Inventor
WOLLMANN ALBERT M
US4 patents
Patents
4 patentsUS6517723B1Feb 11, 2003
Method and apparatus for treating wastewater using membrane filters
CH2M HILL INC128 citations96
US6946073B2Sep 20, 2005
Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent
CH2M HILL INC95 citations95
US6863818B2Mar 8, 2005
Method and apparatus for treating wastewater using membrane filters
CH2M HILL INC108 citations95
US7138048B1Nov 21, 2006
Apparatus and method for the removal of solids and floatables from a wastewater stream
CH2M HILL INC31 citations87