鸟粪石沉淀法回收污水中磷的试验研究  

Study on the Recovery of Phosphorus from Wastewater by Struvite Precipitation Method

作　　者：袁鹰[1] 曹健[1] 刘明源[1] YUAN Ying;CAO Jian;LIU Mingyuan(Taizhou Polytechnic College,Taizhou 225300,China)

机构地区：[1]泰州职业技术学院,江苏泰州225300

出　　处：《化学与粘合》2023年第6期534-536,560,共4页Chemistry and Adhesion

基　　金：2021年泰州职业技术学院大学生创新创业训练计划项目(编号:YJDC2021001)。

摘　　要：对鸟粪石沉淀法回收污废水中磷做试验研究,通过正交试验法研究pH值、N∶P物质的量比、Mg∶P物质的量比及反应时间对磷回收效果的影响,并确定回收磷的最佳反应条件。结果表明:影响因素重要性依次为pH值、N∶P物质的理比、Mg∶P物质的量比和反应时间;在pH值=10,物质的量比n(N)∶n(Mg)∶n(P)=4∶1.4∶1,反应时间为20 min时回收磷最佳。The struvite(MAP)precipitation method is applied to treat wastewater for phosphorus recovery.The effects of different factors on the phosphorus recovery are investigated by the orthogonal design such as pH,molar ratio of N∶P,molar ratio of Mg∶P and reaction time.The results show that the importance of influencing factors follows the order of pH>molar ratio of N∶P>molar ratio of Mg∶P>reaction time.The optimum reaction conditions for MAP precipitation method are showed as follows:pH=10,the molar ratio of N to Mg to P is 4∶1.4∶1,the stirring speed is 200 r/min and the reaction time is 20 min.

关 键 词：鸟粪石沉淀法 磷回收率 正交试验 

分 类 号：X799[环境科学与工程—环境工程]