Abstract:L9(34) orthogonal experiments were carried out to investigate the optimum condition of the organic modified montmorillonite by quaternary phosphonium. The removal rate of Phaeocystis globosa with the concentration of 20.0 mg/L of modified montmorillonite, which the prepared conditions, at a temperature of 60.0℃ , at a pH 7.0, at stirring time of 6h, and the mole rate between the cationic exchange capacity of montmorillonite and quaternary phosphonium 1.5:1.0 was 93.2% after 48 h. The results of FT-IR, XRD and SEM characterized the surface structure of modified montmorillonite showed that quaternary phosphonium can be inserted effectively into the interlayer of momtmorillonite , reduced the electrostatic attraction between the momtmorillonite and algal cell, which cause the effect on adsorption of algal cell increasing. The results of compared the removal rate of the montmorillonite and kaolin modified by quaternary phosphonium, and the modified montmorillonite by quarternary ammonium indicate that modified montmorillonite by quaternary phosphonium was superior to others.
刘玉芳, 赵玲, 尹平河, 李松涛. 季磷盐改性蒙脱土去除球形棕囊藻的实验研究[J]. 中国环境科学, 2011, 31(8): 1295-1299.
LIU Yu-Fang, ZHAO Ling, YIN Ping-He, LI Song-Tao. Study on removal of Phaeocystis globosa with organic modified montmorillonite by quaternary phosphonium. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(8): 1295-1299.