郑州轻工业学院学报（自然科学版）2011，Vol.26Issue(5)：65-69,5.
芹菜渣对Cu2+的吸附特性和吸附机理研究
Study on adsorption character and mechanism of Cu2+ by celery residue
摘要
Abstract
By adsorption method, adsorption character and mechanism of Cu2 + by celery residue were studied. The results showed that with the smaller size of celery residue, Cu2 + adsorption rate increases. Under the same Cu2 * initial concentration, with the addition of more celery residue, Cu2 + adsorption rate increases. Under the same addition amount of celery residue, Cu2+ adsorption rate all has once maximum value, as initial concentration is 15 mg/L. Orthogonal tests showed that the optimum adsorption conditions are the wastewater Ph = 6, temperature 30 t and soaking time 3 h, and influence degree for 3 factors from big to small is Ph,temperature and soaking time. Single molecule layer absorption dominant is Cu + adsorption, and adsorption isotherm is fit to Freundlich adsorption isotherm. Under standard condition, the adsorption heat for celery residue on Cu + is 10. 49 kj/mol. The adsorption rate for celery residue to Cu + is quick first, and then become slow after more than 60 min. First kinetic model can describe the adsorption kinetics of celery residue more better.关键词
芹菜渣/Cu2+/吸附试验/吸附等温线/吸附动力曲线Key words
celery residue /Cu2+ / adsorption test/ adsorption isotherm/ dynamic adsorption curve分类
轻工纺织引用本文复制引用
杜磊..芹菜渣对Cu2+的吸附特性和吸附机理研究[J].郑州轻工业学院学报（自然科学版）,2011,26(5):65-69,5.基金项目
山西省高校科技开发项目(20110021) （20110021）
