%0 Journal Article
%T Study on adsorption characteristics of activated carbon to leaded wastewater<br>活性炭对含铅废水吸附特性研究
%A Luo Hemin
%A Cao Guopu
%A <br>雒和敏
%A 曹国璞
%J 环境工程学报
%D 2010
%I 
%X Activated carbons were used to adsorb the divalent lead ions in wastewater by a static method in order to study the absorption characteristics. The results showed that the absorption equilibrium time was 100 min. The adsorption isotherm equation was C_e/q_e = 0. 4298 +0. 0594C_e ( 25 ℃) , and the equation was consistent with the Langmuir absorption model. The adsorption equation parameters ( R_L) , which were between 0 and 1 at different temperatures, proved that adsorption was beneficial to process. The experiment was well fitted by math-ematical model with the secondary correlation coefficient ( R~2 ) being 0. 9998. Meanwhile the adsorption was con-firmed as a spontaneous endothermic process by the results of △H~θ＞0 and △G~θ ＜0 at different temperatures; and the order reduced and the chaos increased of the divalent lead ions in the solid - liquid interface with △S~θ ＞ 0. In addition, small value of △H~θ showed that the absorption was a physical process.
%K activated carbon
%K leaded wastewater
%K adsorption isotherm
%K adsorption dynamics
%K adsorption thermodynamic<br>活性炭
%K 含铅废水
%K 吸附等温线
%K 吸附动力学
%K 吸附热力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=46C895F2C167260B9748AC9D2F8DFB84&yid=140ECF96957D60B2&vid=E158A972A605785F&iid=0B39A22176CE99FB&sid=F4BDB5452F9F5642&eid=09D368C679EC819B&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=11