| 摘要 |
A process for removing ammonia and phosphorus from a wastewater is disclosed. Wastewater is directed, preferably through fixed points (12), through a plurality of discrete beds (14) which rotate about a circular path in periodic fluid communication with the fixed points. The discrete beds include a first resin capable of adsorbing ammonium ions and a second strong base anion exchange resin capable of adsorbing phosphate anions, the first and second resins being arranged in a stacked relationship. Ammonia is then loaded onto the first resin and phosphate loaded onto the second resin. The wastewater has a pH low enough such that the ammonia is present in the wastewater as ammonium ions. A regenerant is directed, preferably through fixed points, into the discrete beds containing the resins so as to desorb ammonium ions and phosphate anions from the resin. The regenerant advantageously is directed serially and upwardly through the discrete beds. |
