TY JOUR TI THE INTRODUCTION OF HEAVY OIL RESIDUES INTO FUEL, AS ONE WAY TO REDUCE THE NEGATIVE IMPACT ON THE ECOSYSTEM KW utilization of oil-containing waste KW oil sludge. JO Modern Technologies and Scientific and Technological Progress AU Kuzora, I.E. AU Simonova, E.V. AU Uhanev, S.A. PY 2020 IS 2020 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»