摘要
在缺氧的环境下,利用零价铁(ZVI)和硫酸盐还原菌(SRB)协同处理含铀废水,通过正交实验考了察初始pH,铀的初始浓度,SO42-,NO3-对ZVI-SRB协同处理含铀废水的影响.结果表明,铀的初始浓度对ZVI-SRB协同处理铀废水的影响最大,其次是NO3-,pH值,SO42-;在500mL的水样中,其最佳的还原条件是:pH为5,SO42-为3000mg/L,NO3-为400mg/L,铀的初始浓度为160mg/L;在最佳还原条件下,铀的去除率为93.49%.
Wastewater containing uranium was treated by ZVI - SRB under hypoxic conditions. The initial uranium concentration, SO42-, NO3 - and pH on ZVI- SRB uranium precipitation are studied through orthogonal experiment. The result shows that the initial uranium concentration influencesmost greatly on the removal rate, following SO42- , NO3 - and pH. The optimal removal conditions for 500 mL wastewater containing uranium are the initial uranium concentration 160 mg/L, pH5, SO42- 3 000 mg/L, NO3 - 400 mg/L. The removal efficiency of uranium in the best reducing conditions was 93.49%.
出处
《矿业工程研究》
2011年第3期60-63,共4页
Mineral Engineering Research
基金
湖南城市学院科技计划资助项目(2010xj002)
关键词
零价铁
硫酸盐还原菌
铀废水
正交实验
zero -valent iron
sulfate -reducing bacteria
wastewater containing uranium
orthogonal experiment
