Method and apparatus for ammonia removal from wastewaters

Details Method and apparatus for ammonia removal from wastewaters Method and apparatus for ammonia removal from wastewaters

C - Chemistry, Metallurgy

02

F

362/66, 202/92

C02F 9/00 (2006.01) C01C 1/10 (2006.01) C02F 1/02 (2006.01) C02F 1/20 (2006.01) C02F 1/58 (2006.01) C02F 1/64 (2006.01)

Patent

CA 1077177

ABSTRACT OF THE DISCLOSURE A method and apparatus for removing ammonia nitrogen from wastewater at any given temperature. The general method includes the concept of increasing the pH of the wastewater to a highly basic condition, exposing the wastewater to a vacuum having an absolute pressure at least approaching the vapor pres- sure of the wastewater proportional to the given temperature whereby ammonia gas is then desorbed from the wastewater, and subsequently absorbing the desorbed ammonia in a body of liquid having a pH substantially less than the highly basic condition of the original wastewater. Reference to the drawing: Fig. 1.

244479

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