title: [Immobilized ammonia-oxidizing bacteria Comamonas aquatic LNL3 and its partial nitrification characterization].
abstract: A new kind of ammonia-oxidizing bacteria (AOB)-Comamonas aquatic LNL3 was screened out and immobilized by Poly (HEA)-Poly (HEMA) copolymer carrier using irradiation techniques. Four kinds of impact factors on short-cut nitrification, including temperature, pH, DO and free ammonia (FA) concentration had been investigated. The result showed that AOB-Comamonas aquatic LNL3 had short-cut nitrification capability and the optimal temperature, pH, DO and FA concentration were 30 degrees C, 8.5, 4.03 mg/L and 9 mg/L respectively. Corresponding to above results, ammonia nitrogen removal rate and short-cut nitrification efficiency were 93.52%, 94.73%; 79.74%, 94.67%; 91.17%, 94.66% and 90%, 94.4% respectively.
authors.affiliation: State Key Laboratory of Pollutant Control and Resources Reuse, School of Environment, Nanjing University, Nanjing 210093, China. zhkuili@nju.edu.cn
authors.forename: Zheng-kui
authors.initials: ZK
authors.lastname: Li
authors.forename: Lu-na
authors.initials: LN
authors.lastname: Shi
authors.forename: Zhu-you
authors.initials: ZY
authors.lastname: Yang
authors.forename: Xiao-jiao
authors.initials: XJ
authors.lastname: Zhang
authors.forename: Yue-ming
authors.initials: YM
authors.lastname: Wang
authors.forename: Qi-chun
authors.initials: QC
authors.lastname: Chen
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
mesh_terms: D000645:Ammonium Sulfate / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D018914:Cells, Immobilized; D020585:Comamonas / Q000254:growth & development / Q000378:metabolism*; D009584:Nitrogen / Q000302:isolation & purification / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D009584:Nitrogen; D000645:Ammonium Sulfate