| 摘要 |
Phosphorous ions are extracted (210) from solutions by adsorbing phosphor ous ions in a scavenger and by releasing the phosphorous ions into an eluate during regeneration (230) of the scavenger. The regeneration (230) is perfo rmed by ammonia. Phosphate anions are precipitated (262) in form of tri-ammo nium phosphate upon introduction (260) of excess amounts of ammonia. The amm onia remaining in solution after the precipitation of tri- ammonium phosphat e is reused (266) for regenerating the scavenger. |
