环境工程学报2013，Vol.7Issue(3)：1024-1028,5.
稻壳活性炭制备及其对磷的吸附
Preparation of powder activated carbon by rice husks and its adsorption capacity to phosphorus
摘要
Abstract
Powder activated carbon ( PAC ) with rich microporous structure was prepared from rice husks by carbonizing, activating, pickling, washing and drying, and its specific surface area (BET) was 886.3 m2 /g. The adsorption process of PAC to phosphorus (P) was studied. The results showed that the adsorption isotherm could be described by both Langmuir model (R2 = 0. 9284) and Freundlich model ( R2 = 0. 9208) , and the saturated adsorption capacity reached 6. 93 mg/g. The adsorption process of PAC to P could be described by pseudo second-order kinetic equation ( R2 = 0. 9968 ) , and the rate of adsorption was under the control of intra-particle diffusion. PAC, as available, cheap and efficient matrix filler, has bright prospects in ecological treatment technologies of rural sewage.关键词
稻壳/活性炭/磷/吸附等温线/吸附动力学Key words
rice husks/ powder activated carbon/ phosphorus/ adsorption isotherm/ adsorption kinetics分类
资源环境引用本文复制引用
李楠,单保庆,唐文忠,王玉军..稻壳活性炭制备及其对磷的吸附[J].环境工程学报,2013,7(3):1024-1028,5.基金项目
村镇环境监测适宜关键技术研究(2012BAJ24B01) （2012BAJ24B01）
