Ultrafiltration of sulfite liquors for separation of lignosulfonates removed from water by coagulation

Journal Article · Thu Apr 10 04:00:00 EST 1986 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6938822

Medvedev, Yu M; Medvedev, M I; Tsapyuk, E A

This paper attempts to select an ultrafilter retaining lignosulfonate (LS) fractions precipitated by coagulants and to study the relationships of their concentration and efficiency of removal from water by coagulants. The material studied - sulfite liquor from the Syas' pulp and paper combine - was fractionated with the use of ''Vladipor'' cellulose acetate ultrafiltration membranes of various pore sizes. Data on the efficiency of removal from water of LS fractions retained by membranes differing in pore size are presented. It is concluded that ecologically safe LS fractions (removed almost completely by the coagulant) can be obtained by ultrafiltration of technical liquor through UAM-500 membranes under 0.7 MPA pressure.

• Research Organization: A.V. Dumanskii Institute of Colloid Chemistry
• OSTI ID: 6938822
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:10, PT. 2; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
320305 -- Energy Conservation
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520200* -- Environment
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54 ENVIRONMENTAL SCIENCES
CARBOHYDRATES
CELLULOSE
EFFICIENCY
ENERGY EFFICIENCY
FILTERS
FILTRATION
FLOCCULATION
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
INDUSTRY
LIGNIN
LIQUID WASTES
MATERIALS TESTING
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
POLYSACCHARIDES
POROSITY
PRECIPITATION
SACCHARIDES
SEPARATION PROCESSES
SOLID WASTES
SULFITES
SULFONATES
SULFUR COMPOUNDS
TESTING
WASTE PRODUCT UTILIZATION
WASTE WATER
WASTES
WATER
WATER TREATMENT
WOOD PRODUCTS INDUSTRY
WOOD WASTES