硫酸亚铁除地下水中六价铬  

Chromate Removal from Undergroumd Water with Fereous Sulfide

作　　者：王仲军[1] 

机构地区：[1]唐山学院教务处,河北唐山063000

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

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.

关 键 词：地下水 六价铬污染 中性还原 硫酸亚铁 

分 类 号：O611.63[理学—无机化学]