煤制气废水酚负荷对反硝化污泥的抑制效应研究

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• 论文作者：张玉莹 ; 陈秀荣 ; 徐春燕 ; 李佳慧 ; 徐燕
• 年：2016
• 作者机构：华东理工大学资源与环境工程学院;
• 论文关键词：煤制气废水 ; 反硝化 ; 总酚 ; 间苯二酚 ; 对苯二酚
• 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：X784
• 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：8
• 文件大小：404k
• 原文格式：O
• 会议级别：全国

摘要

在高负荷酚类污染物的煤制气废水中,人们往往关注酚类对硝化菌的活性和效率抑制,对反硝化过程的抑制研究不多。为了探明煤制气废水中酚类化合物对反硝化脱氮效率和污泥活性的抑制作用,以缺氧反硝化小试系统为对象,考察了不同酚负荷以及不同酚种类对反硝化效率(NO_3~--N和NO_2~--N去除效率)和污泥活性的影响。结果表明:当总酚浓度从50mg·L~(-1)提高到200mg·L~(-1)时,NO_3~--N和NO_2~--N的去除率分别由83%和80.6%降至55%和25%。另外,随着酚本身难降解性(苯酚<间苯二酚<对苯二酚)的增强,其对反硝化的抑制也在增强,脱氢酶活性越低且过氧化氢酶活性越高。为了降低总酚中难降解性更强的酚类对反硝化过程的影响,使之达到污泥生化处理可适应的范围,试验考察了HRT=8h,SRT=20d的厌氧水解酸化池处理效果,通过不同浓度的对苯二酚对污泥进行驯化,形成对苯二酚优势降解菌,适当降低酚负荷以利于后续的生化处理。

引文

[1]X.F.Sun,C.W.Wang,Y.B.Li,W.G.Wang,J.Wei,Treatment of phenolic wastewater by combined UF and NF/RO processes,Desalination 355(1)(2015)68-74.
    [2]D.Y.Xu,Z.Yang,Cross-linked tyrosinase aggregates for elimination of phenolic compounds from wastewater,Chemosphere 92(4)(2013)391-398.
    [3]X.Qu,M.Tian,B.Q.Liao,A.C.Chen,Enhanced electrochemical treatment of phenolic pollutants by an effective adsorption and release process,Electrochimica Acta 55(19)(2010)5367-5374.
    [4]X.S.Ma,N.J.Li,J.Jiang,Q.F.Xu,H.Li,L H.Wang,J.M.Lu,Adsorption-synergic biodegradation of high-concentrated phenolic water by Pseudomonas putida immobilized on activated carbon fiber,Journal of Environmental Chemical Engineering 1(9)(2013)466-472.
    [5]H.Wang,Q.Q.Guan,J.X.Li,T.H.Wang,Phenolic wastewater treatment by an electrocatalytic membrane reactor,Catalysis Today 236(1)(2014)121-126.
    [6]Q Zhao,H.J.Han,C.Y.Xu,H.F.Zhuang,F.Fang,L H.Zhang,Effect of powdered activated carbon technology on short-cut nitrogen removal for coal gasification wastewater,Bioresource Technology 142(8)(2013)179-185.
    [7]W Wang,H.J.Han,M.Yuan,H.Q.Li,Enhanced anaerobic biodegradability of real coal gasification wastewater with methanol addition,Journal of Environmental Sciences 22(12)(2010)1868-1874.
    [8]Z.X.Wang,X.C.Xu,Z.Gong,F.L Yang,Removal of COD,phenols and ammonium from Lurgi coal gasification wastewater using A~2O-MBR system,Journal of Hazardous Materials 235-236(15)(2012)78-84.
    [9]Z.J.Yu,Y.Chen,D.C.Feng,Process development simulation and industrial implementation of a new coal-gasification wastewater treatment installation for phenol and ammonia removal,Industrial and Engineering Chemistry Research 49(6)(2010)2874-2881.
    [10]Q.L Ge,X.P.Yue,G.Y.Wang,Simultaneous heterotrophic nitrification and aerobic denitrification at high initial phenol concentration by isolated bacterium Diaphorobacter sp.PD-7,Chinese Journal of Chemical Engineering 23(5)(2015)835-841.
    [11]H.Q.Li,H.J.Han,M.A.Du,W.Wei,Inhibition and recovery of nitrification in treating real coal gasification wastewater with moving bed biofilm reactor,Journal of Environmental Sciences 23(4)(2011)568-574.
    [12]R.Neufeld,J.Greenfield,B.Rieder,Temperature cyanide and phenolic nitrification inhibition,Water Research20(5)(1986)633-642.
    [13]H.J.Lu,K.Chandran,D.Stensel,Microbial ecology of denitrification in biological wastewater treatment,Water Research,64(12)(2014)237-254.
    [14]M.Eiroa,A.Vilar,L Amor,C.Kennes,M.C.Veiga,Biodegradation and effect of formaldehyde and phenol on the denitrification process.Water Research 39(2-3)(2005)449-455.
    [15]韦余芳.含氮酚类废水缺氧反硝化生物降解特性研究[D].太原理工大学,2012.
    [16]S.Y.Jia,H.J.Han,H.F.Zhuang,B.L Hou,The pollutants removal and bacterial community dynamics relationship within a full-scale British Gas/Lurgi coal gasification wastewater treatment using a novel system,Bioresource Technology 200(2016)103-110.
    [17]国家环境保护总局.水和废水监测分析方法[M].(第四版).北京:中国环境科学出版社,2002.105-210.
    [18]崔璟宜.活性污泥中过氧化氢酶活性的测定及影响因素分析[D].吉林建筑大学,2013.
    [19]伍昌年,郑力菲,汤利华,等.投加粉煤灰对一体式膜生物反应器活性污泥性能的影响[J].工业水处理,2012,32(11):32-35.
    [20]Keiko K H.Inhibition of the activities of 6-galactosidase and dehydrogenases of activated sludge by heavy metals[J].Water Research,1986,20(4):491-494.