天祝褐煤腐殖酸对Cr(Ⅵ)的吸附性能研究  

Adsorption performance test of lignite humid acid in Tianzhu to Cr(Ⅵ)

作　　者：陈峰[1] 李静萍[1] 王晓强[1] 成文龙[1] 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070

出　　处：《应用化工》2007年第7期670-672,共3页Applied Chemical Industry

基　　金：兰州交通大学大学生科技创新基金项目(DXS-2006-84)

摘　　要：采用天祝褐煤中提取的腐殖酸对Cr(Ⅵ)进行了吸附性能的研究,确定了Cr(Ⅵ)的吸附平衡时间、pH值大小及吸附速率方程,讨论了腐殖酸用量和Cr(Ⅵ)初始浓度与吸附率、吸附量的关系。实验结果显示,吸附速率方程为V=0.046 69C,且当吸附时间为12 h,pH=5,腐殖酸用量为0.8 g,Cr(Ⅵ)初始浓度为350 mg/L左右时,腐殖酸对Cr(Ⅵ)吸附量达34.28 mg/g。The adsorption performance of humid acid from lignite in Tianzhu to Cr（ Ⅵ ） was studied. The adsorption time ,pH value and velocity equation were determined. The dosage of humid acid and the initial concentration of Cr（ Ⅵ ） to adsorption quantity was discussed. The results showed that the velocity equation was V =0. 046 69C, and when adsorption time was 12 h, HA dosage was 0.8 g, pH = 5, and initial concentration of Cr（Ⅵ） was about 350 mg/L, the adsorption capacity was up to 34.28 mg/g.

关 键 词：腐殖酸 Cr(Ⅵ) 吸附 

分 类 号：TQ424[化学工程]