改性矿物吸附法处理垃圾渗滤液中试研究
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摘要
本试验主要利用双十八烷基二甲基氯化铵(DODMAC)改性膨润土在一定条件下能够低成本吸附处理垃圾渗滤液,发现早中期垃圾渗滤液处理后COD去除率达69.16%～70.77%,NH_3-N去除率达94.02%～95.74%;中晚期垃圾渗滤液处理后COD去除率达89.09%～90.64%,NH_3-N去除率达97.47%～97.89%;MBR出水深度处理后COD去除率87.27%～93.33%,NH_3-N去除率达42.68%～61.04%,出水均可直接排入城市污水处理管网。
In this experiment, bentonite modified by Dioctadecyl Dimethyl Ammonium Chloride(DODMAC) was used to adsorb landfill leachate at low cost under certain conditions. The results showed that the COD removal rate and NH_3-N removal rate were 69.16 %～70.77 % and 94.02 %～95.74 % respectively in the early and middle stages of landfill leachate treatment, 89.09 %～90.64 % and 97.47 %～97.89 % respectively in the middle and late stages of landfill leachate treatment,87.27 %～93.33 % and 42.68 %～61.04 % respectively in the deep treatment of MBR effluent. The effluent could be directly discharged into the municipal sewage treatment network.
In this experiment, bentonite modified by Dioctadecyl Dimethyl Ammonium Chloride(DODMAC) was used to adsorb landfill leachate at low cost under certain conditions. The results showed that the COD removal rate and NH_3-N removal rate were 69.16 %～70.77 % and 94.02 %～95.74 % respectively in the early and middle stages of landfill leachate treatment, 89.09 %～90.64 % and 97.47 %～97.89 % respectively in the middle and late stages of landfill leachate treatment,87.27 %～93.33 % and 42.68 %～61.04 % respectively in the deep treatment of MBR effluent. The effluent could be directly discharged into the municipal sewage treatment network.
引文
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[2]张宏忠,梁晓军,方少明,等.反渗透技术在垃圾渗滤液净化处理中的应用[J].郑州轻工业学院学报:自然科学版,2003,18(1):60-64.
[3]冯旭东,刘芳,郭明旻,等.垃圾渗滤液生物处理出水臭氧氧化的研究[J].环境污染与防治,2005,27(5):387-388.
[4]许晓东,李路通,王凯,等.反渗透膜的改性以及在水处理中应用进展[J].广东化工,2018,45(2):136-137.
[5]汪晓军,顾晓扬,简磊.垃圾渗滤液处理方法比较[C]//中国环境科学学会学术年会.2010.
[6]秦光武.垃圾渗滤液简介及处理技术[J].广东化工,2018,45(17):145.
[7]荣斯敏.去除垃圾渗滤液中氨氮的重要性及工艺分析[J].广东化工,2015,42(10):135-135.
[8]北京科技大学.一种矿物法深度处理垃圾渗滤液MBR出水的工艺方法[P].中国,201210103824.2,2012-08-01.
[9]邢奕,谯耕,张闻涛.改性膨润土处理垃圾渗滤液的研究[J].环境工程,2012,30(6):44-46.
[10]Fan P,Wang L,Xing Y.Study on combination processes of micro-electrolysis and fenton reagent for vitamin B12 wastewater pretreatment[C]//International Environmental Technology Conference.Beijing:2013.
[11]Pan L,Xing Y.A supposition of interlayer structure model of a dual-cationic organo-modified bentonite[C]//International Environmental Technology Conference.Beijing:2013.
[12]邢奕,刘敏,洪晨,等.石墨烯改性有机膨润土吸附性能及其动力学[J].北京科技大学学报,2016,38(3):438-445.
[13]岳波,张志彬,孙英杰,等.我国农村生活垃圾的产生特征研究[J].环境科学与技术,2014(6):129-134.