| 酸模浮床对污染水体净化效果及机理分析 |
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| 引用本文： | 周晓红,王国祥,杨飞,何伟.酸模浮床对污染水体净化效果及机理分析[J].水土保持学报,2008,22(5). |
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| 作者姓名： | 周晓红 王国祥 杨飞 何伟 |
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| 作者单位： | 南京师范大学,地理科学学院,江苏省环境演变及生态建设重点实验室,江苏,南京,210046 |
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| 基金项目： | 教育部科技创新工程重大项目，江苏省重点科技基金 |
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| 摘 要： | 以南京地区河道岸坡常见陆生植物酸模为试材,制成生态浮床,研究酸模浮床以及无植物浮床对污染水体氮磷的净化效果及其机理。结果表明:酸模对TN,NH4 -N去除率达92.40%,97.00%,为对照组去除率的4.47倍、1.10倍,其中酸模对NH4 -N的去除主要依靠水体微生物硝化反应,而对照组NH4 -N去除率较高的主要原因主要是氨的挥发引起;酸模组水体中NO3--N浓度出现先增高后降低的趋势,对照组则无显著变化;酸模对水体TP,COD去除效果明显,酸模组TP,COD浓度分别比初始降低了79.17%,86.63%,与对照组差异显著。结果表明,酸模对污染水体中氮磷具有良好的净化效果,可作为水体生态修复的优良物种而使用。
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| 关 键 词： | 酸模 污染水体 氮磷 净化 浮床 |
Purification Effect and Mechanism on Polluted Water by Ecological Beds Systems of Rumex acetosa Linn |
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| ZHOU Xiao-hong,WANG Guo-xiangYANG Fei,HE Wei.Purification Effect and Mechanism on Polluted Water by Ecological Beds Systems of Rumex acetosa Linn[J].Journal of Soil and Water Conservation,2008,22(5). |
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| Authors: | ZHOU Xiao-hong WANG Guo-xiangYANG Fei HE Wei |
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| Abstract: | The purification effect and mechanism on polluted water by ecological beds systems of Rumex acetosa Linn were studied and the experiment went on 48 days.The results indicated:The removal rate for total nitrogen and NH 4-N was 92.40% and 97.00%,which are 4.47,1.10 times greater than no plant systems,and the remove for NH 4-N depend on nitration of nitrifying bacteria,on the contrary the remove for NH 4-N of the no plant systems depend on ammonia volatilization.The NO-3-N of Rumex acetosa Linn systems is from high to low,however,the no plant systems is no obvious changes.The remove effect for total phosphorus and COD is 79.17%,86.63% in the end experiment,which had a significantly different with no plant systems.The experimental result demonstrates that the Rumex acetosa Linn is recommended as one species of aquatic vegetation in phytoremediation for polluted water. |
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| Keywords: | Rumex acetosa Linn polluted water nitrogen phosphorus purification ecological beds |
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