Water borne human wastes contained in a holding tank of a self contained convenience facility are decomposed and thus decontaminated as well as deodorized by aqueous live bacteria delivered in a controlled laminar flow through flexible hose controlled by at least one valve from a reservoir of aqueous...http://www.google.de/patents/US5614411?utm_source=gb-gplus-sharePatent US5614411 - Self contained decontamination system