title: Evaluation of electro-oxidation of biologically treated landfill leachate using response surface methodology.
abstract: Box-Behnken statistical experiment design and response surface methodology were used to investigate electrochemical oxidation of mature landfill leachate pretreated by sequencing batch reactor (SBR). Titanium coated with ruthenium dioxide (RuO(2)) and iridium dioxide (IrO(2)) was used as the anode in this study. The variables included current density, inter-electrode gap and reaction time. Response factors were ammonia nitrogen removal efficiency and COD removal efficiency. The response surface methodology models were derived based on the results. The predicted values calculated with the model equations were very close to the experimental values and the models were highly significant. The organic components before and after electrochemical oxidation were determined by GC-MS.
authors.affiliation: Department of Environmental Engineering, Wuhan University, PO Box C319, Luoyu Road 129#, Wuhan 430079, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Xiaoni
authors.initials: X
authors.lastname: Ran
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Wu
authors.forename: Daobin
authors.initials: D
authors.lastname: Zhang
mesh_terms: D001673:Biodegradation, Environmental; D055664:Electrochemical Techniques / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D008401:Gas Chromatography-Mass Spectrometry; D008962:Models, Theoretical; D010084:Oxidation-Reduction; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D014874:Water Pollutants, Chemical