摘要
研究了受铬污染地下水的治理方法和技术,发现地下水中六价铬在中性条件下很低容易用亚铁除去。Fe(Ⅱ)/Cr(Ⅵ)摩尔比为3,六价铬去率达100%。反应速度快。可数分种内完成。Fe(Ⅱ)还原Cr(Ⅵ)可采用接触过滤,不需要反应池,投资少,运行费用低。
A study was made about the methods and technology of purifying underground water polluted by chromium. It confirmed an easier removal of hexavalent chromium with Ferrous Sulphate due to its low rate under a neutral condition. The Fe（ Ⅱ ）/Cr（Ⅵ） （mole ratios） of 3 was needed for Cr（Ⅵ） completely converted into Cr（Ⅲ）. The rates of aqueous Cr（Ⅵ） reduction by the aqueous Fe（ Ⅱ ） were extremely rapid. The cost of removing Cr（Ⅵ） was very low for contact filtration with the absence of reflection pool, low cost and low operation fee.
出处
《唐山师范学院学报》
2006年第2期41-42,共2页
Journal of Tangshan Normal University
关键词
地下水
六价铬污染
中性还原
硫酸亚铁
underground water
hcxavalcnt chromium pollution
neutral reduction
Ferrous Sulphate
