Patent ID: 6838069

Claim:
A method for removing ammonia from a fluid comprising: a. contacting said fluid with a sorbent comprising metal cation loaded media at conditions adapted to load ammonia onto said sorbent and produce an ammonia depleted fluid; b. separating said ammonia depleted fluid from said ammonia loaded sorbent; c. separating said ammonia from said ammonia loaded sorbent by contacting said sorbent with a regenerant stripping solution comprising (1) a non-chelating weak acid having a pK a of about 3 to about 7.5, and which is selected from the group consisting of dimeric, trimeric, oligomeric, and polymeric carboxylates, wherein an ammonium salt solution is formed producing a spent stripping solution and regenerated sorbent; or (2) a strong acid and a metal salt, wherein an ammonium salt solution is formed producing a spent stripping solution and regenerated sorbent; and d. separating said spent stripping solution from said regenerated sorbent.