垃圾渗滤液的零价铁强化厌氧处理技术

摘要

该文采用零价铁强化中转站垃圾渗滤液的厌氧处理方法,考察了进水浓度、初始pH和铁投加量对渗滤渡污染物的去除效果,并探讨了零价铁强化厌氧处理机理.结果表明零价铁的投加可有效强化渗滤液的厌氧处理效果,在进水浓度为22656 mg/L、初始pH为7.0、铁投加量为600 mg/L的最佳条件下,经过50 d厌氧处理,出水COcr降低至7800 mg/L,COD去除率为65.1％.而未投加铁的体系出水CODcr为11560 mg/L,COD去除率为48.2％.%Leachate from waste transfer station was treated by Fe0 enhanced anaerobic treatment in this paper.Effect of influent concentration,initial pH and Fe0 dosage on COD removal efficiency was investigated.The results show that leachate effluent CODcr can attain 7800 mg/L and COD removal rate is 65.1％ after 50 days' reaction under the optimum operation conditions,when the influent CODcr is 22 656 mg/L,initial pH is 7.0 and Fe0 dosage is 600 mg/L.While effluent CODcr is around 11 560 mg/L and COD removal rate is 48.2 ％ without Fe0 dosage.