UV/H2O2/O3高级氧化技术降解藻源NDMA前体物特性研究
摘要：对比了UV、H2O2和O3氧化技术及UV/H2O2/O3高级氧化技术对藻源NDMA前体物的去除效果,并使用BBD响应曲面法进行了参数优化。结果表明UV及H2O2氧化会增加NDMA前体物含量,O3氧化仅在高投加量情况下对NDMA前体物有一定去除效果,UV/H2O2/O3技术可有效降解藻源NDMA前体物；响应曲面法优化结果表明,各因素对试验结果影响程度的顺序为：UV剂量>O3投加量>H2O2投加量,UV/H2O2/O3技术去除藻源NDMA前体物最佳工况参数为：UV剂量293mJ/cm2、O3投加量0.31mg/L、H2O2投加量1.21mg/L,经验证该模型准确可靠。
关键词：高级氧化UV/H2O2/O3组合技术亚硝基二甲胺响应曲面法
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[2] HE Y,CHENG H.Degradation of N-nitrosodimethylamine(NDMA)and its precursor dimethylamine(DMA)in mineral micropores induced by microwave irradiation[J].Water Research,2016,94:305-314．
[3] QIU Y,BEI E,WANG Y F,et al.One representative water supply system in China with nitrosamine concern:Challenges and treatment strategies,Journal of Environmental Sciences[J].Journal of Environmental Sciences,2020,88:12-20．
[4] BEI E,SHU Y,LI S,et al.Occurrence of nitrosamines and their precursors in drinking water systems around mainland China[J].Water Research,2016,98:168-175．
[5] BEITA-SANDíW,ERSAN M S,UZUN H,et al.Removal of N-nitrosodimethylamine precursors with powdered activated carbon adsorption[J].Water Research,2016,88:711-718．
[6] ERSAN M S,LADNER D A,KARANFIL T.The control of N-nitrosodimethylamine,Halonitromethane,and Trihalomethane precursors by Nanofiltration[J].Water Research,2016,105:274-281．
[7] SGROI M,ROCCARO P,OELKER G L,et al.N-nitrosodimethylamine(NDMA)formation at an indirect potable reuse facility[J].Water Research,2015,70:174-183．
[8] ZHOU C,GAO N,DENG Y,et al.Factors affecting ultraviolet irradiation/hydrogen peroxide(UV/H2O2)degradation of mixed N-nitrosamines in water[J].Journal of Hazardous Materials,2012,231-232(none):43-48．
[9] ZHOU S,ZHU S,SHAO Y,et al.Characteristics of C-,N-DBPs formation from algal organic matter:Role of molecular weight fractions and impacts of pre-ozonation[J].Water Research,2015,72(Sp.Iss.SI):381-390．
[10] SGROI M,ROCCARO P,OELKER G L,et al.N-nitrosodimethylamine(NDMA)formation at an?indirect potable reuse facility[J].Water Research,2015,70:174-183．
[11] MCCURRY D L,KRASNER S W,VON GUNTEN U,et al.Determinants of disinfectant pretreatment efficacy for nitrosamine control in chloraminated drinking water[J].Water Research,2015,84:161-170．
[12] 廖晓斌．某湖泊水中亚硝胺类消毒副产物前体物及其去除特性研究[D]．清华大学,2014．
[13] 杜振齐,王永磊,田立平,等．UV/H2O2工艺降解饮用水中有机微污染物研究进展[J]．山东建筑大学学报,2019,34(4):50-57．
[14] CHU W,GAO N,YIN D,et al.Impact of UV/H2O2preoxidation on the formation of haloacetamides and other nitrogenous disinfection byproducts during chlorination[J].Environmental Science&Technology,2014,48 (20):12190-12198．
[15] SRITHEP S,PHATTARAPATTAMAWONG S.Kinetic removal of haloacetonitrile precursors by photo-based advanced oxidation processes (UV/H2O2,UV/O3,andUV/H2O2/O3)[J].Chemosphere,2017,176:25-31．
[16] 刘津津．不同消毒方式作用藻液生成二甲基亚硝胺(NDMA)的机理研究[D]．泉州：华侨大学,2015．
[17] USEPA.Method 521:determination of nitrosamines in drinking water by solid phase extraction and capillary column gas chromatography with large volume injection and chemical ionization tandem mass spectrometry (MS/MS)[R].Washington,2014．
[18] 李圭白,张杰．水质工程学[M]．第二版．北京：中国建筑工业出版社,2013．
[19] DANIEL L,MCCURRY,STUART W.KRASNER,URS-VON GUNTEN,et al.Determinants of disinfectant pretreatment efficacy for nitrosamine control in chloraminated drinking water[J].Water Research,2015,84:161-170．
[20] SHAH A D,KRASNER S W,LEE C F T,et al.Trade-offs in disinfection byproduct formation associated with precursor preoxidation for control of N-nitrosodimethylamine formation[J].Environmental Science&Technology,2012,46(9):4809-4818．
[21] 薛舜．地下水源饮用水氯代烃曝气吹脱工艺中试研究[D]．济南：山东建筑大学,2019．
[22] MOHAMMED,EVUTI,ABDULLAHI,et al.Integrated air stripping and non-thermal plasma system for the treatment of volatile organic compounds from wastewater:statistical optimization[J].Desalination and Water Treatment,2015,57.
Degradation of NDMA precursor from algae by UV/H2O2/O3 advanced oxidation technology
Abstract: The removal efficiency of NDMA precursor from algae by UV,H2O2 and O3 oxidation alone and UV/H2O2/O3 advanced oxidation technology was compared,and the parameters were optimized by BBD response surface method.The results showed that UV and H2O2 oxidation technology could increase the content of NDMA precursor,while O3 oxidation only had a certain removal effect on NDMA precursor at high dosage,and UV/H2O2/O3 technology could effectively degrade NDMA precursor from algae.The results of response surface optimization showed that the order of the influence degree of each factor on the experimental results was:UV dose>O3 dosage>H2O2 dosage.The optimal parameters of the UV/H2O2/O3 technology for the removal of NDMA precursor from algae were:293mJ/cm2 of UV dose,0.31mg/L of O3 dosage,1.21mg/L of H2O2 dosage,the model was verified to be accurate and reliable.
Keywords: Advanced oxidation; UV/H2O2/O3combination; NDMA; Response surface methodology;
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