初始浓度对粉煤灰合成沸石吸附Cr^(3+)的影响  

Effect of Initial Concentration on the Adsorption of Cr^(3+) by Synthesis of Zeolite from Coal Fly Ash

作　　者：史春平 陈晨[2] 程婷[3] 

机构地区：[1]江苏省优联检测技术服务有限公司,江苏苏州215168 [2]江苏科技大学生物与化学工程学院,江苏镇江212018 [3]江苏城市职业学院城市科学系,江苏南京210017

出　　处：《广州化工》2013年第18期60-61,66,共3页GuangZhou Chemical Industry

基　　金：江苏省高校自然科学研究资助项目(13KJB610005)

摘　　要：利用粉煤灰合成的沸石吸附重金属Cr^(3+),考察吸附剂量与初始浓度对Cr^(3+)吸附效果的影响。结果表明:初始浓度与吸附剂量对粉煤灰合成沸石吸附Cr^(3+)的去除率与饱和吸附量影响显著。合成沸石对Cr^(3+)的吸附去除率随着初始浓度的降低而提高,随着吸附剂投加量的增加而增加。随着粉煤灰合成沸石投加量的不断增加,单位质量的沸石吸附剂对Cr^(3+)的吸附容量不断下降。The experiment was conducted to examine the adsorption of heavy metal ion Cr3＋ through synthesizing zeolite from coal fly ash. The initial concentration and adsorbent dosage was investigated in the tests. The results showed that the initial concentration and adsorbent dosage had significant effect on the removal rate of Cr3＋ and the saturated adsorption capacity. With the decreasing of the initial concentration of heavy metal ion Cr3 ＋ , the removal rate of Cr3＋ by synthesis of zeolite from coal fly ash was improved. The removal rate of Cr3＋ was also enhanced with the increasing of adsorbent dosage. In addition, with the increasing of the adsorbent dosage, the saturated adsorption capacity was decreased gradually.

关 键 词：三价铬离子 粉煤灰 吸附 沸石 

分 类 号：X52[环境科学与工程—环境工程]