TY JOUR TI OPTIMIZATION OF TECHNOLOGICAL PROCESSES OF THE SEWAGE TREATMENT PLANTS OF THE OIL REFINERY TO REDUCE THE OIL SLUDGE VOLUMES KW oil sludge accumulation KW sewage treatment facilities KW oil traps KW adsorption refining JO Vestnik of Astrakhan State Technical University AU Burnashev, R.. AU Artemieva, N.. AU Maksimenko, Y.. PY 2017 IS 2017 PB Astrakhan State Technical University