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Latest Inventions  Cookery and food stuffs The biological active additives METHOD FOR PURIFYING MEAT HOUSE SEWAGE WATER AND OBTAINING FAT CONCENTRATE
METHOD FOR
PURIFYING MEAT HOUSE SEWAGE WATER AND OBTAINING FAT CONCENTRATE
FIELD: meat house sewage processing industry.
SUBSTANCE: method involves separating fat mass by
pressure flotation without using reactants; providing thermal treatment of
obtained fat mass in two stages under vacuum while mixing it: at first stage,
thermal treatment is conducted at temperature of 70-90 C and residual pressure
of 30-40 kPa to complete dehydration of product, and at second stage, dehydrated
fat mass is heated at temperature of 130-150 C and residual pressure of 15-20
kPa for 0.5-1.0 hour; cooling and pouring ready product, i.e., fat concentrate;
providing additional purifying of remaining sewage water by known method.
Pressure flotation is performed at excessive pressure of 0.3-0.4 MPa at air
content of 1.0-4.0 wt. % in air-water emulsion. Basic fatty component is removed
after reactant-free flotation, with fat content in sewage water at inlet end
being within the range of 1,500-2,000 mg/l and at outlet end up to 110-150 mg/l.
EFFECT: increased efficiency in purifying sewage
water and provision for obtaining fat concentrate free of contaminants and
having fat-and-acid content corresponding to that of inedible fat. 5 cl, 1 ex
Postolov Ju.M.,
Gubanov A.V., Lisitsyn A.N., Machigin V.S., Klimova N.P.
Patent number: 2184085
Publishing date: August 20, 2002
To make the order on reception of the complete information under the invention, interesting for you
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