The research of micro-electrolysis process composed of discarded iron slag and coke pretreating landfill leachate

摘要

［中文文摘］研究表明,废铁屑和焦炭微电解是预处理垃圾渗滤液的一种有效方法,可去除垃圾渗滤液COD、色度和腐殖酸等污染物质,改善其可生化性、降低负荷,为后续生化处理创造良好的条件。通过静态正交实验确定废铁屑和焦炭最佳投加体积比为1∶3;最佳反应pH值为4;动态实验中,反应时间为1 h时,COD和色度去除率分别高达68%和91%;BOD/COD从0.3提高到0.5左右。［英文文摘］The study shows that micro-electrolysis process is an effective method to pretreat landfill leachate.It can remove much of COD,chroma,humic acid and can improve leachate′s biodegradable ability to create good conditions for following biochemical treatment.The optimal volume ratio of iron slag and coke is(1∶3) by orthogonal array experiments;the optimum pH is 4.In continuous feed experiments,the removal rates of COD and chroma could reach 68% and 91% respectively;BOD/COD is increased from 0.3 to about 0.5.