title: Addition of anaerobic tanks to an oxidation ditch system to enhance removal of phosphorus from wastewater.
abstract: The oxidation ditch has been used for many years all over the world as an economic and efficient wastewater treatment technology. It can remove COD, nitrogen and a part of phosphorus efficiently. In the experiment described, a pilot scale Pasveer oxidation ditch system has been tested to investigate the removal of phosphorus from wastewater. The experimental results showed that influent total phosphorus(TP) was removed for 35%-50%. After this, two anaerobic tanks with total volume of 11 m3 were added to the system to release phosphorus. As a result, the TP removal efficiency increased by about 20%. At an anaerobic HRT of about 6 hours, a TP removal efficiency of 71% was achieved.
authors.affiliation: Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. jxliu@mail.rcees.ac.cn
authors.forename: Jun-xin
authors.initials: JX
authors.lastname: Liu
authors.forename: J W
authors.initials: JW
authors.lastname: van Groenestijn
authors.forename: H J
authors.initials: HJ
authors.lastname: Doddema
authors.forename: Bao-zhen
authors.initials: BZ
authors.lastname: Wang
mesh_terms: D001421:Bacteria, Anaerobic; D019149:Bioreactors; D005068:Eutrophication; D010084:Oxidation-Reduction; D010758:Phosphorus / Q000378:metabolism*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D010758:Phosphorus