Korniienko, I. M.; Voloshyn, M. D.; Polianchykov, O. I. COMPARATIVE CHARACTERISTIC OF BIOSORPTION PROCESSES AND BIOACCUMULATION OF HEAVY METALS IN HYDROBIONTS HERPOBDELLA OCTOCULATA, ASELLUS AQUATICUS AND ACTIVE SLUDGE REMOVED FROM TREATMENT FACILITIES IN DNEPRODZERZHINSK. STP 2005, 28-31.