Patent ID: 9005333
Filing Date: 2015-04-14
Classification: B01D,C02F,Y02E

Abstract:
1. A system for reducing ammonia concentration in liquid effluents consisting essentially of at least one gas permeable membrane assembly allowing for the diffusion of ammonia gas from said liquid effluent into said membrane assembly, a reservoir containing a stripping solution, and a delivery system for (i) delivering the stripping solution from the reservoir to said membrane assembly to chemically change the ammonia gas to ammonia salts and for (ii) carrying the salts to a second reservoir or to said reservoir containing said stripping solution; said delivery system comprising a pump having an intake end and a discharge end, and at least two hollow tubes, a first tube having one end attached to the discharge end of the pump and a second end attached to a first side of a gas permeable membrane assembly; and a second tube having a first end attached to a second side of said gas permeable membrane and a second end disposed above or in said reservoir for discharging ammonium salts to said reservoir.