| 锰氧化物制备及其对锰和氨氮的去除研究 |
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| 引用本文： | 董川,张瑞峰,张建民,郭英明,王旭.锰氧化物制备及其对锰和氨氮的去除研究[J].水处理技术,2021(2):71-76,89. |
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| 作者姓名： | 董川 张瑞峰 张建民 郭英明 王旭 |
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| 作者单位： | 西安工程大学城市规划与市政工程学院 |
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| 基金项目： | 陕西省教育厅专项科研计划项目(20JK0656);西安工程大学博士科研启动项目(107020418);陕西省大学生创新创业训练计划项目(S201910709081)。 |
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| 摘 要： | 为制备具有优艮吸附性能的材料,采用高锰酸钾氧化(分别在酸性条件和中性条件下进行)和空气自然氧化水中2价锰,制备了3种锰氧化物(ORIG-MnOx、Na2CO3-MnOx、O2-MnOx),对其结构进行了表征,并探究了对水中NH4+-N和Mn2+污染的去除特性及影响因素.结果表明,所制备的ORIG-MnOx与Na2CO3...
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| 关 键 词： | 锰氧化物 吸附 去除 Mn2+ NH4+-N |
Preparation of Manganese Oxide and Its Removal Performance of Manganese and Ammonium |
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| DONG Chuan,ZHANG Ruifeng,ZHANG Jianmin,GUO Yingming,WANG Xu.Preparation of Manganese Oxide and Its Removal Performance of Manganese and Ammonium[J].Technology of Water Treatment,2021(2):71-76,89. |
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| Authors: | DONG Chuan ZHANG Ruifeng ZHANG Jianmin GUO Yingming WANG Xu |
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| Affiliation: | (School of Urban Planning and Municipal Engineering,Xi’an Polytechnic University,Xi'an 710600,China) |
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| Abstract: | In order to prepare materials with excellent adsorption performance,potassium permanganate(performed under acidic and neutral conditions)and air were used to oxidize Mn2+in water and three species of manganese oxides(ORIG-MnOx,Na2CO3-MnOx,O2-MnOx)were prepared respectively.Their structures were characterized and the performance and influence factor of the removal of NH4+-N and Mn2+in water were investigated.The results showed that,although the prepared ORIG-MnOx and Na2CO3-MnOx were ε-MnO2 with lower crystallinity,their morphology and fine structure were significantly different,and O2-MnOx was hausmannite(Mn3O4)with higher crystallinity.ORIG-MnOxand Na2CO3-MnOx had better Mn2+and NH4+-N removal performance than O2-MnOx,and the adsorption performance of Na2CO3-MnOxwas the best.The removal process of Mn2+and NH4+-N could be fitted with Langmuir adsorption isotherm model and quasi-second-order reaction kinetics model.This study can provide theoretical and technical support for the removal of NH4+-N and manganese based on manganese oxide. |
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| Keywords: | manganese oxide adsorption removal Mn2+ NH4+-N |
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