颗粒活性炭对4-氯酚模拟废水吸附研究  

Study on Adsorption of the Granular Activated Carbon on Simulated Wastewater with 4-chlorophenol

作　　者：吴志斌[1] 李媚[1,2] 廖安平[2] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西民族大学化学与生态工程学院,化学与生物转化过程新技术广西高校重点实验室,广西南宁530006

出　　处：《安徽农业科学》2010年第24期13343-13344,13354,共3页Journal of Anhui Agricultural Sciences

基　　金：广西科学基金项目(桂科自0728055);广西科学研究与技术开发计划项目(桂科能0992928-13);广西教育厅项目(2004[20])

摘　　要：[目的]将颗粒活性炭应用于吸附处理含4-氯酚废水。[方法]研究颗粒活性炭对模拟废水中4-氯酚的吸附过程。[结果]在30℃,摇床转速为150r/min时,颗粒活性炭对4-氯酚静态吸附6h可达吸附平衡;采用Langemuir和Freundlich吸附等温式对试验数据进行线性拟合,4-氯酚在颗粒活性炭上的吸附行为符合Freundlich等温式。测定了30℃时4-氯酚通过颗粒活性炭固定床的穿透曲线,穿透时颗粒活性炭的吸附容量为37.8mg/g,为同条件下静态吸附容量的0.5018。[结论]颗粒活性炭对模拟废水中的4-氯酚具有良好的吸附作用。[ Objective ] The aim of the study was to use GAC （ Granular activated carbon） for adsorption treatment of wastewate containing 4- chlorophenol. [ Method ] The adsorption process of 4-chlorophenol in simulated wastewater by GAC was studied. [ Result ] Under 30℃ and the 150r/min of shaker speed, the time of the granular activated carbon on 4-chlorophenol adsorption equilibrium was 6 hours. The experimental data was regressed by langemuir and freundlich isotherm models . The adsorption behavior of granular activated carbon on 4-chlorophenol conformed to freundlich isotherm equation. The breakthrough curve of 4-chlorophenol through granular activated carbon fixed bed was measured at 30 ℃. The results showed that the granular activated carbon adsorption capacity at the penetration point was 37.8 mg/g carbon, only 0. 501 8 of the static adsorption capacity at the same conditions. [ Conclusion ] The GAC had very good performance in absorption of simulated wastewater with 4-chlorophenol.

关 键 词：颗粒活性炭 4-氯酚 等温吸附 穿透曲线 

分 类 号：X72[环境科学与工程—环境工程]