摘要
利用三氯化铁改型的沸石在水中的除氟性能,对其使用条件及除氟机理进行了研究。并对洗脱、再生后的吸附剂进行了再吸附柱试验。研究表明,该吸附剂的静态饱和吸附容量可达26.57 m g/g,动态吸附容量可达16.81 m g/g,吸附平衡时间为2~3 h,含氟水中共存阴离子对吸附几乎不产生影响,可用稀碱液进行洗脱,多次洗脱再生后的吸附剂可重复使用,吸附剂性能稳定,机械强度高。
Defluoridation from water by the version zeolite with Fe^3＋ ion was discussed and the mechanism and the condition of use were studied. Then column experiment were carried out with the saturated absorbent stripped and regenerated with FeCl3 and buffer solution. The study results showed that the static saturation absorbing capacity of the defluoridation material was 26.57 mg/g. and its dynamic absorbing capacity was 16.81 mg/g,absorption equilibrium time 2-3 h. The two kinds of new defluoridation materials had high choice for fluorine,and their defluoridation effects were good by more eluting and regenerating.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2005年第9期91-94,共4页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家科委山川秀美科技行动计划基础研究项目(K99-05-06)
关键词
改型沸石
除氟剂
吸附性能
version zeolite
defluoridation material
absorbability
