一种固体废弃物的回收及其对镉离子的吸附  

Reclamation of A Solid Waste And Its Adsorption toward Cadmium Ions

作　　者：沈敬一[1] 何其庄[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《环境科学与技术》2009年第B06期329-332,共4页Environmental Science & Technology

基　　金：上海市教育委员会科研项目（05DZ19）

摘　　要：研究了钢渣粒度、投入量、吸附时间、搅拌速度、溶液初始Cd^2＋含量、二次处理等条件对钢渣去除Cd^2＋离子效果的影响。实验结果表明，经球磨改性后的钢渣对Cd^2＋的吸附能力很强，如能合理控制各种工艺条件，就可有效降低溶液中的Cd^2＋含量，使之达到国家规定的污水综合排放标准，去除率在99.3％以上。Several conditions such as granularity of steel slags, dosage of steel slags, reaction time, rotate speed, initial value of Cd^2＋ in solutions and secondary treatment were researched in order to learn their effect on the removal of Cd^2＋ using the steel slags. The results showed that steel slags rebuilt have good adsorption on Cd^2＋. If the conditions could be controlled reasonably, the content of Cd^2＋ in solutions could be lowered efficiently,and it can achieve the industry standard our country have prescribed. The removal percentage is higher than 99.3 %.

关 键 词：钢渣 镉离子 球磨法 吸附 废水处理 

分 类 号：X131.2[环境科学与工程—环境科学] X705