CS/PEG/PFT膜制备及对含铜废水的处理  

Preparation of CS / PEG / PFT membrane and for treatment of cupric wastewater

作　　者：吴宁[1] 薛建军[1] 王玲[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《环境工程学报》2015年第5期2119-2124,共6页Chinese Journal of Environmental Engineering

基　　金："十一五"国家科技支撑计划项目(2006BAD04A12)

摘　　要：实验将溶胶凝胶法和高分子辅助倒相法结合,制备出一种新型的壳聚糖/聚乙二醇/亚铁氰化钾钛(CS/PEG/PFT)复合膜,通过FT-IR和SEM对膜进行表征后,将其用于模拟铜废水的吸附和脱附实验,并探究出膜吸附的最佳工艺条件为:p H 5.50、实验温度55℃、实验时间2 h,该条件下,膜对铜离子最大吸附量为9.85 mg/g,去除率达到95%以上。CS/PEG/PFT膜的除铜过程符合Langmuir等温吸附方程(y=0.0597x+0.0168),线性相关度达到0.9917。A novel highly-efficiency chitosan polyethylene glycol potassium ferrocyanide titanium( CS /PEG / PFT) membrane was synthesized by the combination of sol-gel and polymer assisted phase inversion. Characterized by the Fourier transform infrared spectroscopy( FT-IR) and scanning electron microscope( SEM),the membrane was subject to a simulation test of adsorption and desorption in copper water. The optimum process conditions were obtained by a series of experiments as follows:p H value of 5. 50,reaction temperature of 55℃and reaction time of 2 hours. Under these conditions,the maximum adsorbing capacity of cupric ion reached9. 85 mg / g,and the removal efficiencies exceeded 95%. The copper removing process of CS / PEG / PFT membrane accorded with Langmuir equation( y = 0. 0597 x + 0. 0168) with a liner relevancy of 0. 9917.

关 键 词：壳聚糖 复合膜 吸附 

分 类 号：X703[环境科学与工程—环境工程]