改性活性氧化铝除氟性能研究  

Effect of fluoride removal of modified activated alumina

作　　者：王风贺[1] 瞿俊[1] 姜炜[2] 王力友[1] 张勇[1] 

机构地区：[1]南京师范大学动力工程学院水处理研究所,江苏南京210042 [2]南京理工大学国家特种超细粉体工程技术研究中心,江苏南京210094

出　　处：《化工矿物与加工》2008年第2期23-25,共3页Industrial Minerals & Processing

摘　　要：通过静态实验,研究了改性活性氧化铝(MAA)对F-的吸附性能,考察了吸附时间、改性活性氧化铝的用量对除氟性能的影响,并与新型除氟树脂的除氟性能进行了比较。研究结果表明:活性氧化铝的用量为4 g时,除氟效率最高,为94.57%;活性氧化铝与含氟水的最佳接触时间为3 h;MAA在较低用量(<4 g)时,除氟效率不如除氟树脂高,但是在较高用量(≥4 g)下,MAA则高于树脂的除氟效率。The adsorption properties of modified activated alumina to F^- ion were researched by captive test. The effects of adsorption time and weight of modified activated alumina on the adsorption properties were studied, and the properties of fluoride removal were compared with resin READ - F. The results showed that the efficiency of fluoride removal was 94.57% at the optimal dosage of 4 g, and the optimal adsorption time was 3 h. The efficiency of fluoride removal was less than that of resin READ- F at low dosage （〈 4 g）, but the efficiency of fluoride removal was bigger than that of resin READ- F at high dosage（≥4 g）.

关 键 词：活性氧化铝 吸附 除氟 

分 类 号：X703[环境科学与工程—环境工程]