中文摘要：

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。

英文摘要：

The purification effect and mechanism on polluted water by ecological beds systems of Rumesc acerosa Linn were studied and the experiment went on 48 days. The results indicated：The removal rate for total nitrogen and NH4^＋ -N was 92.40% and 97. 00% ,which are 4.47, 1.10 times greater than no plant systems, and the remove for NH4^＋ --N depend on nitration of nitrifying bacteria ,on the contrary the remove for NH^＋ --N of the no plant systems depend on ammonia volatilization. The NO3^- --N of Rurnex 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.