磷酸氨镁沉淀法降解水体中微量氨氮  

Ammonia-magnesium phosphate precipitation degrades the trace ammonia nitrogen in water

作　　者：赵业军[1] 王欢 卢莹华 王莹莹 ZHAO Ye-jun;WANG Huan;LU Ying-hua;WANG Ying-ying(College of Life Science&Chemistry,Wuhan Donghu University,Wuhan 430212,China;Pharmacy Faculty,Hubei University of Chinese Medicine,Wuhan 430065,China)

机构地区：[1]武汉东湖学院生命科学与化学学院,武汉430212 [2]湖北中医药大学药学院,武汉430065

出　　处：《湖北农业科学》2020年第10期75-76,83,共3页Hubei Agricultural Sciences

基　　金：湖北省教育厅科研计划项目(B2018292)。

摘　　要：研究磷酸氨镁沉淀法降解水体中的微量氨氮,探讨反应时间、NH4^+/PO4^3-/Mg^2+摩尔比等因素对氨氮降解效果的影响。结果表明,在氨氮初始浓度为2μg/mL的1 L模拟水体中,优化反应条件为投入N、P、Mg的摩尔比为1∶1.1∶1.4,反应时间为90 min,水中氨氮去除率可以达78.12%。当将其运用到九曲河水的氨氮降解时,由于水体中含有各种杂质,导致水体中氨氮降解率下降,为70.02%。The degradation of trace ammonia nitrogen in water by ammonia-magnesium phosphate precipitation method was studied,and the effects of reaction time,NH4^+/PO4^3-/Mg^2+ molar ratio and other factors on the degradation of ammonia nitrogen were discussed.The results showed that when 1 L of ammonia nitrogen in water when the initial concentration of 2μg/mL,to optimize the reaction conditions as follows:Input N,P,Mg of the mole ratio of 1∶1.1∶1.4,the reaction time of 90 min,the water ammonia nitrogen removal rate can reach 78.12%.When it was applied to the ammonia nitrogen degradation of Jiuqu river,the degradation rate of ammonia nitrogen in water was reduced to 70.02% due to the various impurities in the water.

关 键 词：磷酸氨镁 氨氮 沉淀法 氨氮降解 

分 类 号：X703.1[环境科学与工程—环境工程]