新型铁碳微电解填料处理含苯污染地下水的实验

Treatment of Benzene in Simulated Polluted Groundwater by New Iron-Carbon Micro-Electrolysis Packing

将土壤、铁屑、活性炭以及添加剂按一定比例混合、造粒,再经过加热焙烧后制备成新型铁碳微电解规整化填料,以模拟含苯类污染质的污染地下水为研究对象,考察了粘土、铁碳比、填料粒径、粘土比例、添加剂及焙烧温度等因素对微电解过程处理效果的影响。结果表明:粘土经焙烧后对苯的吸附作用很小;在铁碳质量比为6∶1,粘土的质量分数为25%,焙烧温度为300℃的制备条件下,填料对苯的处理效果最佳。用该填料处理含苯系物污染地下水,连续稳定运行后,处理率可以达到80%以上。

The iron-carbon micro-electrolysis packing was made by the method of calcination.The influences of clay,Fe/C mass ratio,clay proportion,packing diameter,additives and calcination temperature on the removal rate of simulated benzene groundwater were investigated.The results showed that the adsorption effect of clay after calcination was little;The optimum conditions of preparation for treating were Fe/C mass ratio 6∶1,clay proportion 25%,calcination temperature 300℃.The packing was used to treat BTEX groundwater,and the removal rate was over 80% after running steadily.