| NH+4对镁改性生物炭除磷效果的影响 |
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| 引用本文： | 郅蒙蒙,王鹏飞,侯泽英,曹晶,储昭升,杨永哲.NH+4对镁改性生物炭除磷效果的影响[J].环境科学,2019,40(2):669-676. |
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| 作者姓名： | 郅蒙蒙 王鹏飞 侯泽英 曹晶 储昭升 杨永哲 |
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| 作者单位： | 西安建筑科技大学环境与市政工程学院, 西安 710055;中国环境科学研究院湖泊环境研究所, 北京 100012;湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012;中国环境科学研究院湖泊环境研究所, 北京 100012;湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012;西安建筑科技大学环境与市政工程学院,西安,710055 |
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| 基金项目： | 中央级公益性科研院所基本科研业务专项（2016YSKY-031） |
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| 摘 要： | 为提高人工湿地收割植物利用率并探讨水体中氨氮对镁改性生物炭(magnesium modified biochar,MBC)除磷效果的影响,本文以人工湿地植物芦苇为原料,引入金属镁离子对其改性,制备MBC,并以未改性生物炭(biochar,BC)为对照,通过批量摇床实验,研究了不同氮磷摩尔比(0、5、10)和初始磷浓度(100～500 mg·L-1)条件下,MBC、BC、BC与金属镁离子(BC+Mg~(2+))、Mg~(2+)这4种处理方式对磷酸盐的去除效果.结果表明,4种处理方式对磷的去除量排序为MBCBC+Mg~(2+)≈Mg~(2+) BC,溶液中NH+4的存在促进MBC吸附除磷,氮磷摩尔比越大,初始磷浓度越高,MBC的磷吸附能力越强. XRD图谱分析结果表明,在MBC、BC+Mg~(2+)、Mg~(2+)这3种处理方式中,当氮磷摩尔比为5、10时,NH+4与溶液中的Mg~(2+)和PO3-4发生沉淀反应,生成鸟粪石(MgNH4PO4·6H2O),促进磷的去除.本研究利用人工湿地废弃生物质对富含氨氮和磷酸盐的溶液进行处理,确定了氨氮对水体中磷酸盐去除的促进作用,达到了回收利用、以废治废的目的,为水体富营养化治理提供了新的理论依据和数据支持.
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| 关 键 词： | 改性 生物炭 吸附 氨氮 磷 |
| 收稿时间： | 2018/7/9 0:00:00 |
| 修稿时间： | 2018/7/31 0:00:00 |
Effect of Nitrogen on Magnesium Modified Biochar Adsorption to Phosphorus |
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| ZHI Meng-meng,WANG Peng-fei,HOU Ze-ying,CAO Jing,CHU Zhao-sheng and YANG Yong-zhe.Effect of Nitrogen on Magnesium Modified Biochar Adsorption to Phosphorus[J].Chinese Journal of Environmental Science,2019,40(2):669-676. |
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| Authors: | ZHI Meng-meng WANG Peng-fei HOU Ze-ying CAO Jing CHU Zhao-sheng and YANG Yong-zhe |
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| Institution: | School of Environmental and Municipal Engineering, Xi''an University of Architecture and Technology, Xi''an 710055, China;Institute of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Beijing 100012, China,Institute of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Beijing 100012, China,Institute of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Beijing 100012, China,Institute of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Beijing 100012, China,Institute of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Beijing 100012, China and School of Environmental and Municipal Engineering, Xi''an University of Architecture and Technology, Xi''an 710055, China |
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| Abstract: | |
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| Keywords: | modification biochar adsorption ammonia nitrogen phosphorus |
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