%0 Journal Article %T On Improving the Eco-Efficiency of Wastewater Treatment Technologies %A Borisova, O.. %A Shubov, L.. %A Doronkina, I.. %K waste, engineering protection of the environment, wastewater, flotation %J Services in Russia and abroad %D 2014 %N 8 %P 8 %I Russian State University of Tourism and Service