摘要
本研究通过利用镁盐与上清液中的氨氮和磷酸根反应,形成磷酸铵镁沉淀,即鸟粪石晶体(MAP)。以MgCl2·6H2O和Na2HPO4·12H2O为沉淀剂,研究了影响该方法脱氮的因素。得出最佳工艺条件,反应时间为180min,pH值10,Mg:P:N的摩尔配比1:1:1,温度35℃,氨氮去除率为84.23%。
In this study, by using magnesium salt, the supernatant of ammonia nitrogen and phosphate reaction, we make the formation of magnesium ammonium phosphate precipitation, namely MAP. Using MgCl2 6H2O and Na2HPO4 12H2O as the precipitant, the author research the factors that influence the effect of denitrification. The author get the optimum process conditions, the reaction time 180min, pH10, Mg：P：N 1：1：1, temperature35℃, ammonia nitrogen removal rate of 84.23%.
出处
《工业技术与职业教育》
2013年第4期9-10,12,共3页
Industrial Technology and Vocational Education
基金
唐山市科技计划项目(121302005a)
关键词
氨氮
鸟粪石
结晶沉淀
ammonia nitrogen
MAP
crystallization precipitation
