化学工程
化學工程
화학공정
CHEMICAL ENGINEERING
2014年
5期
10-12,38
,共4页
含苯系物废水%Fenton氧化法%去除率%试剂消耗量%二次污染
含苯繫物廢水%Fenton氧化法%去除率%試劑消耗量%二次汙染
함분계물폐수%Fenton양화법%거제솔%시제소모량%이차오염
wastewater of BTEX%Fenton oxidation%removing rate%consumption of oxidant%secondary pollution
苯乙烯生产废水含有乙苯、甲苯、二甲苯、苯和苯乙烯等苯系物，均为难生化降解有机物，影响污水处理厂生化处理效果和稳定运行。实验采用Fenton氧化法处理苯乙烯废水，通过分析处理前后废水中苯系物质量浓度，观察苯系物去除效果，根据不同质量浓度苯系物的去除率与氧化试剂投加量的相关曲线，分析苯系物质量浓度与氧化剂投入量的关系；通过处理前后废水质谱分析图，分析经Fenton氧化后是否产生二次污染物。实验得出Fenton氧化试剂对乙苯、甲苯、苯均具有很好的降解效果，去除率在90％以上时，苯系物质量浓度与试剂消耗量成正比；经Fenton氧化后废水中物质为二甲苯和苯乙烯，均为原水中物质，没有其他转化物质，不会产生二次污染物。
苯乙烯生產廢水含有乙苯、甲苯、二甲苯、苯和苯乙烯等苯繫物，均為難生化降解有機物，影響汙水處理廠生化處理效果和穩定運行。實驗採用Fenton氧化法處理苯乙烯廢水，通過分析處理前後廢水中苯繫物質量濃度，觀察苯繫物去除效果，根據不同質量濃度苯繫物的去除率與氧化試劑投加量的相關麯線，分析苯繫物質量濃度與氧化劑投入量的關繫；通過處理前後廢水質譜分析圖，分析經Fenton氧化後是否產生二次汙染物。實驗得齣Fenton氧化試劑對乙苯、甲苯、苯均具有很好的降解效果，去除率在90％以上時，苯繫物質量濃度與試劑消耗量成正比；經Fenton氧化後廢水中物質為二甲苯和苯乙烯，均為原水中物質，沒有其他轉化物質，不會產生二次汙染物。
분을희생산폐수함유을분、갑분、이갑분、분화분을희등분계물，균위난생화강해유궤물，영향오수처리엄생화처리효과화은정운행。실험채용Fenton양화법처리분을희폐수，통과분석처리전후폐수중분계물질량농도，관찰분계물거제효과，근거불동질량농도분계물적거제솔여양화시제투가량적상관곡선，분석분계물질량농도여양화제투입량적관계；통과처리전후폐수질보분석도，분석경Fenton양화후시부산생이차오염물。실험득출Fenton양화시제대을분、갑분、분균구유흔호적강해효과，거제솔재90％이상시，분계물질량농도여시제소모량성정비；경Fenton양화후폐수중물질위이갑분화분을희，균위원수중물질，몰유기타전화물질，불회산생이차오염물。
Styrene industrial wastewater contains nonbiodegradable BTEX:benzene, toluene, ethyl benzene, xylene,and styrene,which have a bad effect on biochemical treatment and stable operation for a sewage treatment plant.Fenton oxidation method was used to treat the styrene wastewater and observe the removal effect by analyzing the BTEX mass concentration in untreated and treated wastewater.According to the curve of removing rate of BTEX in different mass concentration and oxidant adding quantity,the relationship of mass concentration and oxidant quantity was analyzed.The possibility of secondary pollution can be determined by analyzing the mass spectrum of the untreated and treated wastewater.The result indicates that Fenton oxidation has a good degradation effect on toluene,ethyl benzene and benzene with removing rate over 90%.The mass concentration of BTEX is proportional to oxidant quantity.The results of mass spectrum show that the wastewater treated by Fenton oxidation only contains the original xylene and styrene,without other converted matter,thus no secondary pollution occurs.
