%0 Journal Article %T Research into transient periodic processes of wastewater cyclotank aerobic treatment with biological sludge %A Lebedev, V.. %A Gubanov, N.. %A Tyger, L.. %K aeration, aerotank, biological filter, biological treatment, sludge, communal facilities, cyclotank %J Services in Russia and abroad %D 2014 %N 8 %P 12 %I Russian State University of Tourism and Service