Ca~(2+)对磷酸铵镁沉淀法处理垃圾渗滤液效果的影响

详细信息    查看全文 | 推荐本文 |

英文篇名：Effect of Ca~(2+) on Landfill Leachate Treatment Efficiency by Ammonium Magnesium Phosphate Precipitation 作者：王雅楠 ; 杨军 英文作者：WANG Ya-nan;YANG Jun;School of Environmental and Municipal Engineering ,Lanzhou Jiaotong University; 关键词：Ca~(2+) ; 磷酸铵镁 ; 化学沉淀法 ; 垃圾渗滤液 ; 处理效果 英文关键词：Ca~(2+) ;;magnesium ammonium phosphate;;chemical precipitation;;landfill leachate;;treatment efficiency 中文刊名：ANHE 英文刊名：Modern Agricultural Science and Technology 机构：兰州交通大学环境与市政工程学院; 出版日期：2019-05-14 10:44 出版单位：现代农业科技 年：2019 期：No.743 基金：兰州市科技计划项目(2016-3-65) 语种：中文; 页：ANHE201909100 页数：3 CN：09 ISSN：34-1278/S 分类号：171-172+177

摘要

生活垃圾渗滤液中存在着大量Ca~(2+),会对磷酸铵镁沉淀法处理渗滤液产生一定影响。通过试验设置渗滤液中不同浓度Ca~(2+),探索其对磷酸铵镁沉淀法降低COD和氨氮效果的影响。结果表明,磷酸铵镁沉淀法对氨氮的去除率从65.12%下降至37.87%,对COD的去除率也从51.90%下降至42.52%。因此,垃圾渗滤液中Ca~(2+)的含量会影响Mg~(2+)与PO_4~(3-)、氨氮结合,降低氨氮和COD的去除率。
        There is a large amount of Ca~(2+) in leachate of household garbage,and they will have a certain impact on leachate treatment by ammonium magnesium phosphate precipitation.By setting different concentrations of Ca~(2+) in the leachate,a test was conducted to explore the effect of Ca~(2+) on the reduction efficiency of COD and ammonia nitrogen in the leachate by magnesium ammonium phosphate precipitation method.The results showed that the removal rate of ammonia nitrogen by ammonium magnesium phosphate precipitation method decreased from 65.12% to 37.87%,and the removal rate of COD also decreased from 51.90% to 42.52%.Therefore,the Ca~(2+) content in landfill leachate can affect the binding of Mg~(2+) with PO_4~(3-) and ammonia nitrogen,and reduce the removal rate of ammonia nitrogen and COD.

引文

[1]袁志宇.常温下生活垃圾渗滤液处理工艺研究[D].武汉:武汉理工大学,2010.
    [2]孟了,熊向陨,马箭.我国生活垃圾渗滤液处理现状及存在问题[J].给水排水,2003,29(10):26-29.
    [3]张春丽.兰州市城镇生活垃圾的处理现状及对策[J].科技创新导报,2008(13):102.
    [4] FOO K Y,HAMEED B H.A overview of landfill leachate treatment via activited carbon adsorption process[J].Journal of Hazardous Materials,2009,117:54-60.
    [5]宋燕杰,彭永臻,刘牡,等.生物综合工艺处理垃圾渗滤液的研究进展[J].水处理技术,2011,37(4):9-13.
    [6]聂发辉,李文婷,刘占孟,等.垃圾渗滤液处理技术的研究进展[J].华东交通大学学报,2013,30(2):21-27.
    [7]孙宏亮.电化学处理垃圾渗滤液的研究[D].西安:长安大学,2008.
    [8]张徵晟.高级氧化技术处理垃圾渗滤液的研究进展[J].四川环境,2005,24(5):72-78.
    [9]岳秀.垃圾渗滤液的预处理方法及其机理研究[D].长沙:湖南大学,2011.
    [10] OHLINGER K N,YOUNG T M,SCHROCDER E D.Predicting struvite formation indigestion[J].Wat Res,1998,32:3607-3614.