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dc.contributor.authorShan, Lili
dc.contributor.authorLiu, Junfeng
dc.contributor.authorAmbuchi, John Justo
dc.contributor.authorYu, Yanling
dc.contributor.authorHuang, Linlin
dc.contributor.authorFeng, Yujie
dc.description.abstractThe biologically pretreated cellulosic ethanol wastewater poses a serious environmental concern because of its refractory and color compounds. The decolorization of electrochemical oxidation using Sb doped Ti/ SnO2 electrode for advanced treatment of cellulosic ethanol wastewater under different current density (5–30 mAcm2 ), initial pH (3–8.9) and supporting electrolyte (0–0.25 M NaCl) was investigated in this study. Complete decolorization, 8.5% chemical oxygen demand (COD) and 69.1% dissolved organic carbon removal efficiencies were achieved under the optimal conditions (20 mAcm2 , pH 5 and supporting elec- trolyte of 0.1 M NaCl) after 150 min. The energy consumption required to meet National Discharge Standard (GB 27631-2011) is 93.8 kWh kg COD1 . Further investigation revealed that hydroxyl radicals played a primary role in the degradation of organic contaminants, while active chlorine formed from chloride oxidation played a less important role. Direct anodic oxidation and indirect reaction via perox- odisulfate generated from sulfate oxidation could be negligible. The formation of chlorination by- products appeared to be low since the final total Trihalomethanes concentration detected was 263 mg L1 , with the detection of chloroform as the main Trihalomethanes.en_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.subjectCellulosic ethanol wastewater Biologically treated effluent Decolorization Electrochemical oxidationen_US
dc.titleInvestigation on decolorization of biologically pretreated cellulosic ethanol wastewater by electrochemical methoden_US

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Attribution-NonCommercial-ShareAlike 3.0 United States
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 3.0 United States