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:
Dec. 13, 1988
Filed:
May. 30, 1986
Tatsuo Sumino, Chiyoda, JP;
Yasutomo Ohtake, Chiyoda, JP;
Hiroki Nakamura, Chiyoda, JP;
Masahiro Kon, Chiyoda, JP;
Naomichi Mori, Chiyoda, JP;
Kazuo Nakajima, Chiyoda, JP;
Abstract
Microorganisms such as in activated sludge are immobilized by forming a mixture containing the microorganisms, a monomer or prepolymer and alginic acid or water soluble alignate, and dropping the mixture into a water solution of polyvalent metal ion and a polymerization initiator to form particles containing the microorganisms. Preferably, the monomer is an acrylamide monomer, the prepolymer is an ester of an acrylic acid group and polyethylene glycol and the polymerization initiator is a persultate. By this method, the microorganisms are protected from toxic substances such as the polymerization initiator during immobilization.