title: [Measurement and analysis of micropore aeration system's oxygenating ability under operation condition in waste water treatment plant].
abstract: Using the aeration pool in the fourth-stage at Wuxi Lucun Waste Water Treatment Plant (WWTP) as experimental setup, off-gas method was selected to measure the oxygenating ability parameters of micropore aerators in a real WWTP operating condition and these values were compared with those in fresh water to evaluate the performance of the micropore aerators. Results showed that the micropore aerators which were distributed in different galleries of the aeration pool had significantly different oxygenating abilities under operation condition. The oxygenating ability of the micropore aerators distributed in the same gallery changed slightly during one day. Comparing with the oxygenating ability in fresh water, it decreased a lot in the real aeration pool, in more details, under the real WWTP operating condition, the values of oxygen transfer coefficient K(La) oxygenation capacity OC and oxygen utilization E(a) decreased by 43%, 57% and 76%, respectively.
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China. wu-yy10@mails.tsinghua.edu.cn
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Wu
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Zhou
authors.forename: Han-Chang
authors.initials: HC
authors.lastname: Shi
authors.forename: Yong
authors.initials: Y
authors.lastname: Qiu
mesh_terms: D000388:Air; D010084:Oxidation-Reduction; D010100:Oxygen; D064091:Waste Disposal Facilities; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods; D018508:Water Purification / Q000379:methods
chemical_list: D010100:Oxygen