摘要
采用强酸性阳离子交换树脂001×7苯乙烯系磺酸钠型树脂为载体,负载H+,Al3+和La3+制成3种球状吸附剂.研究结果表明:改性树脂较未改性树脂可显著提高对水中氟离子的去除效率;吸附时间,外界氟离子浓度,树脂量,pH值对于3种改性树脂的除氟效率都有影响,其中Al改性树脂除氟效果最好,其最佳除氟条件是:吸附时间为16 h,吸附浓度为12 mg/L,4 mg树脂量,酸性条件.
The cation-exchange resin（001 ×7） is chosen as adsorption, which is transformed by different solutions （H^＋, Al^3＋ and La^3＋）. Results show, comparing with non-modified resin, modified resin can improve defluridation efficiency from water; removing rate of fluoride of these three kinds of resin can be influenced by time, concentration of fluoride in water, weigh of resin and pH; model-Al resin has the highest defluoridation rate, and the best conditions are： adsorption time is 16h, concentration of fluoride in water is 12 mg/L, weigh of resin is 4 mg, acid condition.
出处
《中北大学学报（自然科学版）》
EI
CAS
2008年第4期352-355,共4页
Journal of North University of China(Natural Science Edition)
基金
山西省自然科学基金资助项目(20051034)
关键词
氟
阳离子交换树脂
除氟
fluoride
cation exchange resin
defluoridation
