镧钛改性膨润土吸附剂的制备与除磷性能的研究

Research on preparation of bentonite absorbent modified by La or La-Ti and its phosphor removal efficiency

通过浸渍法制备镧和镧钛改性膨润土吸附剂,探讨了处理含磷废水的最佳条件。结果表明,当磷的平衡浓度为0.5 mg/L时,镧改性膨润土平衡吸附量为37.74 mg/g,镧钛改性膨润土的平衡吸附量为42.77 mg/g,是其他的除磷吸附量的好几倍甚至几百倍。为含磷废水的处理提供了一条高效、经济的新途径。

Bentonite absorbent modified by La and La-Ti was prepared with maceration method. The optimal condition for treatment of wastewater contain phosphor was discussed. The results indicated that when balance concentration of phosphor is 0.5 mg/L, balance adsorption quantity of bentonite modified by La is 37.74 mg/L and that of bentonite modified by La-Ti is 42.77 mg/g, the balance adsorption quantity is many times than that of absorbent in phosphor removal. This method has provided a new economical way for the treatment of phosphor from wastewater.