Purification of effluents to remove tars and oils in radial settling tanks

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Coke Chem., USSR (Engl. Transl.); (United States)

OSTI ID:6155276

Pimenov, I V; Derbysheva, E K; Kopytova, L A; Kagasov, V M

The first stage in the purification of effluents at the biochemical facilities of carbonization plants is clarification, i.e., removal of insoluble impurities (suspended materials, tars, and oil). Radial above-ground settling tanks (of the horizontal type) are widely used for clarification at such facilities. The advantages of such settling tanks lie in the fact that the equipment is simple and reliable, while the above-ground location considerably simplifies repair. This article gives the results of an investigation of the operation of primary settling tanks functioning as components of biochemical purification facilities. It was shown that effluent clarification is affected by effluent composition and temperature, the composition and size of the tar and oil particles, and the settling time. The light-oil recovery unit has been modified to improve primary-settling-tank operation.

• OSTI ID: 6155276
• Journal Information: Coke Chem., USSR (Engl. Transl.); (United States), Journal Name: Coke Chem., USSR (Engl. Transl.); (United States) Vol. 4; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401 -- Coal & Coal Products-- Carbonization-- (-1987)
010800* -- Coal
Lignite
& Peat-- Waste Management
CHEMICAL EFFLUENTS
COAL TAR
COKE OVENS
DISPERSIONS
HYDROGEN COMPOUNDS
LIQUID WASTES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
REMOVAL
SUSPENSIONS
TAR
WASTE WATER
WASTES
WATER
WATER TREATMENT