磷酸铵镁(MAP)法处理高浓度氨氮废水,采用磷酸氢二钠和氯化镁作为沉淀剂,按照Mg︰N︰P=1.1︰1︰1比例投料,调节反应pH=10,使氨氮转化成MgNH4PO4·6H2O沉淀.实验结果表明氨氮去除率>99 %,出水氨氮浓度<60 mg/L,总磷1 mg/L左右,为后续深度处理创造了条件.%Treatment of high concentration ammonia nitrogen wastewater by the method of magnesium ammonium phosphate (MAP). Used Na2HPO4and MgCl2as the precipitant, Mg:N:P=1.1:1:1, pH= 10, transformation of ammonia-nitrogen into MgNH4PO4·6H2O, the results showed that ammonia removal rate was 99 %. The ammonia-nitrogen concentration was less than 60 mg/L, the remained phosphorus concentration was about 1mg/L, which created the conditions of further treatment.
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