Method for elimination of nitrogen in clarification basins using plants or other soil filters comprises mechanical pre-clarification, denitrification, clarification using plants and recirculation

摘要

Method for elimination of nitrogen in clarification basins using plants or other soil filters comprises: (a) mechanical pre-clarification (1); (b) denitrification (6); (c) clarification using plants (2); and (d) recirculation (3). Sludge may be recycled to the denitrification stage, optionally after an intermediate clarification stage.