摘要
沸石是具有连通孔道,呈架状构造的含水铝硅酸盐矿物。特殊的晶体化学结构使沸石拥有离子交换、高效选择性吸附、催化等优异性能和环境属性。沸石能对各种废水进行有效的治理,如去除工业废水中的Pb2+、Cu2+、Cd2+、Cr2+、Fe2+等金属离子,生活污水中的NH3-N、磷酸根离子,生活污水及工业废水中的有机污染物,高氟水中的F-,以及放射性废水中的90Sr、137Cs。
Zeolite, a kind of aqueous silicoaluminate material with frame structure and numerous connecting holes, possesses excellent properties such as ion exchange, high efficient preferential adsorption and catalysis etc. These properties make it possible to use zeolite in purification of waste water. Inaddition to removing heavy metals, fluoride in industrial waste water and NH3-N, phosphates in domestic sewage, zeolite is used to degradate organic contaminants and remove radioactive nuclides such as ^90Sr and ^137~Cs.
出处
《河北化工》
2007年第4期58-62,共5页
Hebei Chemical Industry
关键词
沸石
废水
有机污染物
重金属
zeolite
waste water
organic contaminants
heavy metals
