响应面法优化MAP法处理高浓度氨氮废水的研究  

Study on the treatment of high ammonia-nitrogen wastewater by optimizing MAP method using response surface analysis

作　　者：饶力[1] 汪晓军[1] 陈振国[1] 袁延磊[1] 郭冠超[1] 

机构地区：[1]华南理工大学环境与能源学院工业聚集区污染控制与生态修复教育部重点实验室.广东广州510006

出　　处：《工业水处理》2015年第6期61-64,共4页Industrial Water Treatment

摘　　要：采用鸟粪石法对氧化铁红厂高氨氮废水进行处理,以p H、n(N)∶n(Mg)和n(N)∶n(P)为主要影响因素,通过响应面法对处理过程进行了优化设计,得到拟合程度高的二次响应曲面模型。预测的最佳实验条件:p H=9.40,n(N)∶n(Mg)∶n(P)=0.8∶1∶1,此条件下氨氮去除率为99.77%。通过对镁盐和磷酸盐投加量的分析得到,当n(N)∶n(Mg)∶n(P)=0.9∶1.25∶1时,出水氨氮能够达到排放标准的要求,且出水正磷酸盐浓度较低。SEM和XRD表征结果显示,所得沉淀物大部分为磷酸铵镁。MAP method has been used for treating the high ammonia-nitrogen wastewater from an iron oxide red factory. The three main influencing factors are as follows：p H,n（N）∶n（Mg） 和 n（N）∶n（P）. The treatment course is optimized by response surface method（RSM）,so as to obtain the quadratic response curved model with high fitting degree. Under the forecast optimum experiment conditions：p H =9.40,n（N） ∶n（Mg） ∶n（P） = 0.8 ∶1 ∶1, the removing rate of ammonia-nitrogen could be 99.77%. By analyzing the dosages of Mg2＋and PO43-,it is found that when n（N）∶n（Mg）∶n（P）=0.9∶1.25∶1,the effluent concentration of ammonia-nitrogen could meet the requirements for the emission standard,and the concentration of orthophosphate could stay at a low level. The results of SEM and XRD characterization show that the sediments obtained are mostly magnesium ammonium phosphate.

关 键 词：响应面法 氧化铁红 高氨氮废水 磷酸铵镁 

分 类 号：X703[环境科学与工程—环境工程]