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US 4,342,656 AGranted
Process for disposal of aqueous lipoidal wastes
AssigneeSCM Corporation
InventorThomas J. Walsh
Life of this patent
Estimating the term…
Abstract
Normally non-combustible lipoidal waste which has been separated from a waste water stream is disposed of and its fuel value recovered by mixing the waste with fuel oil and burning the mixture.
Claims3
A process for recovering the fuel value of a normally unburnable lipoidal waste and disposing of said waste wherein said lipoidal waste comprises waste lipids and water, and is the waste product of a process selected from the group consisting of:
- refining of fats, refining of oils, fat rendering, tall oil recovery, tall oil refining, alkali refining of lipids and saponification of lipids, comprising the steps of:
- (a) separating said lipoidal waste from a portion of the waste water to produce a concentrated lipoidal waste which is about 30-70% waste lipids, the remainder being predominantly waste water in a complex emulsion from with the waste lipids;
- (b) mixing said concentrated lipoidal waste with fuel oil to form a combustible mixture;
- and
- (c) burning said mixture;
- said lipoidal waste containing indigenous surface tension lowering materials selected from the group consisting of saponifiable materials, unsaponifiable materials, acids, and soaps which facilitate said mixing, said mixing producing a state of subdivision effective for substantially complete dispersion of the lipoidal waste in the fuel oil until combustion.
3 more elements
Dependencies are inferred from the claim text.