C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 9/04 (2006.01) C02F 9/08 (2006.01) B01D 53/58 (2006.01) C02F 1/20 (2006.01) C02F 1/42 (2006.01)
Patent
CA 2618956
In one embodiment, an ammonium removal method can comprise: removing a multivalent cation from a stream comprising ammonium to form a treated stream; converting the ammonium in the stream to ammonia by increasing the pH of the stream; and separating the ammonia from the treated stream to form a separated stream and gaseous ammonia. In another embodiment, an ammonium removal method can comprise: a multivalent cation from a stream comprising ammonium to form a treated stream comprising a total of less than or equal to about 50 ppm by weight of multivalent cations; increasing the pH of the stream to a conversion pH; converting the ammonium to ammonia; and separating the ammonia from the treated stream to form a separated stream and gaseous ammonia.
Dans un mode de réalisation, un procédé d'élimination d'ammonium peut consister: à éliminer un cation polyvalent d'un flux comprenant de l'ammonium, de manière à former un flux traité; à convertir l'ammonium dans le flux en ammoniac par augmentation du pH du flux; et à séparer l'ammoniac du flux traité, de manière à former un flux distinct et un ammoniac gazeux. Dans un autre mode de réalisation, un procédé d'élimination d'ammonium peut consister: à utiliser un cation polyvalent provenant d'un flux comprenant de l'ammonium, afin de former un flux traité comprenant un total égal ou inférieur à environ 50 ppm en poids de cations polyvalents; à augmenter le pH du flux en un pH de conversion; à convertir l'ammonium en ammoniac; et à séparer l'ammoniac du flux traité afin de former un flux distinct et un ammoniac gazeux.
Brown Stephen Howard
Kemp Philip Mason
Simon Mark Matthew
Castion Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
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