铁系净水剂混凝过程的计算机模拟  

COMPUTER SIMULATION FOR THE COAGULATION OF IRON-BASED WATER CLARIFYING AGENT

作　　者：阮复昌[1] 莫炳禄[1] 徐国想[1] 公国庆[1] 卢燕玲[1] 

机构地区：[1]华南理工大学化学工程研究所

出　　处：《化学反应工程与工艺》1998年第1期66-70,共5页Chemical Reaction Engineering and Technology

基　　金：广东省自然科学基金

摘　　要：分析了铁系净水剂的混凝机理及动力学行为。根据电离平衡方程，推导出了一个计算混凝过程中含铁络合物浓度分布的计算表达式，并给出了初始铁含量分别为１０－３ｍｏｌ／Ｌ、１０－４ｍｏｌ／Ｌ、１０－５ｍｏｌ／Ｌ以及１．５ｍｏｌ／Ｌ以上时的模拟计算结果。最终的模拟计算结果表明，铁盐在水溶液中自发形成的主要是单核铁羟基络合物，多核络合物必须通过工业化方法才能合成。General flocculating mechanisms and dynamic behaviors of iron-based water clarifying agents are analysed and discussed in this paper. The expressions calculating the concentration distribution of Fe complexes in the coagulation process of iron-based water clarifying agents are deduced based on the dissociation equilibrium equations, and the final calculating results are presented at the initial ferric concentration of 10^-3 mol/L, 10^-4 mol/L, 10^-5mol/L and more than 1.5 mol/L respectively. The results show that the main species existed in aqueous solution of various ferric salts are mononuclear, the polynuclear cannot form spontaneously from ferric salts and must be synthesized artificially.

关 键 词：铁系净水剂 净水剂 计算机模拟 聚合硫酸铁 混凝 

分 类 号：TU991.22[建筑科学—市政工程]