摘要
进行了凹凸棒土-稻壳活性炭滤料对水中腐殖酸的吸附性能研究,确定了吸附等温线、吸附动力学和吸附热力学等相关吸附模型参数。实验结果表明酸性条件有利于吸附,凹凸棒土-稻壳活性炭滤料对水中腐殖酸的吸附符合Freundlich吸附等温式和准二级动力学模型,吸附是一个自发的吸热过程,升温有利于提高滤料对腐殖酸的吸附能力。
The adsorption properties of the humic acid in the water were studied. The adsorption model parameters such as adsorption isotherm,adsorption kinetics and adsorption thermodynamics were determined. The results show that the acid condition is favorable for the adsorption,and the adsorption of humic acid on the water humus is consistent with Freundlich adsorption isotherm and quasi-second order kinetic model. Adsorption is a spontaneous endothermic process and improving of temperature is favorable for the adsorption capacity of humic acid on the filter media.
出处
《山东化工》
CAS
2017年第23期1-3,6,共4页
Shandong Chemical Industry
基金
江苏高校优势学科建设工程资助项目(PAPD)
南京林业大学大学生创新训练计划资助项目(2017NFUSPITP179)
关键词
凹凸棒土-稻壳活性炭滤料
腐殖酸
吸附等温式
动力学模型
热力学方程
attapulgite-rice husk actived carbon filter media
humic acid
adsorption isotherm
kinetic equation
thermodynamic equation
