To develop new high - type adsorption materials for the purpose of phosphorus removal, take activated carbon, ver- miculite and fly ash for the test object. The results showed that adsorption capacity of the adsorption materials with waste water pH value changes significantly, and the absorption capacity of active carbon and vermiculite reached the peak when the pH was a- round 6, the absorption capacity of fly - ash reached the peak when the pH was around 11. When the dosage changed, the phos- phorus removal rates were not increased with the activated carbon and vermiculite but the fly ash. T...