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- Article name
- Methods to reduce the negative effect of water from sludge dewatering on biological treatment
- Authors
- VOLKOVA V. N., , vladavibi@bk.ru, Federal State Autonomous Educational Institution of Higher Professional Education "Far Eastern Federal University" (FEFU), Polytechnic Institute, Vladivostok, Russia
KUNDENOK S. B., , 14sveta65@mail.ru, Federal State Autonomous Educational Institution of Higher Professional Education "Far Eastern Federal University" (FEFU), Polytechnic Institute, Vladivostok, Russia
GOLOVIN V. L., , golovin.vl@dvfu.ru, Federal State Autonomous Educational Institution of Higher Professional Education "Far Eastern Federal University" (FEFU), Polytechnic Institute, Vladivostok, Russia
- Keywords
- sewage treatment facilities / mechanical dewatering of sludge / return water / coagulation / phosphates / ammonium
- Year
- 2021 Issue 4 Pages 17 - 22
- Code EDN
- Code DOI
- 10.52190/2073-2589_2021_4_17
- Abstract
- Methods of purification of the sewage treatment plants (WWTP) return water are considered. A new composite composition has been developed for the reagent precipitation of ammonium and phosphates from water, which is formed as a result of thickening and dewatering of sludge. On the basis of the obtained experimental data, a technological scheme for the treatment of water formed after mechanical dewatering of excess activated sludge and sludge from the operation of treatment plants at biological wastewater treatment plants has been developed. The developed technological solution allows to exclude the effect of aluminum on activated sludge and to minimize the negative effect of ammonium and phosphates, with minimal construction and operating costs. The proposed cleaning method is applicable to both existing treatment facilities and newly designed ones.
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