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:
Oct. 02, 2007
Filed:
Feb. 23, 2005
Alan W. Schaefer, Bloomsdale, MO (US);
Valery D. Zimin, Houston, TX (US);
Vladimir N. Shtern, Houston, TX (US);
Michael A. Schaefer, St. Mary's, MO (US);
Alan W. Schaefer, Bloomsdale, MO (US);
Valery D. Zimin, Houston, TX (US);
Vladimir N. Shtern, Houston, TX (US);
Michael A. Schaefer, St. Mary's, MO (US);
VAV Technologies, Inc., Ste. Genevieve, MO (US);
Abstract
A settling grid separator apparatus and method of use which provides deep dehydration of high flow rate sludge in an environmentally friendly and energy efficient manner. The apparatus and method comprise and utilize an efficient mixing of the sludge with a flocculating agent or polymer solution, and sludge flow quieting techniques to reduce disturbances and promote flocculation of clustered solids. Free surface liquid rejection, a series of traps, and pressurized filtering utilize gravimetric, hydrometric, and densimetric techniques to separate liquid from suspended solids. Gravitational forces are utilized throughout the apparatus and method to promote separation of higher density solids from the lower density liquid carrier. Upon separation, solids with a minimal liquid content are controllably discharged for proper disposal or recycling.