihalometan
Opis:
The formation of trihalomethanes (THMs) during chlorine (Cl2) and chlorine dioxide (ClO2) treatment was investigated. Water samples were collected from three drinking water sources, namely, Büyükçekmece Lake water (BLW) in Istanbul City, Kızılcapınar Lake water (KLW), and Ulutan Lake water (ULW) in Zonguldak City, Turkey. The results of the study show that Cl2 treatment forms more THMs in all three water sources compared to ClO2treatment. Further, due to the Cl2treatment, the maximum THMs concentrations were observed in BLW (121.15 μg/dm3) samples, followed by KLW (97.26 μg/dm3) and ULW(88.52 μg/dm3) samples within the reaction time of 24 h for 5 mg/ dm3 of Cl2dose. However, it was found that the concentrations of THMs formed at three water sources with applied ClO2treatment under the same conditions were significantly reduced. As a result of the ClO2treatment at the end of the reaction time of 24h, THMs concentrations formed in BLW, KLW, and ULW were recorded as 30.26, 16.53, and 17.71 μg/ dm3, respectively. On chlorination, chloroform (CFM) was found the dominant THM species in all water sources. All THM species contents ranged from 1.98 μg/dm3 to 11.23 μg/ dm3 and the highest level of dibromochloromethane (BDCFM) was observed as the major THM species among all species in BLW due to the ClO2treatment. Also, the formation of inorganic DBPs such as chlorate (ClO3–) and chlorite ClO2–) was evaluated during Cl2oxidation. The levels ClO2– formed due to the ClO2 oxidation were higher than those of ClO3– levels for BLW, KLW, and ULW samples and varied from 19 to 55%, and from 37 to 60% of the applied ClO2 doses (2–10 mg/ dm3), respectively. On the other hand, ClO3– levels varied between 5 and 9% and 2 and 6% of the applied ClO2concentration for the KLW and ULW samples, respectively.
Źródło:
Environment Protection Engineering; 2020, 46, 4; 87-97
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teoreticheskie osnovy aktivirovanija rastvorov koaguljanta sul'fata aljuminija pri podgotovke pit'evojj vody
Theoretical bases activation coagulant solutions of aluminum of sulfate for preparation of drinking water
Autorzy:
Epojan, S.
Dushkin, S.
Ajjrapetjan, T.
Powiązania:
https://bibliotekanauki.pl/articles/76354.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
drinking water
electrokinetic potential
adsorption
water treatment
intensification
aluminium sulphate
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 6
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water management problems at the Bukówka drinking water reservoir’s cross-border basin area in terms of its established functions
Autorzy:
Wiatkowski, M.
Rosik-Dulewska, C.
Powiązania:
https://bibliotekanauki.pl/articles/124624.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water reservoir
water management
cross-border basin area
water quality
Opis:
The paper covers the analysis of water management problems in the cross-border reservoir basin of Bukówka, located at the Bóbr river, at 271+540 km of its course, below the Czech-Polish border, in Dolnośląskie Voivodeship. The problems of water management in the context of the reservoir’s functions have been analyzed; these are: flood control, the provision of water during low water level periods for the Water Treatment Plant in Marciszów, the provision of drinking water for the city of Wałbrzych as well as the provision of proper flow in the Bóbr river bed downstream from the reservoir. Due to its localization right below the border with the Czech Republic, the reservoir is exposed to a number of problems. The study has found that the main problems of water management in the basin area included unsatisfactory state of water and wastewater management in the basin, unsatisfactory state of the surface water quality in the basin area of the reservoir, poor condition of streams and drainage ditches, improper arrangement of arable lands and large downslopes and a lack of monitoring stations on tributaries of the reservoir. It has been found that the hydrochemical conditions in the Bukówka reservoir’s section are unfavorable for it. From the eutrophication point of view, the water flowing into the tank is characterized by a large content of nutrients, especially nitrates, phosphates and BOD5. In order to counteract eutrophication it is necessary to lower the concentration of nutrients in the water flowing into the tank. One of the basic ways to do so is to restore the water and wastewater management in the reservoir’s basin. Studies in the Bukówka reservoir provide important information concerning the state of the purity of the water supplying the reservoir. In order to obtain accurate information on the state of purity, a monitoring of hydrological and water quality should be continued. The studies are a part of the strategy of protection of the quality of transboundary waters, proposed in the Convention on the Protection and Use of Transboundary Watercourses and International Lakes of 1992.
Źródło:
Journal of Ecological Engineering; 2015, 16, 2; 52-60
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water (in) security – modern security paradigm
Autorzy:
Prebilič, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/1199401.pdf
Data publikacji:
2019-06-30
Wydawca:
Uniwersytet Gdański. Instytut Geografii
Tematy:
water security
national security
drinking water
water footprint
water stress
water consumption
Opis:
Water. In the existence and activities of each individual it is water that (un) consciously essentially defines them. Therefore, water is called the source of life, but nowadays we know it under the new concept: blue gold. The reason for such a modern understanding of the role of water lies in the increasing limitations of access to sufficient quantities, which first results in water stress – the situation where needs remain unmet, but water scarcity does not yet interfere with the foundations of the activities of societies. Water stress is thus the first form of threat to water security, especially when deficiency destroys all basic social systems that cannot function without water. The question of the role of water between them is increasingly being raised, as the operation of one system in the area of water consumption or management can mean interfering with the water potential of another system. This confronts us with the effect of the definite quantities of water, although countries with ample water resources and quantity (still) often do not understand or perceive it. Of course, this does not mean that the debate is not necessary; it is, conversely, necessary, and it is only in this way that it is possible to prevent or at least control the situation in which many countries around the world have found themselves and there is a total lack of water resources in the most existential aspects. Under these conditions, water security has become the most essential element of national security of these countries and thus a potential weak link in ensuring security.
Źródło:
Journal of Geography, Politics and Society; 2019, 9, 2; 1-9
2084-0497
2451-2249
Pojawia się w:
Journal of Geography, Politics and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water deficits in the water economics complex of Crimea
Autorzy:
Dunaieva, Ielizaveta
Popowych, Valentina
Melnichuk, Aleksandr
Terleev, Vitaly
Nikonorov, Aleksandr
Mirschel, Wilfried
Topaj, Alex
Shishov, Dmitry
Powiązania:
https://bibliotekanauki.pl/articles/108512.pdf
Data publikacji:
2019
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
water economic complex
water quality
deficit
wastewater treatment
water desalination
drinking water
Opis:
In recent years, the natural and economic situation in the Republic of Crimea has developed in such a way that the amount of available water resources is less than the amount of water necessary for the socio-economic development of the peninsula. This article considers one of the main water management hazards for the territory of Crimea: a lack of water. The aim of this study was to assess the water deficit and determine ways to minimize the impact of risk exposures on the population, the economy and the ecosystem as a whole. Options are provided to ensure that (1) the water economic complex supplies water to consumers in sufficient quantity and quality, and (2) the ecological status of water bodies is maintained at a high level. For example, local wastewater treatment and desalination of sea water can be used in agro-industry and the water economic complex both for individual agricultural producers and for large enterprises. The economic efficiency of the use of technologies to reduce the environmental threats of the water economic complex was assessed using technologies to increase water availability. The analysis of the quality of water resources is given, and options for improving the indicators of raw water-pipe water are proposed.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2019, 7, 1; 57-64
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of trihalomethane formation after chlorine dioxide preoxidation followed by chlorination of natural organic matter
Autorzy:
Özdemir, Kadir
Powiązania:
https://bibliotekanauki.pl/articles/2032930.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ClO2
THM
trihalomethane
drinking water
trihalometan
woda pitna
Opis:
Chlorine dioxide (ClO2) is widely used as powerful oxidant to remove taste, odor and pathogenic microorganisms with chlorine during water treatment. In this study, the formation of trihalomethanes (THMs) was investigated in sequential ClO2 and chlorination processes. During the study, water samples were collected from Terkos Lake water (TLW) and Büyükçekmece Lake water (BLW) in Istanbul. To understand the relationship between the formation of THMs and the characteristics of natural organic matter (NOM), changes in the molecular weight (MW) of NOM fractions before and after ClO2 oxidation were characterized with the ultrafiltration technique. The NOM fraction with MW <1 kDa is the dominant fraction among all the fractionated water samples. ClO2 oxidized NOM to more hydrophilic and smaller organic fractions as seen in the NOM fraction with MWCO <1 kDa. ClO2 preoxidation reduced THM concentrations but produced chlorite (ClO2 –) and chlorate (ClO3 –). The increase in ClO2 doses enhanced the reduction percentages of THMs during subsequent chlorination in water samples without or with bromide application. Bromine incorporation was higher in ClO2ClO2 preoxidized TLW and BLW samples. As a result, the findings of this study demonstrated that ClO2 preoxidation prior to chlorination is an applicable strategy for control of THMs in water treatment.
Źródło:
Environment Protection Engineering; 2021, 47, 2; 125-137
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bateria zbiorników wyrównawczych na wodę pitną w Arłamowie - pięciogwiazdkowa technologia
Autorzy:
Krasuska, E.
Powiązania:
https://bibliotekanauki.pl/articles/363852.pdf
Data publikacji:
2012
Wydawca:
Nowoczesne Budownictwo Inżynieryjne
Tematy:
instalacja
woda pitna
zbiornik wyrównawczy
drinking water
installation
reservoir
Opis:
Nagrodzona Grand Prix na konferencji INFRAEKO 2012 bateria zbiorników wyrównawczych Weho produkcji KWH Pipe Poland Sp. z o.o. już w przyszłym roku będzie służyła gościom nowo budowanego Wschodnioeuropejskiego Centrum Kongresowo-Sportowego w Arłamowie.
Źródło:
Nowoczesne Budownictwo Inżynieryjne; 2012, 5; 36-38
1734-6681
Pojawia się w:
Nowoczesne Budownictwo Inżynieryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment and Mapping of Groundwater Quality for Irrigation and Drinking in a Semi-Arid Area in Algeria
Autorzy:
Azlaoui, Mohamed
Zeddouri, Aziez
Haied, Nadjib
Nezli, Imed Eddine
Foufou, Atif
Powiązania:
https://bibliotekanauki.pl/articles/1955501.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater
drinking water
WQI
irrigation water
SAR
plain of Ain Oussera
Opis:
Groundwater is the main resource used to meet the people’s drinking water and irrigation needs of the Ain Oussera plain, because of the lack of surface-water resources. This paper intended to evaluate the suitability of groundwater for agriculture and drinking in the Ain Oussera plains. The data of the study were gathered and analyzed from twenty (20) groundwater samples collected to assess the plain groundwater quality, using the Water Quality Index (WQI) and GIS, carried out on physico-chemical parameters, including potential of hydrogen (pH), total dissolved solids (TDS) electrical conductivity (EC), potassium (K+), sodium (Na+), magnesium (Mg2+), and calcium (Ca2+) and major anions (Cl, HCO3, NO3, SO4), as well as, the water suitability test for agricultural purposes, using the sodium adsorption ratio. These parameters were inserted into the GIS platform to create a spatial distribution map for each parameter using the inverse interpolation technique (IDW). The results indicated that the concentrations are within the Algerian permissible limits. The water quality index (WQI), which evaluates the suitability of water for consumption, varies from 31 to 173 with an average value of 81. 70% of the samples from the Ain Oussera plain fall within the excellent and good quality categories. Its water is suitable for consumption (WQI < 100), while 30% is in the poor water category. From the calculation of SAR values, it was found that 90% of the groundwater samples are considered excellent and suitable for irrigation. According to the classification of the United States Salinity Laboratory USSL, the Ain Oussera water quality is classified as poor for irrigation purposes.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 19-32
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing Groundwater Quality for Drinking Purpose in Jordan: Application of Water Quality Index
Autorzy:
Ibrahim, Mohamad Najib
Powiązania:
https://bibliotekanauki.pl/articles/124859.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality index
groundwater quality
drinking water
Escherichia coli
hydrochemistry
Jordan
Opis:
Groundwater is a key source of drinking water in Jordan. This study was conducted to assess the suitability of groundwater in major groundwater basins in Jordan for drinking purposes. The groundwater quality data from sixteen sampling stations within one-year-monitoring period from March 2015 to February 2016 were used. Weighted arithmetic water quality index (WQI) with respect to the Jordanian standards for drinking water was used for quality assessment. Sixteen Physical, chemical and microbiological parameters were selected to calculate WQI. The result showed that all physical and chemical parameters were almost below the maximum allowable level based on the Jordanian standards for drinking. On the other hand, the microbiological parameter (i.e. E.coli count) was exceeded the maximum allowable limit in all the studied locations based on the Jordanian standards for drinking water. The computed WQI values range from 40 to 4295. Therefore, out of 16 studied locations, three locations are classified in the “Excellent water” class, nine locations as a “Good water” class, one as a “Poor water” class, two as a “very poor water” class, and one as a “water unsuitable for drinking purpose” class. Furthermore, Escherichia coli is considered the most effective parameter on the determination of WQI in this study. This result highlighted the importance of including the microbiological parameters in any drinking water assessment, since they reflect with other physical and chemical parameters the actual condition of water quality for different purposes.
Źródło:
Journal of Ecological Engineering; 2019, 20, 3; 101-111
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bottled waters as a source of minerals
Wody butelkowane jako źródło składników mineralnych
Autorzy:
Gatarska, A.
Powiązania:
https://bibliotekanauki.pl/articles/5317.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
water
bottled water
mineral source
drinking water
mineral content
natural water
information
consumer
Opis:
The aim of the study was to determine the content of minerals in bottled waters (natural mineral water and spring water) and compare the results with information declared by the manufacturers. Nineteen types of bottled natural waters available on the local market were examined with flame atomic absorption spectrometry. The results of analyses of bottled waters available on the market showed significant differences in the concentration of the minerals. These differences depended not only on type of the water but was found within one type of product. In addition, the concentrations of the cations under study differed significantly from the values declared by the manufacturers. The biggest discrepancy was detected in the concentration of magnesium ions; in this case, the actual content was incompatible with the declared by the manufacturer one in about 80% of tested samples. These results give also valuable information for consumers, which should be conscious that not every bottled water, it is alike valuable source minerals.
Celem niniejszej pracy była ocena zawartości wybranych związków mineralnych w wodach butelkowanych (naturalnych wodach mineralnych i wodach źródlanych) oraz porównanie uzyskanych wyników z wartościami deklarowanymi przez producentów. Ocenie poddano dziewiętnaście wód butelkowanych dostępnych na rynku. W badanych produktach dokonano oceny zawartości takich makroelementów, jak: wapń, magnez, sód i potas. Zawartość makroelementów w postaci jonów w badanych próbkach wód butelkowanych oznaczono techniką płomieniowej spektrometrii absorpcji atomowej. Uzyskane wyniki badań wód butelkowanych występujących na rynku wskazują na duże zróżnicowanie w zawartości takich składników mineralnych, jak: wapń, magnez, sód, potas. Zróżnicowanie to stwierdzono nie tylko pośród różnych rodzajów naturalnych wód butelkowanych, lecz również w obrębie jednego rodzaju produktów. Ponadto oznaczone zawartości poszczególnych kationów znacznie się różnią od tych deklarowanych przez producenta. Największe niezgodności stwierdzono w przypadku zawartości jonów magnezu, gdzie w około 80% badanych próbek rzeczywista zawartość tych jonów była niezgodna z deklarowaną przez producenta. Uzyskane wyniki badań dają także cenne informacje konsumentom, którzy powinni być świadomi, że nie każda woda butelkowana jest jednakowo cennym źródłem oznaczanych związków mineralnych.
Źródło:
Nauki Inżynierskie i Technologie; 2013, 1(8)
2449-9773
2080-5985
Pojawia się w:
Nauki Inżynierskie i Technologie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
NORM in drinking water - measurements using ultra low-level liquid scintillation spectrometry and consideration for compliance with the EU Drinking Water Directive
Autorzy:
Schonhofer, F.
Maringer, F.
Powiązania:
https://bibliotekanauki.pl/articles/340851.pdf
Data publikacji:
2004
Wydawca:
Główny Instytut Górnictwa
Tematy:
radioaktywne skażenie wody
NORM w wodzie pitnej
dyrektywa EU w sprawie jakości wody pitnej
radioactive water contamination
NORM in drinking water
EU drinking water directive
Źródło:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2004, 1; 139-139
1643-7608
Pojawia się w:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the Hauterivian groundwater quality in zinc mining area for drinking and irrigation uses: Case of Chaabet el Hamra, Algeria
Autorzy:
Kada, Houria
Demdoum, Abdslem
Powiązania:
https://bibliotekanauki.pl/articles/293324.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Chaabet el Hamra
drinking water
Hauterivian groundwater
irrigation
quality
Setif
Opis:
In order to evaluate the water quality of the Hauterivian groundwater in the zinc deposit of Chaabet el Hamra, Southern Setif region, Algeria, eighteen physico-chemical parameters such as pH, EC, TDS, Cl, SO42−, HCO3, CO32−, NO3, Ca2+, Mg2+, Na+, K+,, and heavy metals Zn, Pb, Fe, Cr, Cd, Mn were analyzed and collected from six different wells in April 2012. The studied groundwater is dominated by HCO3, Ca2+, and Mg2+ ions. According to the World Health Organization (WHO) and Algerian standards, all groundwater samples are considered safe and fit for drinking as they fall within the permissible limits. In addition, the Schoeller diagram confirms the best quality water of the Hauterivian groundwater. Gibbs diagram show that the predominant samples fall in the rock-water interaction field, suggesting that water-rock interactions are the major mechanism controlling groundwater chemistry. Assessment of groundwater samples using various water quality indices such as sodium absorption ratio (SAR), soluble sodium percentage (SSP), residual sodium carbonate (RSC), magnesium hazard (MH) and Kelly ratio (KR) showed that the groundwater in the area has an excellent quality for irrigation purpose. According to Wilcox’s diagram, all groundwater samples fall in the C2S1 category, reflecting that they are suitable for irrigation.
Źródło:
Journal of Water and Land Development; 2020, 46; 131-139
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chlorine decay and formation of THM in Malaysia’s water distribution system
Autorzy:
Rashid, Aina Izzati Muhammad
Rohani, Rosiah
Jaafar, Othman
Muhammad, Nur Shazwani
Powiązania:
https://bibliotekanauki.pl/articles/2032845.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
drinking water
trihalomethane
Malaysia
disinfection
woda pitna
trihalogenometan
Malezja
dezynfekcja
Opis:
Chlorine is a popular disinfectant used in Malaysia in the treatment process of drinking water supply because of its effectiveness. The concentration of chlorine deteriorates upon travelling in the system due to its reaction with organic matter to produce carcinogenic substances known as disinfection by-products (DBP) such as trihalomethanes (THM). This study was conducted to investigate chlorine decay and THM formation in a state's drinking water distribution system in Malaysia specifically across a 24.9 km distance. EPANET 2.0 Software program was used to perform hydraulics and water quality analysis using the extended period simulation (EPS) for 24 hours demand pattern. A simulation of the water distribution system was performed to identify the formation of THM and its relationship between chlorine and total organic carbon (TOC). The value of THM was maintained at a lower level at the water treatment plant (WTP) than at the endpoint of the distribution system. At the endpoint, which was at the targeted industrial area, the level of THM was found to increase and the obtained data showed that its formation occurred along the investigated distribution system. THM formation manifested as the natural organic matter (NOM) presence along the pipe continuously reacted with chlorine which was dosed in the distribution system.
Źródło:
Environment Protection Engineering; 2021, 47, 4; 19-41
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Biofilms From Selected Synthetic Materials Used in Water Distribution System
Autorzy:
Biedroń, I.
Traczewska, T.
Konieczny, T.
Płaza, G.
Powiązania:
https://bibliotekanauki.pl/articles/952367.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biofilm
metabolic profile
drinking water
bacteria consortia
phenotypic microarray
PM
Opis:
Materials like polyvinyl chloride (PVC), polypropylene (PP), ultra high molecular weight polyethylene (UHMW-PE) are used for the construction of drinking water supply systems. It was found that regardless of the type of material the distribution network is built of, microorganisms formed biofilms on every available surface. The pipes material plays a key role in terms of biofilm formation. Important factors are the surface roughness, adhesives, plasticizers, stabilizers, which can be a source of nutrients for bacteria. The metabolic activity of microorganisms on polymer materials, induces migration of compounds from the material into water. The aim of this study was to present the differences in the structure and the metabolic profile of biofilm formed on the technical materials.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 284-293
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of Pipe Networks Using EPANET to Optimize Water Supply : a Case Study for Arjawinangun Area, Indonesia
Autorzy:
Safitri, Adam
Wahyudi, Slamet Imam
Soedarsono
Powiązania:
https://bibliotekanauki.pl/articles/31340458.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
drinking water
EPANET 2.0
hydraulic simulation
optimization
pipeline Network
Opis:
In providing clean water services to a community, a clean water supply distribution network system is very important. This study is aimed at the determination of the distribution pipe network by simulating and optimizing the water supply system in the Arjawinangun area, Cirebon, West Java, Indonesia. The data collected was analyzed by using EPANET 2.0 software for modelling water distribution systems. The results show that the total domestic and non-domestic water demand is 391.41 l/s, with a leakage rate of 20%. The pipeline installation plan for the Arjawinangun area is planned to be installed for a length of 23,045 m, with pipe diameters ranging from 400 to 90 mm. The Arjawinangun Area Offtake Reservoir drainage system, which is at an elevation of +25 m above sea level, requires a distribution pump with a head (H) of 6.0 bar. Also, using the gravity distribution technique, a water tower can be built (~ 55 m) as a water supply booster pump.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2023, 70, 1; 17-28
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical and Bacteriological Status of Surface Waters and Groundwater in the Selected Catchment Area of the Dunajec River Basin
Autorzy:
Nowobilska-Luberda, A.
Powiązania:
https://bibliotekanauki.pl/articles/124164.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater intakes
drinking water
water quality indicators
surface waters
Dunajec catchment area
Opis:
The aim of the study was to assess the qualitative status of groundwater and surface water abstracted for the needs of customers in the city of Nowy Targ. The assessment was based on the results of physicochemical analyses of 62 water samples taken from the water intake on the Biały Dunajec stream in Szaflary (emergency water intake) and 280 samples taken from 6 active groundwater intakes in Nowy Targ. The basic descriptive statistics of manganese, iron, magnesium, calcium, chlorides, sulphates, phosphates, phosphates, ammonia, nitrites, nitrites, nitrates, chromium, zinc, indicators such as: dissolved oxygen, BOD5, suspension, phenols, PUR, pH, total hardness, alkalinity and number of coli bacteria were determined. The water analyses were performed in the period 2004-2016. Basic descriptive statistics of manganese, iron, magnesium, magnesium, calcium, chlorides, sulphates, phosphates, ammonia, nitrites, nitrates, chromium and zinc ions, as well as such indicators as: dissolved oxygen, BOD5, suspension, phenols, PEW, pH, total hardness, alkalinity and number of coli bacteria were determined. The quality of the captured waters was classified on the basis of the results obtained, noting that the water from the Biały Dunajec stream corresponds to the A3 purity category due to the microbiological contamination. According to the physicochemical standard, A3 category was also determined on the basis of the phenol concentration, which, however, decreased significantly since 2013, corresponding to category A1. For groundwater, on the other hand, it was established that all analysed indicators corresponded to class I purity grade, i.e. water of a very good quality. The only excess over the values corresponding to this class was recorded for calcium ions, but the classification of water quality has not changed due to the fact that it was caused by natural processes. Taking into account the above-mentioned findings, it was concluded that due to the very good groundwater quality, their intakes should be left as the main source of water for consumers in Nowy Targ, while the surface water intake on the Biały Dunajec stream should be maintained concurrently as an emergency intake.
Źródło:
Journal of Ecological Engineering; 2018, 19, 3; 162-169
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Projekty systemów do produkcji wody pitnej z wody morskiej z zastosowaniem geotermii
Project of system for fresh water production using geothermal energy
Autorzy:
Pawlikowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/183476.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
woda morska
woda pitna
energia geotermalna
sea water
drinking water
geothermal energy
Opis:
Modern technology of fresh water production using sea water and geothermal energy is presented. Two methods are described: 1- technology with the use of geothermal springs (natural) or hot water obtained from boreholes as heating medium for distillation of sea water, 2- technology allows the production of drinking water from sea water by means of the energy obtained from water heated by hot ground.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2/1; 227-231
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Algerian Sahara groundwater for irrigation and water supply : Adrar region study case
Autorzy:
Bendida, Ali
Kendouci, Mohammed Amin
Tidjani, Abdellatif El-Bari
Powiązania:
https://bibliotekanauki.pl/articles/1844345.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Adrar area
Algerian Sahara
drinking water
groundwater
hydrochemical
irrigation water
Piper diagram
Opis:
Groundwater hydrochemistry of Algerian Sahara (Southwest, Algeria) was used to assess groundwater quality to determine its suitability for drinking and agricultural purposes. A total of 26 groundwater samples were analysed for 14 parameters. Standards laboratory methods were used to determine physicochemical groundwater properties. This study shows that these pH, electric conductivity, total hardness, bicarbonate, and phosphate were within WHO limits. The concentration of magnesium ranging from 30.49 to 120 mg∙dm–3 with an average value of 67.21 mg∙dm–3. 38.56% of the water points analysed have a concentration lower than the value set by the WHO at 75.00 mg∙dm–3. It also showed that 70% of the points studied have potassium concentrations that exceed World Health Organization standards. Groundwater of Algerian Sahara is low in nitrogen (NO3–) and the higher concentration may result in various health risks. The result for this study showed that the water was to be found suitable for drinking purposes except for few samples. Piper diagram indicates that groundwater in Adrar belongs to chlorinated-sulphated, sodium and magnesium facies. The groundwater samples of Adrar present high salinity and low alkalinity fall into the field of C3S1 and C3S2. Based on the RSC values, all samples had values less than 1.25 and were good for irrigation.
Źródło:
Journal of Water and Land Development; 2021, 49; 235-243
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of factors affecting bulk chlorine decay kinetics for the Zai water supply system in Jordan. Case study
Autorzy:
Saidan, M. N.
Rawajfeh, K.
Nasrallah, S.
Meric, S.
Mashal, A.
Powiązania:
https://bibliotekanauki.pl/articles/207375.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
woda pitna
jakość wody
stężenie chloru
drinking water
water quality
chloride concentration
Opis:
Chlorine decay behavior is significantly variable since it depends on the quality of water and the condition of a distribution system. The effect of various parameters on the bulk chlorine decay kinetics in water samples collected from the Zai water treatment plant in Jordan has been examined. These parameters are reaction time, temperature, TOC, and free chlorine dose. An empirical equation describing the abovementioned effects has been derived. The general trend of chlorine decay decreases upon time and can fairly be represented by first-order decay kinetics. An increase in the value of temperature and TOC parameters has proportional effects on the decay of bulk chlorine. However, the data show that the decay constants were found to be inversely proportional to the initial chlorine concentration. A general correlation for the calculation of bulk chlorine decay rate constant as a function of the parameters in question of this study has been proposed. Consequent predictions are in good agreement with the observed results in this study.
Źródło:
Environment Protection Engineering; 2017, 43, 4; 223-231
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innowacyjna technologia uzdatniania wody dla gospodarstw z produkcją zwierzęcą
Innovative technology of water treatment for the animal farms
Autorzy:
Eymontt, A.
Wierzbicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/239180.pdf
Data publikacji:
2012
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bakteriofagi
chitozan
woda pitna
uzdatnianie wody
bacteriophages
chitosan
drinking water
water treatment
Opis:
Przeprowadzone badania właściwości bakteriofagów i chitozanu wskazują na możliwość ich zastosowania do uzdatniania wody pitnej, szczególnie pod względem mikrobiologicznym. Na wsiach polskich buduje się coraz więcej sieci wodociągowych o długościach dochodzących do kilkunastu kilometrów, co zwiększa możliwość skażenia wody doprowadzanej do gospodarstw na skutek awarii lub osadzania się bakterii na ściankach rurociągów. Wobec powyższego konieczne jest opracowanie nowych, tanich i skutecznych technologii uzdatniania wody, przede wszystkim pod względem bakteriologicznym. W Laboratorium Bakteriofagowego Instytutu Immunologii i Terapii Doświadczalnej PAN, w Instytucie Technologiczno-Przyrodniczym (Oddział w Warszawie), na Politechnice Śląskiej oraz w innych ośrodkach naukowych podjęto prace w celu przebadania i wdrożenia układów fagowo-chitozanowych, skutecznie oczyszczających wodę ze skażeń bakteryjnych i chemiczno-fizycznych. Celem pracy jest przeprowadzenie analizy, czy badana technologia może mieć zastosowanie do uzdatniania wody zarówno dla ludzi, jak i dla zwierząt.
The results of recent studies on characteristics of bacteriophages and chitosan indicate their utility to purification of drinking water, especially in microbiological aspect. Actually, in the country regions of Poland there are built many water-pipe networks of the length up to several kilometers. Such a distance increases contamination risk for the water supplied to farms, as resulted from piping failures, cracking the pipes or settling bacteria on the pipe walls. In such a situation it is necessary to elaborate new, inexpensive and effective technnologies of water treatment, first of all in bacteriological way. In the Bacteriophage Laboratory of Immunology and Experimental Therapy Institute, Polish Academy of Sciences, in the Institute of Technology and Life Sciences (Branch in Warsaw), as well as in Silesian Technological University and some other research centres, the studies have been undertaken in order to investigate and implement the bacteriophage - chitosan system for effective biological treatment and chemical purification of drinking water. The aim of research is to analyse, whether the investigated technology may be applied to treatment of water supplied for both, human and animal consumption.
Źródło:
Problemy Inżynierii Rolniczej; 2012, R. 20, nr 1, 1; 105-113
1231-0093
Pojawia się w:
Problemy Inżynierii Rolniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atomic forms of selenium in selected mineral and well water in Poland
Formy selenu w mineralnych i pitnych wodach w Polsce
Autorzy:
Gawloska-Kamocka, A.
Powiązania:
https://bibliotekanauki.pl/articles/873337.pdf
Data publikacji:
2009
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
atomic form
selenium
mineral water
drinking water
food analysis
speciation analysis
Polska
Opis:
The study aimed at application of a high performance liquid chromatography (HPLC) with UV detector for selenium speciation in samples of mineral and well waters in Poland. Basic solutions 1000 μg/l SeO3 2- and SeO4 2- were prepared by dissolving 2.190 g of reagent Na2SeO3 and 2.393 g Na2SeO4 in 1000 ml of deionised water, respectively. Recent standards SeO3 2- and SeO4 2- (single or mixed) were prepared daily. Chromatographic separations were obtained on a column with reversed phase of C18, 250*4 mm, 5 μm ODS. As mobile phase mixture of 5 mmol/l phosphate tetrabutylammonium, 50/50 water/methanol at pH 3.4 was used. Flow rate of mobile phase was1 ml/min and detector was set on λ=210 nm. Injection volumes were 5 μl. The average concentration of Se(IV) was 4.10 μg/l and Se(VI) - 4.27 μg/l and Se(II) - 0.54 μg/l although the differences between water samples originating from various sources were relatively high. The developed method can be therefore recommended for determination of Se in samples of mineral water.
Celem pracy było wykorzystanie metody HPLC do badania specjacji selenu w mineralnych i pitnych wodach. Roztwory podstawowe Na2SeO3 i Na2SeO4 o stężeniu 1000 μg/l przygotowano przez rozpuszczenie 2,190 g Na2SeO3 i 2,393 g Na2SeO4 w 1000 ml wody dejonizowanej. Świeże standardy SeO3 2- i SeO4 2- (pojedyncze lub mieszane) były przygotowane codziennie, z roztworów podstawowych. Rozdziały chromatograficzne uzyskano na kolumnie z fazą odwróconą C18, 250*4 mm, 5 μm ODS. Fazą ruchomą była mieszanina 5 mmol/l fosforanu tetrabutyloamoniowego, 50/50 woda/metanol o pH 3,4. Szybkość przepływu fazy ruchomej wynosiła 1ml/min. W badaniach stosowano detekcję przy długości fali λ=210 nm. Objętość badanych próbek wynosiła 5 μl. Wszystkie warunki pomiarów uprzednio zoptymalizowano. Średnia zawartość Se(IV) w badanych wodach wynosiła 4,10 μg/l, a Se(VI) 4,27 μg/l i Se(II) 0,54 μg/l, chociaż obserwowano znaczne różnice w zależności od pochodzenia próbki. Opracowana metoda RP-HPLC-UV może być wykorzystana do badania specjacji selenu w próbkach wody mineralnej.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2009, 60, 1
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Study of Adsorption Ability of Natural Materials of the Tyumen Region
Autorzy:
Pimneva, L.
Zagorskaya, A.
Powiązania:
https://bibliotekanauki.pl/articles/123127.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
natural sorbent
copper ions
adsorption isotherms
water supply system
drinking water quality
Opis:
The sorption of divalent copper, natural sorbents of kaolinite and montmorillonite clays and carbon sorbent was studied on model solutions under static conditions. Quantitative characteristics of sorption process of copper ions were obtained. The degree of extraction of copper ions from solution was investigated, depending on the concentration of the initial solution and the weight ratio of the sorbent and volume of treated solution. The magnitude of sorption increases along with the increase in the volume of copper sulfate solution with a concentration of 0.02 M at a constant sample of sorbents. A higher carbon sorption capacity of the sorbent, in relation to ions of copper, was compared to kaolinite and montmorillonite clay. A higher sorption capacity of the carbon sorbent with respect to copper ions is established in the comparison with kaolinite and montmorillonite clay.
Źródło:
Journal of Ecological Engineering; 2018, 19, 3; 225-228
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anthropogenic impacts on environment and quality of water supply
Wpływ czynników antropogenicznych na środowisko i jakość wody
Autorzy:
Kris, J.
Galik, M.
Nemes, P.
Powiązania:
https://bibliotekanauki.pl/articles/318349.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
anthropogenic activity
drinking water quality
drinking water supply
decrease in water consumption
environment
działalność ludzka
jakość wody pitnej
zaopatrzenie w wodę pitną
spadek spożycia wody
środowisko
Opis:
Water in the nature is not distributed in sufficient quality and quantity in time and space to meet water demands in line with the requirements for safe drinking water. In the past, water was free for all and one could use it without any restrictions for his needs. Drinking water consumption increases due to the impact of demographic trends and the level of water supply as well as technological and industrial development. Meeting the demands is more difficult because of limited possibilities of increasing food production due to pollution and increasing demands for use of natural resources.
Woda w przyrodzie nie jest rozprowadzania w odpowiedniej jakości i ilości w czasie i przestrzeni, aby sprostać wymogom bezpieczeństwa wobec niej. W przeszłości woda była darmowa dla wszystkich i każdy mógł używać jej bez jakichkolwiek ograniczeń. Konsumpcja wody pitnej wzrosła ze względu na wpływ tendencji demograficznych oraz poziomu jej zaopatrzenia jak również ze względu na rozwój przemysłu. Sprostanie wymaganiom jest trudniejsze, ponieważ ograniczone są możliwości zwiększenia produkcji jedzenia przez zanieczyszczenia oraz zwiększenia wymagań wobec użycia źródeł naturalnych.
Źródło:
Inżynieria Mineralna; 2013, R. 14, nr 2, 2; 79-84
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pesticide content in drinking water samples collected from orchard areas in Central Poland
Autorzy:
Badach, H
Nazimek, T.
Kaminska, I.A.
Powiązania:
https://bibliotekanauki.pl/articles/49366.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
orchard area
water quality
Polska
pesticide content
drinking water
herbicide content
water sample
Opis:
Samples of drinking water collected in Warka-Grójec region of central Poland were tested for the presence of pesticides. Data obtained from analysis of water samples will be used for future epidemiological and environmental studies in the region. Samples were collected during spring and autumn of 2002-2003 from dug wells, deep wells and water mains in 81 randomly-selected rural households scattered throughout this region of extensive agriculture. The concentration of pesticides from four main chemical groups was determined by gas chromatography: organochlorines (lindane, DDT, methoxychlor), triazines (atrazine, simazine), organophosphates (acephate, diazinon, fenitrothion) and pyrethroids (alpha-cypermethrin, deltamethrin). Two-year monitoring of drinking water samples indicated the presence of DDT and methoxychlor contamination. Pyrethroids were generally not detected, with the exception of alpha-cypermethrin found in only a few samples. Triazines were also found in water samples collected in the course of the study with higher incidence during spring period. Organophosphates were by far the most common contaminants of drinking water in this region. Almost all samples were contaminated by signifi cant amounts of fenitrothion. The present study reveals an urgent need for systematic monitoring of drinking water quality in regions of intensive agriculture, since they are highly vulnerable to pesticide contamination. Consumption of pesticide-contaminated water may have a negative impact on the population living in this area, which also requires scientifi c assessment.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human-Rights Approach to Water in the European Union on the 10th Anniversary of the ‘Right2Water’ Initiative
Autorzy:
Hałub-Kowalczyk, Olga
Powiązania:
https://bibliotekanauki.pl/articles/15846637.pdf
Data publikacji:
2023-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
access to water
right to water
Right2Water
Drinking Water Directive
Concession Directive
Opis:
The 20 principles of the European Pillar of Social Rights adopted by the EU in 2017 include the right to access such basic services as water, sanitation, energy or transport. In the face of the climate crisis, the first of these rights is becoming a service which, due to the progression of global warming, could lose its universal and easily accessible nature. It seems reasonable to ask about the chances of developing a ‘right to water’ within the framework of the EU’s system, which would unambiguously oblige the public authorities to ensure access to this right. The trigger for this research was the ‘Right2Water’ European citizens’ initiative addressed to the European Commission in 2013, which contained postulates to recognise access to water as a human right. Ten years after the launch of this procedure, it is reasonable to acknowledge the verification of the actions taken by the EU and whether the evolving EU water policy can be assessed as being oriented towards ensuring the right to water for all EU-inhabitants. The aim of this paper justifies the use of legal-dogmatic research methodology. Regarding the analysis of legal acts, the rules of legal hermeneutics were applied, esp. grammar and teleological interpretation.
Źródło:
Polish Political Science Yearbook; 2023, 2(52); 71-81
0208-7375
Pojawia się w:
Polish Political Science Yearbook
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Study of Iron Removal from Groundwater Using Low Cost Adsorbents
Autorzy:
Raheem, Shahad A.
Kadhim, Entidhar Jawad
Abdulhasan, Maryam Jawad
Powiązania:
https://bibliotekanauki.pl/articles/2202201.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater contamination
iron removal
adsorption
filtration
drinking water
sawdust
barley husk
Opis:
Iron is one of the groundwater contaminants that negatively impact health and the environment. This study is attempted at introducing low cost natural adsorbent for that adsorbs iron from synthetically prepared iron water. Sawdust and barley husks were used as a filter media, either alone or at different mixing ratio of sawdust/barley husks (1:1, 0.5:1, 1:0.5), to study the effect of adsorbent dose on the removal efficiency. Synthetic water of iron was used at different initial concentrations (10, 25, 40, 65, and 80) mg/L to study the effect of initial iron concentration on the removal efficiency. The filtration process was conducted at a surface loading rate of 3 m3/m2.hr. The results showed higher removal efficiency with the increase of iron initial concentration. The results indicated that removal of iron ranged (90–99.34%) for all types of filter media. The best removal was found to be 99.34% at a mixing ratio of 0.5:1 (sawdust/barley husks) at 80 mg/L initial concentration. As a conclusion, Removal of iron was very successfully observed with absorbent materials sawdust and barley husk, which makes the treatment of iron even possible in rural areas and when high concentration of iron is present.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 18--23
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CURRENT STATUS OF DRINKING WATER SOURCES IN THE WORLD
AKTUALNY STAN ŹRÓDEŁ WODY PITNEJ NA ŚWIECIE
Autorzy:
Čajka, Peter
Swiatlowski, Tomáš
Powiązania:
https://bibliotekanauki.pl/articles/550919.pdf
Data publikacji:
2018
Wydawca:
Wyższa Szkoła Biznesu i Przedsiębiorczości w Ostrowcu Świętokrzyskim
Tematy:
water resources
drinking water
renewable water resource
źródła wody
woda pitna
odnawialne źródła wody
Opis:
Questions regarding the water have a specific position in the context of environ-mental challenges. The possibility of escalating tensions between individuals, social groups, states or groups of states may even be higher for water-related issues than with other environmental problems. According to many pessimistic forecasts in the course of the 21st century water conflicts occur, which can have tragic consequences. Even though such conflicts have not yet reached a significant regional or global dimension, the risk of such a conflict cannot be ruled out. The aim of the research is to identify other potential risk areas where the water situation will most likely worsen, which may result in a threat of violence, conflict. At the same time, we were comparing the state of renewable water resources in individual countries of the world.
Pytania dotyczące wody mają szczególne znaczenie w kontekście wyzwań środowiskowych. Możliwość eskalacji na-pięć między jednostkami, grupami społecz-nymi, państwami lub grupami państw może być nawet większa w przypadku problemów związanych z wodą niż w przypadku innych problemów środowiskowych. Zgodnie z wieloma pesymistycznymi prognozami w ciągu XXI wieku dochodzi do konfliktów wodnych, które mogą mieć tragiczne konsekwencje. Mimo że takie konflikty nie osiągnęły jeszcze znaczącego wymiaru regionalnego ani globalnego, nie można wykluczyć ryzyka takiego konfliktu. Celem badań jest zidentyfikowanie innych potencjalnych obszarów ryzyka, w których sytuacja wody najprawdopodobniej się pogorszy, co może skutkować groźbą przemocy, konfliktami. W tym samym czasie porównaliśmy stan odnawialnych zasobów wodnych w poszczególnych krajach świata.
Źródło:
Acta Scientifica Academiae Ostroviensis. Sectio A, Nauki Humanistyczne, Społeczne i Techniczne; 2018, 12(2)/2018; 244-274
2300-1739
Pojawia się w:
Acta Scientifica Academiae Ostroviensis. Sectio A, Nauki Humanistyczne, Społeczne i Techniczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the content of microplastics and other extraneous particles in Polish bottled water
Autorzy:
Aleksander-Kwaterczak, Urszula
Gaj, Dominika
Stelmach, Alex
Wróbel, Tomasz P.
Powiązania:
https://bibliotekanauki.pl/articles/27310134.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
plastic bottles
drinking water
solid particles
polymers
microplastics
FT-IR spectroscopy
Opis:
Bottled water has enjoyed a global increase in popularity since it is generally perceived to be superior in quality to tap water and necessary when tap water is non-potable. As a result, ensuring that it meets the requisite quality standards is of vital importance. This work aims to examine the content of solid particles, including microplastics, in bottled water available in Polish stores. The second aspect is the preliminary determination of the influence of the water gassing process, together with thermal and light factors, on the content of particles in the water. The number of particles was counted by colour and shape, with the number ranging from 87 to 188 per litre of water; on average, there were 136 ±32 particles per litre of water, demonstrating that water from disposable plastic bottles is contaminated with various substances. The difference in the number of particles may be due to the origin of the waters, the processes they were subjected to prior to bottling, the properties of the bottles as packaging, and the conditions and length of storage and transport. Additional Fourier-transform infrared spectroscopy (FT-IR) analysis confirmed that about 75% of the particles were polymers, and 50% of them were plastics. Particularly alarming is the fact that the bottled waters mostly contained microplastic particles (MP) of smaller sizes, the kind which is recognized as being the most dangerous to human health. In the study, most particles were in the form of irregular shapes, which may indicate that they come from the destruction of waste or plastic products. This is also indicated by the domination of colourless particles. More particles were found in waters exposed to high and low temperatures than in waters stored at room temperature, potentially indicating that storage conditions for drinking water are important. Taking into account the results obtained, increasing attention should be paid to the health risks posed by such microplastics and there is a clear need to introduce legal regulations on the matter. The lack of any legal guidelines or unified standards in the field of MP research means that the results are not always representative, and it also makes it difficult to compare the results from different studies.
Źródło:
Geology, Geophysics and Environment; 2023, 49, 4; 335--353
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermodynamic Analysis and Mathematic Modeling of Waste Sludge from Drinking Water Treatment Plants
Autorzy:
Azeddine, Fantasse
El Khadir, Lakhal
Ali, Idlimam
Powiązania:
https://bibliotekanauki.pl/articles/2026746.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water sludge
sludge valorization
wastewater management
thermodynamic analysis
isosteric heat
Opis:
Water treatment annually produces a huge amount of Drinking Water Treatment Sludge (DWTS) wastes. The latter causes environmental problems in Morocco in terms of energy and pollution. Therefore, cost-effective and eco-friendly solutions for managing them should be proposed in order to reduce the frequency of storage along with transportation costs. In this paper, a thermodynamic analysis of DWTS wastes was conducted based on the isosteric heat and compensation theory. Different results concerning the mineralogical identification of sludges were established. Findings revealed that the by-product of water purification was mainly composed of aluminum, silica and iron hydroxides, with pH varying between 6.23 and 6.85. The suspended matter was between 18.3 and 19.6 m/l. The volatile matter of the three sludge samples was between 18 and 21%. The measured dry matter content was between 13.41 and 15.23%. The experimental tests were performed under temperatures from 45 and 60 °C, the experimental data of the sorption curves were fitted by using several models of correlation. Furthermore, the analysis showed that the Peleg’s model perfectly described the isotherm curves in the activities ranging from 0 to 90%. The net isosteric heats of sorption of the three hydroxide sludge from the Moroccan treatment station: $S_k$, $S_m$ and $S_s$, were determined for desorption and adsorption. Moreover, it was revealed that the equilibrium water content rising lead contributed to the reduction of the net isosteric heat and the entropy of sorption. Finally, the enthalpy-entropy compensation showed that the sorption mechanism involved was enthalpy driven.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 140-149
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania fizyczno-chemiczne wód mineralnych Krynicy-Zdrój. Cz. 1: Badania fizyczne
Autorzy:
Bodora, S.
Powiązania:
https://bibliotekanauki.pl/articles/274540.pdf
Data publikacji:
2011
Wydawca:
Roble
Tematy:
woda mineralna
woda pitna
wody podziemne
Krynica-Zdrój
mineral water
drinking water
groundwater
Źródło:
LAB Laboratoria, Aparatura, Badania; 2011, 16, 5; 36-40
1427-5619
Pojawia się w:
LAB Laboratoria, Aparatura, Badania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania fizyczno-chemiczne wód mineralnych Krynicy-Zdrój. Cz. 2: Badania chemiczne
Autorzy:
Bodora, S.
Powiązania:
https://bibliotekanauki.pl/articles/274072.pdf
Data publikacji:
2011
Wydawca:
Roble
Tematy:
woda mineralna
woda pitna
wody podziemne
Krynica-Zdrój
mineral water
drinking water
groundwater
Źródło:
LAB Laboratoria, Aparatura, Badania; 2011, 16, 6; 28-30
1427-5619
Pojawia się w:
LAB Laboratoria, Aparatura, Badania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elimination of microbes from different drinking water sources of Visakhapatnam using potassium permanganate: dose based disinfection approach
Autorzy:
Dadhich, A.S.
Khan, H.R.
Powiązania:
https://bibliotekanauki.pl/articles/11840.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
elimination
microbe
drinking water
water source
Visakhapatnam area
potassium permanganate
disinfection
sanitation
microbial quality
Opis:
Potassium permaganate has been used since ages for disinfection of water. It is known for oxidation of cell membrane of micro organisms. But the pink colour prevailing after use makes people reject the water on aesthetic grounds. Water samples from bore wells and tap water from public places were collected from different areas of Visakhapatnam. Physio-chemical and microbial analysis analyses of the water samples were carried out. A dose based permaganate treatment of water depending upon number of colony forming units and species of microorganism present in the water was carried out [1,2,5].
Źródło:
International Letters of Natural Sciences; 2014, 11, 1
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement of Radioactive Radon Gas Concentrations of Water in the schools for Kifel
Autorzy:
Hatif, Khalid Hussain
Muttaleb, Mohsin Kadhim
Abass, Alyaa Hofdi
Powiązania:
https://bibliotekanauki.pl/articles/1191244.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Radioactive
Drinking water
RAD7
Radon in Water
Schools
Human life
Annual Effective Dose
Opis:
Radon chemical element for which an inert gas is colorless, odorless and tasteless, it is also radioactive elements, Radon is chemically inert and non-flammable and very poisonous and carcinogen by inhalation. The aim of this project is Knowledge of radon concentration level and the annual effective dose in drinking water in Babylon Governorate. Current work presents the results of the radioactive gas radon in samples of drinking water in the schools of AL-Kifel in Babylon Governorate Was chosen as the water from 16 schools by using the electronic radon detector RAD H2O, where the highest value (1.15) Bq•L-1 and the lowest value (0.0362) Bq•L-1 and effective dose for, human exposure to radon rate from (0.158556) mSv•y-1 to (5.037) mSv•y-1. At last may be concluded, the results of radon concentrations and annual effective dose in all samples show no significant radiological risk for the inhabitants in the reign study.
Źródło:
World Scientific News; 2016, 54; 191-201
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł

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