混凝预氧化过滤工艺对冬季低温微污染地下水处理
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摘要
目的确定最佳混凝预氧化过滤工艺条件,解决低温微污染地下水处理难度较大的问题.方法在低温实验室配制微污染地下水,通过投加混凝剂,ClO_2、NaClO两种预氧化剂以及锰砂、陶粒锰砂二级过滤,以Fe、Mn、COD_(Mn)、氨氮(NH_4~+-N)、浊度等指标为参照,对比两种预氧化剂分别和两种滤料二级过滤的运行效果.结果混凝-二氧化氯预氧化-陶砂锰砂二级过滤工艺对Mn的去除效果在标准值边缘,Fe、COD_(Mn)、NH_4~+-N、浊度等指标的质量浓度均满足《生活饮用水卫生标准检测方法》(GB/T5750—2006),该工艺对微污染地下水有较高的去除率.结论混凝-二氧化氯预氧化-陶砂锰砂二级过滤工艺对低温微污染地下水处理效果较好.
The best operating conditions for coagulation oxidation filtration process is determined to solve the problem of low-temperature micro-polluted groundwater treatment. All experiments were carried out in low-temperature laboratory. The micro-polluted groundwater was treated by adding coagulant and two pre-oxidant-ClO_2,NaClO,then through manganese sand,ceramist manganese sand filter. Fe,Mn,CODMn,ammonia nitrogen( NH_4~+-N),turbidity and other indicators were detected to obtain the best process. The results showthat the concentration of Mn in the micro-polluted groundwater treated by the process of coagulation + chlorine dioxide oxidation + secondary filtration of ceramic sand manganese sand is on the edge of the standard,Fe,CODMn,NH_4~+-N,the concentration of the turbidity and other indicators meet the "drinking water health standard testmethod"( GB/T5750—2006). So the process of coagulation + chlorine dioxide oxidation + secondary filtration of ceramic sand manganese sand can be adopted to treat micro-polluted groundwater under lowtemperature.
The best operating conditions for coagulation oxidation filtration process is determined to solve the problem of low-temperature micro-polluted groundwater treatment. All experiments were carried out in low-temperature laboratory. The micro-polluted groundwater was treated by adding coagulant and two pre-oxidant-ClO_2,NaClO,then through manganese sand,ceramist manganese sand filter. Fe,Mn,CODMn,ammonia nitrogen( NH_4~+-N),turbidity and other indicators were detected to obtain the best process. The results showthat the concentration of Mn in the micro-polluted groundwater treated by the process of coagulation + chlorine dioxide oxidation + secondary filtration of ceramic sand manganese sand is on the edge of the standard,Fe,CODMn,NH_4~+-N,the concentration of the turbidity and other indicators meet the "drinking water health standard testmethod"( GB/T5750—2006). So the process of coagulation + chlorine dioxide oxidation + secondary filtration of ceramic sand manganese sand can be adopted to treat micro-polluted groundwater under lowtemperature.
引文
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[11]陈坚,黄国鑫,刘菲,等.天然沸石去除地下水中氨氮的研究[J].安徽农业科学,2011,39(10):6020-6022.(CHEN Jian,HUANGGuoxin,LIU Fei,et al.Study on removal of ammonium-ntitrogen in groundwater by natural zeolites[J]. Journal of Anhui agricultural sciences,2011,39(10):6020-6022.)
[12]张春娜.地下水中原生铁锰与微污染物质在曝气接触氧化过滤中的拮抗作用[D].沈阳:沈阳建筑大学,2011.(ZHANGChunna. Antagonistic effects of rawiron and manganese in groundwater and micropollutants in aeration contact oxidation filtration[D]. Shenyang:Shenyang Jianzhu University,2011.)
[13]闫谞.三级接触氧化过滤法处理复合型微污染地下水效能试验[D].沈阳:沈阳建筑大学,2013.(YAN Xu. Performantion the treatment of compound micro-polluted groudwater with three-stage contact oxidation filtration[D].Shenyang:Shenyang Jianzhu University,2013.)
[14] VESCHETTI E,CITTADINI B,MARESCA D,et al. Inorganic by-products in waters disinfected with chlorine dioxide[J]. Microchemicaljournal,2005,79(1):165-170.
[15] MIYOUNGL,JUMI K,GWANGPYU K. Disinfection kinetics of murine norovirus using chlorine and chlorine dioxide[J]. Water research,2010,44(10):3243-3251.
[16] SHAYDULLINA GM, SINIKOVA N A,LEBEDEV A T. Reaction of ortho-methoxybenzoic acid with the water disinfecting agents ozone,chlorine and sodium hypochlorite[J].Environmental chemistry letters,2005,3(1):1-5.
[17] LEBEDEV A T,SHAYDULLINA GM,SINIKOVA N A,et al. GC-MS comparison of the behavior of chlorine and sodium hypochlorite towards organic compounds dissolved in water[J]. Water research,2004,38(17):3713-3718.
[2] CARLTON B D,BASARAN A H,NEAEZZAL E,et al. Reproductive effects in long-Evans rats exposed to chlorine dioxide[J]. Environmental research,1991,56(2):170.
[3] ELLIS D,BOUCHARD C,LANTAGNE G.Removal of iron and manganese from groundwater by oxidation and mierofiltration[J]. Desalination,2010,130(3):255-264.
[4] CHANGC Y,HSIEH Y H,LIN Y M,et al.The oragnic precursors affecting the formation of disinfection by-products with chlorine dioxide[J]. Chemosphere,2001,44(5):1153-1158.
[5]陈心凤.接触氧化法和吸附法对水中铁锰的去除试验研究[D].浙江:浙江大学,2011.(CHEN Xinfeng. Studv on removal of iron and manganese inaqueous by contact oxidation and adsorption[D]. Zhejiang:Zhejiang University,2011.)
[6]何涛,鄂学礼,王红伟,等.二氧化氯水消毒副产物的生成规律及其影响因素研究[J].环境与健康杂志,2008,25(2):101-103.(XU Tao,E Xueli,WANGHongwei,et al. Development of chlorite and influencing factors in drinking water treatment with chlorine dioxide[J]. Journal of environment and health,2008,25(2):101-103.)
[7]赵秀春,王见成,孟春霞.青岛市地下水中硝酸盐氮的污染及其影响因素分析[J].水文,2008(5):94-96.(ZHAO Xiuchun,WANGJiancheng,MENGChunxia. Analysis of nitrate nitrogen pollution in groundwater in Qingdao city and its influencing factors[J]. Journal of China hydrology,2008(5):94-96.)
[8]刘辉,张玉先,包承忠.全流程生物氧化法处理微污染原水研究[J].中国给水排水,2002(5):18-22.(LIU Hui,ZHANGYuxian,BAO Chengzhong. Study on the use of entire process biological oxidation formicropolluted rawwater treatment[J]. China water&wastewater,2002(5):18-22.)
[9]张文妍,朱亮,薛红琴.微污染水源水生物预处理氨氮去除影响因素探讨[J].给水排水,2002,28(11):1-3.(ZHANGWenyan, ZHU Liang, XUE Hongqin. Influencing factors on ammonia removal in biological pre-treatment of slightly polluted rawwater[J]. Water&wastewater engineering,2002,28(11):1-3.)
[10]周国华,完颜华,刘艳球,等.微污染水源中的氨氮及其处理技术[J].环境科学与管理,2006(6):91-93.(ZHOU Guohua,WAN Yanhua,LIU Yanqiu,et al. Ammonia-nitrogen and its treatment in micro-polluted water source[J]. Environmental science and management,2006(6):91-93.)
[11]陈坚,黄国鑫,刘菲,等.天然沸石去除地下水中氨氮的研究[J].安徽农业科学,2011,39(10):6020-6022.(CHEN Jian,HUANGGuoxin,LIU Fei,et al.Study on removal of ammonium-ntitrogen in groundwater by natural zeolites[J]. Journal of Anhui agricultural sciences,2011,39(10):6020-6022.)
[12]张春娜.地下水中原生铁锰与微污染物质在曝气接触氧化过滤中的拮抗作用[D].沈阳:沈阳建筑大学,2011.(ZHANGChunna. Antagonistic effects of rawiron and manganese in groundwater and micropollutants in aeration contact oxidation filtration[D]. Shenyang:Shenyang Jianzhu University,2011.)
[13]闫谞.三级接触氧化过滤法处理复合型微污染地下水效能试验[D].沈阳:沈阳建筑大学,2013.(YAN Xu. Performantion the treatment of compound micro-polluted groudwater with three-stage contact oxidation filtration[D].Shenyang:Shenyang Jianzhu University,2013.)
[14] VESCHETTI E,CITTADINI B,MARESCA D,et al. Inorganic by-products in waters disinfected with chlorine dioxide[J]. Microchemicaljournal,2005,79(1):165-170.
[15] MIYOUNGL,JUMI K,GWANGPYU K. Disinfection kinetics of murine norovirus using chlorine and chlorine dioxide[J]. Water research,2010,44(10):3243-3251.
[16] SHAYDULLINA GM, SINIKOVA N A,LEBEDEV A T. Reaction of ortho-methoxybenzoic acid with the water disinfecting agents ozone,chlorine and sodium hypochlorite[J].Environmental chemistry letters,2005,3(1):1-5.
[17] LEBEDEV A T,SHAYDULLINA GM,SINIKOVA N A,et al. GC-MS comparison of the behavior of chlorine and sodium hypochlorite towards organic compounds dissolved in water[J]. Water research,2004,38(17):3713-3718.
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