多孔铁-碳-稀土合金填料对高盐废水中氯离子的去除  

Removal of chloride ion in high salt wastewater by porous iron-carbon-rare earth alloy filler

作　　者：周贵忠[1] 王绚[1] 刘建庭[1] 王兆丰[1] 李少香[1] 

机构地区：[1]青岛科技大学环境与安全工程学院,青岛266042

出　　处：《环境工程学报》2013年第6期2167-2172,共6页Chinese Journal of Environmental Engineering

基　　金：国家科技部支撑计划项目(2011BAC10B04)

摘　　要：高盐废水是目前水处理领域的难点,主要研究了不同因素下多孔铁碳合金填料对氯离子的去除效果,及Cl-的去除机理。在进水pH为2,停留时间为60 min,Cl-浓度20 000 mg/L条件下进行实验,通过静态实验和连续实验确定Cl-主要去除途径为微电解过程引起的填料吸附。这种合金填料对实际高氯废水也有较好的处理效果,针对变性淀粉废水,在最优条件下填料对废水中氯离子有较强的吸附去除能力,同时COD去除率能达到57%,废水的可生化性得以大幅度提高。High salt wastewater, especially the high chlorine wastewater, is difficult to be treated. Chloride removal efficiency of porous iron carbon alloy filler in different factors and an in-depth research of C1- removal mechanism were studied. The experiments were carried out under the conditions of initial pH of 2, reaction time of 60 rain, C1- concentration of 20 000 mg/L. It had found that the mainly removal pathway of C1 - was filler ad- sorption caused by micro electrolysis process through static and continuous experiments. Experiments showed that this alloy filler also had a good treatment effect on actual high chlorine wastewater. The filler had strong adsorp- tion capacity on CI- in modified starch wastewater under the optimal conditions. The removal rate of COD could reach 57% and the biodegradability of wastewater was ~reatlv improved at the same time.

关 键 词：铁-碳-稀土合金填料 高氯废水 变性淀粉废水 可生化性 

分 类 号：X703.1[环境科学与工程—环境工程]