A pollution control apparatus (10) for controlling water-based liquid waste includes a vacuum distillation vessel (14) for separating water-based liquid waste into a distilled water component and a pumpable sludge component. A pH control system (12) allows the vacuum distillation vessel (14) to operate...http://www.google.es/patents/US5466344?utm_source=gb-gplus-sharePatente US5466344 - Method and apparatus for controlling water-based liquid waste
Method and apparatus for controlling water-based liquid waste
