TY JOUR TI Efficiency Increase Method оf Biological Treatment оf Optical Mechanics Production Sewage KW biological sewage treatment KW heavy-metal ions KW synthetic surface active substances KW local processing. JO Safety in Technosphere AU Sirotkin, A.. AU Suslova, S.. AU Khuzyasheva, D.. PY 2013 IS 2 PB INFRA-M Academic Publishing LLC.