Abstract:The coagulating experiment with polyaluminum chloride (PAC) used as coagulant and chitosan (CTS) used as coagulant aid was carried out in Taylor-Couette reactor. The influence of the rotation speed of the inner cylinder (hydraulic condition) on the floc form and removal of turbidity were studied by particle image velocimetry (PIV). The results indicated that the effect of the coagulation with PAC was improved obviously after CTS was added, and its change tendency was consistent with that of adding PAC only. It was improved that hydraulic conditions is the key restricting factor of the coagulation efficiency; and adding coagulant aid is helpful to reduce the dependence on the hydraulic condition and improve the stability of coagulation process.
毛玉红, 冯俊杰, 常青, 张涛, 张鹏琦. 壳聚糖助凝对PAC混凝过程的影响[J]. 中国环境科学, 2015, 35(4): 1096-1102.
MAO Yu-Hong, FENG Jun-Jie, CHANG Qing, ZHANG Tao, ZHANG Peng-Qi. Influence of chitosan coagulat aid on the coagulation process of polyaluminum chloride. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(4): 1096-1102.