TY JOUR TI OPTIMIZATION OF TECHNOLOGICAL PROCESS OF SEWAGE TREATMENT FACILITIES OF OIL AND GAS ENTERPRISES KW oil and gas industry KW oil slime accumulation KW screw horizontal sedimentation centrifuge KW continuous separation of oil slimes JO Vestnik of Astrakhan State Technical University AU Panasenko, K.. AU Artemieva, N.. PY 2015 IS 2015 PB Astrakhan State Technical University