Preparation and Performance of Polysilicate Aluminum Ferric-Chitosan
A new-type composite flocculant, Polysilicate Aluminum Ferric-Chitosan (PSAF-CTS), was prepared using polysilicate aluminum ferric (PSAF) and Chitosan(CTS). The performance of PSAF-CTS was analyzed by testing turbidity and chrominance of papermaking wastewater, as well as removal efficiency of Cu2+, Ni2+, Zn2+, Cd2+, Cr6+of heavy-metal wastewater. The orthogonal experiments showed that the optimal preparation conditions were pH 1.6, material ratio 1:1, reaction temperature 70℃, and reaction time 24 h. For papermaking wastewater, the test of turbidity and chrominance indicated that the highest removal efficiencies were 99.5% and 92.3%, respectively, For different heavy-metal ions, the best removal efficiency of Cr6+and Ni2+were 100% and 82.2%, respectively.
WU Jun XUE Yong-liang YANG Gang SUN Bai-ye ZhANG Lin
College of Resources & Environment, SichuanAgricultural University, SAU Ya’an, China College of Resources & Environment, Sichuan Agricultural University, SAU Ya’an, China
国际会议
成都
英文
1-4
2010-06-18(万方平台首次上网日期,不代表论文的发表时间)