河网水溶解性有机物和氨氮在净水过程中的去除
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摘要
对以微污染河网水为原水的净水厂各处理单元去除溶解性有机碳(DOC)和氨氮的效果进行分析。采用三维荧光分光光度计,并结合平行因子分析法(PARAFAC)解析溶解性有机物(DOM)中荧光类有机物的变化情况。氨氮的去除主要集中在预处理曝气生物池,去除率达到63.2%。混凝沉淀、过滤和臭氧-活性炭对DOC均有去除效能,其中常规处理工艺对DOC有较大贡献,去除率达57.2%。但生物预处理和常规处理均不能有效去除荧光类有机物。臭氧—活性炭能有效去除类色氨酸、类酪氨酸和类腐殖质等荧光类有机物,其荧光峰值的削减幅度分别可达82.1%、63.3%和61.6%。结果表明,生物预处理、常规净水工艺和臭氧—活性炭深度处理组合工艺才能保证供水的安全。
The dissolved organic carbon(DOC)and ammonia nitrogenremoval by each processing unit in a water treatment plant whose source water was from micro-polluted river-net.Fluorescent dissolved organic matters were detected by three-dimensional fluorescence spectrophotometer,combining with parallel factor analysis(PARAFAC).The removal of ammonia nitrogen was mainly in the biological aeration tank,the removal rate reached 63.2%.The DOC was removed in coagulation-sedimentation,filer and ozone-activated carbon,and the conventional treatment process had a higher removal rate of 57.2%.The pre-treatment and conventional treatment process hardly removed fluorescent dissolved organic matters.However,ozone-activated carbon could effectively remove fluorescent dissolved organic matters like tryptophan-like,tyrosine-like and humic-like substance whose fluorescent peaks removal rates respectively reached 82.1%,63.3%and 61.6%.The result showed that combining conventional treatment with biological pre-treatment and advanced ozone-activated carbon could guarantee safety of water supply.
The dissolved organic carbon(DOC)and ammonia nitrogenremoval by each processing unit in a water treatment plant whose source water was from micro-polluted river-net.Fluorescent dissolved organic matters were detected by three-dimensional fluorescence spectrophotometer,combining with parallel factor analysis(PARAFAC).The removal of ammonia nitrogen was mainly in the biological aeration tank,the removal rate reached 63.2%.The DOC was removed in coagulation-sedimentation,filer and ozone-activated carbon,and the conventional treatment process had a higher removal rate of 57.2%.The pre-treatment and conventional treatment process hardly removed fluorescent dissolved organic matters.However,ozone-activated carbon could effectively remove fluorescent dissolved organic matters like tryptophan-like,tyrosine-like and humic-like substance whose fluorescent peaks removal rates respectively reached 82.1%,63.3%and 61.6%.The result showed that combining conventional treatment with biological pre-treatment and advanced ozone-activated carbon could guarantee safety of water supply.
引文
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17 Coble P.Characterization of marine and terrestrial DOM in seawater using excitation-emission matrix spectroscopy.Marine\sChemistry,1996,51(4):325~346(22)
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21 费春楠.饮水消毒技术的应用与发展.中国消毒学杂志,2014,(6):620~623
2 冯华军,胡立芳,单丹,等.水体腐殖质危害及去除的研究进展.科技通报,2008,24(4):553~558
3 王占生,刘文君.微污染水源饮用水处理.北京:中国建筑工业出版社,1999.68~76
4 王华成,吕锡武.微污染水源水饮用水处理研究进展.净水技术,2005,24(1):30~32
5 Xu B,Gao N,Sun X,et al.Characteristics of organic material\sin Huangpu River and treatability with the O3-BAC process.Separation and Purification Technology,2007,57(2):348~355
6 张燕,郑国兴,查人光,等.高氨氮和高有机物污染河网原水组合处理技术集成与示范.2013,39(3):17~20
7 宋澄杰,杜尔登,王利平,等.饮用水预处理和深度处理工艺对有机物去除的特征研究.中国农村水利水电,2014,(10):13~18(23)
8 Oriol G,Benot L,Albert T,et al.Distribution of dissolved organic\smatter fractions along several stages of a drinking water treatment\splant.Journal of Water Process Engineering,2015,6:64~71
9 谷雪蔷,付守文,李大为,等.中国部分城市自来水的总有机碳测定.中国环境监测,2006,22(6):29~31
10 Stedmon C,Bro R.Characterizing dissolved organic matter fluorescence with parallel factor analysis:a tutorial.Limnology\sand Oceanography:Methods,2008,6(11):572~579
11 Duguet J,Jaulin L,Aurelle Y,et al.Experimental study of ozone\saction on glycine.Ozone:Science&Engineering:The Journal of\sthe International Ozone Association,2008,2(2):105~122
12 Duguet J P,Brodard E,Dussert&J.Mallevialle B.Improvement in\sthe effectiveness of ozonation of drinking water through the use of\shydrogen peroxide.Ozone:Science&Engineering:The Journal of\sthe International Ozone Association,2008,7(3):241~258
13 Lacheur R M L,Glaze W H.Reactions of ozone and hydroxyl\sradicals with serine.Environmental Sciences&Technology,1996,30(4):1072~1080
14 Berger P,KarpelVelLeitner N,DoréM,et al.Ozone and hydroxyl radicals induced oxidation of glycine.Water Research,1999,33(2):433~441
15 高连敬,杜尔登,崔旭峰,等.三维荧光结合荧光区域积分法评估净水厂有机物去除效果.给水排水,2012,38(10):51~56
16 姚璐璐,涂响,于会彬,等.三维荧光区域积分评估城市污水中溶解性有机物去除.环境工程学报,2013,7(2):411~416
17 Coble P.Characterization of marine and terrestrial DOM in seawater using excitation-emission matrix spectroscopy.Marine\sChemistry,1996,51(4):325~346(22)
18 郝瑞霞,曹可心,邓亦文.城市污水处理过程中有机污染物三维荧光特性的变化规律.分析测试学报,2007,26(6):789~792
19 Zhao Z,Gu J,Li H,et al.Disinfection characteristics of the dissolved organic fractions at several stages of a conventional drink-ing water treatment plant in Southern China.Joumal of hazardous materials,2009,172:1093~1099
20 Zhang T,Lu J,Ma J,et al.Comparative study of ozonation and\ssynthetic goethite-catalyzed ozonation of individual NOM fractions isolated and fractionated from a filtered river water.Water\sResearch,2008,42:1563~1570
21 费春楠.饮水消毒技术的应用与发展.中国消毒学杂志,2014,(6):620~623