文档介绍：工业用水与废水
INDUSTRIAL WATER & WASTEWATER Vol . 43 No . 2 Apr., 2012
磁絮凝技术深度处理焦化废水的试验研究
张哲, 杨云龙
(太原理工大学环境科学与工程学院, 太原 030024)
摘要采用磁絮凝技术对焦化废水生化出水进行试验研究以氨氮浊度去除率为考察指标讨论
: , CODCr、、,
了聚合硫酸铁(PFS)投加量、聚丙烯酰胺(PAM)投加量、磁粉投加量、沉降时间、投加方式等因素对处理效果的
影响。结果表明: 先投加磁粉, 再投加 PFS, 最后加絮凝剂 PAM 的投加方式最好, 磁粉最佳投加量为 400 mg / L,
最佳投加量为最佳投加量为最佳沉降时间为氨氮浊度去除率分
PFS 800 mg / L, PAM 8 mg / L, 20 min。 CODCr、、
别达到 %、 % 和 %。采用该技术既可提高絮凝效果, 又缩短了沉降时间, 有很好的现实意义。
关键词: 磁絮凝; 深度处理; 焦化废水
中图分类号: 文献标识码: A 文章编号:%1009 - 2455(2012)02 - 0025 - 05
Experimental study on advanced treatment of coking wastewater by
ic ulation technology
ZHANG Zhe, YANG Yun-long
(College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)
Abstract: An experiment on the treatment of biochemical effluent of coking wastewater by ic
ulation technology was studied. Taking the removal rates of CODCr, ammonia nitrogen and turbidity as the
indexes of investigation, the influences of polyferric sulphate(PFS) dosage, polyacrylamide(PAM) dosage, ic
particle dosage, sedimentation time, dosing mode and some other factors on treatment effect were discussed. The
results of the test showed that: ic particle should be put into coking wastewater before PFS and PAM, and
the optimal dosage of the above three reagents were 400, 800 and 8 mg / L respectively, the optimal sedimen