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. 10, 2004
Filed:
Oct. 30, 2002
Philip Streat, Boca Raton, FL (US);
Parkson Corporation, Ft. Lauderdale, FL (US);
Abstract
In the typical embodiments disclosed in the specification, a ballasted flocculation liquid treatment arrangement includes a mixing chamber in which liquid to be treated, flocculating agents and granular material are mixed. The mixture is supplied to the bottom of a flocculating chamber adjacent to the mixing chamber through an opening in a common wall between the chambers and is maintained in suspension in the flocculating chamber by turbulence generated by a rotating blade array. Ballasted flocs are transferred from the flocculation chamber to an adjacent sludge tank through a first opening in a common wall between them and liquid which contains lighter flocs is returned to the flocculation chamber through a second opening in the common wall. Liquid from the flocculation chamber passes upwardly through a turbulence control arrangement where flocs and particulates are substantially removed and into a clarification chamber where clarified liquid is passed over a weir to an outlet. Sludge and granular material from the bottom of the sludge tank are conveyed by an airlift to a cleaning device above the mixing chamber where the granular material is cleaned and returned to the mixing chamber while sludge is carried away through a disposal outlet.