Abstract
The purpose of a technological research is the development of a technology that would allow eliminating the discharge of untreated washing water from a water station in Omsk into the Irtysh, with their repeated use. The paper presents the results of a technological research, which made it possible to determine the optimal technology option for reuse of wash water filters. The studies were carried out by the trial coagulation method, introducing a different amount of contaminated wash water from 10 to 30% into the initial river water and the reagents used in the waterworks. When the combined purification of river and untreated washing water, the turbidity in the settling process decreases to 4.35 mg / l. The efficiency of purification increases with an increase in the amount of raw washing water also increases up to 30%. The technological solutions adopted on the basis of the conducted studies formed the basis for the design documentation for the facilities aimed at developing the re-use of wash water from the Omsk waterworks. The facilities have been built and are being successfully operated now. The proposed solutions made it possible to reduce the intake of water from the source by 10-16.5% and to eliminate the discharge of the contaminated wastewater from the station into the river of Irtysh up to a volume of 51 thousand m3/day.
Highlights
The paper presents the main stages of an integrated approach for solving the problem of pollution of a water supply source with the discharge waters coming from a waterworks station
The selected samples of washing water filters (WWF) were allowed to stand for 1 hour, the turbidity of the water was determined by the photometric method according to a standard procedure
Studies on the effect of quality and quantity of WWFs when they were combined with river water on the process of water treatment were carried out under the same conditions as in the purification of river water
Summary
The paper presents the main stages of an integrated approach for solving the problem of pollution of a water supply source with the discharge waters coming from a waterworks station. The most relevant solution for waterworks is in large cities, especially when washing and slurry waters are diverted to a water body [1]. This situation creates a significant negative impact on surface water sources due to the introduction of anthropogenic pollution [2, 3]. The problem is solved by cleaning the washing water to the quality of drinking water [5, 6]
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