Abstract: A biological wastewater treatment process and modular apparatus wherein activated sludge is recirculated in all of aeration, fluidized bed and return sludge phases in the apparatus.
Type:
Grant
Filed:
March 7, 2008
Date of Patent:
September 27, 2011
Assignee:
MYK Consultant, Inc.
Inventors:
Mark Y. Kigel, Oleksandr O. Kovelenko, Leonard B. Goldman, John F. Shultis