C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/30 (2006.01) C12S 99/00 (2010.01) C02F 3/12 (2006.01) C02F 3/34 (2006.01)
Patent
CA 2181481
In a method of biologically removing nitrogen and a system therefor according to the present invention, by utilizing the characteristics of AH bacteria as being nitrifying bacteria of nitrous acid type for displaying high activity at the high concentration of ammonium nitrogen and the characteristics of AL bacteria as being nitrifying bacteria of nitrous acid type for displaying high activity at the low concentration of the ammonium nitrogen, in the nitrifying process, operations capable of obtaining the maximum nitrifying speed in accordance with the concentration of the ammonium nitrogen can be performed, and the nitrifying reaction of nitrous acid type for producing nitrous acid as being an intermediate oxide material of the ammonium nitrogen can be performed.
Emori Hiroyoshi
Hashimoto Nobuko
Kasai Masataka
Nakamura Hiroki
Noto Kazuhiko
Hitachi Plant Engineering & Construction Co. Ltd.
Hitachi Plant Technologies Ltd.
Robic
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