MAP法处理焦化氨氮废水的实验研究  

Experimental research on treatment for Ammonium Nitrogen from coking wastewater by MAP process

作　　者：李晓燕[1] 胡红伟[1] 

机构地区：[1]平顶山工学院,河南平顶山467044

出　　处：《平顶山工学院学报》2008年第3期32-34,38,共4页Journal of Pingdingshan Institute of Technology

摘　　要：采用MgCl2.6H2O和Na2HPO4.12H2O使焦化废水中的氨氮形成磷酸氨镁沉淀的化学沉淀法(MAP法),通过正交实验和单因子优化实验,研究了pH值、反应时间、药剂配比对氨氮去除效果的影响。实验结果表明:在pH值为9.0,反应时间为20min,n(Mg2+):n(NH4+):n(PO43-)=1.4∶1.0∶1.0条件下,氨氮的去除率达到96.3%。Using MgCl2·6H2O and Na2HP4·12H2O to react with ammonium- nitrogen of eoking wastewater, forming magnesium ammonium phosphate （MAP process）, through orthogonal technical treatment processing and singh- factor optimization processing study the effects of pH value, the reaction time, and the ratio of Mg2 ＋ ： NH4＋ ： PO4^3- on the removal of ammonium - nitrogen. The experimen- tal results demonstrates that the pH value is about 9.0, the reaction time is 20 minutes, under the condition of n（Mg2＋）：n（NH4＋）：n（PO4^3-）=1.4：1.0：1.0, the removal rate of ammonium-nitrogen is up to 96.3%.

关 键 词：磷酸铵镁(MAP) 焦化废水 氨氮 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]