新生MnO_2对水中活性艳红K-2G的脱色作用研究  

Effect of Fresh MnO_2 on Decolorization of Reactive Brilliant Red K-2G

作　　者：马子川[1] 蒋兰宏[1] 张素坤[1] 霍庆 董丽丽[1] 

机构地区：[1]河北师范大学化学学院,河北石家庄050091

出　　处：《重庆环境科学》2002年第1期29-31,共3页Chongqing Environmental Science

基　　金：河北省科技攻关计划项目 (995470 1 2 D);河北省教育厅科研基金 (990 2 38)资助

摘　　要：以化学法合成的新生 Mn O2 作吸附剂 ,对水中活性艳红 K- 2 G进行吸附脱色研究 ,探讨了影响吸附的因素和吸附机理。结果表明 :新生 Mn O2 对活性艳红 K- 2 G的吸附符合 L angmuir吸附等温式 ,吸附前溶液 p H值是影响染料脱色效果的最主要因素 ,染料浓度、Mn O2 投加量和温度影响程度较小。在实验条件下可使活性艳红 K- 2 G的脱色率高达 96 %Effect of fresh MnO 2 on decolorization of reactive brilliant red K 2G was studied.The fresh MnO 2 was synthesized by a chemical process and used as an adsorbent.Influencing factors and the mechanism of adsorption were investigated in detail.The experimental results showed that the adsorption of the dye on the fresh MnO 2 was conformed to the Langmuir isotherm equation.pH value of solution before adsorption was the key factor of decolorization,whereas the dye concentration,the amount of fresh MnO 2 as well as temperature has little effect on decolorization.It was discovered that the efficiency of decolorization was up to 96% under experiment conditions.

关 键 词：新生MNO2 活性艳红K-2G 吸附作用 脱色 二氧化锰 废水处理 染料 吸附剂 

分 类 号：X788[环境科学与工程—环境工程] X703.5