臭氧-生物处理联用工艺深度处理苯胺黑染料废水
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摘要
以某工业苯胺黑染料废水处理系统的二沉池出水为研究对象,对某染料厂废水处理系统的二沉池出水进行深度处理实验研究,考察了臭氧氧化处理废水时三种金属离子催化剂的催化效果,探讨了臭氧氧化联用生物处理工艺的关键运行条件。结果表明,Mn2+,Fe2+和Cu2+三种金属离子催化剂对废水CODCr、苯胺有很好的去除效果,其中Mn2+催化效果明显高于其他两种金属离子,Mn2+催化臭氧条件下CODCr、苯胺去除率分别为59.1%和90.5%,优于单独臭氧氧化效果,色度去除率为87.5%,低于单独臭氧氧化效果。将臭氧处理后的染料废水用活性污泥法进行生物处理,确定了污泥浓度为3 000mg/L时最佳曝气时间为6h,出水CODCr浓度小于72mg/L、苯胺浓度小于0.8mg/L,达到染料废水的一级排放标准。
By taking actual aniline black dyeing wastewater as the research object,experiment was conducted to explore advanced treatment ways of effluents from dye wastewater treatment system by ozone and activated sludge.In the ozonation test,the effect of three different metal ion catalysts including Mn2+,Fe2+and Cu2+,were examined.In addition,the critical operating conditions of biological treatment combine with ozonation has been investigated.Results showed that all three metal ion catalysts have positive effect on the removal of CODCrand aniline,moreover,the performance of Mn2+was better than the others.Through ozone oxidation with Mn2+as catalyst,the CODCrand aniline removal rate reached59.1% and 90.5%,respectively,which was better than ozone oxidation.The decolorization rate of catalytic ozone oxidation was 87.5%,which worse than ozone oxidation without any catalyst.The optimum biological treatment parameters were as follows:Aeration time was 6 hwhen the sludge concentration was3 000 mg/L.The CODCrand aniline concentration of final effluent were below 72 and 0.8 mg/L,respectively,which could meet the 1 st level discharge standard.
By taking actual aniline black dyeing wastewater as the research object,experiment was conducted to explore advanced treatment ways of effluents from dye wastewater treatment system by ozone and activated sludge.In the ozonation test,the effect of three different metal ion catalysts including Mn2+,Fe2+and Cu2+,were examined.In addition,the critical operating conditions of biological treatment combine with ozonation has been investigated.Results showed that all three metal ion catalysts have positive effect on the removal of CODCrand aniline,moreover,the performance of Mn2+was better than the others.Through ozone oxidation with Mn2+as catalyst,the CODCrand aniline removal rate reached59.1% and 90.5%,respectively,which was better than ozone oxidation.The decolorization rate of catalytic ozone oxidation was 87.5%,which worse than ozone oxidation without any catalyst.The optimum biological treatment parameters were as follows:Aeration time was 6 hwhen the sludge concentration was3 000 mg/L.The CODCrand aniline concentration of final effluent were below 72 and 0.8 mg/L,respectively,which could meet the 1 st level discharge standard.
引文
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[2]张宇峰,滕洁,张雪英,等.染料废水处理技术的研究进展[J].工业水处理,2003(4):23-27.Zhang Y F,Teng H,Zhang X Y.The research progress of dye wastewater treatment technology[J].Industrial Water Conditioning,2003(4):23-27.
[3]李长江,张磊,赵永柱,等.臭氧氧化法深度处理二沉池出水实验研究[J].市政技术,2013(4):137-139.Zhang C J,Zhang L,Zhao Y Z.Experimental study on advanced treatment of two settling tank effluent by ozone oxidation[J].Municipal Technology,2013(4):137-139.
[4]李丽芳,汪林,张炜铭,等.高级氧化法处理光引发剂生产废水[J].化工环保,2017(1):8-12.Li L F,Sun J,Zhang W M,Advanced oxidation treatment of light initiator production wastewater[J].Environmental Protection of Chemical Industry,2017(1):8-12.
[5]朱虹,孙杰,李建超.印染废水处理技术[M].北京:中国纺织出版社,2004.Zhu H,Sun J,Li J C.Printing and Dyeing Wastewater Treatment Technology[M].Beijing:China Textile Press,2004.
[6]Yousuf A M,Robert S,Jose R,et al.Electro coagulation(EC)-science and applications[J].Journal of Hazardous Materials B,2001(84):29-41.
[7]Chen Guoha.Electro chemical technologies in wastewater treatment[J].Separation and Purification Technology,2004(38):11-41.
[8]胡俊生,李春荣,徐志荣,等.UV/H2O2法降解水中阴离子表面活性剂[J].沈阳建筑大学学报:自然科学版,2007,23(4):639-642.Hu J S,Li C R.Xu Z R,The degradation of anionic surfactant by UV/H2O2[J].Journal of Shenyang Architectural University:Natural Science Edition,2007,23(4):639-642.
[9]胡俊生,徐志荣,李春荣,等.水体中对氯苯酚的电化学降解研究[J].沈阳建筑大学学报:自然科学版,2007,23(5):822-825.Hu J S,Xu Z R,Xu Z R,Chlorine for electrochemical degradation of phenol in water[J].Journal of Shenyang Architectural University:Natural Science Edition,2007,23(5):822-825.
[10]Plant L,Jeff M.Hydrogen peroxide:apotent force to Destroy organic in wastewater[J].Chem Eng,1994(101):16-20.
[11]Sundstrom D W,Weir B A,Barber T A,et al.Destruction of pollutants and microorganism sin water by UV light and hydrogen peroxide[J].Wat Pollut Res J Canada,1992,27(1):57-68.
[12]史惠祥,赵伟荣,汪大翚.偶氮染料的臭氧氧化机理研究[J].浙江大学学报(工学版),2003,37(6):734-738.Shi Huixiang,Zhao Weirong,Wang Dajun.Ozone oxidation mechanism of azo dye[J].Journal of Zhejiang University(Engineering Science),2003,37(6):734-738.
[13]Chen T Y,Kao C M,Hong A,et al.Application of ozone on the decolorization of reactive dyes-Orange-13and Blue-19[J].Desalination,2009,249(3):1238-1242.
[14]Wu J N,Doan H,Upreti S.Decolorization of aqueous textile reactive dye by ozone[J].Chemical Engineering Journal,2008,142(2):156-160.
[15]Thrhan K,Durukan I,Ozturkcan S A,et al.Decolorization of textile basic dye in aqueous solution by ozone[J].Dyes and Pigments,2012,92(3):897-901.
[16]Bagha A R T,Mahmoodi N M,Menger F M.Degradation of a persistent organic dye from colored textile wastewater by ozonation[J].Desalination,2010,260(1-3):34-38.
[17]Khadhraoui M,Trabelsi H,Ksibi M,et al.Discoloration and detoxicification of a congo red dye solution by means of ozone treatment for a possible water reuse[J].Journal of Hazardous Materials,2009,161(2-3):974-981.
[18]马龙,王雅洁,杨成.废水高级氧化技术研究现状与发展[J].环境工程,2016(6):52-55.Ma L,Wang Y J,Yang C.Research status and development of advanced oxidation technology for wastewater[J].Environmental Engineering,2016(6):52-55.
[19]王璐.均相催化臭氧氧化处理分散染料废水的研究[D].上海:东华大学,2012.Wang L.Homogeneous Catalytic Ozonation of Disperse Dye Wastewater Treatment Research[D].Shanghai:Donghua Univerisity,2012.
[20]石岩,邓淑仪,许丹宇,等.臭氧催化氧化法处理含酚废水的研究进展[J].环境工程,2015(3):17-20.Shi Y,Deng S Y,Xu D Y.Research Progress on the treatment of phenol wastewater by ozone catalytic oxidation[J].Environmental Engineering,2015(3):17-20.
[21]Arslan I.Treatability of a simulated disperse dye-bath by ferrous iron coagulation,ozonation,and ferrous iron-catalyzed ozonation[J].Journal of Hazardous Materials,2001,85(3):229-241.
[22]宁军,陈立伟,蔡天明.臭氧催化氧化降解苯胺的机理[J].环境工程学报,2013(2):551-556.Ning J,Chen L W,Cai T M.The mechanism of ozone catalytic oxidation degradation of aniline[J].Chinese Journal of Environmental Engineering,2013(2):551-556.