纳米ZnO对一体化OCO工艺处理污水的影响研究
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- 论文作者：刘正辉 ; 周慧芳 ; 李德豪 ; 殷旭东 ; 毛玉凤 ; 陈文
- 年：2016
- 作者机构：广东石油化工学院环境与生物工程学院;广东省石油化工资源清洁利用工程技术研究中心;成都理工大学材料与化学化工学院;
- 论文关键词：纳米ZnO ; 一体化OCO工艺 ; 污水处理 ; 脱氮除磷 ; 富集
- 会议召开时间：2016-10-14
- 会议录名称：2016中国环境科学学会学术年会论文集（第二卷）
- 语种：中文
- 分类号：X703.1
- 学会代码：HJKP
- 会议名称：中国环境科学学会2016年学术年会
- 会议地点：中国海南海口
- 主办单位：中国环境科学学会
- 学会名称：中国环境科学学会
- 页数：7
- 文件大小：379k
- 原文格式：O
- 会议级别：全国
摘要
通过稳定运行一体化OCO工艺,研究了纳米ZnO长期暴露条件下系统处理污水过程中的脱氮、除磷和有机物降解效果受到的影响,并探讨了活性污泥对纳米ZnO的去除效能。结果表明,在工艺运行80 d的暴露时间里,系统脱氮除磷具有剂量效应:进水纳米ZnO浓度低于0.8 mg/L时,NH_4~+-N、TN、TP的去除有轻微的促进作用,1.5mg/L,4.0 mg/L对系统的脱氮除磷有明显的抑制作用。系统对纳米ZnO的响应表现硝化过程比反硝化过程敏感度高。活性污泥可以通过富集作用去除水中的纳米ZnO;纳米ZnO浓度为4.0 mg/L条件下的富集强度可高达1.74 mg/g MLSS。
引文
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[2]Som C,Berges M,Chaudhry Q,et al.The importance of life cycle concepts for the development of safe nanoproducts[J].Toxicology,2010,269(2-3):160-169.
[3]Kim B,Park C-S,Murayama M,et al.Discovery and characterization of silver sulfide nanoparticles in final sewage sludge products[J].Environmental Science&Technology,2010,44(19):7509-7514.
[4]Westerhoff PK,Kiser MA,Hristovski K.Nanomaterial removal and transformation during biological wastewater treatment[J].Environmental Engineering Science,2013,30(3):109-117.
[5]Limbach LK,Bereiter R,Muller E,et al.Removal of oxide nanoparticles in a model wastewater treatment plant:influence of agglomeration and surfactants on clearing efficiency[J].Environmental Science&Technology,2008,42(15):5828-5833.
[6]KiserMA,Westerhoff P,BennT,et al.Titanium nanomaterial removal and release from wastewater treatment plants[J].Environmental Science&Technology,2009,43(17):6757-6763.
[7]Gottschalk F,Sonderer T,Scholz RW,et al.Modeled environmental concentrations of engineered nanomaterials(Ti02,ZnO,Ag,CNT,Fullerenes)for different regions[J].Environmental Science&Technology,2009,43(24):9216-9222.
[8]Liu G,Wang D,Wang J,et al.Effect of ZnO particles on activated sludge:role of particle dissolution[J].Science of the Total Environment,2011,409(14):2852-2857.
[9]Liang Z,Das A,Hu Z.Bacterial response to a shock load of nanosilver in an activated sludge treatment system[J].Water Research,2010,44(18):5432-5438.
[10]Gecen F,Semerci N,Geyik AG.Inhibitory effects of Cu,Zn,Ni and Co on nitrification and relevance of speciation[J].Journal of Chemical Technology&Biotechnology,2010,85(4):520-528.
[11]Cabrera A,Fernandez S,Mirada F,et al.Effects of copper and zinc on the activated sludge bacteria growth kinetics[J].Water Research,1998,32(5):1355-1362.
[12]Adams LK,Lyon DY,Alvarez PJJ.Comparative eco-toxicity of nanoscale TiO2,SiO2,and ZnO water suspensions[J].Water Research,2006,40(19):3527-3532.
[13]Batley GE,Kirby JK,McLaughlin MJ.Fate and risks of nanomaterials in aquatic and terrestrial environments[J].Accounts of Chemical Research,2013,46(3):854-862.
[14]Zheng X,Wu R,Chen Y.Effects of ZnO nanoparticles on wastewater biological nitrogen and phosphorus removal[J].Environmental Science&Technology,2011,45(7):2826-2832.
[15]Hou L,Xia J,Li K,et al.Removal of ZnO nanoparticles in simulated wastewater treatment processes and its effects on COD and NH4+-N reduction[J].Water Science&Technology,2013,67(2):254-260.
[16]黄菲,王志伟,梅晓洁,等.纳米颗粒短期暴露对MBR中微生物特性及膜污染的影响[J].水处理技术,2013,(08):14-18+26.
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[18]Puay N-Q,Qiu G,Ting Y-P.Effect of Zinc oxide nanoparticles on biological wastewater treatment in a sequencing batch reactor[J].Journal of Cleaner Production,2015,88:139-145.
[19]Li D,Mao Y,Liu Z,et al.Simultaneous removal of nitrogen,phosphorus and COD in an integrated OCO reactor[J].Environmental Technology,2014,35(20):2628-2633.
[20]周慧芳,陈文,李德豪,等.利用ORP和pH控制双侧沟式一体化OCO工艺污水处理过程[J].现代化工,2015,(06):160-163+165.
[21]国家环境保护总局.水和废水监测分析方法(第四版)[M].北京:中国环境科学出版社,2002.
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[23]Hildebrand H,Mackenzie K,Kopinke F-D.Pd/Fe304 nano-catalysts for selective dehalogenation in wastewater treatment processes—Influence of water constituents[J].Applied Catalysis B;Environmental,2009,91(1-2):389-396.
[24]Eduok S,Hendry C,Ferguson R,et al.Insights into the effect of mixed engineered nanoparticles on activated sludge performance[J].FEMS Microbiology Ecology,2015,91(7).
[25]任志群.纳米ZnO对污水生物脱氮除磷系统影响的研究[D]:哈尔滨工业大学,2013.
[26]陈国炜,席鹏鸽,陈慧.Cu2+和Zn2+对活性污泥生长动力学的影响[J].合肥工业大学学报(自然科学版),2005,(02):150-154.
[27]印华斌,李晓晨,赵丽.Zn2+对SBR污水处理系统中污泥活性的影响[J].生态环境学报,2009,(02):480-483.
[28]Chen J,Tang Y-Q,Li Y,et al.Impacts of different nanoparticles on functional bacterial community in activated sludge[J].Chemosphere,2014,104:141-148.
[29]Mino T,van Loosdrecht MCM,Heijnen JJ.Microbiology and biochemistry of the enhanced biological phosphate removal process[J].Water Research,1998,32(11):3193-3207.
[30]Lombi E,Donner E,Tavakkoli E,et aL Fate of zinc oxide nanoparticles during anaerobic digestion of wastewater and post-treatment processing of sewage sludge[J].Environmental Science&Technology,2012,46(16):9089-9096.
[31]Kiser MA,Ryu H,Jang H,et al.Biosorption of nanoparticles to heterotrophic wastewater biomass[J].Water Research,2010,44(14):4105-4114.
[32]Limbach LK,Bereiter R,M(u|¨)ller E,et al.Removal of oxide nanoparticles in a model wastewater treatment plant:influence of agglomeration and surfactants on clearing efficiency[J].Environmental Science&Technology,2008,42(15):5828-5833.
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