全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2015 

氯胺及其与二氧化氯联用对原水管道溶解性有机物降解的影响

DOI: 10.11949/j.issn.0438-1157.20141708, PP. 2262-2267

Keywords: 原水管道,溶解性有机物,降解,恢复,氧化

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用环状反应器模拟原水输水管道,考察氯胺(NH2Cl)及其与二氧化氯联用(NH2Cl/ClO2)对溶解性有机物(DOM)、溶解性有机碳(DOC)和UV254降解以及有机物荧光特性的影响。结果表明:NH2Cl或NH2Cl/ClO2对DOC、UV254和DOM的降解均产生较大的影响。相比NH2Cl,NH2Cl/ClO2的影响更大,但是有机物降解的恢复速度没有明显差异,DOC、UV254和DOM的降解分别在停止投加氧化剂的第5d、4d和1d恢复。投加氧化剂后,芳香族有机物以向易生物降解的极性有机物的转化为主,溶解性有机物的可生物降解能力增加。NH2Cl和NH2Cl/ClO2作用后,类蛋白质物质以及紫外区类腐殖质类物质明显减少。NH2Cl/ClO2更易破坏有机物中的芳香族化合物的结构,而NH2Cl氧化使得有机物分子结构中羰基、羟基、羧基和胺基等官能团增加,从而有机物可生物降解能力较强。NH2Cl和NH2Cl/ClO2作用后,有机物降解作用可恢复至比未加氧化剂更高的水平,基于卤代副产物生成的考虑,相比NH2Cl,NH2Cl/ClO2更适合用于原水输水管道的氧化。

References

[1]  Luo J, Liang H, Yan L, et al. Microbial community structures in a closed raw water distribution system biofilm as revealed by 454-pyrosequencing, analysis and the effect of microbial biofilm communities on raw water quality [J]. Bioresource Technology, 2013, 148: 189-195.
[2]  Qu Zhijun (曲志军), You Zuoliang (尤作亮), Xu Hongfu (徐洪福). Variation of raw water quality in distribution pipes [J]. Water Technology (供水技术), 2007, 2(1): 5-9.
[3]  Zhao Lele(赵乐乐), Li Xing(李星), Yang Yanling(杨艳玲), et al. Destruction and restorative of nitrification performance in aqueduct by pre-chlorination [J]. CIESC Journal (化工学报), 2013, 64(4): 1403-1407.
[4]  Magara Y, Matsui Y, Goto Y, et al. Invasion of the non-indigenous nuisance mussel, Limnoperna fortunei, into water supply facilities in Japan [J]. Journal of Water Supply Research Technology-Aqua, 2001, 50(3): 113-124.
[5]  Stanislawiak U R, Swietlik J, Dabrowska A, et al. Biodegradability of organic by-products after natural organic matter oxidation with ClO2-case study [J]. Water Research, 2004, 38: 1044-1054.
[6]  Srinivasan S, Harrington G W, Xagoraraki I, et al. Factors affecting bulk to total bacteria ratio in drinking water distribution systems [J]. Water Research, 2008, 42(13): 3393-3404.
[7]  Zhou Zhiwei (周志伟), Yang Yanling(杨艳玲), Li Xing (李星), et al. Fluorescence characteristics of dissolved organic matter in coagulation process of recycling filter backwash water [J]. CIESC Journal (化工学报), 2013, 64(5): 1825-1832.
[8]  Codony F, Morat J, Mas J. Role of discontinuous chlorination on microbial production by drinking water biofilms [J]. Water Research, 2005, 39:1896-1906.
[9]  Xue Z, Sendamangalam V R, Gruden C L, et al. Multiple roles of extracellular polymeric substances on resistance of biofilm and detached clusters [J]. Environmental Science & Technology, 2012, 46: 13212-13219.
[10]  Zhu Yongjuan (朱永娟), Yang Yanling(杨艳玲), Li Xing (李星), et al. Occurrence of microorganism and variation of water quality in long distance water delivery pipeline [J]. China Water & Wastewater (中国给水排水), 2012, 28(21): 34-36.
[11]  Fass S, Block J C, Boualam M, et al. Release of organic matter in a discontinuously chlorinated drinking water network [J]. Water Research, 2003, 37: 493-500.
[12]  Coble P G. Characterization of marine and terrestrial DOM in seawater suing excitation-emission matrix spectroscopy [J]. Marine Chemistry, 1996, 51(4): 325-346.
[13]  Beggs K M H, Summers R S, McKnight D M. Characterizing chlorine oxidation of dissolved organic matter and disinfection by-product formation with fluorescence spectroscopy and parallel factor analysis [J]. Journal of Geophysical Research: Biogeosciences, 2009, 114: G4.
[14]  Yang X, Guo W, Lee W, et al. Formation of disinfection byproducts upon chlorine dioxide preoxidation followed by chlorination or chloramination of natural organic matter [J]. Chemosphere, 2013, 91(11): 1477-1485.
[15]  Zhou Z, Yang Y, Li X, et al. An insight into dissolved organic matter removal characteristics of recycling filter backwash water: a comparative study [J]. Separation Science and Technology, 2014, 49(18): 2981-2989.
[16]  Lyon B A, Cory R M, Weinberg H S, et al. Changes in dissolved organic matter fluorescence and disinfection byproduct formation from UV and subsequent chlorination/chloramination [J]. Journal of Hazardous Materials, 2014, 264: 411-419.
[17]  Korshin G V, Kumke M U, Li C W, et al. Influence of chlorination on chromophores and fluorophores in humic substances [J]. Environmental Science & Technology, 1999, 33 (8): 1207-1212.
[18]  Norton C D, LeChevallier M W. Chloramination: its effect on distribution system water quality [J]. Journal of American Water Works Association, 1997, 86(7): 66-77.
[19]  Xiang Kun (相坤), Yang Yanling(杨艳玲), Li Xing (李星), et al. Monochloramine combined with chlorine dioxide on ammonia oxidation bacteria [J]. Journal of Beijing University of Technology (北京工业大学学报), 2013, 39(11):1722-1733.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133