Water pollution control measures and water quality development in the Ruhr catchment 1972-1992

1995 ◽  
Vol 32 (5-6) ◽  
pp. 209-216
Author(s):  
K. R. Imhoff

Since five million people have to rely on Ruhr water as a source for potable water supply, quality and quantity aspects of the river are very important for the region. In the last 20 years, 2.1 × 109 DM have been spent for water quality control in the Ruhr basin. The most important types of plants and the progress in river water quality are described.

1989 ◽  
Vol 21 (2) ◽  
pp. 119-122
Author(s):  
I. H. Sharp ◽  
M. A. Schell

Existing and potential recreational uses in a number of very different water supply catchments managed by two major N.S.W. authorities were investigated. Community attitudes to recreational use of both land based and water based activities were analysed together with reactions to increased charges to cover costs of ensuring safe water quality. Threats to water quality were studied and additional management and water quality control measures formulated.


2019 ◽  
Vol 19 (1) ◽  
pp. 9-20
Author(s):  
J. K. Obosu ◽  
J. S. Y. Kuma ◽  
W. K. Buah

The Tarkwa district is an important gold mining area in the Southwestern part of Ghana. The main source of potable water supply to the Tarkwa Nsuaem Municipality is from the Bonsa River treatment plant managed by the Ghana Water Company Limited (GWCL). The River is under threat from serious contamination by illegal mining ("galamsey") activities within its catchment area. Consequently, the amount of water supplied to the Municipality has not kept pace with its growing population due to increasing treatment cost and supply difficulties. The need to find alternative and sustainable sources of potable water supply to augment that from GWCL to the Municipality has become imperative. A large void volume created as a result of the abandoned underground mine operated by Gold Fields Ghana Limited (GFGL), after its closure in 1999 has flooded. This potential water resource is being pumped out daily, and wasted, sometimes spilling-over to low lying areas around the mine when allowed to reach its decant level. This study estimated the quantity of water in the Abontiakoon Vertical Shaft (AVS) which is part of the large underground void using survey production figures and post-closure void filling parameters resulting in 2.8 x 106 m3 and 2.9 x 106 m3 respectively. The rate of recharge to the underground water was also estimated to ascertain the sustainability of the void water should it be considered for use by employing the model of predicting rebound on “void filling” basis and average dewatering rate before closure at 2 535 m3/day and 2 618 m3/day respectively; indicating that recharge to the AVS reservoir is about 6 x 106 gal/day or 30% of current daily water supply deficit in the TNM. The estimated potential volume of mine water in storage in the entire Tarkwa underground void is 32 x106 m3. Two samples of the mine water were taken in November 2011 and February 2015 for quality analysis, in order to have a fair knowledge of the water quality parameters. The quality of the underground water was found to be potentially good, and not likely to cause any health threats, or water quality problems. Depth sampling is recommended to determine the chemical profile of the reservoir. Keywords: Reservoir, Municipality, Bonsa River, Contamination, Tarkwa


1984 ◽  
Vol 16 (5-7) ◽  
pp. 407-418 ◽  
Author(s):  
H Nyroos

Estimation of water quality impacts plays an important role in the planning of water pollution control. In this paper the connection of water quality aspects with the rest of the planning procedure is examined in the light of a case study area, Lake Päijänne in Finland. For this area an integrated water resource development plan was made by the Finnish water authorities. In order to diminish the adverse effects resulting from effluents of pulp and paper mills and municipalities, different pollution control alternatives were drawn up. Next, forecasts about the development of water quality in different alternatives were made. The most important parameters from the point of view of the different modes of water utilization were taken into account. These parameters were oxygen, phosphorus, COD, lignin and colour. In addition, in assessing the impacts, toxity of effluents was taken into consideration. The impacts of these parameters on the usability and utilization of water areas were analyzed. The forecasts of impacts on vacation settlement, water supply and fisheries were made. In the comparison of the alternatives, numerous intangible factors were involved. In the assessment of the alternatives the costs of water pollution control measures, the benefits and the adverse effects were taken into consideration. The impacts of intangible factors were assessed in each alternative by comparing the water use possibilities with the goals that had been set.


Author(s):  
Е.Д. Нефедова ◽  
О.Д. Галактионова

Затронуты вопросы, связанные с организацией контроля качества питьевой воды, в том числе производственного контроля, в соответствии с действующими санитарными и отраслевыми нормативными документами. Приведен опыт ГУП «Водоканал Санкт-Петербурга» по формированию программ производственного контроля, выбора контрольных точек в распределительной сети с учетом оценки риска при ухудшении качества воды у потребителя. Обозначены инициативы по внесению в нормативные акты, касающиеся организации производственного контроля, обязательности использования автоматизированных систем контроля качества воды по основным индикаторным показателям (температура, мутность, цветность, рН, общий органический углерод, остаточный хлор). Это позволит повысить эффективность управления системой водоснабжения, оперативно реагировать на изменения состава воды, проводить постоянный мониторинг состояния устойчивости системы с переходом на цифровые технологии («умный водоканал»). The issues related to the arrangement of the drinking water quality control, including in-process monitoring, in accordance with the current sanitary and sectorial regulations are touched upon. The experience of SUE «Vodokanal of St. Petersburg» in developing production control programs, selecting control points in the distribution network with account of the risk assessment in case of water quality deterioration at the consumer’s tap, is presented. Initiatives for including into the statutory regulations on the arrangement of production control, the mandatory use of automated water quality control systems for the main indicator values (temperature, turbidity, color, pH, total organic carbon, residual chlorine) are outlined. The amendments will provide for improving the efficiency of the water supply system management, responding promptly to the changes in water composition, and continuously monitoring the state of the system sustainability with the transition to digital technologies («smart water utility»).


Water Policy ◽  
2016 ◽  
Vol 18 (4) ◽  
pp. 844-861 ◽  
Author(s):  
Wenlan Ke ◽  
Yalin Lei ◽  
Jinghua Sha ◽  
Guofeng Zhang ◽  
Jingjing Yan ◽  
...  

Mining cities have undergone the process of extensive exploitation, which always results in a series of water issues. Integrated water resource management is necessary in improving water supply, allocation and quality without damaging economic development. This article constructs a linear optimization model including a ‘Top-Down’ socio-economic mode, and ‘Bottom-Up’ water quality control and water supply–demand modes with integrated water resource management focused on water allocation and water reclamation. Based on computer simulation, the model can propose a water resource management under the constraints of water supply–demand and water quality control, and the model can precisely predict the influences of water resource management on economic development, water utilization and water quality. Taking Ordos, a Chinese national resource city, as a case study, this model addresses a detailed water resource management, including a water allocation plan among industries and water reclamation plan with technologies, selection, arrangement and subsidies. The implementation of water resource management can fulfill multiple objectives on water quantity, water quality and sustainable economic development. This study indicates that water resource management with a comprehensive dynamic model can be a maneuverable approach to realize the sustainable development of economic growth and water resource utilization, as well as formulate the regional development plan.


2012 ◽  
Vol 260-261 ◽  
pp. 659-662
Author(s):  
Jun Pan ◽  
Hong Xue Li ◽  
Chang Hong Li

Through to analysis the influence of the effluent from the sewage treatment plant to the river water quality of Fangshen-Habaqi stream segment in lower reaches comprehensively, in order to achieve water pollution control and water function zone protection. This paper use QUAL2K model to simulate the influence to lower reaches water quality, and the simulation factor is BOD. The result showed that the downstream BOD concentration cannot reach the water quality standards Ⅲ. This paper provides some corresponding control measures, so as to provide the scientific basis of the water pollution control planning research.


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