The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 1978
Filed:
Dec. 14, 1976
Nittetu Chemical Engineering Ltd., Tokyo, JP;
Abstract
A process for treating a waste liquid which is obtained from a fermentation process, e.g., an alcohol fermentation, and contains organic and inorganic substances which are useful as fertilizer, is provided which includes combusting a concentrate of the waste liquid and bringing the combustion products containing the ashes which are formed from the inorganic substances and the hot combustion gases into direct contact with a fresh portion of the waste liquid. Thereby the liquid is concentrated by evaporation and a slurry of the ashes in the concentrated waste liquid is formed. The slurry is separated into a solid sediment containing the minerals and a part of the organic components of the liquid and a concentrates mother liquid, at least a portion of which is combusted as the concentrate. By drying the sediment with agitation, a granulate which can be used as a fertilizer can be produced.