电气石对含Cu^(2+)废水的净化原理探讨  

The mechanism of applying tourmaline to purifying Cu^(2+)-doped waste water

作　　者：汤云晖[1] 吴瑞华[1] 章西焕[1] 

机构地区：[1]中国地质大学,北京100083

出　　处：《岩石矿物学杂志》2002年第2期192-196,共5页Acta Petrologica et Mineralogica

基　　金：国家自然科学基金资助项目 (4 0 172 10 4)

摘　　要：研究了电气石的粒度、用量及环境条件 (pH值、温度、搅动情况 )对水中Cu2 +吸附的影响 ,分析了电气石对含Cu2 +废水的净化原理。电气石本身的静电场对Cu2 +的吸附作用使Cu2 +与表面羟基的离解产物OH- 在电气石表面上发生反应 ,形成沉淀 。This paper deals with the mechanism of applying tourmaline to purifying Cu 2+_doped waste water based on the study of absorbing Cu 2+ ion by tourmaline in water. Factors affecting the absorption of Cu 2+ ion in solution, such as diameters, quantity of tourmaline particles, and experimental conditions (pH value, temperature, stirring situation) are studied. The purifying mechanism of tourmaline lies in the existence of electrostatic field around tourmaline particles, which attracts Cu 2+ ion and causes Cu 2+ to combine with OH -, the dissociation product of hydroxyl at the surface of tourmaline, thus forming precipitation on tourmaline and attaining the aim of purification.

关 键 词：电气石 CU^2+ 净化原理 

分 类 号：P578.953[天文地球—矿物学] O647.32[天文地球—地质学]