化学沉淀法处理低碳高氨氮化肥废水实验研究

Experimental study on treatment of low carbon and high nitrogen fertilizer wastewater by chemical precipitation method

通过对化学沉淀法脱氮工艺条件的研究,确定不同pH值,不同Mg^2＋、PO4^3-投加量对氨氮去除效率的影响,得出处理低碳高氨氮化肥废水的最佳工艺条件为：pH值9.0-9.5、摩尔比Mg^2＋：NH4^＋：PO4^3-=1.5：1.0：0.9,此条件下氨氮的去除率在80%以上。

This paper researches the condition that chemical precipitation removal ammonia nitrogen. The research makes a conclusion of the optimal condition of dealing with these artificial wastewaters, they are pH between 9.0 and 9.5, magnesium, ammonium and phosphate molar ratios of 1.5 ： 1.0 ： 0. 9, in the optimal condition, the ammonia nitrogen removal rate is above 80%.