%0 Journal Article
%T Study on activated carbon made from sewage sludge by microwave<br>微波法制备污泥活性炭研究
%A Lin Lili
%A Jiang Wenju
%A Jin Yan
%A Yang Lijun
%A <br>蔺丽丽
%A 蒋文举
%A 金燕
%A 杨丽君
%J 环境工程学报
%D 2007
%I 
%X Sludge-based activated carbon was made from surplus sewage sludge in an urban wastewater treatment plant by microwave heating. Phosphoric acid (H3PO4) was used as a sludge activating agent during the pyrolytic process. Microwave power, irradiation time and the concentration of H3PO4 had remarkable influences on the adsorption performance of the sludge-based activated carbon. The activated carbon prepared under the optimal conditions of microwave power 480W, irradiation time 315s and 40% concentration of H3PO4 had a surface area of 168m2/g and an iodine adsorption value of 301mg/g. In addition, the heave metals in the source sludge had been solidified in the course of microwave heating.Compared with the traditional commercial carbon, the sludge-based activated carbon was mainly mesoporous in nature. Finally, the sludge-based activated carbon as an adsorbent was employed for disposing COD in effluent of the urban sewage treatment plant. The aqueous adsorption test indicated that the sludge-based activated carbon had a notable adsorption capacity for COD and the removal efficiency of COD was more than 87%. The equilibrium data fitted well in the Languir model of adsorption.
%K sludge
%K microwave
%K activated carbon
%K adsorption<br>污泥
%K 微波
%K 活性炭
%K 吸附
%K 微波
%K 法制
%K 污泥活性炭
%K 研究
%K microwave
%K sewage
%K sludge
%K activated
%K carbon
%K 描述
%K 吸附模型
%K Langmuir
%K 吸附等温线
%K 去除率
%K 污水处理厂
%K 城市
%K 炭处理
%K 利用
%K 孔隙结构
%K 泥炭
%K 重金属
%K 比表面积
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=E1DE5610D3B9733E3BD4A67E0FF9AC75&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=E158A972A605785F&sid=EFD65B51496FB200&eid=B62E0EEFE746E568&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=11