摘要
本文介绍了Ｆｅ（ＯＨ）３和Ａｌ（ＯＨ）３混凝吸附法去除水中Ａｓ（Ｖ）的研究。试验考察了ｐＨ、Ａｓ（Ｖ）的浓度对吸附量（Γ）的影响以及它们吸附Ａｓ（Ｖ）前后表面ζ－电位的变化。结果表明：两者吸附皆符合Ｌａｎｇｍｕｉｒ吸附式，Ｆｅ（ＯＨ）３的ｍａｘ随ｐＨ升高而减少，Ａｌ（ＯＨ）３的Γｍａｘ出现在ｐＨ６．０左右。并对吸附机理作了初步探讨。
This article introduces a study of by means of Fe(OH)3 and Al(OH)3coagulation adsorption. In the experimental research we examined the influence of the pH and concentration of Arsenic on the adsorption quantity and the change of Zeta potential of hydrous iron and aluminum before and after the arsenate adsorption. The results of the experiments Show: their adsorptson accords with Langmuir isothemal adsor ption equation, and the maximum adsorption on Fe(OH)3 reduced when pH was up. The adsorption maximum on Al(OH)3 was achieved at the point of some pH 6. 0. The mechanism of adsorption is studied tentatively.
出处
《苏州城建环保学院学报》
1995年第1期70-77,共8页
Journal of Suzhou Institute of Urban Construction and Environmental Protection
