Assessment of Ecological Safety in Zones of Influence of Water Intake Technological Complex of Multipurpose Water Supply Systems

The paper is devoted to the problem of optimal design, construction and operation of water supply systems and their elements. The key element of the system is a water well. The quality of its design and construction determines the operation of the water intake as a whole. Disadvantages in the construction of a well lead to disruption of the entire water supply system of a particular object. The paper proposed a methodology for selecting the optimal diameter and length of the well filter of a water well. Based on the methodology, an example of filter parameters selection for hydrogeological conditions of the city of Kursk is given. The above calculation showed that the use of the entrance velocity criterion in the design of wells can significantly reduce the cost of well construction while ensuring the design flow rate and allowable lowering of the water level. The cost of the filter, depending on the well design, is 20-30% of the total price for its construction. The most important filter parameters affecting the cost of a well are its length and diameter. Justifying the minimum diameter of the filter that ensures the designed water intake and allowable dewatering can significantly reduce the cost of the well, taking into account the fact that modern pumping equipment allows the use of columns of small diameter above the filter.

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MODERNIZATION OF WATER SUPPLY SYSTEMS FROM SURFACE SOURCES

Problems of Water supply Sewerage and Hydraulic ◽

10.32347/2524-0021.2021.37.74-83 ◽

2021 ◽

pp. 74-83

Author(s):

Victor Khoruzhy ◽

Tetіana Khomutetska ◽

Igor Nedashkovskіy

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Water Supply ◽

Water Intake ◽

Ecological Condition ◽

Mineral Fertilizers ◽

Water Supply Systems ◽

Treatment Technologies ◽

Treatment Facilities ◽

Supply Systems

Surface water bodies, which are sources of drinking water supply, receive a significant amount of pollution from wastewater. This negatively affects the ecological condition of water resources and poses a threat to the health and sanitary well-being of the population. The main pollutants of surface sources are: sewage of economic-fecal and industrial sewage, which contain organic pollutants, surfactants, heavy metal ions; oil products coming from industrial sites and urban areas; effluents from livestock farms and storage ponds of production waste; washing of mineral fertilizers and pesticides from agricultural lands. Adjustment of surface springs additionally affects the deterioration of water quality in them. Therefore, existing water treatment technologies may not always provide the required degree of drinking water purification. According to monitoring studies, more than 38% of water samples taken at centralized water supply facilities did not meet regulatory requirements. This situation encourages the search for ways that would create conditions for more efficient operation of water supply systems. Modernization of existing water supply facilities and application of new water treatment technologies can help solve the problem. The article illustrates constructive schemes of shore and channel water intake and treatment facilities, the use of which makes it possible to reduce the dirt retention load on the main treatment facilities, increase the reliability of fish fry protection and improve the ecological condition of reservoirs at water intake sites. For effective removal of organic matter at water treatment plants, it is advisable to use bioreactors and contact-clarifying filters. Such solutions allow not only to increase the productivity of the water treatment plant, but also significantly reduce its construction cost, simplify the operation of facilities and reduce annual operating costs.

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Assessing health risks associated with drinking water quality (on the example of regions in Bashkortostan where oil fields are located)

Health Risk Analysis ◽

10.21668/health.risk/2021.2.03 ◽

2021 ◽

pp. 33-40

Author(s):

L.R. Rakhmatullina ◽

◽

R.A. Suleymanov ◽

T.K. Valeev ◽

Z.B. Baktybaeva ◽

...

Keyword(s):

Water Quality ◽

Drinking Water ◽

Water Supply ◽

Water Intake ◽

Health Risks ◽

Drinking Water Quality ◽

Oil Fields ◽

Laboratory Research ◽

Water Supply Systems ◽

Supply Systems

Providing population with drinking water conforming to all hygienic standards is a pressing issue on territories where oil fields are located. In our research we focus on assessing water supply sources located in areas with oil fields and health risks for people who consume water from centralized water supply systems aimed at providing drinking water and water for communal use. Our research goal was to hygienically assess health risks for people living in areas where oil fields were located in Bashkortostan; these health risks were caused by people consuming water from centralized water supply systems. Our analysis was based on data obtained via laboratory research performed by «Bashkommunvodokanal» water supply facility and Bashkortostan Center for Hygiene and Epidemiology; the data were collected in 2016–2018 in Chishminskiy and Dablekanovskiy districts. Risks associated with drinking water quality were assessed taking into account all the requirements fixed in the Guide R 2.1.10.1920-04. Organoleptic risks related to water olfactory-reflex properties were assessed according to procedures fixed in the Methodical Guidelines MR 2.1.4.0032-11. Overall carcinogenic health risk assessed in Chishminskiy and Davlekanovskiy districts was higher than maximum permissible level due to chromium6+, DDT, lindane and arsenic detected in drinking water. Population carcinogenic risks amounted to 7 additional cases for people who consumed water supplied via water intake in Alkino-2 settlement; 69 additional cases, Isaakovskiy water intake; 76 additional cases, Kirzavodskoy water intake. Results obtained via non-carcinogenic risk assessment performed for all examined territories indicate that diseases might occur in the hormonal system (HQ =3.04–4.56), liver (HQ =2.3–3.83), and kidneys (HQ =1.47–2.45). The highest non-carcinogenic risks were detected for people who took water from Kirzavodskoy water intake in Davlekanovskiy district. We also detected unacceptable organoleptic risk (higher than 0.1) caused by excessive water hardness in Chishminskiy district. All the obtained results call for developing and implementing a set of activities aimed at reducing health risks for population.

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Reconstruction of the Water Supply to the City of Igarka of Krasnoyarsk Region

Journal of Siberian Federal University Engineering & Technologies ◽

10.17516/1999-494x-0299 ◽

2021 ◽

pp. 187-197

Author(s):

Gregory V. Krasavin ◽

Anatoly I. Matiushenko

Keyword(s):

Water Supply ◽

Water Intake ◽

Supply System ◽

Water Supply System ◽

Water Supply Systems ◽

Far North ◽

Krasnoyarsk Region ◽

Supply Systems ◽

The City

Some features of use of water supply systems in the conditions of the Far North are stated. the considered water supply system in Igarka prior to the reconstruction. The reasons for the need for reconstruction of existing water intake facilities are presented. The composition of the reconstructed water intake facilities is described. The experience of operation of reconstructed water supply facilities in Igarka is summarized

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Assessing health risks associated with drinking water quality (on the example of regions in Bashkortostan where oil fields are located)

Health Risk Analysis ◽

10.21668/health.risk/2021.2.03.eng ◽

2021 ◽

pp. 33-40

Author(s):

L.R. Rakhmatullina ◽

◽

R.A. Suleymanov ◽

T.K. Valeev ◽

Z.B. Baktybaeva ◽

...

Keyword(s):

Water Quality ◽

Drinking Water ◽

Water Supply ◽

Water Intake ◽

Health Risks ◽

Drinking Water Quality ◽

Oil Fields ◽

Laboratory Research ◽

Water Supply Systems ◽

Supply Systems

Providing population with drinking water conforming to all hygienic standards is a pressing issue on territories where oil fields are located. In our research we focus on assessing water supply sources located in areas with oil fields and health risks for people who consume water from centralized water supply systems aimed at providing drinking water and water for communal use. Our research goal was to hygienically assess health risks for people living in areas where oil fields were located in Bashkortostan; these health risks were caused by people consuming water from centralized water supply systems. Our analysis was based on data obtained via laboratory research performed by «Bashkommunvodokanal» water supply facility and Bashkortostan Center for Hygiene and Epidemiology; the data were collected in 2016–2018 in Chishminskiy and Dablekanovskiy districts. Risks associated with drinking water quality were assessed taking into account all the requirements fixed in the Guide R 2.1.10.1920-04. Organoleptic risks related to water olfactory-reflex properties were assessed according to procedures fixed in the Methodical Guidelines MR 2.1.4.0032-11. Overall carcinogenic health risk assessed in Chishminskiy and Davlekanovskiy districts was higher than maximum permissible level due to chromium6+, DDT, lindane and arsenic detected in drinking water. Population carcinogenic risks amounted to 7 additional cases for people who consumed water supplied via water intake in Alkino-2 settlement; 69 additional cases, Isaakovskiy water intake; 76 additional cases, Kirzavodskoy water intake. Results obtained via non-carcinogenic risk assessment performed for all examined territories indicate that diseases might occur in the hormonal system (HQ =3.04–4.56), liver (HQ =2.3–3.83), and kidneys (HQ =1.47–2.45). The highest non-carcinogenic risks were detected for people who took water from Kirzavodskoy water intake in Davlekanovskiy district. We also detected unacceptable organoleptic risk (higher than 0.1) caused by excessive water hardness in Chishminskiy district. All the obtained results call for developing and implementing a set of activities aimed at reducing health risks for population.

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