Tag:biological removal of nitrogen and phosphorus

№10|2010

WASTEWATER TREATMENT

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UDC 628.35:661.5.63

KOZLOV M. N., Kharkina O. V., Pakhomov A. N., Streltsov S. A., Khamidov M. G., Ershov B. A., Belov N. A.

Experience of Operation of Facilities of Wastewater Biological Treatment for Nitrogen and Phosphorus Compounds

Summary

Introduction of technologies of wastewater treatment for nitrogen and phosphorus compounds is a priority way of development and reconstruction of treatment facilities of the MSUE Mosvodokanal. The technology of acidification of raw sludge of primary sedimentation plants makes it possible to increase the concentration of readily oxidizable organic compounds in wastewater which are necessary for organization of the process of advanced biological removal of phosphorus. Acidification of primary sludge of wastewater was introduced on industrial scale at the Lyubertsy treatment facilities of Moscow in 2009; it makes it possible to ensure the high quality of water treated at the block of biogenic elements removal of total capacity of 500 000 m3/day.

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№10|2010

WASTEWATER TREATMENT

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UDC 628.33:62-278

KOZLOV M. N., Nikolaev Yu. A., Khramenkov S. V., Kharkina O. V.

Perspectives of Introduction of Membrane Technique at Treatment Facilities of Moscow

Symmary

Studies of the membrane technique of treatment of low-concentrated municipal wastewater at a pilot unit of up to 5 m3/day capacity have been carried out. As a result, high quality of treated water concerning suspended particles and biogenic elements has been obtained, resistance to volley entries of industrial wastewater and high efficiency of water disinfection have been reached. Results of pilot tests have made it possible to appreciate the membrane biotechnologies as perspective for realization at Moscow treatment facilities. Advantages of the technology with the use of membrane bioreactors: considerable reduction in volumes of facilities and spaces occupied by them owing to the high concentration of activated sludge, possibility of a higher load per a volume unit and also significant decrease in quantity of excessive activated sludge. Membrane bioreactor technologies are one of the perspectives of development of treatment facilities under the conditions of limited areas.

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