| 底泥就地稳定化中零价铁(Fe0)对有机污染物的作用及其对上覆水体水质的影响 |
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| 引用本文： | 章萍,相明雪,马若男,刘强,葛刚,钱光人. 底泥就地稳定化中零价铁(Fe0)对有机污染物的作用及其对上覆水体水质的影响[J]. 湖泊科学, 2018, 30(5): 1218-1224 |
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| 作者姓名： | 章萍 相明雪 马若男 刘强 葛刚 钱光人 |
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| 作者单位： | 南昌大学资源环境与化学工程学院鄱阳湖环境与资源利用教育部重点实验室;上海大学环境与化学工程学院 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2017ZX07301002-05）和国家自然科学基金项目（21467014，21767018）联合资助. |
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| 摘 要： | 在实验室模拟静态湖泊体系条件下,通过向实际底泥中投加零价铁(Fe~0),考察反应前后底泥中有机物数量、种类、总有机质含量以及上覆水体溶解氧(DO)浓度、氧化还原电位(Eh)、pH和化学需氧量(CODCr)浓度等指标的变化,探讨Fe~0对底泥有机物的降解效果以及对上覆水体水质的影响.结果表明,投加Fe~0处理80 d后,(1)经GC-MS检测出底泥中易被降解的小分子有机物(分子量小于200)数量明显增多,底泥总有机去除率为44%.(2)上覆水体的DO浓度、Eh和pH都有不同程度的变化.DO浓度从6.6 mg/L迅速下降至0.2 mg/L,Eh从150 mV左右下降至74 mV,pH升高至8.4,此体系易形成厌氧环境;且上覆水体中CODCr低于纯底泥-水体系,上覆水中DO浓度、Eh及pH与CODCr浓度具有一定相关性.综上,底泥中投加Fe~0可有效降解有机物,且不会对上覆水体产生持久、较大的影响.
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| 关 键 词： | 就地稳定 零价铁(Fe0) 底泥 有机污染物 上覆水 |
| 收稿时间： | 2017-06-09 |
| 修稿时间： | 2017-09-06 |
Effect of zero-valent iron on organic pollutants in sediment and the related overlying water during in-situ treatment |
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| ZHANG Ping,XIANG Mingxue,MA Ruonan,LIU Qiang,GE Gang and QIAN Guangren. Effect of zero-valent iron on organic pollutants in sediment and the related overlying water during in-situ treatment[J]. Journal of Lake Science, 2018, 30(5): 1218-1224 |
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| Authors: | ZHANG Ping XIANG Mingxue MA Ruonan LIU Qiang GE Gang QIAN Guangren |
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| Affiliation: | Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China,Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China,Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China,Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China,Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China and College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China |
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| Abstract: | |
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| Keywords: | In-situ sediment treatment zero-valent iron (Fe0) sediment organic pollutants overlying water |
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