摘要
以钛白副产物FeSO4.7H2O为原料,制备了一种新型无机高分子混凝剂聚磷硫酸铁(PPFS)。研究了PPFS的合成过程和工艺条件,考察了KClO3用量、n(SO42-)/n(Fe),n(P)/n(Fe)等因素对PPFS絮凝性能的影响。结果表明,合成PPFS的适宜工艺条件为:氧化剂KClO3的用量为其理论用量的1.1倍;n(SO42-)/n(Fe)的最佳值为0.65;n(P)/n(Fe)的最佳值为0.05。合成的PPFS絮凝性能良好,能有效去除印染废水的浊度和CODCr,为钛白副产物的利用提供了一条新的途径。
A novel inorganic polymer flocculant, phosphoric polyferric sulfate (PPFS), was prepared with FeSO4 · 7H2O, a byproduct from titanium dioxide production, while the raw material, and the synthesizing process and technical condition were studied. The influence of some parameters such as KCIO3 dosage, n(SO4^2- )/n(Fe) ratio and n( P)/ n(Fe) ratio was discussed. The optical technical condition of PPFS synthesization is as follows: KClO3 dosage is 1.1 times of the theoretic dosage, n( S042 - )/n(Fe) ratio is 0.65, and n(P)/n(Fe) ratio is 0.05. It provides a new solution for utilization of titanium dioxide byproducts, and the synthesized PPFS shows excellent flocculation performance in effectively decreasing the turbidity and CODCr of the dyeing wastewater.
出处
《矿冶工程》
CAS
CSCD
北大核心
2008年第6期41-43,47,共4页
Mining and Metallurgical Engineering
关键词
钛白副产物
绿矾
聚磷硫酸铁
混凝剂
废水处理
titanium dioxide byproduct
copperas
phosphoric polyferric sulfate
flocculant
wastewater treatment