摘要
通过小试和中试,采用硫酸亚铁还原/混凝沉淀工艺处理模拟突发性铬污染原水。结果表明,此工艺对突发性铬污染原水的处理效果较好,当原水的Cr6+高达0.5 mg/L、不调节pH、Fe2+/Cr6+值(质量比)为16时,对Cr6+和总铬的去除率均可达100%,且出水的总铁<0.3 mg/L、SO24-远低于250 mg/L,出水水质完全满足《生活饮用水卫生标准》(GB 5749—2006)的要求。此方法简单、经济且安全,是切实可行的饮用水原水突发性铬污染应急处理技术。
The combined process of ferrous sulfate reduction and coagulation sedimentation was used to treat the simulated raw water polluted accidentally by chromium in laboratory and pilot tests. The results show that the combined process has good treatment efficiency of raw water polluted accidentally by chromium. When the concentration of Cr^6＋ in raw water is 0.5 mg/L, pH value is not regulated, and the mass ratio of Fe^2＋ to Cr^6＋ iS 16, the removal rates of Cr^6＋ and total chromium are all 100%. The total i- ron in the outflow is Jess than 0.3 mg/L, and SO4^2- is far less than 250 mg/L. The effluent quality meets the requirements of Standards for Drinking Water Quality （ GB 5749 - 2006）. This method is simple, economic and safe, and it is a feasible emergency treatment technology of accidental chromium pollution in raw drinking water.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第11期136-138,共3页
China Water & Wastewater
关键词
饮用水原水
突发性铬污染
硫酸亚铁
raw drinking water
accidental chromium pollution
ferrous sulfate
