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:
Feb. 26, 1980
Filed:
Jun. 20, 1978
Applicant:
Inventor:
Bernardus H Dassen, Kerkrade, NL;
Assignee:
Stamicarbon, B.V., Geleen, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210-8 ; 71 12 ; 210 10 ; 210 12 ; 210 18 ; 210 48 ; 426807 ;
Abstract
Process for the biological purification of waste water in which a suspension of the surplus sludge formed during the purification is hydrolyzed in a basic medium and at elevated temperatures.