用磷酸铵镁沉淀法去除沈阳老虎冲垃圾渗滤液中的氨氮

Removal of NH_3-N From Laohuchong Landfill Leachate by Magnesium Ammonium Phosphate Precipitation in Shenyang

叙述了磷酸铵镁沉淀法去除垃圾渗滤液中氨氮的基本原理,分析了MAP法对氨氮的去除效果,对比了不同的镁盐及不同的反应时间对氨氮的去除效率。结果表明,MAP法对氨氮的去除效率高,产物中重金属的含量低。同时,氧化镁比氯化镁具有更好的氨氮去除综合优势。

We described the principle of NH3 -N removal method in landfill leachate and analyzed the NH3 -N removal effect in MAP precipitation. At the same time, we contrasted the NH3-N removal effect about different magnesium compound and different reaction time. The results indicated that it had high NH3-N removal effort and low heavy metals content in MAP precipitation, and magnesia had more advantages than magnesium chloride for NH3-N removal.