title: [Removal of NH4(+)-N from polluted water resources by bioremediation of biofilm process with elastic packing & micropore aerator].
abstract: The effect of NH4(+)-N removal in the polluted raw water of water sources by the bioremediation action of the biocontact oxidation process with the elastic packing and micropore aerator was studied in this paper. The research results showed the bioremediation process can reach a removal ratio of 64%-95% for NH4(+)-N of water sources under the condition of ordinary temperature 20 degrees C-27 degrees C, CODMn 7-14 mg/L, NH4(+)-N 0.7-2.0 mg/L in the water sources and the running parameters HRT 1.4 h, gas and water ratio 0.5:1, and DO 7-9 mg/L for the bioremediation process and a removal ratio of 40%-63% for NH4(+)-N of water sources under the condition of low temperature 7 degrees C-12 degrees C, CODMn 6-11 mg/L, NH4(+)-N 1.2-8.0 mg/L in the water sources and the running parameters HRT 1.4 h, gas and water ratio 0.5:1, and DO 8-10 mg/L for the bioremediation process.
authors.affiliation: Wastewater Treatment Engineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. ytxiao@dicp.ac.cn
authors.forename: Y
authors.initials: Y
authors.lastname: Xiao
authors.forename: M
authors.initials: M
authors.lastname: Wu
authors.forename: H
authors.initials: H
authors.lastname: Liu
authors.forename: J
authors.initials: J
authors.lastname: Xu
mesh_terms: D018441:Biofilms; D000644:Quaternary Ammonium Compounds / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification
chemical_list: D000644:Quaternary Ammonium Compounds; D014874:Water Pollutants, Chemical