Evaluation of the hydraulic conductivity and water quality of a natural water purifier using ceramic waste aggregate as filter layer

2017 ◽  
Vol 4 (1) ◽  
pp. 35-41
Author(s):  
Rahul Roy ◽  
◽  
Pratyush Kumar ◽  
Brijesh Nair
Keyword(s):  
Water Quality ◽  
Hydraulic Conductivity ◽  
Natural Water ◽  
Ceramic Waste ◽  
Filter Layer

On methodological approaches to the improvement of surface water bodies and target indicators of the natural waters’ quality

2021 ◽  
Vol 27 (1) ◽  
pp. 6-14
Author(s):  
V. Zaslonovsky ◽  
◽  
N. Sharapov ◽  
M. Bosov ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Natural Water ◽  
Aquatic Ecosystems ◽  
Natural Waters ◽  
Water Bodies ◽  
Surface Water Bodies ◽  
Methodological Approaches ◽  
Natural Water Bodies

The paper is devoted to the development of proposals concerning the improvement of surface water bodies and the appointment of target indicators of the natural waters’ quality. The paper considers a variety of problems of preserving, restoring and improving the quality of natural surface waters: from regional features of the formation of natural water composition, to differences in the requirements for the quality of water consumed. The object of the study is the qualitative indicators of the waters of natural water bodies, and the subject of the study is the methodological approaches to the normalization of these indicators. The purpose of the work is to identify the main shortcomings in the domestic system of rationing the quality of natural waters, and to form appropriate proposals. For this purpose, the following tasks were set and solved: to review the methodological approaches to assessing and rationing the quality of natural waters used in some foreign countries and in the Russian Federation, to identify the main causes and shortcomings; to make proposals for improving the current system of water quality rationing. The result of this work is the conclusions about the lack of impact of the strategy operating in Russia in the development of schemes of complex use and protection of water objects, standards of permissible impact on water bodies, the appointment of permissible discharge limits in terms of maintaining and improving the water quality of natural water bodies. The reasons that led to this are indicated. The necessity of taking into account, in addition to the physical and chemical composition, also hydrobiological parameters is shown. It is concluded that instead of fisheries management standards, environmental standards should serve as the basis for target indicators of water quality of natural water bodies, which determine the well-being of humans and the stable functioning of aquatic ecosystems, taking into account regional factors. Proposals were made to adjust the methodological approaches to the implementation of this strategy. According to the authors, these proposals will speed up the solution of the main objectives of the strategy – the ecological improvement of water bodies, the preservation of unique aquatic ecosystems and the environmentally safe development of territories that previously experienced relatively small anthropogenic impacts (Eastern Siberia and the Far East)

Изменение качества природной воды источника централизованного водоснабжения при ее транспортировке

2019 ◽  
pp. 43-47
Author(s):  
O. Govorov ◽  
Z. Govorova ◽  
U. Rudich
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Natural Water ◽  
Water Source ◽  
Microbial Count ◽  
Supply Source ◽  
Water Treatment Process ◽  
Water Mains ◽  
Treatment Facilities

Рассмотрены вопросы трансформации качества воды природного источника водоснабжения при ее транспортировке по водоводам большой протяженности от водозабора до площадки водопроводных очистных сооружений и причины, влияющие на изменение качественного состава воды. Приведены результаты исследований изменения качества воды природного водоисточника, характеризующегося малой мутностью, средней цветностью, сезонным развитием фитопланктона и содержанием органических соединений. Установлено, что в отдельные периоды года происходит как улучшение, так и ухудшение качества транспортируемой по водоводам воды по показателям: перманганатная окисляемость, общее микробное число, численность и биомасса фитопланктона в несколько раз, вследствие чего возрастает в несколько раз нагрузка на сооружения по загрязняющим веществам и снижается эффективность процесса водоочистки. Постоянный мониторинг и систематизация данных по изменению качества воды позволят своевременно корректировать режимы и параметры работы водоочистных сооружений, тем самым обеспечивая стабильную эффективность очистки воды до нормативных требований.The issues of the water quality transformation from a natural water supply source during transportation by longdistance water mains from the water intake to the water treatment facilities site and the reasons affecting the changes in the qualitative composition of water are considered. The results of the studies on the changes in the water quality of a natural water source characterized by low turbidity, medium color, seasonal growth of phytoplankton and the concentration of organic compounds are presented. It has been established that in certain periods of the year both the improvement and deterioration of the quality of water transported by water mains by several times occur in terms of the following indicators: permanganate value, total microbial count, phytoplankton count and biomass, resulting in several times increase in the pollution load on the treatment facilities and decrease in the efficiency of the water treatment process. Continuous monitoring and systematization of data on the changes in water quality will make it possible to timely adjust the modes and parameters of water treatment plants, thereby ensuring sustainable water treatment efficiency according to the regulatory requirements.

Spatial and Temporal variation analysis of water quality of Hemavathi River, Karnataka, India

2018 ◽  
Vol 6 (9) ◽  
pp. 196
Author(s):  
Santhosh K. M ◽  
S. Prashanth
Keyword(s):  
Water Quality ◽  
Agricultural Runoff ◽  
Spatial And Temporal Variation ◽  
Final Conclusion ◽  
Variation Analysis ◽  
Pollution Load ◽  
Quality Of Water ◽  
Pollution Loading ◽  
Origin Point

Urban development, agricultural runoff and industrialization have contributed pollution loading on the environment.  In this study Hemavathi river water from a stretch from its origin point to its sangama was studied for pollution load by determining parameters of water quality like pH, Alkalinity,  Ca, Mg, Nitrate, TDS, BOD, COD , and the results were compared with WHO and BIS standards to draw final conclusion on the quality of water.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

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