摘要
在实验室以聚合硫酸铁、Na2HPO4为原料合成聚合磷硫酸铁并将其用于焦化废水的絮凝处理。采用单因素实验考察了磷铁比、制备温度、制备时间、熟化时间及投加量等对絮凝效果的影响。结果表明,聚合磷硫酸铁对焦化废水进行絮凝处理时效果较好,在磷铁摩尔比为0.3、制备温度80℃、制备时间60min、熟化时间24h、投加量为0.8ml/L时,絮凝后废水TOC浓度最低可降至23.88mg/L,TOC去除率在60%以上。聚合磷硫酸铁与聚合硫酸铁的絮凝效果对比表明,聚合磷硫酸铁絮凝效果要优于聚合硫酸铁。
Na2HPO4 and Polymeric ferric sulfate （PFS） were used as raw materials to synthesize the polymeric phosphorus ferric sulfate （PPFS） in the laboratory, which was used for the treatment of coking wastewater. Effects of nPO4^3-/nFea＋ , preparation temperature, preparation time, aging time and dosage on fiocculation influence were discussed by single factor experiment. The results indicate that PPFS has superior flocculation effect for coking wastewater. Total organic carbon （TOC） minimum concentration can be reduced to 23.88 mR/L, and the removal rate of TOC is above 60 % when nPO43/nFe3 ＋ is 0.3, preparation temperature 80 ℃, preparation time 60min, aging time 24 h, and the dosage 0.8 ml/L. In addition, the flocculating efficiency comparison of PPFS and PFS shows that PPFS has better flocculating efficiency than PFS.
作者
王丽娜
张垒
陈琳
刘霞
徐兵
WANG Lina ZHANG Lei CHEN Lin LIU Xia XU Bing(Research and Development Center of WISCO, Wuhan 430080, China Wuhan Pingmei WISCO United Coking ＆ Chemical Corp. Ltd., Wuhan 430083, China)
出处
《武钢技术》
CAS
2017年第1期16-19,共4页
Wisco Technology
基金
武汉市科学技术计划项目(2014060202010128)
关键词
聚合磷硫酸铁
焦化废水
絮凝
Polymeric Phosphate Ferric Sulfate
coking wastewater
flocculation
