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. 27, 1996
Filed:
Dec. 21, 1994
Casper J Rekers, Hardenberg, NL;
Stork Friesland B.V., Gorredijk, NL;
Abstract
An apparatus is described for treating polluted water. The apparatus comprises a supply system for polluted water; an activated-sludge reactor; one or more filter membrane modules; an air supply system and a discharge system for the treated water. The filter membrane modules comprise hollow membranes within a casing. Said filter membrane modules on one side adjoin the activated-sludge reactor and on the other side adjoin air distribution means. The activated-sludge reactor communicates, via a bypass line, with a sludge receiving container which adjoins the air distribution means. The apparatus functions in such a way that the water to be treated and air supplied are flowing in the same direction through the hollow membranes, the permeate flowing through the membranes towards the space between the casing and the membranes, where it is discharged via permeate discharge system.