摘要
为解决精细化学产品带来的废水污染的问题,实验采用褐煤腐殖酸作为吸附剂,通过对其吸附动力学、等温线、pH值、褐煤投加量和离子强度的分析和测定研究了吸附剂对废水中活性翠兰KN-G的吸附影响.实验结果显示:褐煤浓度对吸附速率影响明显,其处理废水中活性翠兰的动力学符合二级速率方程(R2=0.993 6);吸附模式符合Freundlich方程(R2=0.999 7),先前吸附在褐煤上的活性翠兰对后续活性翠兰的吸附具有明显的抑制作用;在吸附实验中,pH值对吸附效果的影响明显,减小pH,导致废水中活性翠兰的去除率增加,实验结果表明当pH=1时,去除率最大;随着腐殖酸投加量的增加水溶液中活性翠兰去除率而提高;离子强度对吸附效果影响随着离子浓度的增加,去除率升高.
In order to solve the problem of wastewater pollution from fine chemical products,this paper concentrated studies of lignite isolated humus acid as adsorbent on absorption of reactive turquoise blue KN-G, by analyzing and testing adsorption kinetics, isothermal line, pH value, dosage of lignite and ion strength respectively.The results of study show that adsorption rate is strongly affected by concentration of lignite, its adsorption kinetic line conforms well to Secondary rate equation(R2=0.9936); its adsorption equation conforms well to Freundlich equation; Removal rate of reactive turquoise blue KN-G increases while pH of wastewater decreases and dosage of humus acid increases, and the rate researches its peak when pH comes to 1; The increase of ion strength will proportionately improve the removal rate of reactive turquoise blue KN-G in wastewater.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2013年第12期1609-1612,共4页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省大学生创新训练基金资助项目(20121047001)
关键词
褐煤
腐殖酸
活性翠兰KN-G
废水
动力学
等温线
吸附剂
lignite
humus acid
reactive turquoise blue KN-G
wastewater
adsorption kinetic line
isothermal line
adsorbent
