MAP热分解产物的氨氮吸附性能研究

唐建军; 文艳芬; 邹原; 张伟; 周康根

环境工程学报

MAP热分解产物的氨氮吸附性能研究

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唐建军, 文艳芬, 邹原, 张伟, 周康根. MAP热分解产物的氨氮吸附性能研究[J]. 环境工程学报, 2009, 3(4): 625-629.

引用本文:

唐建军, 文艳芬, 邹原, 张伟, 周康根. MAP热分解产物的氨氮吸附性能研究[J]. 环境工程学报, 2009, 3(4): 625-629.

Tang Jianjun, Wen Yanfen, Zou Yuan, Zhang Wei, Zhou Kanggen. Adsorption properties of MAP thermal decomposition product to ammonianitrogen[J]. Chinese Journal of Environmental Engineering, 2009, 3(4): 625-629.

Citation:

Tang Jianjun, Wen Yanfen, Zou Yuan, Zhang Wei, Zhou Kanggen. Adsorption properties of MAP thermal decomposition product to ammonianitrogen[J]. Chinese Journal of Environmental Engineering, 2009, 3(4): 625-629.

MAP热分解产物的氨氮吸附性能研究

1.
深圳职业技术学院深圳市工业节水与城市污水资源化技术重点实验室, 深圳 518055
2.
中南大学冶金科学与工程学院，长沙 410083
基金项目:
国家自然科学基金资助项目（50674100）

深圳市科技计划项目（07K164D0）
中图分类号: X703.1

Adsorption properties of MAP thermal decomposition product to ammonianitrogen

1.
Shenzhen Key Lab of Industrial Water Conservation & Municipal Wastewater Resources Technology,Shenzhen Polytechnic,Shenzhen 518055
2.
School of Metallurgical Science and Engineering, Central South University,Changsha 410083
Fund Project:

摘要: 以TG-DTA、XRD、SEM等手段研究了MAP的热分解行为，并对热分解产物的氨氮吸附性能进行了研究。结果表明，热分解MAP可将水和氨释放出来，热分解产物粒径变小，结晶度降低，其XRD图谱主要出现MgHPO4·3H2O的特征衍射峰，但在吸附氨氮后，则主要出现MgNH4PO4·6H2O的特征衍射峰；控制MAP在100℃条件下热分解3 h再用于氨氮的处理药剂是合适的，氨氮吸附反应体系的pH值以10较为适宜，在此条件下反应40 min对氨氮的去除率即达90%。
- 氨氮 /
- 磷酸铵镁 /
- 磷酸氢镁 /
- 热分解
Abstract: Thermal decomposition behavior of MAP was studied by TG-TDA, XRD and SEM, and the adsorption properties to ammonia-nitrogen of the thermal decomposition product were also studied. The results indicated that water and ammonia could be released from MAP in the thermal decomposition process, the grain size and crystallinity of the thermal decomposition product decreased at the same time, its XRD patter mainly appeared the characteristic diffraction peak corresponding to MgNH4PO4·6H2O, and the characteristic diffraction peak of MgNH4PO4·6H2O mainly appeared after adsorption of ammonianitrogen. In the practical application, it was appropriate to control the temperature and time of MAP thermal decomposition to be 100℃ and 3 h, and pH value of the absorption reaction system to be 10, the removal rate of ammonianitrogen could be as high as 90% after 40 min reaction.
- ammonia-nitrogen /
- magnesium ammonium phosphate /
- magnesium hydrogen phosphate /
- thermal decomposition

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唐建军, 文艳芬, 邹原, 张伟, 周康根. MAP热分解产物的氨氮吸附性能研究[J]. 环境工程学报, 2009, 3(4): 625-629.

引用本文:

唐建军, 文艳芬, 邹原, 张伟, 周康根. MAP热分解产物的氨氮吸附性能研究[J]. 环境工程学报, 2009, 3(4): 625-629.

Citation:

MAP热分解产物的氨氮吸附性能研究

1. 深圳职业技术学院深圳市工业节水与城市污水资源化技术重点实验室, 深圳 518055
2. 中南大学冶金科学与工程学院，长沙 410083

收稿日期: 2008-07-29

基金项目:

国家自然科学基金资助项目（50674100）

深圳市科技计划项目（07K164D0）

关键词:

氨氮 /
磷酸铵镁 /
磷酸氢镁 /
热分解

摘要: 以TG-DTA、XRD、SEM等手段研究了MAP的热分解行为，并对热分解产物的氨氮吸附性能进行了研究。结果表明，热分解MAP可将水和氨释放出来，热分解产物粒径变小，结晶度降低，其XRD图谱主要出现MgHPO4·3H2O的特征衍射峰，但在吸附氨氮后，则主要出现MgNH4PO4·6H2O的特征衍射峰；控制MAP在100℃条件下热分解3 h再用于氨氮的处理药剂是合适的，氨氮吸附反应体系的pH值以10较为适宜，在此条件下反应40 min对氨氮的去除率即达90%。

English Abstract

Adsorption properties of MAP thermal decomposition product to ammonianitrogen

1. Shenzhen Key Lab of Industrial Water Conservation & Municipal Wastewater Resources Technology,Shenzhen Polytechnic,Shenzhen 518055
2. School of Metallurgical Science and Engineering, Central South University,Changsha 410083

Received Date: 2008-07-29

Fund Project:

Keywords:

Abstract: Thermal decomposition behavior of MAP was studied by TG-TDA, XRD and SEM, and the adsorption properties to ammonia-nitrogen of the thermal decomposition product were also studied. The results indicated that water and ammonia could be released from MAP in the thermal decomposition process, the grain size and crystallinity of the thermal decomposition product decreased at the same time, its XRD patter mainly appeared the characteristic diffraction peak corresponding to MgNH4PO4·6H2O, and the characteristic diffraction peak of MgNH4PO4·6H2O mainly appeared after adsorption of ammonianitrogen. In the practical application, it was appropriate to control the temperature and time of MAP thermal decomposition to be 100℃ and 3 h, and pH value of the absorption reaction system to be 10, the removal rate of ammonianitrogen could be as high as 90% after 40 min reaction.

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MAP热分解产物的氨氮吸附性能研究

Adsorption properties of MAP thermal decomposition product to ammonianitrogen

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MAP热分解产物的氨氮吸附性能研究

English Abstract

Adsorption properties of MAP thermal decomposition product to ammonianitrogen

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