%0 Journal Article
%T Preparation of powder activated carbon by rice husks and its adsorption capacity to phosphorus<br>稻壳活性炭制备及其对磷的吸附
%A Li Nan
%A Shan Baoqing
%A Tang Wenzhong
%A Wang Yujun
%A <br>李楠
%A 单保庆
%A 唐文忠
%A 王玉军
%J 环境工程学报
%D 2013
%I 
%X 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.
%K rice husks
%K powder activated carbon
%K phosphorus
%K adsorption isotherm
%K adsorption kinetics<br>稻壳
%K 活性炭
%K 磷
%K 吸附等温线
%K 吸附动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=96293AEB9294B34D2A1FA6986FFA765F&yid=FF7AA908D58E97FA&vid=DF92D298D3FF1E6E&iid=38B194292C032A66&sid=6A2E9D0F5619615A&eid=5CC11A326E54A79A&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=20