WASTEWATER TREATMENT UNIT AND METHOD

摘要

A treatment unit and method for treating wastewater by a bio-film process are disclosed. The treatment unit includes at least one treatment pipe through which wastewater being re-circulated and at least one drive section for providing re-circulation of the wastewater thorough the treatment pipe. The treatment pipe includes at least one pipe constituting the outer surface of the treatment pipe and at least one carrier medium where bio-film being grown thereon, complementing the shape of the internal volume of the pipe and/or occupying at least part of the internal volume of the pipe.