摘要
利用天然沸石为主要原料,制备出具有过滤功能和重金属离子吸附功能的天然沸石非对称陶瓷膜。非对称膜中支撑体、中间层膜和顶层膜的平均孔径分别为6.6μm、0.6μm和0.1μm。非对称膜单位压力降(1 MPa)下的氮气通量和水通量分别为:24.69×103m3/(m2h)和1.87×103m3/(m2h);对重金属离子(铅离子)吸附交换能力为7.13 mg/g。
Asymmnetric ceramic membrane with filter capacity and heavy metal ion exchange adsorption has been fabricated from natural zeolite. The mean pore sizes of the support, medium membrane and top layer membrane in the asymmnetry membrane are 6.6μm, 0.6μm and 0.1μm, respectively. The nitrogen and water fluxes of the asymmnetry membrane are 24.69× 10^3 m^3/（m^2h） and 1.87 × 10^3 m^3/（m^2h）, per MPa; The heavy metal of the whole asymmetry membrane is obtained as high as 7.13 mg/g.
出处
《矿物学报》
CAS
CSCD
北大核心
2007年第1期6-10,共5页
Acta Mineralogica Sinica
基金
安徽省高校青年教师科研资助计划(2006jq1006)
关键词
陶瓷膜
天然沸石
氮气通量
水通量
离子附交换能力
ceramic membrane
natural zeolite
nitrogen flux
water flux
ion exchange adsorption
