Water Supply Development for Membrane Water Treatment Facilities

2018 ◽  
Author(s):  
Thomas M. Missimer ◽  
Ian C. Watson
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Treatment Facilities

scholarly journals MODERNIZATION OF WATER SUPPLY SYSTEMS FROM SURFACE SOURCES

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.

On the introduction of new sanitary and epidemiological requirements for drinking water supply

2021 ◽  
pp. 26-30
Author(s):  
Ю.А. Егорова ◽  
П.Г. Быкова ◽  
Л.А. Таловыря ◽  
Т.А. Стрелкова ◽  
О.И. Нестеренко
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Supply ◽  
Transition Period ◽  
Transitional Period ◽  
Polluted Water ◽  
Domestic Water ◽  
Urban District ◽  
Standard Design ◽  
Treatment Facilities

Основным источником водоснабжения городского округа Самара является Саратовское водохранилище. Городские водопроводные очистные сооружения построены по типовым проектам и рассчитаны на осветление и обеззараживание умеренно загрязненной воды. В последние годы в воде водоисточника наблюдается резкое снижение концентрации взвешенных веществ и увеличение содержания органических загрязнений (в основном природного происхождения). При низкой температуре воды, высоких показателях цветности и перманганатной окисляемости возникает необходимость в постоянном контроле оптимальных доз реагентов с целью предотвращения образования в очищенной воде остаточного алюминия и перманганатной окисляемости, превышающих значения ПДК в соответствии с СанПиН 2.1.4.1074-01. Постановлением Главного санитарного врача РФ № 3 от 28 января 2021 г. утверждены и с 1 марта 2021 г. действуют в Российской Федерации новые санитарные правила и нормы: СанПиН 2.1.3684-21 и СанПиН 1.2.3685-21, требующие более жесткого подхода к качеству очищенной воды. Срок действия данных СанПиН – до 1 марта 2027 г., однако в них отсутствует переходный период для предприятий, эксплуатирующих системы водоснабжения и водоотведения, при организации и проведении санитарно-противоэпидемиологических (профилактических) мероприятий по приведению воды питьевого и хозяйственно-бытового водоснабжения в соответствие с требованиями СанПиН 2.1.3684-21 и СанПиН 1.2.3685-21. Водопроводные очистные сооружения г. Самары в переходный период нуждаются в модернизации, а некоторые – в реконструкции. Для проведения исследований, указанных в нормативных документах, необходимо обновить оборудование производственных лабораторий и расширить область их аккредитации. Оснащение аккредитованных лабораторий современными средствами всестороннего контроля качества питьевой воды позволит повысить эффективность и надежность результатов анализа. The main source of water supply for the urban district of Samara is the Saratov reservoir. The municipal water treatment facilities were built according to the standard design and intended for clarification and disinfection of moderately polluted water. In recent years, a sharp decrease in the concentration of suspended solids and an increase in the concentration of organic pollutants (mainly of natural origin) have been observed in the water of the source. At low water temperature, high color indices and permanganate index, the need arises for continuous monitoring the optimal doses of chemicals in order to prevent the formation of residual aluminum in the purified water and permanganate index exceeding the MPC values ​​in accordance with SanPiN 2.1.4.1074-01. By Decree of the RF Chief Sanitary Officer No. 3 of January 28, 2021, new sanitary rules and regulations have been approved and effective in the Russian Federation since March 1, 2021: SanPiN 2.1.3684-21 and SanPiN 1.2.3685-21 that require a more stringent approach to the quality of the purified water. The validity period of the current SanPiNs is until March 1, 2027; however, they do not provide for a transitional period for the operators of water supply and wastewater disposal systems that have to arrange and conduct epidemiological (preventive) measures to ensure drinking and domestic water supply meeting the requirements of SanPiN 2.1.3684-21 and SanPiN 1.2.3685-21. The water treatment facilities in Samara in the transition period need upgrade, and some of them need reconstruction. To carry out the research specified in the regulatory documents, updating the equipment of production laboratories and expanding the scope of their accreditation are needed. Equipping accredited laboratories with advanced means of comprehensive monitoring of drinking water quality will improve the efficiency and reliability of the analysis results.

Initiatives for utilizing renewable energy in water supply treatment

2016 ◽  
Vol 11 (2) ◽  
pp. 365-372
Author(s):  
Takashi Kobayashi
Keyword(s):  
Renewable Energy ◽  
Control System ◽  
Water Treatment ◽  
Power Consumption ◽  
Water Supply ◽  
Supply System ◽  
Public Water Supply ◽  
Hydropower Generation ◽  
Treatment Facilities ◽  
System Power

Maintaining a safe and reliable public water supply uses massive amounts of energy, prompting calls for energy saving measures. The Yokohama Water Works Bureau has established the goal of building a water supply system that is environmentally friendly by implementing a variety of initiatives, starting with efforts in renewable energy. These efforts have featured installing solar power and micro hydropower generation facilities at our purification plants and distribution reservoirs. The Yokohama water treatment facilities include purification plants based on gravity systems (Nishiya and Kawai plants) and pumped systems (Kosuzume plant). As the purification plants employing gravity systems place a smaller load on the environment, we use them as effectively as we can. When it was time to refurbish the distribution pumps, we reviewed the pump control system and identified initiatives for reducing pumped system power consumption.

Управление технологическими процессами на водозаборах г. Новокузнецка

2020 ◽  
Author(s):  
N. Dobrynina ◽  
O. Karkanitsa
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Water Purification ◽  
Water Source ◽  
Filter Material ◽  
Technical Condition ◽  
Maximum Efficiency ◽  
Automation System ◽  
Treatment Facilities ◽  
Processing And Storage

За последние годы на действующих водозаборах г. Новокузнецка реализован комплекс мероприятий с использованием современного оборудования и технологий, позволивших значительно повысить надежность и эффективность работы системы водоснабжения. Отмечено, что для достижения максимальной эффективности работы водоочистных станций необходимо постоянно совершенствовать технологию очистки воды. Самым приемлемым и экономичным решением этой задачи является исследовательская работа в технологической лаборатории Драгунского цеха водоснабжения. Изучены фильтрационные свойства материалов (керамзит, горелые породы, альбитофир, кварцит и др.), что позволило выбрать вид фильтрующего материала и определить его оптимальный фракционный состав для загрузки фильтров на водоочистных станциях. Определены наиболее эффективные реагенты для очистки воды источника водоснабжения города реки Томи. Это коагулянт оксихлорид алюминия и флокулянты катионного типа. Внедрение системы комплексной автоматизации технологического процесса позволило обеспечить контроль технического состояния оборудования и его технологических параметров, а также сбор, обработку и хранение данных.In recent years, a set of measures has been implemented at the operating water intakes of the city of Novokuznetsk using advanced equipment and technologies that have provided for improving the integrity and efficiency of the water supply system. It was noted that in order to achieve maximum efficiency of the water treatment facilities, continuous improving the technology of water purification is required. The most acceptable and economical solution to this problem is carrying out research works at the technological lab of the Dragun water supply facilities. The filtration properties of materials (expanded clay, burned rocks, albitophyre, quartzite, etc.) were studied that resulted in choosing the type of filter material and determining its optimal grain particle size for loading filters at the water treatment facilities. The most effective chemicals for water purification from the local water source, the Tom River, were identified. These are aluminum oxychloride coagulant and cationic flocculants. The introduction of a comprehensive process automation system provided for the control of the technical condition of the equipment and its process parameters, as well as for the data acquisition, processing and storage.

scholarly journals New technological solutions for water treatment systems in modern conditions

2021 ◽  
pp. 201-209
Author(s):  
Ye. M. Matseluk ◽  
D. V. Charnyy ◽  
V. D. Levytska ◽  
S. V. Marysyk
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Water Supply ◽  
Chlorine Dioxide ◽  
Water Bodies ◽  
Organic Component ◽  
High Concentration ◽  
Treatment Technology ◽  
Treatment Facilities ◽  
Purification Of Water

The current state of water quality formation in surface water bodies, which serve as sources of drinking water supply in the Dnieper river basin, was considered. The water treatment technologies currently used in Ukraine, were analyzed. The inconsistency of these technologies with the current water quality in these sources of water supply was established, as these technologies are not quite suitable for the purification of water with a significant organic component of any genesis. It was found that one of the main factors that influences the quality of water in water bodies in the warm period is phytoplankton, especially during their "flowering. The factors accompanying this phenomenon were shown, the development trends and their influence on the operating water treatment systems were analyzed. It was considered the feasibility of using reagents with the effect of oxidation of the organic component of the source water, in particular chlorine dioxide, the use of which is effective in disinfection of chlorine-resistant microbiota and phenols oxidations. Moreover, in the conditions of the expected increase in the concentration of mycocystins, chlorine dioxide can be, by analogy with ozone, a fairly effective oxidant of these toxins with a prolonged disinfection effect. The potential development areas of water treatment systems by intensifying bio-physico-chemical processes on the basis of the existing typical capacitive and package units of water treatment plants are given. The perspective areas of scientific and technological developments for substantiation of effective solutions on modernization of existing water treatment facilities were established in these conditions, namely it is reasonable to consider only those solutions, which provide effective purification of water with high concentration of phytoplankton without comprehensive or radical change of water treatment technology. That is, these approaches should make maximum use of existing treatment facilities, either by their reconstruction, or with the use of new reagents, or a combination of both.

scholarly journals Forecasting and Regulating of the Natural Organic Matter in the Volga Water Supply Source of Moscow

2016 ◽  
pp. 48
Author(s):  
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Water Supply ◽  
Natural Organic Matter ◽  
Supply System ◽  
Water Supply System ◽  
Water Color ◽  
Supply Source ◽  
Ivankovo Reservoir ◽  
Treatment Facilities

The main regularities of water color and permanganate oxidizability transformation in the Volga water supply source of Moscow reservoir system have been found. Regularities of the natural organic matter content decrease in terms of water color and permanganate oxidizability within individual segments of the water supply system. The most intensive organic matter transformation within the system reservoirs occurs in the slow-flow Uchinsk reservoir where the color and permanganate oxidizability values maximum is observed during spring period. On the basis of the many-year observations results obtained in the water supply system water bodies a scheme of statistic forecasting of water color and oxidizability at water treatment facilities intake points with tree months lead time has been developed. The forecast is based on multiple linear regression equation linking the organic matter values in the Ivankovo reservoir tributaries and the same at the water treatment facilities at the closure link of the system (Uchinsk reservoir). The carried out comparison of the forecast results with the independent observation data shown a quite satisfactory agreement between the forecasted and observed organic matter values. A possibility to control the Volga River water color with low-color waters discharges from Vazuza reservoir was demonstrated with a simple balance model. As a result of the model calculations we obtained a nomogram enabling to compute the color decrease in a tribute to Ivankovo reservoir in dependence on the color difference between the Volga water and waters discharged from Vazuza reservoir provided we have pre-set proportion of water flow from these sources.

The new technology of waste water treatment by using bioreactors with bio membranous movable bed – biochips

2020 ◽  
Vol 10 (3) ◽  
pp. 276-292
Author(s):  
Maria Y. Savostyanova ◽  
◽  
Lidia А. Norina ◽  
Arina V. Nikolaeva ◽  
◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Water Resources ◽  
Waste Water Treatment ◽  
Combined Treatment ◽  
Research Work ◽  
Pollution Level ◽  
Waste Waters ◽  
Treatment Facilities ◽  
Movable Bed

Retaining of water resources quality is one of the global ecological problems of the modern time. The most promising direction in solving the problem of water resources protection is the reduction of negative environmental influence of waste water from production facilities by upgrading the existing water treatment technologies. To treat utility water, technical and rain water from site facilities of Transneft system entities, the specialists developed and approved standard technological diagrams, which are used in producing treatment facilities. The standard technological diagrams provide for all necessary stages of waste water treatment ensures the reduction of pollution level to normal values. However, during operation of treatment facilities it was established, that to ensure the required quality of waste water treatment with initially high levels of pollution, the new technological solutions are necessary. The author presents the results of scientific-research work, in the context of which the best affordable technologies were identified in the area of the treatment of waste water with increased content of pollutants and non-uniform ingress pattern. On the basis of the research results the technical solutions were developed for optimization of operation of existing waste water treatment facilities by means of using combined treatment of technical and rain waters and utility waste waters and applying bioreactor with movable bed – biochips. The use of bioreactor with movable bed allows the increase in the area of active surface, which facilitates increase and retention of biomass. Biochips are completely immersed into waste waters, and biofilm is formed on the entire volume of immersion area, facilitating retention of biomass and preventing formation of sediments. Due to mixing the floating device with biofilm constantly moves along the whole area of bioreactor, and, in doing so, speeds up biochemical processes and uniformity of treatment. The advantages of a bioreactor with movable bed – its active sludge durability against increased and changing pollutant concentrations, change of waste water temperature and simplicity of application – ensured the possibility of its use for blending utility waters, technical and rain waters.

APPLICATION OF SODA IN STABILIZATION WATER TREATMENT IN REVERSE CYCLES OF WATER SUPPLY OF GAS-CLEANED UNITS OF BOFS

2019 ◽  
pp. 51-60
Author(s):  
S.I. Epshtein ◽  
◽  
S.E. Nikulin ◽  
Yu.A. Shliakhova ◽  
A.I. Kondratenko ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Supply
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