Integrated water quality-water supply modeling to support long-term planning

2013 ◽  
Vol 105 (4) ◽  
pp. E217-E228 ◽  
Author(s):  
W. Joshua Weiss ◽  
Grantley W. Pyke ◽  
William C. Becker ◽  
Daniel P. Sheer ◽  
Rakesh K. Gelda ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Quality Water

Water quality management in the coastal city in the period of considerable water consumption decrease

2001 ◽  
Vol 44 (2-3) ◽  
pp. 337-342
Author(s):  
R. Bogdanowicz ◽  
J. Drwal ◽  
Z. Maksymiuk ◽  
A. Osinski
Keyword(s):  
Water Quality ◽  
Quality Management ◽  
Water Supply ◽  
Water Consumption ◽  
Joint Venture ◽  
Water Quality Management ◽  
Sustainable Water Resources Management ◽  
Starting Point ◽  
Quality Water ◽  
Water Companies

Gdansk water supply system belongs among the oldest in Continental Europe. In 1992 one of the first joint-venture water companies was established in the city. Under a contract concluded between the firm and the municipality, the company was obliged to secure quick and considerable improvement of drinking water quality. At the same time a considerable water consumption decrease was observed. The drop entails new environmental, technical and economic problems. The biggest threat to the supplies of safe and good quality water is the phenomenon of secondary pollution of water resulting from the overdimensioning of the water supply network. Positive aspects of water consumption decrease are related to the opportunity of more rational and sustainable water resources management. The solutions adopted in Gdansk can serve as a starting point for working out the best model for water quality management in the coastal cities.

Water Supply in the Republic of Serbia – State and Perspectives

2017 ◽  
Vol 17 (1) ◽  
pp. 28-36
Author(s):  
Marko Langovic ◽  
Vojislav Dedjanski
Keyword(s):  
Water Supply ◽  
Economic Activities ◽  
Surface Water Resources ◽  
General Terms ◽  
Current State ◽  
State Of Water ◽  
Quality Water ◽  
The Republic ◽  
Further Development

Abstract Water supply has pronounced priority, over other forms of water use. The term water supply includes the ensure of high quality water in general terms, for households, public needs and economic activities. The Republic of Serbia disposes with considerable underground and surface water resources, which are used for supplying, but it is required their rational utilization. The aim of this study is to show the current state of water supply on the territory of Serbia based on the analysis of the different indicators. One of the goal is to scan prevalent conditions and problems related to it and to propose optimal solutions. The survey includes an explanation of the long - term needs of the Republic of Serbia for fresh water (as well as share of different sources in the total water supply) and estimation of the possibility of satisfying that needs from available resources. On the base of that, there are adopted conclusions about basic directions of further development in the field of water management and water supply in Serbia.

Water for the City

Global Cities ◽  
2017 ◽  
Author(s):  
Robert Gottlieb ◽  
Simon Ng
Keyword(s):  
Water Quality ◽  
Los Angeles ◽  
Water Supply ◽  
Long Distance ◽  
The North ◽  
State Of Water ◽  
Supply Relationship ◽  
Quality Water ◽  
Non Local ◽  
The City

This chapter describes the history and current state of water supply development and the water quality issues that Los Angeles, Hong Kong, and China have needed to address. It identifies the efforts to undertake long distance imported water transfers and their environmental impacts; water quality problems from surface and groundwater sources, and water management issues, including a discussion of water privatization efforts and increased bottled water sales. It analyzes different river systems and watershed basins and various dependencies on non-local sources, such as Hong Kong’s dependence on water from Guangdong waters, Los Angeles on water from Northern California and the Colorado River, and China’s coastal regions and regions in the north on various transfers from where water is more plentiful to where it is scarce. It also looks at the water quality-water supply relationship and how polluted sources have led to a loss of supply.

Enhanced coagulation for improvement of water quality in full-scale water treatment

2006 ◽  
Vol 6 (4) ◽  
pp. 75-79
Author(s):  
J. Yin ◽  
Z.S. Liu ◽  
T.J. Wang ◽  
K. Zhao ◽  
Y.B. Cui ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Water Supply ◽  
Full Scale ◽  
Enhanced Coagulation ◽  
Full Scale Tests

Full-scale tests were conducted to evaluate the effectiveness of enhanced coagulation for improving water quality by increasing dosage and adding coagulant aid. As a result, enhanced coagulation by increasing dosage of PAC or adding activated silicate can increase water supply quality of old processes. But it cannot be taken for granted that single changing dosage or adding coagulant aid is a long-term technology for improving water quality, due to cost and other multi-barrier approaches.

scholarly journals Temporal variation of water suitability for paddy irrigation needs at karst springs influenced by allogenic recharge in Gunungsewu Karst Area, Indonesia

2020 ◽  
Vol 200 ◽  
pp. 02024
Author(s):  
Ahmad Cahyadi ◽  
Eko Haryono ◽  
Tjahyo Nugroho Adji ◽  
Margaretha Widyastuti ◽  
Indra Agus Riyanto ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Fish Farming ◽  
Karst Area ◽  
Critical Element ◽  
The People ◽  
Paddy Irrigation ◽  
Irrigated Crops ◽  
Quality Water

Irrigation, a critical element in farming, can fulfill crop water needs and increase agricultural productivity during the dry season, provided that the two necessary factors are met, namely water supply and water quality. Water quality is a principal factor in assessing whether or not a water body is usable as a source of irrigation. Excess or lack of elements in irrigation water may affect irrigated crops and soil. For maximum harvests, studies scrutinizing the suitability of water supply for irrigation become necessary. Beton Spring has a large discharge, which the people of Ponjong District, Gunungkidul Regency, rely on for their irrigation and fish farming practices. Uniquely, this karst spring receives allogenic recharges from outside the karst area. This research was intended to assess the suitability of water quality of Beton Spring for temporal irrigation purposes by Sodium analysis (Na%), Sodium Adsorption Ratio (SAR), USSL, and Wilcox. The elements observed in the analysis were Ca2+, Na+, Mg2+, K+ and electrical conductivity. Based on the overall analysis results of the water quality series—Sodium analysis (the water samples were classified as Excellent), SAR (Excellent), USSL (moderate to good), and Wilcox (Excellent to Good), Beton Spring produces good-quality water that is suitable for irrigation.

scholarly journals The assessment of drinking water quality using zero unitarization method

2015 ◽  
Vol 41 (4) ◽  
pp. 91-95 ◽  
Author(s):  
Elżbieta Radzka ◽  
Katarzyna Rymuza ◽  
Jolanta Jankowska
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Supply System ◽  
Water Supply System ◽  
Chemical Parameters ◽  
Piped Water ◽  
Physical And Chemical Parameters ◽  
Quality Water ◽  
Physical And Chemical ◽  
Iron And Manganese

Abstract The work is an attempt to assess piped water quality in four counties located in east central Poland. Piped water was analysed for three successive years in each county. Water samples were tested for the following physical and chemical parameters: turbidity, colour, conductivity, taste, odour, pH, nitrates (III), nitrates (V), iron and manganese. They were compared with the current standard values. Preliminary data analysis included an analysis of maximum and minimum values of physical and chemical parameters, and it revealed that turbidity, colour, iron and manganese contents exceeded the permissible standards in all the counties. Percentages of parameters exceedances and mean values of the exceedances were used to rank the counties in terms of water quality. The ranking was obtained by means of multidimensional comparative analysis. It was demonstrated that best quality water was supplied by Węgrów County water supply system which was followed by Mińsk Mazowiecki County. The third rank was assigned to Łosice County and the poorest quality water was found to be supplied by Siedlce County water supply system.

TEKNOLOGI PENYEDIAAN AIR MINUM UNTUK KEADAAN TANGGAP DARURAT

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Arie Herlambang
Keyword(s):  
Water Quality ◽  
Emergency Response ◽  
Distribution Systems ◽  
Treatment Plant ◽  
Piping System ◽  
Process Technology ◽  
Treatment Technology ◽  
Disaster Victims ◽  
Ultra Filtration ◽  
Quality Water

In the event of natural disasters such as earthquakes, tsunamis, landslides, floods and droughts, water occupies a key role in disaster relief. The presence of water is important for drinking, cooking and support the refugee areas of environmental sanitation and avoiding disaster victims of diseases waterborn disease. Water problem in disaster conditions may occur partly as a result: the disturbance of water sources because change of water quality, to become turbid or salty, the destruction of a piping system, treatment plant damage, disruption of distribution systems, or the scarcity of water in evacuation areas. Introduction of water quality becomes important to determine which process technology will be used and saved investments in emergency conditions. Priority handling of clean water usually comes first in the refugee areas with communal system, because the need of water for bathing, washing and toilet is big enough, while for a drink in the early events during disaster dominated by bottled water, but for their long-term, they have to boil water. For remote areas and difficult to reach individuals who usually use  system more simple and easily operated. Water Supply Technology for emergency response has the characteristic 1). Able to operate with all sorts of water conditions (flexible adaptable), 2). Can be operated easily, 3). Does not require much maintenance, 4). Little use of chemicals, and 5). Portable and easy removable (Mobile System). Keywords :  Water Quality, Water Treatment Technology, Drinking Water, Emergency Response, filtration, ceramic filtration, Ultra filtration, Reverse Osmosis, Ultraviolet Sterilizer, Ozonizer, Disinfection.

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