FCC废催化剂对水中铜(Ⅱ)的吸附  

Adsorption of Cu2+ onto waste FCC catalyst

作　　者：陈芳艳[1] 张洪林[1] 唐玉斌[1] 蒋林时[1] 赵庆祥[2] 

机构地区：[1]抚顺石油学院环境工程研究所,辽宁抚顺113001 [2]华东理工大学资源与环境工程学院,上海200237

出　　处：《中国环境科学》1999年第2期153-156,共4页China Environmental Science

基　　金：中国石油化工总公司资助项目!196135

摘　　要：利用ＦＣＣ废催化剂吸附去除废水中的Ｃｕ＾２＋，考察了振荡时间，温度和ｐＨ值对Ｃｕ６３＋在ＦＣＣ废催化上吸收的影响，探讨了吸附机理，并对吸附及吸附剂可再生性作了考察。结果表明，振荡时间，温度及ｐＨ值对Ｃｕ＾２＋的吸附效果影响较大。Ｃｕ＾２＋在ＦＣＣ废催化上的吸附符合Ｆｒｅｕｎｄｌｉｃｈ和Ｌａｎｇｍｕｉｒ模式，吸附呈单分子层形式且易进行，吸附机理是靠静电引力发生交换吸附及化学键力形成羟基络合物而吸附。The adsorption of waste FCC(Fluidized Catalytic Cracking) catalyst was used to remove Cu2+ in the wastewater.The effect of shaking time,temperature and PH value on the adsorption of Cu2+ onto waste FCC catalyst was in.spected. The mechanism for the adsorption was studied. The column test and the regeneration of the adsorbent were in-spected the. The results indicate that shaking time, temperature and PH value are the main factors to affect adsorption ofCu2+. The adsorption of Cu2+ onto waste FCC catalyst is classified to mono-molecular type, which can be well describedby Freundlich and Langmuir models.Cu2+ is easy to be adsorbed by the adsorbent. The mechanism for the adsorption is:Cu2+ is adsorbed by cation exchange or the formation of hydroxo complex. The successive operation for adsorption ofCu2+ is feasible. The adsorbent is easy to be regenerated.

关 键 词：FCC废催化剂 铜离子 吸附 机理 废水处理 

分 类 号：X703[环境科学与工程—环境工程]