聚硅酸铝铁的制备及其对含Ni^(2+)废水的吸附性能  

Preparation of Polysilicate Aluminum Ferrit and Its Adsorption Properties on Nickel-containing Wastewater

作　　者：曹书勤[1] 缑星[1] 赵艳格[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2012年第4期505-507,共3页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：河南省科技攻关项目(112102310579)

摘　　要：通过正交试验,确定聚硅酸铝铁的最佳制备条件为n(聚硅酸):n(Al3+)=2:1,n(聚硅酸):n(Fe3+)=2:1,浸出液pH为4.3,熟化温度为60℃.用分光光度法研究其对Ni2+的吸附性能,结果表明:当废水pH为8.0、絮凝剂用量为20 mL/L时,Ni2+去除率达92.7%,沉降时间为16 min.The optimum experimental conditions for preparation of polysilicate aluminum ferrit were obtained by orthogonal test. Nickel-containing wastewater was treated with polysilicate aluminum ferrit and the removal rate was determined by speetrophotometry. The results showed that the removal rate of Ni^2＋ could reach 92.7% when n（polysilicare） ： n（ Al^3＋ ） was 2： 1, n（ polysilicate）： n（ Fe^3＋ ） was 2： 1, temperature was 60 ℃ , wastewater pH was 8, and the usage of flocculant was 20 mL/L, and sedimentation time was 16 min, respectively.

关 键 词：分光光度法 粉煤灰 聚硅酸铝铁 絮凝剂 含镍废水 

分 类 号：X703.2[环境科学与工程—环境工程]