A method for removing inert solids from low-yield wastewater treatment processes. The method includes combining wastewater with bacteria-laden sludge in a mainstream reactor to form a mixed liquor, separating the mixed liquor into a clear effluent and activated sludge, returning a first portion of activated...http://www.google.es/patents/US7569147?utm_source=gb-gplus-sharePatente US7569147 - Screening of inert solids from a low-yield wastewater treatment process
Screening of inert solids from a low-yield wastewater treatment process