Tag:chlorine consumption



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UDC 628.161.3

Troshkova E. A., Zhukova V. I., Alekseev S. E.

The use of ammonium sulfate in water treatment at the Metelevskii water treatment facilities of Tumen


The purpose of the work was increasing the efficiency of water disinfection technology at the Metelevskii water treatment facilities of Tumen without abandoning liquid chlorine use. The subject of the studies was the process of disinfection of the Tura river water and water after purification at the water intake near Metelevo settlement upstream of Tumen. For water disinfection at the municipal water treatment plants chlorine is used. The Tura river water contains high concentrations of organic and inorganic pollutants that cause high chlorine consumption; depending upon the season chlorine dosage va­ries from 3.5 to 17 mg/l. Therefore to ensure reliable disinfection of the water the use of high chlorine dosages is required. Besides, the total length of water mains and municipal distribution pipelines exceeds one thousand kilometers; whereas long-term operation caused their poor condition. Another problem arising in the process of river water treatment are specific odors (to 5 points) emerging occasionally in raw water that strengthen during disinfection with chlorine. Beginning from 2004 the specialists of the Metelevskii water treatment facilities have carried out laboratory and preparatory works on disinfecting river water with chlorination and ammoniation; and in accordance with the results – pilot tests. The main technical and technological aspects of using chlorammoniation at the Tumen water treatment facilities are considered. The results confirmed the efficiency of the given method of water disinfection. In addition, the water quality in the municipal distribution network was preserved, whereas the concentration of chlororganic compounds lowered.

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