羟基金属柱撑膨润土吸附磷的性能研究  

Adsorption of Hydroxy-metal Pillared Bentonite to Phosphate

作　　者：徐景华[1] 李益民[1] 谢益峰[1] 

机构地区：[1]绍兴文理学院化学系,浙江绍兴312000

出　　处：《非金属矿》2006年第5期44-46,共3页Non-Metallic Mines

摘　　要：将膨润土改性,制得羟基铁柱撑膨润土(OH-Fe-PILC)、羟基铝柱撑膨润土(OH-Al-PILC)和羟基铁铝复合柱撑膨润土(OH-Fe-Al-PILC)。研究表明:柱撑膨润土的层间距比原土的明显变大,在实验条件下对磷的吸附能力为:OH-Fe-Al-PILC>OH-Fe-PILC>OH-Al-PILC;对10mg/L的含磷废液的去除率分别为97.8%、97.7%和93.4%;对50mg/L的含磷废液的去除率分别为92.0%、87.3%和65.5%。Three absorbents hydroxy-iron-pillared bentonite, hydroxy-alumina-pillared bentonite, hydroxy-iron-alumina-pillared bentonite were prepared via ion exchange reaction. The research result showed that the interlayers of absorbents became bigger. The abilities of phosphorus adsorption for three absorbents were as following： hydroxy-iron-alumina-pillared bentonite 〉 hydroxy-iron-pillared bentonite 〉 hydroxy-alumina-pillared bentonite. The maximum removals were 97.8%,97.7% and 93.4% for 10mg/L phosphate solution.When the solution concentration was 50mg/L,the maximum removals were 92.0%,87.3% and 65.5%.

关 键 词：磷 吸附 羟基铁柱撑 羟基铝柱撑 羟基铁铝复合柱撑 膨润土 

分 类 号：X703[环境科学与工程—环境工程]