MAP法处理高浓度氨氮老龄垃圾渗滤液研究  

Research on MAP Process for Removal of High Ammonia-enhanced Concentration from Mature Landfill Leachate

作　　者：李国生[1] 颜杰[1] 李红[1] 邵旭[1] 王秀丽[1] 

机构地区：[1]四川理工学院材料与化学工程系,四川自贡643000

出　　处：《广东化工》2011年第5期175-177,共3页Guangdong Chemical Industry

摘　　要：针对老龄垃圾渗滤液中的高浓度氨氮,采用MAP法进行去除研究。结果表明,在pH为9.5,P∶N∶Mg摩尔比为1.0∶1.0∶1.3,搅拌速度为240 r/min,分两次投加镁盐,在总反应时间为50 min的条件下,NH3-N去除率可以达到94.1%,COD去除率为14.9%。处理后垃圾渗滤液的NH3-N值为97 mg/L,COD值为3086 mg/L,降低了后续处理负荷。Treatment of ammonia nitrogen mature landfill leachate with MAP process was studied.The results showed that the removal rates of ammonia-nitrogen and COD reached 94.7 % and 14.9 % under the condition that,the pH was 9.5,the molar ratio of P,N and Mg was 1.0∶1.0∶1.4,the stirring velocity was 240 r/min,the magnesium salt was dosed twice,the total reaction time was 50 min.Concentration of ammonia-nitrogen and COD of the landfill leachate after treatment was 97 mg/L and 3086 mg/L,which mitigated the pressure of the suspended treatment.

关 键 词：老龄垃圾渗滤液 磷酸铵镁 氨氮去除率 

分 类 号：TQ[化学工程]