METHOD OF TREATING WASTE WATERS TO REMOVE OIL PRODUCTS Russian patent published in 2004 - IPC

Abstract RU 2223920 C1

FIELD: waste water treatment. SUBSTANCE: waste water undergoes filtration through silica gel-based sorbent until sorption equilibrium is attained. Silica gel (96.5-98.0%) for sorbent is fraction 3.0-5.0 mm modified with oligoethylhydroxylsilane (2.0-3.5%) at 160-200 C. Waste water treatment is carried out at 5 to 95 C and filtration velocity is 23-29 m/sec. EFFECT: increased degree of clearing and enabled its use at elevated temperature and high filtration velocity. 4 tbl

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RU 2 223 920 C1

Authors

Aminov O.N.

Fozekosh D.I.

Pavlenko V.I.

Jastrebinskij R.N.

Dates

2004-02-20—Published

2002-09-02—Filed