(54) Title: WASTE WATER PURIFICATION PLANT AND METHOD FOR PURIFYING WASTE WATER (54) Bezeichnung: ABWASSERREINIGUNGSANLAGE SOWIE VERFAHREN ZUR ABWASSERREINIGUNG (57) Abstract: The invention relates to a waste wafer purification plant having a) an intake mixing tank (3), b) a combined reaction and sedimentation tank (1, 2) having a first and a second tank section, c) wherein d) a first connection point (11) is arranged between the intake mixing tank (3) and the first tank section (1) in the lower tank region of the first tank section (1), c2) a first pump (12) is arranged at the first connection point (i 1) and can be actuated to convey return sludge from the first tank section (1) into the intake mixing tank.(3), c3) a first clarified water drain point (13) is arranged k the upper tank.region of the first tank section (I), and d) wherein di) a second connection point (21) is arranged between the intake mixing tank (3) and the second tank section (2) in the lower tank region of the seco

摘要

pThe invention relates to a waste water purification plant having a) an intake mixing tank (3), b) a combined reaction and sedimentation tank (1, 2) having a first and a second tank section, c) wherein d) a first connection point (11) is arranged between the intake mixing tank (3) and the first tank section (1) in the lower tank region of the first tank section (1), c2) a first pump (12) is arranged at the first connection point (11) and can be actuated to convey return sludge from the first tank section (1) into the intake mixing tank (3), c3) a first clarified water drain point (13) is arranged in the upper tank region of the first tank section (1), and d) wherein d1) a second connection point (21) is arranged between the intake mixing tank (3) and the second tank section (2) in the lower tank region of the second tank section (2), d2) a second pump (22) is arranged at the second connection point (21) and can be actuated to convey return sludge from the second tank section into the intake mixing tank (3), and d3) a second clarified water drain point (23) is arranged in the upper tank region of the second tank section (2). The invention also relates to a method for purifying waste water, in particular for the biological purification of waste water according to the activated sludge process, and to a method for after-treating the activated sludge./p [WO2011023408A1]