| 改性膨润土对杭州西湖沉积物各形态磷的吸附性能 |
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| 引用本文： | 刘子森,张义,贺锋,刘碧云,周巧红,蔺庆伟,曾磊,吴振斌.改性膨润土对杭州西湖沉积物各形态磷的吸附性能[J].环境科学学报,2018,38(6):2445-2453. |
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| 作者姓名： | 刘子森 张义 贺锋 刘碧云 周巧红 蔺庆伟 曾磊 吴振斌 |
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| 作者单位： | 中国科学院水生生物研究所淡水生态和生物技术国家重点实验室;中国科学院大学 |
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| 基金项目： | 国家自然科学基金（No.51709254）；中国科学院知识创新工程青年人才领域前沿项目 |
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| 摘 要： | 通过盐酸、碳酸钠、高温焙烧及复合改性等多种改性方法对膨润土进行改性,并借助扫描电子显微镜、傅里叶红外光谱仪及X射线衍射仪等仪器对其进行表征,探讨最佳的改性方法.结果表明,10%碳酸钠+450℃高温焙烧复合改性膨润土(Modified bentonite,MB)为最佳改性用土.对比改性前后膨润土颗粒对沉积物各形态磷吸附性能,发现MB颗粒对沉积物磷吸附性能优于膨润土原土(raw bentonite,RB)颗粒.在最佳动态吸附条件下,RB对沉积物TP、OP、IP、Fe/Al-P和Ca-P的吸附率分别为32.5%、25.4%、52.6%、34.6%和12.4%;MB对沉积物TP、OP、IP、Fe/Al-P和Ca-P的吸附率分别为35.5%、29.1%、54.5%、44.6%和10.7%.静态吸附实验结果表明:RB颗粒和MB颗粒在静态吸附时间为28 d时,对沉积物TP的吸附量分别为828.2 mg·kg~(-1)和977.2 mg·kg~(-1),相应的吸附率分别为58.2%和68.6%.MB对沉积物磷的吸附性能较好,可进一步用于富营养化湖泊沉积物磷控制.
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| 关 键 词： | 改性膨润土 吸附 沉积物各形态磷 富营养化 杭州西湖 |
| 收稿时间： | 2017/11/9 0:00:00 |
| 修稿时间： | 2017/12/28 0:00:00 |
Adsorption performance of modified bentonite on sediment phosphorus in all fractions in West Lake, Hangzhou, China |
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| LIU Zisen,ZHANG Yi,HE Feng,LIU Biyun,ZHOU Qiaohong,LIN Qingwei,ZENG Lei and WU Zhenbin.Adsorption performance of modified bentonite on sediment phosphorus in all fractions in West Lake, Hangzhou, China[J].Acta Scientiae Circumstantiae,2018,38(6):2445-2453. |
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| Authors: | LIU Zisen ZHANG Yi HE Feng LIU Biyun ZHOU Qiaohong LIN Qingwei ZENG Lei and WU Zhenbin |
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| Institution: | 1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072;2. University of Chinese Academy of Sciences, Beijing 100049,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072,1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072;2. University of Chinese Academy of Sciences, Beijing 100049,1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072;2. University of Chinese Academy of Sciences, Beijing 100049 and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072 |
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| Abstract: | |
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| Keywords: | modified bentonite (MB) adsorption sediment P in all fractions eutrophication West Lake Hangzhou |
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