活性炭和沸石组合吸附渗滤液中COD_(cr)和氨氮的试验研究  

Experimental Research on COD_(cr) and Ammonia Nitrogen Adsorption by Activated Carbon and Zeolite from Landfill Leachate

作　　者：彭雪妍[1] 肖瑜[1,2] 李中秋[1] 

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541004 [2]广西环境工程与保护评价重点实验室,广西桂林541004

出　　处：《环境科学与管理》2012年第8期86-89,共4页Environmental Science and Management

基　　金：广西自然科学基金项目(编号:2010GXNSFA013014)

摘　　要：经过Fenton试剂氧化处理后的垃圾渗滤液用于吸附处理试验,试验分别得到活性炭和沸石的最佳反应pH值和反应时间后,将活性炭和沸石组合吸附渗滤液,4种吸附处理方式去除垃圾渗滤液中CODcr的能力为:活性炭-沸石>沸石-活性炭>活性炭>活性炭/沸石;去除垃圾渗滤液中NH3-N的能力为:活性炭/沸石>活性炭-沸石>沸石>沸石-活性炭。根据对比分析,确定了最佳吸附工艺应为活性炭-沸石组合工艺,该工艺对CODcr和NH3-N的去除率分别达到74.11%和80.86%。Landfill leachate was treated by adsorbent after Fenton oxidation process. The best pH value and reaction time of activated carbon and zeolite were obtained. Then activated carbon and zeolite were used as adsorbent. According to the comparison of four kinds of adsorption manners,the order of adsorption ability for CODr was as follows：activated carbon - zeolite 〉 zeolite - activated carbon 〉 activated carbon 〉 activated - carbon/zeolite. The order of adsorption ability for NH3 - N was as follows ： ac- tivated carbon/zeolite 〉 activated carbon - zeolite 〉 zeolite 〉 zeolite - activated carbon. According to the contrast analysis, the op- timum process was activated carbon - zeolite integrated process. The removal rate of COD, and NH3 - N respectively were 74. 11% and 80. 86%.

关 键 词：垃圾渗滤液 活性炭 沸石 

分 类 号：X703.1[环境科学与工程—环境工程]