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:
Jun. 10, 1997
Filed:
Feb. 17, 1995
Roy S Rieber, Houston, TX (US);
enviroGuard, Inc., Houston, TX (US);
Abstract
Disclosed is a combined flocculating and clarifying medium for flocculating and separating solid particles from waste water comprising a mixture of solid filtering or aggregating particles and a dry flocculating agent effective to flocculate the solid particles to form larger and heavier aggregates with the filtering or aggregating particles in the waste water and filtering or gravity separating the formed aggregate from the waste water. Preferably, the filtering and aggregating particles are silicious particles, such as rice hull ash, diatomaceous earth, and perlite. The flocculating and clarifying medium can be combustible or can chemically fix the aggregated solid particles in a silicious cement, which solid particles can include heavy metal particles in silicious cement.