The method of treating wastewater or bioorganic sludges containing odor, animal viruses, pathogenic bacteria, and parasites to produce a bioactive but stabilized product that is useful as a soil substitute or as a fertilizer which can be applied directly to lands which consists essentially...http://www.google.com/patents/US5853450?utm_source=gb-gplus-sharePatent US5853450 - Method for treating bioorganic and wastewater sludges
