Enhanced Purification of Eutrophic Water by Microbe-Inoculated Stereo Floating Beds

Abstract

This study was conducted to investigate the feasibility of using floating beds of tall fescue plants (Festuca arundinacea) inoculated with denitrifying polyphosphate accumulating microorganisms (DPAOs). In the presences of DPAOs, tall fescue showed greater removal of NH4 + -N, NO3¯-N, total N (TN), and orthophosphate (ortho-P) after a 20-day treatment. The average removal rates were 86.32%, 93.60%, 90.12%, 72.09%, and 84.29%, respectively, for NH4 + -N, NO3¯-N, TN, total P (TP), and ortho-P. Tall fescue plants grew