多相催化氧化处理焦化废水的研究_许韵华
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2020-02-06 20:22:44
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02-P-023多相催化氧化处理焦化废水的研究多相催化氧化处理焦化废水的研究许韵华许韵华*,杨玉国,程志明,杨玉国,程志明北京交通大学理学院,100044,北京Email:yhxu@science.njtu.edu.cn)采用沉淀法制备了铁氧化物催化剂[1],在含苯酚水溶液中加H2O2来催化氧化降解苯酚,得到了优化的反应条件:反应温度为60℃、双氧水浓度为1.5%、pH值为4.5。在该条件下处理焦化废水,并用紫外光谱、高效液相色谱对反应过程进行研究分析,结果表明该催化剂对焦化废水有很好的降解效果,催化剂的重复使用性较好。关键词关键词催化剂;H2O2;催化降解;焦化废水Tab1Experimentresultofreusedcatalystincokingwastewater处理次数12345678处理后CODcr[2](mg/L)31.633.533.533.535.042.545.060.5去除率%94.894.594.594.594.293.092.690.001234240290340390440Wavelength/nmAbsorbanc处理后处理前-20020406080100120051015minmAU-50050100150051015minmAU(a)(b)Fig1AbsorbancespectrumsofcokingFig2HPLCofcokingwastewaterbeforeandaftertreatmentwastewaterbeforeandaftertreatment(a)beforetreatmentandaftertreatment(b)aftertreatment参考文献:[1]许韵华,杨玉国等,一种多相催化氧化处理污水用催化剂及其制备方法,专利公开号:CN1695801[2]国家环保局水和废水监测分析方法编委会,水和废水监测分析方法第三版,北京:中国环境科学出版社StudyofOxidationDegradationofCokingWaster-waterwithHeterogeneousCatalyst*Yun-HuaXu,Yu-GuoYang,Zhi-MingChengSchoolofScience,BeijingJiaotongUniversity,100044,BeijingPhenolinwastewaterwasdegradedbyH2O2oxidationwiththeamorphousironoxidecatalystwhichwaspreparedbydeposition.Theoptimalreactionconditionsareobtainedwithexperiment.Theoptimalreactionconditionis60℃,1.5%H2O2,pH4.5.TheextentofphenoldegradationwasdetectedwithUVabsorptionspectrumandhighperformanceliquidchromatogram.Theresultsshowthatdegradationofphenolisremarkableusingoftheamorphousironoxidecatalystundertheoptimalreactioncondition.北京交通大学“十五”科技专项基金(2005sm060)
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