化学混凝法处理制革废水中铬的研究  

Study on the removal of chromium from tanning water by chemical coagulation method

作　　者：郭沛涌[1,2] 陈克诚[1] 刘英[1] 

机构地区：[1]华侨大学材料学院环境科学与工程系,福建泉州362021 [2]华侨大学工业生物技术福建省高等学校重点实验室,福建泉州362021

出　　处：《工业水处理》2008年第9期37-39,共3页Industrial Water Treatment

基　　金：福建省科技重大专项资助项目(2005HZ03-03)

摘　　要：试验研究了化学混凝法对制革废水中Cr6+、总铬的去除效果及作用机理。实验结果表明:在硫酸亚铁投加质量浓度为400mg/L,pH为6.5,快速搅拌1min(搅拌强度250r/min),慢速搅拌29min(搅拌强度65r/min)条件下,Cr6+、总铬去除率可分别达到97.2%、83.2%。比较不同的絮凝剂发现,聚合硫酸铁投药量较小,处理效果好,采用其去除制革废水中Cr6+及总铬经济、有效。Cr^6＋ and total Cr are removed from tanning wastewater by chemical coagulation method. The results show that the dose of FeSO4 is 400 mg/L, and pH is about 6.5. After being stirred quickly for 1 min and 250 r/min, then slowly for 29 min and 65 r/min, the removal rates of Cr^6＋ and total Cr are above 97.2% and 83.2% respectively. Treating tanning wastewater with PFS has the advantage of low cost and high effect.

关 键 词：化学混凝 制革废水 除铬 

分 类 号：X703.1[环境科学与工程—环境工程]