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.

Discussion on Feed-Water Treatment Technology of Supercritical Unit

2015 ◽  
Vol 1092-1093 ◽  
pp. 831-837
Author(s):  
Guo Hua Lu ◽  
Qiao Ling Peng ◽  
Shun An Cao
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Ph Value ◽  
Operating Efficiency ◽  
Feed Water ◽  
Low Oxygen ◽  
Treatment Technology ◽  
Water Steam ◽  
Water Treatment Technology ◽  
Steam System

The oxygenated feed-water treatment technology of supercritical unit can effectively decrease the corrosion of water-steam system, and thus steam-water quality and operating efficiency are greatly promoted. In view of modes of feed-water treatment technology for supercritical unit, the characteristics of oxide film in thermal system under AVT and OT conditions are compared; and then, the principle of oxygenated feed-water treatment technology was elaborated. Besides, the oxygenated conditions, controlling of water quality, advantages, the relation between formation of oxide scale and oxygen plus are analyzed. Finally, the paper introduced weak oxiding feed-water treatment technology, with the principle of low oxygen and high pH value.

The Status and Development of Water Treatment Technology for Supercritical Unit

2014 ◽  
Vol 940 ◽  
pp. 52-58
Author(s):  
Guo Hua Lu ◽  
Qiao Ling Peng ◽  
Yang Mei ◽  
Zheng Feng Li ◽  
Shun An Cao
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Power Plants ◽  
Present Situation ◽  
Field Investigation ◽  
Feed Water ◽  
Treatment Technology ◽  
The Status ◽  
Treatment Technologies ◽  
Development Prospects

The paper is to study the water treatment technologies for supercritical unit to improve its steam-water quality and ensure safe and economical operation. Based on lots of domestic and foreign literature and field investigation in some typical power plants, the paper summaries present situation and development prospects of the technology and system process of water treatment for supercritical unit, and also compared the technologies, including make-up water, condensate water and feed-water treatment, from theoretical and technical prospective.

scholarly journals Treatment Technology of Microbial Landscape Aquatic Plants for Water Pollution

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Ming Hu ◽  
Lei Li
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Aquatic Plants ◽  
Rapid Development ◽  
Water Bodies ◽  
Control Group ◽  
Human Beings ◽  
Treatment Technology ◽  
Blank Control Group ◽  
Microbial Inoculant

With the rapid development of industrial and agricultural production, the rapid growth of population, and the acceleration of urbanization, the problem of water pollution is becoming more and more serious. Water shortages and pollution disrupt the balance of ecosystems and seriously limit people’s health and rapid economic development. Nowadays, the method of repairing sewage bodies using microbial landscape aquatic plants is attracting more and more attention, and it is a big challenge to maintain the sustainable development of human beings and nature. This paper uses floating rafts to combine microorganisms and landscape aquatic plants to conduct sewage treatment experiments. According to microorganisms, landscape aquatic plants absorb nutrients in the water body, examine the changes in water quality during the restoration of microorganisms’ landscape aquatic plants, and establish the growth of microorganisms’ landscape aquatic plants. The relationship with changes in water quality aims to provide a theoretical basis for the treatment of slow-flowing water bodies such as lakes, reservoirs, large artificial ponds, and rivers. In this paper, the experiments are divided into four groups (A (experimental sewage + microbial inoculant), B (experimental sewage + plant), C (experimental sewage + microbial inoculant + plant), and D (experimental sewage)). It can be divided into the total nitrogen content, total phosphorus content, and COD value data, and chromaticity detection of each group of the test is continuously monitored weekly to comprehensively detect and observe the repair effect on contaminated water bodies. The experiment proved that the water quality of the three treatment groups was significantly clearer than that of the blank control group, and its clarity: microorganism + plant > microorganism > plant > blank control group. This shows that the combination of microorganisms and landscape aquatic plants can effectively reduce the various pollutants contained in sewage and reduce the color of sewage. Treating sewage using plant technology that combines microorganisms is feasible and promising.

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.

scholarly journals Long-Term Drinking Water Quality Assessment Using Index and Multivariate Statistical Analysis for Three Water Treatment Plants of Erbil City, Iraq

2018 ◽  
Vol 2 (2) ◽  
pp. 39-48
Author(s):  
Hayder Mohammed Issa ◽  
Reem Ahmed Alrwai
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Water Supply ◽  
Drinking Water Treatment ◽  
Drinking Water Quality ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Water Treatment Plants

Safe source of drinking water is always considered as an essential factor in water supply for cities and urban areas. As a part of this issue, drinking water quality is monitored via a useful scheme: developing drinking water quality index DWQI. DWQI is preferably used as it summarizes the whole physicochemical and bacteriological properties of a drinking water sample into a single and simple term. In this study, an evaluation was made for three drinking water treatment plants DWTPs named: Efraz 1, Efraz 2 and Efraz 3 that supply drinking water to Erbil City. The assessment was made by testing thirteen physicochemical and two bacteriological parameters during a long period of (2003 – 2017). It has been found that turbidity, electrical conductivity EC, total alkalinity, total hardness, total coliform and fecal coliform have more influence on drinking water quality. DWQI results showed that the quality of drinking water supplied by the three DWTPs in Erbil City fallen within good level. Except various occasional periods where the quality was varying from good to fair. The quality of the drinking water supply never reached the level of marginal or poor over the time investigated. The applied hierarchical clustering analysis HCA classifies the drinking water dataset into three major clusters, reflecting diverse sources of the physicochemical and bacteriological parameter: natural, agriculture and urban discharges.

scholarly journals DEVELOPMENT OF ORGANIZATIONAL AND TECHNOLOGICAL SOLUTIONS FOR RECONSTRUCTION OF WATER TREATMENT FACILITIES

2021 ◽  
Vol 9 (2) ◽  
pp. 26-30
Author(s):  
Svetlana Chutchenko ◽  
Sergej Evtushenko ◽  
Nikolai Djulai
Keyword(s):  
Water Treatment ◽  
Treatment Technology ◽  
Industrial Buildings ◽  
Facilities Design ◽  
Treatment Facilities ◽  
Design Solutions ◽  
New Treatment

The article continues the cycle of works on the preparation of industrial buildings for reconstruction and their examination. In this article, organizational and technological solutions are systematized, which are mandatory for use in the reconstruction of water treatment facilities. Design solutions for the reconstruction of treatment facilities are based on a new treatment technology.

KONDISI KUALITAS AIR SUMUR PENDUDUK DI WILAYAH GENANGAN SEMBURAN LUMPUR SIDOARJO

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Satmoko Yudo
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Environmental Damage ◽  
Well Water ◽  
Treatment Technology ◽  
Treatment Technologies ◽  
Alternative Water ◽  
The Impact ◽  
Mud Flow

Sidoardjo mudflow has been occuring since 2006. This disaster is the first incident in Indonesia which has such a broad impact, like the settlements, fields, roads and other buildings submerged, resulting in enormous losses. Besides damaging the existing infrastructure in the area, the mud flow is also causing environmental damage, particularly contamination of ground water community. To find out how much the impact of the mud flow to the water quality community, carried out observations and surveys of well water quality conditions of the communities around the location of the mud puddles. In this paper provided an alternative drinking water treatment technology can be applied in this area. Keywords: Lapindo mud, environmental degradation, pollution of well water quality, alternative water treatment technologies

Pipe material and water quality in a holistic view

2001 ◽  
Vol 1 (3) ◽  
pp. 1-10
Author(s):  
T. Hedberg
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Distribution Networks ◽  
Pipe Material ◽  
Treatment Technology ◽  
Water And Wastewater Treatment ◽  
Holistic View ◽  
General Terms ◽  
Research Activities

The new trends in societies towards sustainable development have necessitated a new way of thinking regarding water treatment, the distribution of drinking water and wastewater treatment. A process of implementing new European water directives is ongoing and the consequences and need for coordination of these changes are discussed. Raw water qualities, water treatment technology and drinking water quality have impacts on water quality deterioration in the distribution networks that negatively affect the possibilities for recycling sewage sludge containing valuable nutrients. Measures for coping with these issues are discussed in general terms and suggestions for future strategies and research activities are given.

Water quality considerations in developing a new resource for water supply within the midlands of England

1998 ◽  
Vol 38 (6) ◽  
pp. 201-208 ◽  
Author(s):  
D. J. Smith ◽  
S. Crymble
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Water Supply ◽  
Treatment Process ◽  
Water Quality Monitoring ◽  
Monitoring Programme ◽  
Quality Monitoring ◽  
Water Treatment Process ◽  
Increasing Demand ◽  
Major Consideration

Increasing demand for limited water resources within the Midlands of England resulted in a lower quality river being considered for water supply in an area of high urban and rural population. A comprehensive water quality monitoring programme was undertaken on the river to compare its quality with other sources used for water supply. Concurrent with the monitoring programme a series of laboratory scale trials began to assess how the river water could be treated, and the costs involved. A major consideration was the need to provide treated water by the summer of 1997, which precluded a complete new water treatment process from being designed. The paper outlines the results from the monitoring programme, including some of the problem parameters such as pesticides at over 10 ug/l, and how some of the sources of these pollutants were identified. It also describes the treatment trials and explains how a water treatment process was developed which utilises disused gravel workings to provide bankside storage and a combination of powdered and granular activated carbon to remove organic pollutants.

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