聚丙烯酰胺絮凝机理的研究

本文以均方根末端距做为聚丙烯酰胺(PAM)在水溶液中的形态参数,研究PAM达到最佳絮凝状态的形态条件,结果表明:采用PAM做絮凝剂处理水,可用形态参数均方根末端距做为控制条件,越大,PAM的絮凝效果越好,对确定的水中离子条件,可模拟出其,PAM投量0—1mg/L时能取得最佳效果,PAM的最佳水解度是54％。

Study on the Flocculation Mechanism of Poly-crylamide

This paper deals with the shape condition of polyacrylamide at the optimum flocculation state using Mean Square Root End-to-End Distance as the shape pa-ramenter of polyacrylamide in aqueous solution. It shows that Mean Square Root End-to-End Distance can be used as the floceulation control factor. When using polyacrylamide to treat water and the bigger the Mean Square Root End-to-End Distance is, the better the results of flocculation of polyacrylamide. Various factors affect the shape of polyacrylamide in aquious solution while in the determined ionscondition Mean Square Root End-to-End Distance can be limited. Hydrolysis test reveals that optimum solubility of polyacrylamide is 54%. It is found that at the range of 0 to 1 mg/L of polyacrylamide the effect of flocculation can come up to optimum and the optimum concentration of polyacrylamide is 0.4 mg/L. In addtion, the shape of polyacrylamide in aqueous solution has been observed by electromicroscope with a satisfied result.