水合氧化锆吸附剂除氟性能的试验研究  

Experimental study on fluoride removal performance of hydrous zirconium oxide absorbent

作　　者：李连香[1,2] 程先军[1,2] 李晓琴[1,2] 胡孟[1,2] 

机构地区：[1]中国水利水电科学研究院水利研究所,北京100048 [2]国家节水灌溉北京工程技术研究中心,北京100048

出　　处：《水利水电技术》2011年第1期21-23,36,共4页Water Resources and Hydropower Engineering

基　　金：国家十一五科技支撑项目(2006BAD01B02)

摘　　要：通过静态和动态试验研究了水合氧化锆吸附剂的适宜的pH值、剂量效应、动力学性能、重复利用性能。试验表明，该吸附剂在pH值为2．0～4．0范围内时吸附性能较佳；原水氟化物含量为3．72mg／L时，吸附剂添加量为0．5g/100mL即可将氟化物浓度降至1．0mg／L以下。试验中调节原水pH值至3．0，控制柱内停留时间为3min，连续进行了3个周期的吸附～脱附试验，证明水合氧化锆吸附剂具有良好的洗脱性能，可多次重复利用。The adaptable pH, effect of dose, dynamic performance and capacity of reuse of the hydrous zirconium oxide absorbent are studied through the relevant static and dynamic experiment. The experiment shows that the absorption performance of the ab- sorbent is better when pH is within a range of 2. 0 ~ 4. 0 ; for the raw water with the fluoride content of 3.72 mg/L, the fluoride concentration can be lowered below 1.0 mg/L, if the dosage of the adsorbent is 0. 5 g/100 mL. In the experiment, 3 cycles of column experiments of adsorption-desorption are made in series, for which the pH of the raw water is adjusted to 3.0 and the residence time in the column is controlled to 3 min. It is demonstrated that the hydrous zirconium oxide absorbent has a better desorption performance, and then can be reused as well.

关 键 词：水处理 除氟 水合氧化锆 吸附 PH值 脱附 

分 类 号：TU991.26[建筑科学—市政工程]