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:
Dec. 29, 2009
Filed:
Nov. 06, 2007
Girish Ramesh Pophali, Nagpur, IN;
Tapas Nandy, Nagpur, IN;
Santosh Narain Kaul, Nagpur, IN;
Sukumar Devotta, Nagpur, IN;
Girish Ramesh Pophali, Nagpur, IN;
Tapas Nandy, Nagpur, IN;
Santosh Narain Kaul, Nagpur, IN;
Sukumar Devotta, Nagpur, IN;
Abstract
The improved circular secondary clarifier of the present invention requires less surface area and low HRT and provides efficient solids-liquid separation. The improved clarifier has better SS and BOD reduction and provides high under flow solids concentrations, as compared to conventional secondary clarifiers. The improved clarifier is even capable of treating wastewaters containing low MLSS concentration. One of the biggest advantages of improved clarifier is that it does not require a separate sump cum pump house as it removes the settled sludge using suction mechanism thereby reduces capital and recurring cost. Further, it provides natural flocculation, which is essential for agglomeration of solids and increases particle size referred to as 'floc' and eliminates provision for a separate flocculation facility thereby reduces capital and recurring costs.