2.5. The relationship between plants, microorganisms and soil adsorption in phosphorus removal
The effects of plants, microorganisms and soil adsorption in phosphorus removal were studied by setting up the following experiments: soil + domestic wastewater, plant + soil + domestic wastewater, sterile soil + domestic wastewater, and domestic wastewater alone. The wastewater samples were collected on day 0, 1, 3, and 5 of the experiment and the remaining phosphorus in the solution was analyzed. The percent of phosphorus removal by plants, microorganisms, and soil adsorption in the systems were determined and calculated according to Torit et al.