scholarly journals The forecast of the change of water quality of the Zeravshan River under the conditions of Uzbekistan

2018 ◽  
Vol 3 ◽  
pp. 4-10
Author(s):  
Iskandarova Sh.T. ◽  
Usmanov I.A.
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
River Pollution ◽  
The State ◽  
Drinking Water Supply ◽  
Mineral Fertilizers ◽  
Medium Term ◽  
Technical Requirements ◽  
The Republic

The purpose of the research is to develop measures for the protection of the Zeravshan river, which is used as an industrial and drinking water supply for the population of several regions of the Republic. Studies have established that the main source of river pollution is industrial enterprise «Navoiazot», which produces mineral fertilizers for needs of agriculture. Discharge of wastewater into the water, leads to pollution of water, and the quality does not correspond to the state standard specification about sources of centralized drinking water supply, about hygienic, technical requirements. At the same time, harmful chemicals are found in the water of the Zeravshan river, which are 2...9 times higher than the MPC installed on them. The medium-term forecast showed that by 2025 the ecological state of the Zeravshan river will not be improved, due to the fact that the production of mineral fertilizers is planned to be increased. In this regard, recommendations on the protection of the Zeravshan river have been developed, which will help to improve the monitoring of the state of the water body and improve the conditions of water use of the population.

Methodology for estimating the state of non-centralized sources of drinking water supply in an emergency socio-economic situation

2021 ◽  
pp. 56-64
Author(s):  
С.В. Капранов
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Tap Water ◽  
Water Source ◽  
Water Sources ◽  
The State ◽  
Drinking Water Supply ◽  
Laboratory Studies ◽  
Grading Scale

Целью работы явилось обоснование необходимости организации и проведения на конкурсной основе благоустройства нецентрализованных водоисточников с использованием разработанной методики комплексной гигиенической и экологической оценки состояния нецентрализованных источников питьевого водоснабжения в условиях чрезвычайной ситуации. В работе использованы результаты многолетнего санитарно-гигиенического обследования и лабораторных исследований воды коллективных источников нецентрализованного питьевого водоснабжения. Определены следующие основные показатели для комплексной гигиенической и экологической оценки состояния нецентрализованных водоисточников: степень соответствия водоисточника установленным санитарно-гигиеническим и санитарно-техническим нормам и требованиям; соблюдение зон санитарной охраны; санитарно-просветительное, эстетическое и художественное оформление водоисточников; уровень благоустройства территории, окружающей водоисточники; качество воды водоисточников по результатам лабораторных исследований за определенный период. По каждому из пяти показателей предусмотрена оценка по 12-балльной шкале с последующим суммированием баллов с целью получения итогового результата комплексной оценки. Учитывая успешное проведение конкурса по благоустройству нецентрализованных источников водоснабжения с использованием разработанной методики комплексной гигиенической и экологической оценки состояния нецентрализованных источников питьевого водоснабжения в районе с резким дефицитом питьевой водопроводной воды, рекомендовано опыт проведения данного мероприятия распространить на другие административные территории, находящиеся в подобной ситуации. The work objective was substantiating the need to arrange and conduct, on a competitive basis, the improvement of non-centralized water sources using the developed methodology for a comprehensive hygienic and environmental estimation of the state of non-centralized sources of drinking water supply in an emergency. The work uses the results of many years of sanitary and hygienic survey and laboratory studies of water from communal sources of non-centralized drinking water supply. The following main indicators have been determined for a comprehensive hygienic and environmental estimation of the state of non-centralized water sources: the degree of compliance of the water source with the established sanitary, hygienic and sanitary technical regulations and requirements; compliance with the sanitary protection zones; the sanitary and educational, aesthetic and artistic design of water sources; the level of improvement of the territory surrounding the water sources; the water quality of the water sources according to the results of laboratory tests for a certain period. Each of the five indicators was estimated according to the 12-point grading scale with the subsequent summation of points in order to provide for the final result of a comprehensive estimation. Considering the successful holding of a competitive tender for the improvement of non-centralized water supply sources using the developed methodology for a comprehensive hygienic and environmental estimation of the state of non-centralized drinking water supply sources in an area with severe shortages of drinking tap water, extending the experience of these measures to other administrative territories in a similar situation is recommended.

HYDROGEOLOGICAL ANALYSIS OF THE CURRENT STATE OF THE GROUNDWATER QUALITY IN THE MOSCOW REGION

2020 ◽  
pp. 128-136
Author(s):  
N.P KARPENKO ◽  
◽  
I.M. LOMAKIN
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Underground Water ◽  
The State ◽  
Moscow Region ◽  
Drinking Water Supply ◽  
Factors Affecting ◽  
Current State ◽  
Environmental Measures

The purpose of the work is to study and assess the state of underground water in the Moscow region used for drinking water supply and to develop measures to improve the quality of underground water. There was made an analysis of the state of the main operated aquifers and their dynamics and were found basic regularities of the formation of the hydrogeological regime of the exploited horizons in the Moscow region. The main factors affecting the chemical composition of groundwater were considered. Modern approaches were developed and proposed to solve the problem of preserving the quality of underground water for drinking water supply. To ensure the quality of underground water intake in the Moscow region, recommendations were developed to preserve the quality of underground water and the necessary set of environmental measures was proposed to minimize the deterioration of the drinking water quality. Timely identification of possible sources of deterioration in the quality of underground water and usage of innovative technologies for underground water treatment of from pollution will prevent from risky situations in the problem of assessing the quality of the underground water used for domestic and drinking needs of the population. Implementation of the proposed measures will improve environmental conditions of the ground water resources within the Moscow region.

scholarly journals Influence of the quality of drinking water supply sources on the formation of the ecologically-dependent pathology of the population of the Republic of Dagestan

2021 ◽  
Vol 15 (4) ◽  
pp. 168-176
Author(s):  
M. G. Daudova ◽  
R. B. Bagomedova ◽  
K. K. Bekshokov ◽  
M. M. Medzhidova ◽  
S. M. Nakhibashev ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Negative Impact ◽  
Kidney Diseases ◽  
Ecological Condition ◽  
Drinking Water Quality ◽  
Chemical Contamination ◽  
The Republic

Aim. Study of the influence of drinking water quality on the ecologically-dependent morbidity of the population of the Republic of Dagestan.Material and Methods. Methods of current and retrospective analysis of regional health indicators and methods of mathematical-statistical and medical-geographical analysis were used. Statistical processing of the results was carried out using the STATISTICA and Excel software packages. When carrying out laboratory studies on the quality of drinking water, we used a Lumex atomic absorption spectrometer "MGA-915MD".Results. Numerous hygiene studies indicate the direct impact of unsatisfactory drinking water quality on the health of a population. The relationship between sanitary and chemical indicators and the incidence rate for a number of nosological forms has been proven. It is generally accepted that human health is influenced by lifestyle factors (working, living and relaxation conditions), heredity and the ecological condition of the area of residence, including the quality of drinking water. Although it is not possible to differentiate the share of the negative effect caused by the consumption of poor quality drinking water but the incidence of certain nosological forms (cancer of the esophagus, gastrointestinal tract and kidney diseases) in the those regions of the Republic of Dagestan under consideration correlates with the characteristics of drinking water.Conclusion. The problem of pollution of water supply sources for the population in the dynamics of the long-term remains a priority concern. The quality and safety of drinking water are decreasing, which cannot but have a negative impact on public health. Correlation linkages between indicators of drinking water quality and oncological morbidity of the population were also established in indicators below the maximum permissible concentrations, which corresponds to a typical logistic model of causal relationships and serves as evidence of the high dependence of health disorders on chemical contamination of water supply sources. 

scholarly journals Microbiological Indicators of the Quality of River Water, Used for Drinking Water Supply

2016 ◽  
Vol 25 (2) ◽  
pp. 511-519 ◽  
Author(s):  
Łukasz Augustyn ◽  
Anna Babula ◽  
Jolanta Joniec ◽  
Jadwiga Stanek-Tarkowska ◽  
Edmund Hajduk ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
River Water ◽  
Drinking Water Supply ◽  
Microbiological Indicators

scholarly journals Drinking Water Quality Risk Management. Risk Analysis of Nitrogen Groundwater Contamination Using Analytica Software

2019 ◽  
Vol 70 (11) ◽  
pp. 3971-3976
Author(s):  
Alice Iordache ◽  
Alexandru Woinaroschy
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Risk Analysis ◽  
Water Supply ◽  
Drinking Water Supply ◽  
Integrated Method ◽  
System Risk ◽  
Health Quality ◽  
Drinking Water Supply System

Drinking water supply is essential for public health, quality of life, sustainable development of economic activity, and environmental protection. In this context, it is important to ensure continuous improvement of all stages of processes to guarantee water quality and safety [1]. The main objectives of the study are: -development of an integrated method and probable risk analysis for a drinking water supply system; -risk assessment of contamination of raw water with nitrate [2].

Sanitary and epidemiological situation in the Lower Volga Region: problems and solutions

2021 ◽  
pp. 28-34
Author(s):  
Л.В. Боронина
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Supply ◽  
Distribution Networks ◽  
Drinking Water Supply ◽  
Volga Region ◽  
Volga River ◽  
Lower Volga Region ◽  
Lower Volga

Волга почти на всем протяжении от Твери до Астрахани является истощенным водоемом по качественному составу. По Нижневолжскому бассейну ресурс экологически чистой воды составляет не более 3% общих ресурсов поверхностных вод Астраханской области. В связи с этим в Астраханской области проблемы качества питьевой воды обусловлены загрязнением природной воды, неудовлетворительной очисткой ее на водопроводных станциях, вторичным загрязнением в разводящих сетях. Проведен анализ экологического состояния Нижней Волги, а также оценка его влияния на качество питьевого водоснабжения. Применяемые в Астраханской области технологии очистки воды для водоснабжения запроектированы и построены в 1960–70-е годы и не рассчитаны на грязевую нагрузку по качеству и количеству, значительно отличающуюся от современной ситуации. Проведен анализ работы водозаборных и водопроводных очистных сооружений, который показал, что они находятся в крайне неудовлетворительном техническом состоянии и морально устарели. Предложены пути решения вопросов по улучшению качества питьевого водоснабжения с учетом сложившейся кризисной экологической обстановки на Нижней Волге и мирового опыта. Almost along the entire length from Tver to Astrakhan, the Volga River has been a depleted water reservoir in terms of its qualitative composition. In the Lower Volga basin the resource of ecologically clean water is less than 3% of the total surface water resources of the Astrakhan Region. In this regard, drinking water quality problems in the Astrakhan Region have been caused by natural water pollution, poor water treatment at the waterworks, secondary pollution in the distribution networks. The ecological state of the Lower Volga has been analyzed, and its impact on the quality of drinking water supply has been estimated. The technologies of water purification used in the Astrakhan Region for water supply were designed and implemented in the 1960s–70s; they were not designed for the pollution load in terms of the quality and quantity significantly different from the current situation. An analysis of the operation of water intake and water treatment facilities was carried out that showed their extremely unsatisfactory technical condition and obsolescence. The ways of solving the problems of improving the quality of drinking water supply with account of the current critical ecological situation in the Lower Volga Region and world experience, are proposed.

scholarly journals SANITARY AND HYGIENIC STATE OF SOURCES OF DRINKING WATER SUPPLY IN THE REPUBLIC OF TAJIKISTAN AND THE WAYS OF ITS IMPROVEMENT

2019 ◽  
Vol 21 (4) ◽  
pp. 675-682
Author(s):  
Khuseyn Nazarovich Egamnazarov ◽  
◽  
Nargis Buorikovna Bakhtiyorova ◽  
Ikrom Davronzoda ◽  
Kamil Nizamovich Daburov ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Drinking Water Supply ◽  
The Republic
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