改性催化裂化废催化剂吸附水中氨氮的研究  

Study on Adsoption of Ammonia Nitrogen onto Activated FCC Waste Catalyst

作　　者：唐玉斌[1] 陈芳艳[1] 唐艳霞 

机构地区：[1]抚顺石油学院环境工程研究所,抚顺113001

出　　处：《辽宁城乡环境科技》1999年第1期22-26,共5页Liaoning Urban and Rural Environmental Science & Technology

摘　　要：考察了振荡时间、温度、pH值对吸附效果的影响．通过吸附热力学实验．探讨了吸附机理，结果表明．温度是影响吸附效果的主要因素；等温吸附规律可用Freundlich模式和Langmuir模式较好地描述；可能的吸附机理为：一是NH3分子通过偶极力和氢键力而吸附，二是NH4+通过离子交换而吸附。The effects of adsorption time,temperature and pH value of initial solution on the adsorption of ammonia nitrogenonto the activated FCCwaste catalyst were inspected.In addition,the mechanism for the adsorption was also studied in this paper.theresults showed that temperature is the main facter to affect the adsorption efficiency,The adsorption alw can be well described byFreundlich and Langmuir models .The possible adsorption mechanism is:NH3 is adsorbed by dipole force and hydrogen bond force,andnh4+ is adsorbed by ion exchage.

关 键 词：催化裂化 废催化剂 吸附 氨氮 水污染 

分 类 号：X520.5[环境科学与工程—环境工程]