scholarly journals Groundwater Resources of Mukhrani Artesian Basin

2021 ◽  
pp. 175-184
Author(s):  
Avtandil Jgamadze ◽  
Keyword(s):  
Water Supply ◽  
Natural Resources ◽  
Groundwater Resources ◽  
High Quality ◽  
Artesian Basin ◽  
Quantitative Distribution ◽  
Hydrogeological Parameters ◽  
Household Water ◽  
The City ◽  
Natural Reserves

The Mukhrani artesian basin is a reservoir containing high quality groundwater. Well-known aquifers and galleries are located within the artesian basin, which are one of the main sources of drinking and household water supply for the city of Tbilisi. The article summarizes the hydrogeological conditions of the Mukhrani artesian basin. The hydrogeological parameters of the productive aquifer were determined based on the results of studies carried out at the existing water intakes. A hydrodynamic map of the artesian basin was compiled. The spatial and quantitative distribution of groundwater resources in the basin has been estimated. Established dynamic (natural) resources and static (natural) reserves of groundwater.

scholarly journals About the question of the assessment of the drinking water quality in centralized water systems in the current conditions

2020 ◽  
Vol 99 (6) ◽  
pp. 563-568
Author(s):  
Yuliya A. Novikova ◽  
K. B. Friedman ◽  
V. N. Fedorov ◽  
A. A. Kovshov ◽  
N. A. Tikhonova ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Supply System ◽  
Drinking Water Quality ◽  
Water Supply Systems ◽  
High Quality ◽  
Supply Systems ◽  
The City

Introduction. Regulation of drinking water quality is a very important area of health care and improving the quality of life of the population of the Russian Federation.The aim of this work is the development a model for the assessment of the drinking water quality and calculating the share of the population, including urban, provided with high-quality drinking water from centralized water supply systems, taking into account new methodological approaches to the evaluation of the quality of drinking water using the example of water supply to settlements in the Leningrad Region. Material and methods. The data on the organization of centralized cold water supply systems and monitoring systems for drinking water quality and the results of laboratory studies of drinking water quality in the cities of Volkhov, Svetogorsk, Slantsy, Tosno were studied. Statistical processing of the results was performed, the categories of quality of drinking water supplied to the population were determined, the number of the population provided with high-quality drinking water from the water supply system was calculated in accordance with Guidelines 2.1.4.0143-19.Results. In 2018, 100% of the population was provided with quality drinking water only in the city of Slantsy. In the city of Tosno, this index reached of 83.5%. In the cities of Volkhov and Svetogorsk, drinking water was rated as low-quality. But it is worth noting that in the cities of Volkhov and Slantsy laboratory tests were carried out at 2 points, in the city of Svetogorsk - only at the 1 point, which, given the number of residents, is not enough. For an objective assessment of the state of drinking water and the development of measures aimed at improving its quality, it is necessary to increase the number of monitoring points, as well as to include the results of control and supervision measures and production laboratory control conducted by water supply organizations in the volume of laboratory information.Conclusion. The proposed model allows us to assess the drinking water quality in centralized water supply systems and the proportion of the population, including urban, provided with quality drinking water at the level of the water supply system, settlement, municipal district (urban district), subject of the Russian Federation

scholarly journals Sub Zoning as a Measure for Water Supply Optimization—Case Study of the City of Nikšić

2020 ◽  
Vol 2 (1) ◽  
pp. 37
Author(s):  
Aleksandar Daničić ◽  
Dejan Dimkić ◽  
Mira Papović ◽  
Darko Kovač
Keyword(s):  
Water Supply ◽  
Distribution System ◽  
Groundwater Resources ◽  
Technical Solution ◽  
Operation Analysis ◽  
The Republic ◽  
Definition Of ◽  
Supply Optimization ◽  
The City

The drinking water supply of the city of Nikšić, the second largest city in the Republic of Montenegro, is secured from a nearby karstic groundwater resources. Water is transported from two different directions (two sources) into the distribution system. At the end of the distribution system, on the opposite side of water resources, there is a counter tank, as the only storage capacity for leveling the inflow and consumption in the system. However, the interplay of the three vital water supply capacities (two water sources and counter tank) does not meet the requirements of regular supply, to the point where it is necessary to disconnect the tank, from regular operation. The existing system, which operates without leveling space, is fraught with numerous problems, ranging from the appearance of significant temporal and spatial pressure variations, to the inability of delivering the needed quantities to the peripheral parts of the system, in seasonal peaks of consumption. During International project Drinkadria (2013–2016), efforts for solving numerated problems were done. This paper provides an overview of activities on system operation analysis, based on simulation modeling and definition of technical solution, proposed in the form of subzoning. Realization of proposed subzones will put all capacities in the full operation state, with the realization of stable pressures in the system, and with a regular supply of all parts of the system in all predictable modes of consumption.

scholarly journals Efficient management of municipal water: water scarcity in Taiz City, Yemen – issues and options

2015 ◽  
Vol 366 ◽  
pp. 186-186
Author(s):  
A. Noaman ◽  
A. W. Al-Sharjabe
Keyword(s):  
Water Supply ◽  
Crop Production ◽  
Sea Water ◽  
Groundwater Resources ◽  
Geographical Information ◽  
Planning System ◽  
Groundwater Depletion ◽  
Groundwater Availability ◽  
North East ◽  
The City

Abstract. The city of Taiz is the third largest city in Yemen, located about 250 km south of Sana'a and about 90 km inland from the Red Sea. Taiz is situated on the foothills and slopes of the Jabal Saber Mountain at elevations between 1100 and 1600 m a.s.l. Its population is rapidly increasing and is expected to grow from about 580 000 in 2012 to over 1 000 000 in 2020. Water supply is the most pressing problem in the city of Taiz today due to the significant shortages of supply (the average consumption is 23 L/d) caused by the depletion of existing water resources and the lack of a clear direction in dealing with the problem. This forces frequent service interruptions (30–40 days) and the service is rarely extended to new users (only 57% of the population are covered). Sanitation is another daunting problem. The (poorly maintained) sewerage network covers only 44% of the population. In several unsewered areas to the north, east and west of the city, raw sewage is disposed of directly into wadis, which causes a health hazard and threatens to contaminate groundwater resources. The proper computation of demand and supply is based on the various fields. It was performed under this study with a particular model: the Water Evaluation and Planning System (WEAP) developed by the Stockholm Environment Institute (SEI). WEAP is supported by a geographical information system (GIS). The available and relevant data on poverty and social indicators, water use and sources, surface runoff, surface and groundwater availability, groundwater depletion and management, crop production areas, soil cover, maps, and meteorological information were gathered from a number of sources. There are only two ways to decrease the water deficit: by increasing water supply or decreasing the water demand. Any adaptation project aims at one of the two. Six projects are proposed, with three in each category (1, 2 and 3 to decrease demand, and 4, 5 and 6 to increase supply): − Project 1: Improvement of irrigation methods − Project 2: Improvement of the water distribution network in Taiz City − Project 3: Water re-use − Project 4: Water harvesting − Project 5: Brackish water treatment − Project 6: Desalinization of sea water

Action Plan for Urban Waste Water Recycling in Lucknow

2021 ◽  
Vol 9 (10) ◽  
pp. 460-465
Author(s):  
Baljeet Singh
Keyword(s):  
Waste Water ◽  
Water Supply ◽  
Groundwater Resources ◽  
Action Plan ◽  
Treatment Plant ◽  
Water Recycling ◽  
Gangetic Plain ◽  
Urban Waste ◽  
Tube Wells ◽  
The City

Abstract: Urban waste water generation per day in Lucknow city is 84 MLD and the treatment capacity of this urban waste water is 446 MLD and 445 MLD urban waste water flows in Gomti River and 339 MLD urban waste water partially treated. Some waste water is recycled by Water treatment plant which are treating 560 MLD urban waste water and remaining are polluted to ground and as well as gomti river.to achieve 100% recycling and treatment we need a action plan for it. The formation of Lucknow municipal board took place in 1882, while as the water supply demand is fulfilled by tube wells, river Gomti, Sharda Sahayak feeder canal, aquifers, and so on, the maximum source of intake is Gomti which is geographically distinguished as Cis and Trans Gomti. The Cis Gomti side is comparatively lower than the area on Trans Gomti side. Since the city is located on alluvial aquifers of Indo-Gangetic plain, where due to easy accessibility, private tube well construction activity is going on unchecked, especially in residential colonies and multi-storeyed buildings, and this is the reason why the private tube wells/borings have almost mushroomed in this capital city. This has led to heavy pumpage/continuous abstraction of groundwater resources, widespread depletion of aquifers and as a result, going down of groundwater levels drastically to almost unsustainable levels, from where it seems very difficult that the depleted conditions of ground water could ever improve (6). The water supply network depends on sources like tube wells, river Gomti and the Sharda Sahayak feeder canal. The distribution of water supply has a very vast network and it is reported to be 2884 km. The rate of water supply is assumed to be 150 LPCD and water demand is calculated accordingly, The availability of water, as reported by Jawaharlal Nehru national urban and rural mission (JNNURM) on November 2016, was 619 MLD from various sources, however, it keeps fluctuating as the city is more vulnerable to migration from other parts of state. Keywords: urban waste water, waste water recycling, reuse of waste water, sewage treatment plant

DETERMINATION OF ARSENIC, CADMIUM, LEAD, COOPER AND ZINC IN DRINKING WATER FROM R. MACEDONIA

2018 ◽  
Vol 28 (4) ◽  
pp. 1259-1264
Author(s):  
Kiril Lisichkov ◽  
Katerina Atkovska ◽  
Neven Trajchevski ◽  
Orce Popovski ◽  
Nadica Todorovska
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Supply System ◽  
Water Supply System ◽  
Bottled Water ◽  
Cadmium Lead ◽  
The City

The presence of some chemical compounds at higher levels than maximum permissible concentrations (MPC) in the drinking water, suggests of water resources pollution. In this paper the following elements were analyzed: total arsenic, cadmium, lead, cooper and zinc. Twelve samples of water from the water supply system from the city of Skopje were examined during one year from three different springs. Also, ten samples of bottled water from three producers from the Macedonian market were tested.The determined average mass concentrations of total As, Cd(II), Pb(II), Cu(II) and Zn(II) in the analyzed water samples from the water supply system are 1.35 μg/l, 0.06 μg/l, 0.6 μg/l, 0.9 μg/l and 1,12 μg/l, respectively, and for the tested bottled water, the mean values ranges from 0.56 - 0.83 μg total As / l, 0.053 - 0.056 μg Cd(II)/l, 0.51 - 0.54 μg Pb(II)/l , 0.6 - 0.87 μg Cu(II)/l and 0.68 - 0.8 μg Zn(II)/l water.The following instrumental analytical methods and techniques were used for the analysis of the tested samples of drinking water: flame atomic absorption spectroscopy (AAS), atomic absorption spectroscopy with hydride cеll, electrothermal atomic absorption spectroscopy.The obtained results are shown in tables and graphic form. According to the obtained results a comparative analysis was carried out indicate that it is a water of good quality that can be used in different branches of the process industry.The obtained results in this paper do not exceed the values of the MPC of the Republic of Macedonia prescribed by the legal regulations for the drinking water, which confirm the health safety of the drinking water from the water supply system in the city of Skopje and the packed waters from the Macedonian market in relation to the tested elements.

Leading the City of Baltimore into the 21st Century: Flexible Treatment Solutions and Integrated Raw Water Management

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
J. L. Manuszak ◽  
M. MacPhee ◽  
S. Liskovich ◽  
L. Feldsher
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Supply ◽  
Conceptual Design ◽  
Membrane Filtration ◽  
Treatment Plant ◽  
Low Pressure ◽  
Management Tool ◽  
Raw Water ◽  
The City

The City of Baltimore, Maryland is one of many US cities faced with challenges related to increasing potable water demands, diminishing fresh water supplies, and aging infrastructure. To address these challenges, the City recently undertook a $7M study to evaluate water supply and treatment alternatives and develop the conceptual design for a new 120 million gallon per day (MGD) water treatment plant. As part of this study, an innovative raw water management tool was constructed to help model source water availability and predicted water quality based on integration of a new and more challenging surface water supply. A rigorous decision-making approach was then used to screen and select appropriate treatment processes. Short-listed treatment strategies were demonstrated through a year-long pilot study, and process design criteria were collected in order to assess capital and operational costs for the full-scale plant. Ultimately the City chose a treatment scheme that includes low-pressure membrane filtration and post-filter GAC adsorption, allowing for consistent finished water quality irrespective of which raw water supply is being used. The conceptual design includes several progressive concepts, which will: 1) alleviate treatment limitations at the City's existing plants by providing additional pre-clarification facilities at the new plant; and 2) take advantage of site conditions to design and operate the submerged membrane system by gravity-induced siphon, saving the City significant capital and operations and maintenance (O&M) costs. Once completed, the new Fullerton Water Filtration Plant (WFP) will be the largest low-pressure membrane plant in North America, and the largest gravity-siphon design in the world.

scholarly journals Will Households Invest in Safe Sanitation? Results from an Experimental Demand Trial in Nakuru, Kenya

2021 ◽  
Vol 18 (9) ◽  
pp. 4462
Author(s):  
Rachel Peletz ◽  
Caroline Delaire ◽  
Joan Kones ◽  
Clara MacLeod ◽  
Edinah Samuel ◽  
...  
Keyword(s):  
Low Income ◽  
Low Income Countries ◽  
Health Concern ◽  
High Quality ◽  
Market Prices ◽  
Price Point ◽  
Improved Sanitation ◽  
Sanitation Infrastructure ◽  
The City ◽  
Experimental Demand

Unsafe sanitation is an increasing public health concern for rapidly expanding cities in low-income countries. Understanding household demand for improved sanitation infrastructure is critical for planning effective sanitation investments. In this study, we compared the stated and revealed willingness to pay (WTP) for high-quality, pour-flush latrines among households in low-income areas in the city of Nakuru, Kenya. We found that stated WTP for high-quality, pour-flush latrines was much lower than market prices: less than 5% of households were willing to pay the full costs, which we estimated between 87,100–82,900 Kenyan Shillings (KES), or 871–829 USD. In addition, we found large discrepancies between stated and revealed WTP. For example, 90% of households stated that they would be willing to pay a discounted amount of 10,000 KES (100 USD) for a high-quality, pour-flush latrine, but only 10% of households redeemed vouchers at this price point (paid via six installment payments). Households reported that financial constraints (i.e., lack of cash, other spending priorities) were the main barriers to voucher redemption, even at highly discounted prices. Our results emphasize the importance of financial interventions that address the sizable gaps between the costs of sanitation products and customer demand among low-income populations.

scholarly journals Energy Recovery Using Micro-Hydropower Technology in Water Supply Systems: The Case Study of the City of Fribourg

Water ◽  
2016 ◽  
Vol 8 (8) ◽  
pp. 344 ◽  
Author(s):  
Irene Samora ◽  
Pedro Manso ◽  
Mário Franca ◽  
Anton Schleiss ◽  
Helena Ramos
Keyword(s):  
Water Supply ◽  
Energy Recovery ◽  
Water Supply Systems ◽  
Supply Systems ◽  
The City
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