凹凸棒土对Cd(Ⅱ)的吸附性能研究OA
Study on the Absorption of the Attapulgite for Cd(Ⅱ)
采用凹凸棒土对废水中的Cd(Ⅱ)进行吸附试验,探讨了吸附时间、凹凸棒土投加量、废水中Cd(Ⅱ)的初始浓度对吸附率的影响,探索最佳工艺务件；同时考察了酸化改性后凹凸棒土对Cd(Ⅱ)的吸附性能,并分析了凹凸棒土对Cd(Ⅱ)的吸附等温线.结果表明Cd(Ⅱ)的初始浓度越高,吸附率越低；Cd(Ⅱ)在浓度为20 mg/L、吸附时间60 min、凹凸棒土投加量60 g/L时,去除率达到94.6％；盐酸改性后,Cd(Ⅱ)在浓度为20 mg/L、吸附时间60 mi…查看全部>>
By dint of attapulgite, the absorption of Cd(Ⅱ) in wastewater was studied. The effects of the adsorption time, attapulgite input and initial concentration of Cd(Ⅱ) on adsorption rate were discussed, and the optimum conditions were obtained. Adsorption performance of the a-cidification modified attapulgite was inspected. Finally the adsorption isotherm of attapulgite on Cd(Ⅱ) was inspected. The results showed that; the higher the initial concentration of Cd(Ⅱ…查看全部>>
杨瑞洪
扬州工业职业技术学院化学工程系,江苏扬州225127
资源环境
凹凸棒土Cd(Ⅱ)吸附Langmuir等温线
Attapulgite Cd(Ⅱ) Absorption Langmuir adsorption isotherm
《安徽农业科学》 2011 (23)
14221-14223,3
中石化科技开发项目(G1715-2010-ZS0002)江苏省大学生实践创新项目.
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