铝酸钙渣处理含氟废水研究

Removal of Fluorine Ions from Wastewater Using Calcium Aluminate Slag

用铝酸钙渣吸附去除废水中的氟离子,试验了焙烧温度、初始氟离子浓度和接触时间对氟离子去除的影响,并作了吸附等温线。结果表明,最佳焙烧温度为800℃,吸附平衡时间为40min,最大吸附容量为12.0mg/g,吸附等温线符合B.E.T模型。因此,用铝酸钙渣处理含氟废水经济可行。

This bench experimental study is designed to utilize slag of calcium aluminate for treating fluorine-containing water, focusing on the optimum condition in terms of the slag roasting temperature, initial concentration of fluorine ion and adsorption time. The experiment indicated that adsorption equilibrium time was 40min, and the max. adsorption capacity was 12.0mg/g.