摘要
利用泥炭为原料制备腐植酸树脂。在动态条件下,研究了腐植酸树脂对重金属离子Zn2+、Ni2+的吸附效果及吸附条件并探讨了吸附与解吸再生机理:主要吸附形式为离子交换吸附和络合吸附。实验结果表明,在20℃,流速为4mL/min,pH值为5.0～7.0条件下,含Zn2+、Ni2+质量浓度均为70mg/L的废水,经腐植酸树脂处理后,Zn2+、Ni2+去除率可达98%以上,且处理后废水近中性。含Zn2+、Ni2+质量浓度分别为32.5mg/L和29.4mg/L,pH值为5.9的电镀废水,经腐植酸树脂处理后,废水中Zn2+、Ni2+含量显著低于国家排放标准允许值。
The humic acid resin was prepared using peat as material.Under the condition of dynamic state,the adsorption effect and conditions of humic acid resin against heavy metal ions such as Zn2+ and Ni2+ were studied.The mechanisms of adsorption,desorption and regeneration of humic acid resin against Zn2+ and Ni2+ were discussed at the same time.The research on the mechanism shows that the main adsorption is ion exchange and complex adsorption between resin and Zn2+ and Ni2+.The results show that the removing eff...
出处
《煤化工》
CAS
2008年第3期63-66,共4页
Coal Chemical Industry
基金
湖南省自然科学基金资助项目(06JJ4005)
关键词
腐植酸树脂
吸附
电镀废水
重金属离子
humic acid resin
adsorption
electroplating wastewater
heavy metal ions
