Temat: Water - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Design of water supply networks for water transfer to the urban area Case study: Balikpapan city
Autorzy:: Huy, Dinh T.N.
Dwijendra, Ngakan K.A.
Poltarykhin, Andrey
Suksatan, Wanich
Nahi, Nooraldeen S.
Mahmudiono, Trias
Hai, Nguyen T.
Kadhim, Mustafa M.
Singh, Krishanveer
Ahmed, Alim A.A.
Powiązania:: https://bibliotekanauki.pl/articles/2174373.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: network design
water distribution
water shortage
water supply network
water transmission
Opis:: The growing population and the development of industries in all countries of the world have created a very important and complex issue for water supply to cities. Today, many parts of the world are facing the problem of water shortage and this problem cannot be easily solved. In addition to the proper use of water resources and preventing the loss of natural water, the establishment of regional water supply networks is effective in meeting the future needs of the people. A water distribution network (water supply network) is a set of interconnected pipelines used to transport and distribute water in a complex. In designing the water distribution network, factors such as the type of water distribution network, water pressure, water velocity, design flow, minimum pipe diameter, pipe material and many other factors should be considered. In this study, we have tried to design the water supply network of a part of Balikpapan city in Indonesia. The design method led to the determination of pressure values in the connection nodes, pipe diameters, flow rate and velocity in the pipes. All the existing criteria are considered in the design of the water supply network. Although this study has been implemented for a specific study area, it can be of great help to designers in designing the water supply network.
Źródło:: Journal of Water and Land Development; 2022, 54; 251--254
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:: Microorganisms’ communities from ballast water transferred into the Odra River estuary
Autorzy:: Zatoń-Sieczka, Kinga
Błaszak, Magdalena
Buśko, Marta
Czerniejewski, Przemysław
Powiązania:: https://bibliotekanauki.pl/articles/2174374.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: ballast water management
microorganisms
ship ballast water
water environment
water transport
Opis:: Ballast water is a significant vector for the transport and introduction of aquatic organisms, microorganisms and chemical pollutants which impacts on ecosystems worldwide. In the study, ballast water from short- and long- range vessels with treatment systems was microbiologically evaluated in spring (April 20th) and summer (July 19th) and compared with waters of the main Police Seaport in the Odra River Estuary, southern Baltic Sea. All collected samples were evaluated for their physicochemical properties by standard methods. The number of individual groups of microorganisms was determined using the indirect culture method, according to the technique of inoculation of serial dilutions of samples of the examined waters. The results showed differences in the microorganisms in analysed samples. The phylogenetic analysis of bacteria recorded from the ballast water of short-range ships in spring showed the presence of six species of the genus Bordetella, while in summer four species of the genus Clostridium. In the ballast water of long-range ships, proteolytic bacteria pre-dominated in spring and halophilic bacteria in summer. In the summer period, eight species of bacteria were recorded, of which six belonged to the genus Clostridium. The ballast water treatment processes used on ships influence the composition of bacterial communities through selective recolonisation of water, which may transform bacterial functions as an important element of the marine food web. On the other hand, the presence of pathogenic bacterial species in the tested samples indicates improvement necessity of ballast water treatment systems used on vessels.
Źródło:: Journal of Water and Land Development; 2022, 54; 48--58
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The water outflow from neighbouring mountain catchments in the Polish Carpathians : A comparative analysis
Autorzy:: Kowalczyk, Agnieszka W.
Jaguś, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/28411635.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: hydrological data
mountain catchment
water outflow
water resources
water run-off
Opis:: The study covered water resources of two mountain streams in the Polish Carpathians. These were the Biała Woda and Czarna Woda streams, the catchments of which are adjacent to each other. Water flows in both streams were measured during the hydrological years from 2006 to 2020. Next, water outflows from the catchments were calculated. The study aimed to determine differences in the water resources of those catchments in a very small mountainous area. The study showed quantitative similarity in water resources in the entire multi-annual period but at the same time large differences in shorter periods. Instantaneous and daily outflows showed the largest differences, but differences in annual outflows of up to 20% were also recorded. Therefore, hydrological data from operational cross-sections to assess water resources of neighbouring uncontrolled watercourses should cover multi-annual mean values. It was found that during periods of increased runoff (from melting snow or precipitation), the outflow from the Biała Woda catchment was much larger, while during rain-free periods, the outflow from the Czarna Woda catchment prevailed. All short-term flood like outflows were at least several tens of per cent higher in the Biała Woda catchment. The higher retention capacity of the Czarna Woda catchment can be attributed to the land use (mainly forest areas). The results can be used for modelling catchments of similar parameters and determining their retention capacity.
Źródło:: Journal of Water and Land Development; 2023, 58; 148--157
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

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: 5.

Tytuł:: Small water reservoirs - their function and construction
Małe zbiorniki wodne - ich funkcje i konstrukcje
Autorzy:: Mioduszewski, W.
Powiązania:: https://bibliotekanauki.pl/articles/292358.pdf
Data publikacji:: 2012
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: bilans wodny
jakość wody
mała retencja
zbiorniki wodne
small scale water retention
water balance
water quality
water reservoirs
Opis:: Small water reservoirs play important role in rural areas. They used to be very popular, but most of them have been devastated in the last century. It is worth to restore them and to construct new ones. Very small reservoirs (ponds) can be constructed in economical and cost efficient way by individual farmers. In regard to damming below 1.0 m and to reservoirs situated outside protected areas, the permission for construction and the environmental impact assessment is not required. However, one should always keep in mind that even the smallest construction is the work of engineering and should be performed in accordance with the current standards. The increase of available water resources and improvement of water quality demand various measures including those aimed at reducing and limiting water runoff and pollutants transport from the river basins. One of the methods to improve the structure of water balance and the amount of water in rivers is the construction of a large number of small reservoirs, wetland reconstruction etc. Such reservoirs may be divided to: recreational, floristic and faunistic conservation sites, swimming pools, water quality protection (constructed wetlands) and infiltration reservoirs. Reservoirs can have many functions of the economic and natural character. If they are designed and constructed properly they can be a valuable element of the natural landscape in rural areas. Basic data for designing of small reservoirs serving mainly recreational (decorative) purposes and those used for water treatment and ground water recharge are given in the paper.
Zmiany zagospodarowania i użytkowania zlewni, a także niektóre prace hydrotechniczne spowodowały przyspieszenie obiegu wody w przyrodzie, zanik wielu cennych przyrodniczo obszarów, zwiększenie zanieczyszczenia wód podziemnych i powierzchniowych. Konieczne jest więc podjęcie działań w celu zwiększenia pojemności retencyjnej zlewni. Jedną z metod zatrzymania wód opadowych i roztopowych w zlewni jest budowa wszelkiego typu zbiorników wodnych, zarówno gromadzących wodę na powierzchni terenu, jak i zasilających wody podziemne. Celem artykułu było, na podstawie dostępnej literatury i doświadczeń własnych, wykazanie roli małych zbiorników wodnych. Stanowią one cenny element zarówno w krajobrazie rolniczym, jak i zurbanizowanym. Przyczyniają się do poprawy struktury zasobów wodnych i zwiększają różnorodność biologiczną terenów wykorzystywanych przez człowieka, a jednocześnie mogą być wykorzystywane do celów gospodarczych. Ta duża różnorodność funkcji małych zbiorników powinna być możliwie często wykorzystywana. Celowe jest ustanowienie programów mających na celu pomoc finansową i merytoryczną dla osób podejmujących się budowy takich zbiorników.
Źródło:: Journal of Water and Land Development; 2012, no. 17 [VII-XII]; 45-52
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of the operational effectiveness and feasibility of small-scale water supply systems in the hinterlands in Ethiopia: Case of Afar Regional State
Autorzy:: Shumie, Melese C.
Powiązania:: https://bibliotekanauki.pl/articles/2174315.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: hand-dug wells
roof water harvesting
rural communities
water management
water supply
Opis:: Access to clean and sufficient drinking water is difficult in much of Ethiopia’s Afar Region. It is observed that many schemes in the region are non-functional. The study was conducted to overcome the observed problem in seven selected districts of the region. The study regarded hand-dug wells and roof water collection systems, which are the two most common features in the research areas. Eight hand-dug wells and sixteen roof water harvestings are purposively included in the study. All the water points are constructed by Kelem Ethiopia which is a non-governmental organisation and the foremost local organisation for the communities. As per the research survey, the average functional status of the hand-dug well schemes is 65.75% and the roof water harvesting schemes is 22.94%. The research was based on the qualitative data collected on site. The hand-dug well sites were evaluated using 10 parameters, and the roof water harvesting schemes were analysed using 12 parameters. The main non-functional aspects of the scheme are lack of community ownership, drying up of water sources, lack of maintenance and rehabilitation, poor coordination of beneficiaries and school roofs blowing off. Most schemes still require minor to major maintenance and rehabilitation. According to the research, the solutions for water supply are identified in relation to the desired objective.
Źródło:: Journal of Water and Land Development; 2022, 55; 220--228
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Impact of Kishnica mines on pollution of the Graçanka River and water wells nearby, Kosovo
Autorzy:: Kadriu, Sadija
Sadiku, Milaim
Kelmendi, Mensur
Aliu, Mehush
Mulliqi, Ismet
Hyseni, Arbër
Powiązania:: https://bibliotekanauki.pl/articles/1844372.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: mines
pollution
Graçanka River
water quality
water wells
Opis:: Mining is an important economic activity in Kosovo. Artana and Kishnica mines are a part of the Trepça industrial complex and the increased exploitation of deposits has resulted in undesirable impact on the environment around the mining sites. More specifically, the mining activity caused water pollution. The aim of the study was to assess the physico-chemical parameters and presence of heavy metals (Ni, Zn, As, Cd, Pb, Cr, Mn, Fe) in water samples of the Graçanka River and household wells in the area. The Inductively Coupled Plasma-Mass Spectrometer (ICP-MS) was used to determine metal concentrations. Samples were collected from five sites along the Graçanka River and from four private water wells during a period from September to November 2019. Concentrations of heavy metals in the Graçanka River were as follows Mn (24–1203 μg∙dm–3), Fe (11–785 μg∙dm–3), Ni (4–299 μg∙dm–3), Pb (2–22 μg∙dm–3), As (1–5 μg∙dm–3), Zn (344–1646 μg∙dm–3), Cr (1–2 μg∙dm–3) and Cd (<1 μg∙dm–3). The well waters were polluted by multiple metals (Mn > Fe > Ni > Pb) with concentrations of Mn 1834–36089 μg∙dm–3, Fe 158–3535 μg∙dm–3, Ni 82–1882 μg∙dm–3, Pb 5–45 μg∙dm–3, As 2–19 μg∙dm–3, Cd 1–12 μg∙dm–3, Zn 979–23474 μg∙dm–3 and Cr 1–2 μg∙dm–3. The pollution has been caused by industrial (mining-related) and urban discharges. The contamination originates from the release of flotation process waste and from the leaching of the tailings dam. Most probably, rainwater has washed contaminants into the aquifers and the Graçanka River. River water is not suitable for irrigation and well water is not suitable for consumption or irrigation. Wastewater should be treated before discharge and the tailings area should be remediated in order to stop the pollution.
Źródło:: Journal of Water and Land Development; 2021, 48; 16-21
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Water productivity under deficit irrigation using onion as indicator crop
Autorzy:: Tadesse, Kassahun B.
Hagos, Eyasu Y.
Tafesse, Nata T.
Dinka, Megersa O.
Powiązania:: https://bibliotekanauki.pl/articles/293258.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: drip irrigation
effective rainfall
real evapotranspiration
soil water
water quality
water use efficiency
Opis:: Improving water productivity (WP) through deficit irrigation is crucial in water-scarce areas. To practice deficit irrigation, the optimum level of water deficit that maximizes WP must be investigated. In this study, a field experiment was conducted to examine WP of the three treatments at available soil water depletion percentage (P_i) of 25% (reference), 45% and 65% using a drip irrigation system. Treatments were arranged in a randomized complete block design. The water deficit was allowed throughout the growth stages after transplanting except for the first 15 days of equal amounts of irrigations during the initial growth stage and 20 days enough spring season rainfall during bulb enlargement periods. Physical WP in terms of water use efficiency (WUEf) for treatments T1, T2, and T3 was 9.44 kg∙m^–3, 11 kg∙m^–3 and 10.6 kg∙m^–3 for marketable yields. The WUEf and economic water productivity were significantly improved by T2 and T3. The WUEf difference between T2 and T3 was insignificant. However, T2 can be selected as an optimal irrigation level. Hence, deficit irrigation scheduling is an important approach for maximizing WP in areas where water is the main constraint for crop production. The planting dates should be scheduled such that the peak water requirement periods coincide with the rainy system.
Źródło:: Journal of Water and Land Development; 2020, 45; 171-178
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Water resources of Kazakhstan in conditions of uncertainty
Autorzy:: Tursunova, Aisulu
Medeu, Akhmetkal
Alimkulov, Sayat
Saparova, Assel
Baspakova, Gaukhar
Powiązania:: https://bibliotekanauki.pl/articles/2174360.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: anthropogenic influence
river runoff
transboundary water problems
water resources
Opis:: The exceptionally high spatial-temporal variability of the river runoff and the significance of its transboundary component considerably worsen the problem of the water supply of the republic. Due to the disadvantageous geographical location in the lower reaches of transboundary river basins, the Republic of Kazakhstan is largely dependent on water economy activities taking place in neighbouring countries. In the article the modern change of the resources of river runoff in Kazakhstan, taking into account climatic and anthropogenic influences is considered. For the assessment of the impact of economic activities on the river runoff and changes in climatic-related runoff, the complex of integral methods was used, and appropriate methodologies were developed. The obtained results of the modern influence of a complex of factors, as well as their significance for the future (till 2030), can be used for the development of scientifically based solutions for sustainable management and protection of water resources. An assessment of the anthropogenic activity of this study shows that the water resources of the river runoff of the Republic of Kazakhstan have decreased by 16.0 km3∙y-1. According to our forecasts, there will be a further decrease in the water resources of the republic due to the expected decrease in transboundary flow to 87.1 km3∙y-1 by 2030, in dry years less than 50.0 km3∙y-1. We propose a set of measures to prevent the negative impact of possible reduction of river runoff resources in the future in the water basins of Kazakhstan.
Źródło:: Journal of Water and Land Development; 2022, 54; 138--149
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Investigation and calibration of thermal and salinity layering in surface water resources using Ce-Qual-W2 model
Autorzy:: Chen, Tzu-Chia
Yu, Shu-Yan
Wang, Chang-Ming
Xie, Sen
Barazandeh, Hanif
Powiązania:: https://bibliotekanauki.pl/articles/2048504.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Ce-Qual-W2 model
salinity
surface water
thermal layering
water quality modelling
water resources
Opis:: In the discussion of water quality control, the first and most effective parameter that affects other variables and water quality parameters is the temperature situation and water temperature parameters that control many ecological and chemical processes in reservoirs. Additionally, one of the most important quality parameters studied in the quality of water resources of dams and reservoirs is the study of water quality in terms of salinity. The salinity of the reservoirs is primarily due to the rivers leading into them. The control of error in the reservoirs is always considered because the outlet water of the reservoirs, depending on the type of consumption, should always be standard in terms of salinity. Therefore, in this study, using the available statistics, the Ce-Qual-W2 two-dimensional model was used to simulate the heat and salinity layering of the Latyan Dam reservoir. The results showed that with warming and shifting from spring to late summer, the slope of temperature changes at depth increases and thermal layering intensifies, and a severe temperature difference occurs at depth. The results of sensitivity analysis also showed that by decreasing the wind shear coefficient (WSC), the reservoir water temperature increases, so that by increasing or decreasing the value of this coefficient by 0.4, the average water temperature by 0.56°C changes inversely, and the results also show that by increasing or decreasing the value of the shade coefficient by 0.85, the average water temperature changes by about 7.62°C, directly.
Źródło:: Journal of Water and Land Development; 2021, 51; 117-123
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Dendrometric evaluation of Helianthus annuus under water deficit conditions
Autorzy:: Obročník, Oliver
Bárek, Viliam
Powiązania:: https://bibliotekanauki.pl/articles/28411641.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: dendrometer
drought
Helianthus annuus
irrigation
water deficit
water stress
Opis:: Drought is characterised as a recurring climatic phenomenon with prolonged duration, affecting land through below-average rainfall and often accompanied by high temperatures. When the available water falls below the optimum level, water deficit or water stress arises, disrupting normal plant processes. This condition poses challenges for plant growth and development as it hampers the internal water transport, induces stomatal closure, and limits access to photosynthetic resources. The study employed the annual sunflower as the experimental plant. The plants were cultivated in a controlled environment with a temperature ranging from 20 to 25°C and a humidity level of 55 to 60%, supplemented by MARS HYDRO artificial LED lighting set to a 12-h photoperiod. Radial changes in the plant stems were monitored using a DD-S type dendrometric sensor to measure radial fluctuations. The collected data were recorded in a dendrometric data logger DL 18. Data collection occurred at hourly intervals from February 20 to March 9, 2023. The nine plants were divided into three groups, each comprising three plants. All plants from groups 1 and 2 received irrigation at one-day intervals (group 1 - 80 cm3 per plant, group 2 - 40 cm3 per plant) and group 3 was not irrigated. Based on these findings, visible water stress was evident in the plants under experimental conditions. Consequently, continuous monitoring throughout the growing season will be essential to adjust the irrigation rate to meet the requirements of the plants.
Źródło:: Journal of Water and Land Development; 2023, 59; 50--53
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Restoration of ponds in the municipal park in Zduńska Wola, Poland
Autorzy:: Widelska, Ewelina
Walczak, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/292845.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: park ponds
park revalorization
water quality monitoring
water system renaturalization
Opis:: The historic municipal park located in Zduńska Wola is covered in the central and northern part by conservator protection through an entry in the register of monuments and on the basis of an entry in the local spatial development plan. In terms of nature, the area has significant values due to old trees and the water system, which consists of two ponds fed by the Pichna River. As part of the preparatory work for the revalorization of the park, several studies and analyses were carried out, including assessment of the sanitary state of waters of Pichna River that supplies reservoirs. Degree of the river pollution made it impossible to restore the water system, the most important element of the park, while further supplying the ponds with river water. In order to ensure a satisfactory degree of purity and transparency of water in ponds, a decision was made to apply complex and modern technological solutions enabling the renovation of the water system. Project documentation was developed in 2015. After two years, they began to implement the project. Banks of both ponds were formed more gently, and the basins were deepened. Selection of vegetation around the reservoir and in the reservoir itself was based on the principle of biocenotic assumptions. The designed system is equipped with a circulation pump, skimmers, bottom drains, mechanical-mineral filter, swamp filter. This was to ensure adequate purification of water in ponds, based on natural processes, stimulated by the use of new, pro-ecological technologies.
Źródło:: Journal of Water and Land Development; 2020, 44; 151-157
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Monitoring of basic physicochemical parameters in the flow and their possible influence on the quality of the small water source
Autorzy:: Oppeltová, Petra
Boráková, Jana
Powiązania:: https://bibliotekanauki.pl/articles/292921.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Czech Republic
nitrates
phosphorus
sampling profiles
waste water
water protection
Opis:: The ground source of drinking water for the village of Skalice nad Svitavou is located 35 km North of Brno (Czech Republic). An evaluation of developments in selected indicators of water quality in this groundwater source in the period 2013–2017 was the essence of this work. The data was provided by Vodárenská akciová společnost, a.s., i.e. the operator. At the same time, annual monitoring of water quality in the Úmoří stream, which flows through the catchment area and can affect the quality of groundwater, was carried out. Water samples were collected in 2017–2018 from 6 profiles on the Úmoří stream and its two tributaries. Raw water from the groundwater source does not meet the requirements for drinking water in some indicators and needs to be treated. Monitoring of surface water shows that the most problematic indicator is total phosphorus, the concentration of which exceeded limit values on all sampling profiles. The highest values were found in the tributaries, where total phosphorus concentrations exceeded 10 mg∙dm^–3. There are 12 municipalities in the area of interest, only two of which have their own sewage treatment plant. It is clear from the results that wastewater in some municipalities is discharged directly into the recipient and is the cause of above-limit concentrations of both phosphorus and nitrogen. Intensively used agricultural land is another major source of pollution. Based on an analysis of sources of pollution, corrective measures have been proposed to improve the quality of surface and groundwater in the area.
Źródło:: Journal of Water and Land Development; 2020, 44; 106-117
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Applying of water quality indices methods for assessment of 9-Nissan Water Treatment Plant
Autorzy:: Abdul-Hameed, Hayder M.
Powiązania:: https://bibliotekanauki.pl/articles/1844403.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: nitrate
pH
suspended solids
water quality index
water treatment plant
Opis:: In this research different methods for measuring water quality indices were conducted to investigate the performance of the newly designed, constructed and operated 9-Nissan water treatment plant, Iraq. Data gathering and implementation took place throughout winter and summer. Water samples were taken periodically, according to the standard method, the research was carried out by collecting different random samples for eight months (Jun. 2015–Jan. 2016) and measuring (turbidity, total hardness, pH, total dissolved solids, suspended solids, Cl–, Mg2+, Fe2+,NO3–, NH3+) for each sample. Five different approaches and methodologies of calculating the water index were applied. The results revealed that the Water Quality Indices varied from 70.55 to 88.24, when applying Canadian Council of Ministers of the Environment Water Quality Index (CCMEWQI) and British Columbia water quality index (BCWQI) geometric weighted mean respectively. All the results, from the five approaches indicated good water quality, multiple regression analyses were conducted for turbidity, total hardness and suspended solids, they found that these parameters are strongly related to each other and to other parameters.
Źródło:: Journal of Water and Land Development; 2020, 47; 25-29
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Implementation of the Water Framework Directive: achievements and lessons learned at the half-way mark
Wdrażanie Ramowej Dyrektywy Wodnej: osiągnięcia i doświadczenia zdobyte w połowie drogi
Autorzy:: Ietswaart, T.
Powiązania:: https://bibliotekanauki.pl/articles/293354.pdf
Data publikacji:: 2006
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: gospodarka wodna
jakość wody
ochrona przed powodzią
wody powierzchniowe
flood protection
surface water
water management
water quality
Opis:: The Netherlands has a long tradition in water management, mainly stemming from the geography of the country. The 'struggle with water' has been organised from medieval times by the water boards (waterschappen), which are the oldest democratic institutions in the Netherlands . Nowadays the water boards, 27 in the whole of the Netherlands , are not only responsible for flood protection and regulation of water levels, but for water quality management and waste water treatment as well. In the years in which the WFD implementation has been underway in the Netherlands , several issues have arisen. Cooperation between all levels of government is key. This requires as clear as possible divisions of competences between the various parties involved. It also takes much time, especially in a process in which many matters have to be invented 'on the fly', such as criteria for designating water bodies, ecological standards, and the formulation of MEP and GEP.
Zdobyto wiele doświadczeń w dotychczasowych pracach związanych z wdrożeniem Ramowej Dyrektywy Wodnej (RDW). Podstawowym elementem niezbędnym dla osiągnięcia celu RDW jest ścisła współpracy między wszystkimi organami rządowymi i administracyjnymi, ponieważ problematyka wodna jest bardzo rozproszona. Dlatego też istotnym wymogiem jest wyraźne sprecyzowanie kompetencji poszczególnych organów. Kolejny problem to ustalenie rzeczywistych, możliwych do osiągnięcia, ekologicznych standardów dla wód powierzchniowych i podziemnych. Okazało się np. że nie jest możliwe osiągnięcie maksymalnego potencjału ekologicznego (MEP) i należało sformułować aktualny potencjał ekologiczny (GEP). Wydaje się, że termin osiągnięcia niektórych celów trzeba będzie przesunąć z 2015 na 2027 r.
Źródło:: Journal of Water and Land Development; 2006, 10; 39-44
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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