FIELD: oil and gas production. SUBSTANCE: before centrifugation, drilling wastes (drilling waste waters and drilling fluids themselves) are treated two times with flocculant using interval between the two treatments for additional treatment by production of interaction of hydrogen peroxide with substance selected from group of water-soluble amino- or boron-, or silicate-containing oxygen compounds with active oxygen level at least 6.8%. EFFECT: increased degree of removal of organics and simplified technology. 1 tbl, 2 ex
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