Membrane methods of separating solutions and their possible uses in coking plants

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Coke Chem., USSR (Engl. Transl.); (United States)

OSTI ID:5259166

Dytnerskii, Yu I; Korolev, Yu G; Grigor'ev, V V; Terpugov, G V

Semipermeable membranes have been increasingly used for solution separation processes over the last 10 to 15 years in a number of industrially developed countries, including the USA and the UK. The underlying principle is reversible osmosis, i.e., the preferential passage of solvent through the membrane under the action of an externally applied pressure exceeding the osmotic pressure of the solution to be separated. The reversible osmosis mechanism is based on the specific properties of water near the surfaces of a semipermeable membrane. The water adsorbed on and inside the membrane loses its ability to dissolve the solute. If the pore diameter in the membrane does not exceed the sum of the hydrated ion diameter plus twice the thickness of the adsorbed water film, only water can pass through the pores. Experiments on actual effluents from the Moscow plant have shown that membrane methods can be effectively used to purify effluents and separate various complex liquid mixtures encountered in coking plants.

• OSTI ID: 5259166
• Journal Information: Coke Chem., USSR (Engl. Transl.); (United States), Journal Name: Coke Chem., USSR (Engl. Transl.); (United States) Vol. 9; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
COKE OVENS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
MEMBRANES
OSMOSIS
OXYGEN COMPOUNDS
PROCESSING
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER