轮叶黑藻去除水体中氮磷能力研究

The Removal Ability Research of Hydrilla Verticillata on Nitrogen and Phosphorus from Water

通过比较在不同梯度营养盐浓度下,沉水植物轮叶黑藻对水体中氮、磷的去除能力,研究得出:在不同营养条件下,轮叶黑藻对水体中总磷(TP)均有较好的去除效果,总氮(TN)处理浓度较高(15 mg/L)时,轮叶黑藻对水体中的TN也有较好的去除效果;在一定的浓度范围内,轮叶黑藻的净化效果随水体中氮、磷等物质含量增加而增大,轮叶黑藻是一种很好的水体净化植物,在一些富营养化的水体中可以适当配置轮叶黑藻进行生态修复。

The removal ability of Hydrilia vertlcillata on nitrogen and phosphorus from water was investigated under different nitrogen and phosphorus nutrition conditions. The removal ability of the total phosphorus （TP） was higher under all experiment phosphorus concentration gradient and the higher nitrogen nutrition density （ 15 rag/L） gave a significantly removal capacity. Moreover, the higher the concentration of nitrogen and phosphorus was, the better the elimination ability was. Thus, Hydrilla verticillata is so a good purifying plant that can be used to ecological restoration in some eutrophic water with other plants together.