An experiment on landfill leachate treatment by composite process of iron-carbon micro-electrolysis and magnesium ammonium phosphate(MAP) precipitation
铁炭微电解-MAP沉淀法联合预处理垃圾渗滤液

Iron-carbon micro-electrolysis and magnesium ammonium phosphate(MAP)precipitation were applied to treat landfill leachate in this experiment.The experimental results show when the ratio of iron and car-bon is 5:1,the pH is 3,the reaction time is 3 hours,the removal rate of COD by iron-carbon micro-electrolysis process is 47.5%.When the ratio of n(Mg~(2+)):n(PO_4~(3-)):n(NH_4~-) is 1.4:1:1,the pH is 9,the reaction time is 1 hour,the removal rate of ammonium nitrogen is up to 79.7%.