聚铁溶液pH值及盐基度的相关性研究  

STUDIES ON THE INTERRELATIONS BETWEEN PH AND ALKALIZED DEGREE OF POLYFERRIC AQUEOUS SOLUTION

作　　者：阮复昌[1] 郑冀鲁[1] 莫炳禄[1] 范娟[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,广东广州510640

出　　处：《化学反应工程与工艺》2000年第2期175-179,共5页Chemical Reaction Engineering and Technology

基　　金：广东省自然科学基金!资助项目 (编号 9340 0 30 0 6)

摘　　要：对聚铁溶液进行 p H值和盐基度的分析和估算 ,给出了聚铁溶液的极限 p H值和极限盐基度与总溶解铁浓度的关系曲线。最终计算结果表明 :在平衡条件下 ,聚铁溶液的 p H值和盐基度具有相关性 ,即当其中一个参数发生变化时 ,另一个参数必然要发生相应的改变。随着总溶解铁浓度的不断升高 ,极限 p H值单调下降 ,而极限盐基度却单调递增。对于铁含量为 1 60 g/L的标准聚铁溶液 ,其最大 p H值为 1 .31 4,最高盐基度为 1 9.99%。The pH values and alkalized degrees were analyzed and estimated for polyferric aqueous solution, then the limit pH values and limit alkalified degrees with different total dissolved ferric concentrations were given. The results indicated that under equilibrium states the pH value and the alkalized degree are closely related; once each of them changes, the other will inevitably take place corresponding changes. With the increase of total dissolved ferric concentrations, the limit pH values uniformly decreased, but the limit alkalified degrees demonstrate the contrary. For the standard polyferric aqueous solution with 160 grams ferric per litter, the maximum pH value was 1.314, and the greatest alkalized degree was 19.99%.

关 键 词：聚铁溶液 PH值 盐基度 相关性 净水 絮凝剂 

分 类 号：TQ314.253[化学工程—高聚物工业] TQ324.407