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UDC 628.355.2

Nikolaev Yu. A., KAZAKOVA E. A., GRACHEV V. A., Kevbrina M. V., Dorofeev A. G., Aseyeva V. G., Akmentina A. V.

Biological treatment of municipal wastewater and return flows with the use of granulated sludge

Summary

The experience of aerobic granulated activated sludge formation in the laboratory batch reactor by sedimentation selection with the use of flocculant is described. The sludge is used in the process of low concentrated municipal wastewater and sludge dewatering filtrate (centrate) treatment. The developed technologies of granulated sludge formation provide for the intensification of the wastewater treatment processes; and hence the reduction of the treatment facilities footprint is ensured alongside with the improvement of their operation, reliability and efficient performance.

Key words

wastewater , biological treatment , sludge index , granulated activated sludge , phosphate accumulating organisms