学术
摘 要:
以层析硅胶为载体,以活性氧化铝和活性氧化镁为吸附质制备出了两种载体型除氟剂。在相似条件下,前人研究活化沸石除氟剂的动态除氟容量为0.98 mg/g,本实验制备的两种除氟剂的动态除氟容量分别为1.00 mg/g和1.72 mg/g,明显高于文献值。对实验室制备的硅胶/活性氧化铝和硅胶/活性氧化镁除氟剂的除氟性能进行了测试,测试分析了高氟水溶液中的常规离子SO4^2-、Cl^-、Ca^2＋和Mg^2＋等对自制除氟剂的除氟容量的影响,表明这两种除氟剂有较好的抗干扰性。对比了高氟矿泉水的除氟数据,制备的除氟剂具有良好的除氟效果,为进一步制备除氟容量更高、抗干扰能力更强的除氟剂,提供了依据。[著者文摘]
文章出处:
《化工进展》-2007年26卷8期 -1170-1173页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-6613（2007）08-1170-04
Study on fluoride removal performance of silica/activated alumina and ailica/activated magnesia
CUI Weihua, DONG Bangzhen, LIU Fei （China University of Geosciences, Beijing 100083, China）
Abstract:
Using silica as carrier, activated alumina and activated magnesia as sorbent, two kinds of fluoride-removal materials were prepared. Orthogonal design was used to develop the best preparation steps. The fluoride removal capacity of silica/activated alumina and silica/activated magnesia was measured. Under the same conditions, the fluoride removal capacity of activated zeolite was 0.98 mg/g reported by prior researchers, but the fluoride-removal capacities of these two kinds of fluoride-removal materials were 1.00 and 1.72 mg/g respectively. The resistance to interference by SO4^2-, Cl^-, Ca^2＋ and Mg^2＋ were tested. The new fluoride removal materials had high resistance to interference by ions and high fluoride removal capacity.[著者文摘]
Key words:
drinking water; fluoride-removal capacity; silica/activated alumina; silica/activated magnesia; resistance to inreference by other irons in drinking water
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