凹凸棒活性炭复合滤料对水中COD_(Mn)的吸附研究  

Study on Adsorption of COD_(Mn) on Attapulgite Activated Carbon Composite Material from Aqueous Solution

作　　者：梁利娜[1] 王郑[1] 杨铠诚[1] 刘璐[1] 申明杨[1] 芦霞[1] 孙海[1] 

机构地区：[1]南京林业大学土木工程学院,江苏南京210037

出　　处：《河北化工》2010年第1期2-4,共3页Hebei Chemical Industry

基　　金：南京林业大学2009年大学生科技创新项目(200973)

摘　　要：以凹凸棒活性炭复合滤料处理原水中的CODMn,探讨了滤料投加量、吸附时间、温度、pH值及原水初始浓度等因素对CODMn去除处理效果的影响。结果表明,滤料的最佳投加量及吸附时间分别为40g/L和80min,吸附反应是放热反应,在pH约为8时CODMn的去除率可达到54.27%,滤料对CODMn的吸附符合Langmuir吸附模型,凹凸棒活性炭复合滤料在微污染饮用水处理领域有一定的实际应用价值。Batch experiments were carried on adsorption of CODMn with the attapulgite activated carbon composite material. The influence of adsorbent dosage, adsorption time, temperature, pH and initial concentration were studied. The results showed that the adsorption of CODMn on composite material achieved equilibrium through 80 min and the best dosage was 40 g/L. Adsorption reaction was exothermic. The adsorption rate can reach 54.27% at pH 8. The adsorption isotherms could be modeled by Langmuir equation. The attapulgite activated carbon composite material has some practical applications in the field of micro-polluted drinking water treatment.

关 键 词：凹凸棒活性炭复合滤料 CODMN 吸附 研究 

分 类 号：TQ424.1[化学工程]