生物电极与厌氧污泥协同强化p-CINB还原转化研究
详细信息 查看官网全文
摘要
氯代硝基苯类化合物作为一种重要的化工原料,广泛应用于医药、化工、印染、农药等行业,其化学性质稳定、难生物降解,易在水体沉积物和土壤中积累,最终通过食物链危害人类健康。因此,开发经济高效的氯代硝基苯类废水处理技术显得尤为迫切。论文以对氯硝基苯(p-ClNB)为研究对象,构建多组分批生物电极-厌氧污泥耦合试验体系,研究生物电极与厌氧污泥协同还原转化p-ClNB影响因素与降解途径。结果表明,当外加电压从0.25 V增至0.75 V时,体系硝基还原速率加快,进一步增加电压对p-ClNB还原转化无明显强化;较高的COD浓度可以作为电子供体,促进p-ClNB还原转化为对氯苯胺(p-ClAn)但p-ClAn进一步脱氯缓慢;应用GC-MS与HPLC分析p-ClNB还原脱氯的中间产物,结合相关文献提出p-ClNB还原转化主要途径为:对氯硝基苯→对氯亚硝基苯→对羟基氯苯胺→对氯苯胺。
引文
[1]Liang,B.,Cheng,H.,Van Nostrand,J.D.,Ma,J.,Yu,H.,Kong,D.,Liu,W.,Ren,N.,Wu,L,Wang,A.,Lee,D.,Zhou,J.Microbial community structure and function of Nitrobenzene reduction biocathode in response to carbon source switchover.Water Research,2014,54,137-148.
[2]Chun CL,Payne RB,Sowers KR,et al.Electrical stimulation of microbial PCB degradation in sediment[J].Water Research,2013,47(1):141-152
[3]Klausen J,Ranke J,Schwarzenbach RP.Influence of solution composition and column aging on the reduction of nitroaromatic compounds by zero-valent iron[J].Chemosphere,2001,44(4):511-517.
[4]Kong F,Wang A,Ren HY,et al.Improved dechlorination and mineralization of 4-chlorophenol in a sequential biocathode-bioanode bioelectrochemical system with mixed photosynthetic bacteria[J].Bioresource Technology,2014,158:32-38.
[5]Logan BE,Call D,Cheng S,et al.Microbial electrolysis cells for high yield hydrogen gas production from organic matter[J].Environmental Science&Technology,2008,42(23):8630-8640.
[6]Ma L,Zhang W.Enhanced biological treatment of industrial wastewater with bimetallic zero-valent iron[J].Environmental Science&Technology,2008,42(15):5384-5389.
[7]Shen D,He R,Liu X,et al.Effect of pentachlorophenol and chemical oxygen demand mass concentrations in influent on operational behaviors of upflow anaerobic sludge blanket(UASB)reactor[J].Journal of Hazardous Materials,2006,136(3):645-653.
[8]Shen,J.,Xu,X,Jiang,X,Hua,C.,Zhang,L,Sun,X,Li,J.,Mu,Y.,Wang,L,2014.Coupling of a bioelectrochemical system for p-nitrophenol removal in an upflow anaerobic sludge blanket reactor.Water Research,67,11-18.
[9]Tomska A,Janosz-Rajczyk M.The effect of magnetic gield on wastewater treatment with activated sludge method[J].Environment Protection Engineering,2004,30(4):155-160.
[10]Wang A,Cheng H,Liang B,et al.Efficient reduction of nitrobenzene to aniline with a biocatalyzed cathode[J].Environmental Science&Technology,2011,45(23):10186-10193.
[11]Zhang,Y.,Angelidaki,L,2014.Microbial electrolysis cells turning to be versatile technology:Recent advances and future challenges.Water Research,56,11-25.
[12]Zhu,L,Lin,H.,Qi,J.,Xu,X,Qi,H.,2012.Effect of H_2 on reductive transformation of p-C1NB in a combined ZVI-anaerobic sludge system.Water Research,46,6291-6299.
[13]程浩毅.利用生物电化学系统(BES)去除废水中硝基苯的可行性研究[D].哈尔滨工业大学环境科学与工程,2009.
[14]林海转.零价铁与微生物耦合强化含氯含硝基芳烃类污染物转化和降解研究[D].浙江大学环境工程,2013.
[2]Chun CL,Payne RB,Sowers KR,et al.Electrical stimulation of microbial PCB degradation in sediment[J].Water Research,2013,47(1):141-152
[3]Klausen J,Ranke J,Schwarzenbach RP.Influence of solution composition and column aging on the reduction of nitroaromatic compounds by zero-valent iron[J].Chemosphere,2001,44(4):511-517.
[4]Kong F,Wang A,Ren HY,et al.Improved dechlorination and mineralization of 4-chlorophenol in a sequential biocathode-bioanode bioelectrochemical system with mixed photosynthetic bacteria[J].Bioresource Technology,2014,158:32-38.
[5]Logan BE,Call D,Cheng S,et al.Microbial electrolysis cells for high yield hydrogen gas production from organic matter[J].Environmental Science&Technology,2008,42(23):8630-8640.
[6]Ma L,Zhang W.Enhanced biological treatment of industrial wastewater with bimetallic zero-valent iron[J].Environmental Science&Technology,2008,42(15):5384-5389.
[7]Shen D,He R,Liu X,et al.Effect of pentachlorophenol and chemical oxygen demand mass concentrations in influent on operational behaviors of upflow anaerobic sludge blanket(UASB)reactor[J].Journal of Hazardous Materials,2006,136(3):645-653.
[8]Shen,J.,Xu,X,Jiang,X,Hua,C.,Zhang,L,Sun,X,Li,J.,Mu,Y.,Wang,L,2014.Coupling of a bioelectrochemical system for p-nitrophenol removal in an upflow anaerobic sludge blanket reactor.Water Research,67,11-18.
[9]Tomska A,Janosz-Rajczyk M.The effect of magnetic gield on wastewater treatment with activated sludge method[J].Environment Protection Engineering,2004,30(4):155-160.
[10]Wang A,Cheng H,Liang B,et al.Efficient reduction of nitrobenzene to aniline with a biocatalyzed cathode[J].Environmental Science&Technology,2011,45(23):10186-10193.
[11]Zhang,Y.,Angelidaki,L,2014.Microbial electrolysis cells turning to be versatile technology:Recent advances and future challenges.Water Research,56,11-25.
[12]Zhu,L,Lin,H.,Qi,J.,Xu,X,Qi,H.,2012.Effect of H_2 on reductive transformation of p-C1NB in a combined ZVI-anaerobic sludge system.Water Research,46,6291-6299.
[13]程浩毅.利用生物电化学系统(BES)去除废水中硝基苯的可行性研究[D].哈尔滨工业大学环境科学与工程,2009.
[14]林海转.零价铁与微生物耦合强化含氯含硝基芳烃类污染物转化和降解研究[D].浙江大学环境工程,2013.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |