微波辐射制备复合吸附剂对磷酸根的吸附性  

Preparation of the compound adsorbent by microwave-radiation and its adsorption behavior of phosphate radical

作　　者：董庆洁[1] 高素华[1] 邵仕香[1] 孟欣[1] 王翔[1] 

机构地区：[1]天津理工大学生物与化学工程学院,天津300191

出　　处：《无机盐工业》2006年第8期23-25,37,共4页Inorganic Chemicals Industry

基　　金：天津市自然科学基金项目(项目编号:023608111)

摘　　要：用微波辐射制备无机复合吸附剂。将该吸附剂进行含磷废水的吸附试验,研究了静态吸附的动力学、热力学和再生条件。结果表明:该吸附剂对磷酸根的吸附符合一级反应动力学;平衡浓度与吸附容量符合Freund l-ich吸附等温线。失活的吸附剂在低的碱性溶液中很容易再生,解吸率可达98%,活化率为99%。The inorganic compound adsorbent was prepared by microwave -radiation. It was used to remove phosphate form P - containing wastewater. The characteristics of kinetics and thermodynamics and regeneration conditions of the adsor bent were studied. Experimental results show that the kinetics of the reaction is the first - order and that adsorptive capacity and equilibrium concentration follows Freundlich isotherm in the tested range of phosphate concentrations. The adsorbent can be regenerated with lower concentration NaOH solution after phosphate removal. The desorption rate can be 98% and the activity of desorbed adsorbent is 99%.

关 键 词：微波辐射 离子交换 动力学 热力学 吸附剂 磷酸根 

分 类 号：TQ126.3[化学工程—无机化工]