Abstract: A series of composite flocculants-chitosan-coated titanium (TCTS) compositing polysilicate ferric (PSF) with different n(Fe)/n(Ti) are prepared from self-made TCTS and PSF.The structures of flocculants samples before and after compositing are analyzed,and their performances in treating with polyacrylamide (PAM) wastewater are evaluated as well.The effect of n(Fe)/n(Ti) on the structure and the performance of the TCTS-PSF is studied.It is found in the composited samples that the coordination and hydrogen bond exists between TCTS and PSF,and a loose cluster amorphous polymer is formed by space network crosslinking.The composited sample has excellent flocculation performance.The removal rate of PAM can reach 97% when n(Fe)/n(Ti)=0.75,flocculant dosage is 0.2 mL·L-1 and the PAM concentration is 100 mg·L-1.
刘梅, 黄健, 王世杰, 何燕君, 任富勇. 载钛壳聚糖-聚硅酸铁复合絮凝剂的结构与性能[J]. 现代化工, 2018, 38(2): 115-118,120.
LIU Mei, HUANG Jian, WANG Shi-jie, HE Yan-jun, REN Fu-yong. Structure and performance of chitosan-coated titanium and polysilicate ferric composite flocculant. Modern Chemical Industry, 2018, 38(2): 115-118,120.
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