Temat: Water Quality - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

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

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Skocz do pozycji: 5.

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

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Skocz do pozycji: 6.

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

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Skocz do pozycji: 7.

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

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Skocz do pozycji: 8.

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

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Skocz do pozycji: 9.

Tytuł:: Drinking water quality in the aspect of the presence of potentially toxic trace elements
Jakość wody pitnej w aspekcie obecności potencjalnie toksycznych pierwiastków śladowych
Autorzy:: Cybulski, J.
Pokorska-Niewiada, K.
Witczak, A.
Powiązania:: https://bibliotekanauki.pl/articles/13925558.pdf
Data publikacji:: 2019
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: drinking water
surface water
ground water
water quality
trace element
cadmium
lead
mercury
arsenic
safety
consumer
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 2019, 598; 15-27
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Quality of drinking water from the agricultural area treated with pitcher water filters
Autorzy:: Krolak, E.
Raczuk, J.
Sakowicz, D.
Biardzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/873567.pdf
Data publikacji:: 2018
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:: drinking water
water quality
agricultural area
water treatment
water filtration
calcium
magnesium
nitrate
phosphate
chloride
acidity
Opis:: Background. Home methods of drinking water treatment through filtration have recently become quite popular. Objective. The aim of the study was to compare chemical composition of unfiltered water with water filtered in households with pitcher water filters. Obtained results were discussed in view of the effect of analysed chemical components of water on human health. Material and methods. Water samples were taken from water works supplies and from home dug wells from the agricultural area. Unfiltered water and water filtered through filters filled with active carbon and ion-exchanging resin and placed in a pitcher were analysed. Electrolytic conductivity, pH, hardness and the concentrations of calcium, magnesium, nitrate, phosphate and chloride ions were determined in water samples. Results of analyses were statistically processed. Results. As a result of water filtration, the concentration of phosphates significantly increased and the concentrations of calcium, magnesium, electrolytic conductivity and pH decreased. No changes were noted in the concentration of chloride ions. Filtering water decreased the concentration of nitrates in dug wells samples. Conclusions. Using water purification devices is justified in the case of water originating from home dug wells contaminated with nitrates when, at the same time, consumers’ diet is supplemented with calcium and magnesium. Filtration of water from water works supplies, controlled by sanitary inspection seems aimless.
Wprowadzenie. Sposoby uzdatniania wody pitnej w gospodarstwie domowym przez filtrację stały się ostatnio bardzo popularne. Cel. Celem badań było porównanie składu chemicznego wody niefiltrowanej z wodą filtrowaną w gospodarstwach domowych za pomocą filtrów dzbankowych. Wyniki badań zostały omówione w aspekcie wpływu analizowanych składników chemicznych wody na zdrowie człowieka. Materiał i metody. Próbki wody pobierano z ujęć wodociągowych oraz ze studni kopanych na terenach rolniczych. Analizowano próbki wody niefiltrowanej i filtrowanej za pomocą filtrów dzbankowych, wypełnionych węglem aktywnym i żywicą jonowymienną. W próbkach wody oznaczano: przewodność elektrolityczną, pH, twardość i stężenie jonów wapnia, magnezu, azotanów, fosforanów oraz chlorków. Wyniki analizy opracowano statystycznie. Wyniki. W wyniku filtrowania wody odnotowano znaczący wzrost stężenia fosforanów oraz obniżenie stężenia wapnia, magnezu, przewodnictwa elektrolitycznego i pH. Nie stwierdzono zmian w stężeniu jonów chlorkowych. W próbkach wody filtrowanej pochodzącej ze studni kopanych stwierdzono zmniejszenie stężenia azotanów w porównaniu z próbkami wody niefiltrowanej. Wnioski. Wykorzystanie urządzeń do filtrowania wody jest uzasadnione w przypadku wody zanieczyszczonej azotanami, pochodzącej z studni kopanych, przy jednoczesnym uzupełnianiu diety konsumentów wapniem i magnezem. Filtracja wody z ujęć wodociągowych, kontrolowanych przez inspekcję sanitarną wydaje się bezcelowa.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2018, 69, 1
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Main issues concerning drinking water supply in the Angara river watershed
Autorzy:: Rush, Elena
Powiązania:: https://bibliotekanauki.pl/articles/471585.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:: Angara
wody
zasoby wodne
jakość wody
woda pitna
Angara river
water
water resources
water quality
drinking water
Opis:: Main issues concerning drinking water supply in the Angara River watershed. Water supply for drinking and communal-general purposes plays an important role in every economy all over the world as water is not only widely used for people’s everyday purposes, but is also essential for people’s vital functions. The principle concerning the priorities of supplying drinking and communal water, stipulated in relevant norms and regulations, presumes that in the first place people should be provided with water according to the existing scientifically grounded health standards. At the same time, drinking water is only a part of natural water resources; thus, it is closely linked to the whole hydro-economic situation of the region, and the connection is one of interrelation and interdependence. The territory under consideration stretches from the source of the Angara River downwards to the city of Bratsk and constitutes the upper and middle sections of the river. The following features are typical of this territory: high level of urban development, high level of anthropogenic pressure on water resources, wide scope of water quality and quantity conditions; all of the above result in a difference in drinking water provision between the regions and communities.
Źródło:: Annales Universitatis Paedagogicae Cracoviensis Studia Geographica; 2012, 3 Innowacyjność usług turystycznych w układach przestrzennych; 109-115
2084-5456
Pojawia się w:: Annales Universitatis Paedagogicae Cracoviensis Studia Geographica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Effect of Different Disinfection Methods on Quality of Tap Water
Wpływ różnych metod dezynfekcji na jakość wody wodociągowej
Autorzy:: Jachimowski, Artur
Powiązania:: https://bibliotekanauki.pl/articles/385394.pdf
Data publikacji:: 2019
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: dezynfekcja wody
jakość wody
woda pitna
sieć wodociągowa
water disinfection
water quality
drinking water
water supply network
Opis:: W artykule określono wpływ stosowania silnych utleniaczy w technologii uzdatniania wody na powstawanie ubocznych produktów dezynfekcji. Przedmiotem badań były wody pobierane z czterech zakładów uzdatniania wody Miejskiego Przedsiębiorstwa Wodociągów i Kanalizacji w Krakowie oraz z wybranych punktów sieci wodociągowej. Analizie poddano wybrane wskaźniki jakości wody (chlor wolny, sumę chloranów(III) i chloranów(V) oraz sumę trihalometanów) po procesie uzdatniania w latach 2011–2017. Z przeprowadzonych badań wynika, że stężenie chloru wolnego w sieci wodociągowej malało w miarę wzrostu odległości od zakładu uzdatniania. Zależność tę stwierdzono w 19 z 28 punktów poboru wody. Analizując średnioroczne stężenia chloru wolnego w wodzie wodociągowej, zauważono, że najwyższe wartości w badanych punktach występowały w 2011 r. W pozostałych latach obserwowano spadek tego wskaźnika. Z przeprowadzonej analizy wynika, że produkty uboczne dezynfekcji wody nie przekraczały dopuszczalnych norm.
This paper specifies the effect of using strong oxidants in water treatment technologies on the formation of disinfection by-products. The study was developed by collecting water samples from four water treatment plants of the Municipal Water and Sewerage Company (MPWiK) in Krakow and at selected sampling points within the water supply networks. The analysis was comprised of selected indicators of water quality after the treatment process during the years of 2011–2017. From the carried-out investigation, it was concluded that the concentration of free chlorine in the water supply network concurrently decreased with increases in the distance from the treatment plant. This dependence was found in 19 out of 28 water supply points. While analyzing the annual average concentrations of free chlorine in the municipal water, it was noted that the highest values at the study points occurred in 2011. During the other years, decreases in this indicator were observed. This follows from the analysis that the water disinfection by-products did not exceed permissible limits.
Źródło:: Geomatics and Environmental Engineering; 2019, 13, 3; 47-57
1898-1135
Pojawia się w:: Geomatics and Environmental Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Bacteriological Quality Status of Spring Waters from the Taanzoult Plain (Aguelmam Sidi Ali Wetland, Morocco)
Autorzy:: Sammoudi, Rachid
Chahlaoui, Abdelkader
Ouarrak, Khadija
Taha, Imane
Khaffou, Mhamed
Powiązania:: https://bibliotekanauki.pl/articles/24201718.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bacteriology
spring water
drinking water
livestock watering
water quality
Taanzoult plain
Aguelmam Sidi Ali wetland
Morocco
Opis:: The Taanzoult plain of Aguelmam Sidi Ali wetland contains several permanent springs of water. They are intended for watering livestock, supplying drinking water and hydrotherapy. Nevertheless, the water consumption from sources in the raw state, without any pre-treatment or hygienic measures, certainly threatens the health of humans and particularly that of traditional medicine patients. From this perspective, the present work is based on a monthly monitoring of eight bacterial germs in the waters of four sources (Aghbalou Aberchane, Aghbalou Dkhiss, Aghbalou Akjdate and forestry post) during a hydrobiological cycle of 12 months from January to December 2017. The results of analyses have shown that bacterial contamination is significant at the water sources, used mainly for watering livestock, compared to those dedicated to drinking and hydrotherapy. The mean content of total coliforms and fecal coliforms at all the stations are higher than the Moroccan standards for surface water intended for the drinking water production. Except for the wet period for Aghbalou Aberchane and Aghbalou Dkhiss waters, the value of the bacterial parameters studied are higher than the Moroccan standards. In general, the anarchic frequentation of the area negatively influences the water quality and compromises its potability. Consequently, it directly threatens the health of users and hydrotherapy patients, especially during the dry season. These findings could call on the health authorities and the competent authorities responsible for controlling the quality of surface water to make users aware of the health risks and provide for appropriate arrangements to improve the quality of the widely sought-after natural waters.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 184--191
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Zmiany absorbancji w nadfiolecie (UV254) w wodzie w procesach uzdatniania
Autorzy:: Nowacka, A.
Włodarczyk-Makuła, M.
Powiązania:: https://bibliotekanauki.pl/articles/274170.pdf
Data publikacji:: 2012
Wydawca:: Roble
Tematy:: woda pitna
jakość wody
uzdatnianie wody
absorbancja w nadfiolecie
drinking water
water quality
water treatment
UV absorbance
Opis:: W pracy przedstawiono wyniki analiz jednego ze wskaźników jakości wody jakim jest absorbancja w nadfiolecie (UV254). Próbki wody pobrano po poszczególnych etapach uzdatniania wody do spożycia przez ludzi w wybranym zakładzie. Średnia wartość absorbancji (UV 1m 254nm) w wodzie surowej wynosiła 11,1. Podczas uzdatniania nastąpiło obniżenie wartości początkowej o 70%, co świadczy o wysokiej skuteczności prowadzonych procesów. Po procesie ozonowania wstępnego i koagulacji objętościowej odnotowano spadek zawartości substancji organicznych wyrażanych badanym wskaźnikiem o 54%, a po ozonowaniu wstępnym i koagulacji kontaktowej - o 56% w stosunku do wartości początkowej oznaczonej dla wody surowej. Zarówno w procesie ozonowania pośredniego i filtracji na węglu aktywnym obniżenie wartości absorbancji w nadfiolecie sięgało 20%.
Źródło:: LAB Laboratoria, Aparatura, Badania; 2012, 17, 1; 28-31
1427-5619
Pojawia się w:: LAB Laboratoria, Aparatura, Badania
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Wpływ eksploatacji złóż gazu łupkowego na wody ujmowane do celów pitnych. Przypadek Lubelszczyzny
Impact of Shale Gas Exploitation on the Drinking Water Reservoirs. Case of Lublin Region
Autorzy:: Cel, W.
Kujawska, J.
Czechowska-Kosacka, A.
Powiązania:: https://bibliotekanauki.pl/articles/1818565.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: gaz z łupków
woda pitna
jakość wody
szczelinowanie hydrauliczne
shale gas
drinking water
water quality
hydraulic fracturing
Opis:: The energy supply which would not contribute to climate change is biggest challenge facing modern civilization Bottom line is that the supply of energy is essential for the development of human civilization. In the very near future, shale gas may constitute an important source of energy. Poland has significant shale gas deposits. Polish Geological Institute estimated its amount at around 346–768 billion cubic meters. However, exploration works meets with large protests of residents, who are afraid of the contamination of drinking water. Considering the number of protests, it seems reasonable to undertake research on the development of water quality monitoring system in the shale gas exploitation site. The basic rule of this monitoring is to determine what chemicals are introduced into wells. The next step is to select water intakes located nearby. This paper presents and evaluates the quality of water taking into account inorganic compounds added to drilling fluids and fracturing fluids. The study contains the results on the content of trace metal ions, chlorides, nitrates, phosphates and sulphates. The study does not assess organic compounds content which can be added to the fluids in the process of hydraulic fracturing.
Źródło:: Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1224-1238
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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