| 污染河道对沿岸地下水环境影响规律研究 |
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| 引用本文： | 王超,李勇,包振琪.污染河道对沿岸地下水环境影响规律研究[J].水科学进展,2002,13(5):535-541. |
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| 作者姓名： | 王超 李勇 包振琪 |
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| 作者单位： | 河海大学环境科学与工程学院, 江苏, 南京, 210098 |
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| 基金项目： | 国家自然科学基金资助项目(59679024) |
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| 摘 要： | 以江苏奎河为例,观测研究奎河污染物CODCr、NH4+-N、NO3--N、Cl-入渗进入地下水中发生物理、化学及生物变化的时空分布规律,分析河道沿岸土壤对污染物的去除能力.结果表明:河床的土壤对污染物CODCr具有很高的去除率,对NH4+-N亦有较高的去除率.河道中的NO3--N在入渗过程中虽有一定的去除率,但由于NH4+-N、NO2--N等污染因子转化成NO3--N,因此该浓度不一定会明显降低.Cl-是保守性污染因子,入渗过程中虽有一定的去除率,但仍对沿岸地下水环境产生影响.因此,当污染河道中污染因子是保守性物质时,必须考虑对沿岸地下水源地的影响.
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| 关 键 词： | 污染河道 地下水环境 现场观测 去除率 |
| 文章编号： | 1001-6791(2002)05-535-07 |
| 收稿时间： | 2001-08-28 |
| 修稿时间： | 2001年8月28日 |
Study on the influence of polluted river on its offshore groundwater environment |
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| WANG Chao,LI Yong,BAO Zhen-qi.Study on the influence of polluted river on its offshore groundwater environment[J].Advances in Water Science,2002,13(5):535-541. |
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| Authors: | WANG Chao LI Yong BAO Zhen-qi |
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| Institution: | College of Water Resources and Environment, Hohai University, Nanjing 210098, China |
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| Abstract: | It has great academic and practical significance to study the influence of polluted river on its offshore groundwater environment where surface water is seriously polluted.Based on the field observation experiments in Kui River in Jiangsu province,the time-and spatial distribution rule on physical,chemical and biological change of pollutants such as CODCr,NH4+-N,NO3--N, Cl- infiltrating into groundwater is discussed.And the ability of river offshore soil and groundwater to remove pollutants is analyzed.The field data shows that the efficiency of river sediment and its offshore soil to remove CODCr is high, to remove NH4+-N and NO3--N is higher, to decrease the concentration is low due to the transform of NH4+-N and NO2--N into NO3--N, and to remove Cl- is very low due to its conservative character.As a result, the influence of conservative pollutant on river offshore groundwater must be considered. |
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| Keywords: | polluted river groundwater environment on-the-spot observation removal efficiency |
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