Abstract:

In this paper, the efficiency of eutrophic water with Vallisneria spinulosa. It was shown that pollutant removals from polluted water using Vallisneria spinulosa such as TN、TP、NH4+-N、COD were 66.64%、90.02%、91.94%、71.17%，the concentration of pH could be reduced from 7.7 to 7.43, the concentration of DO could be raised from 6.956 mg/L to 16.406 mg/L and the transparency reaching 55 cm, demonstrating that Vallisneria spinulosa is one of excellent biomaterials on the eutrophic water.