The invention provides an integrated bacterium breeding device capable of replacing
carbon source feeding, and relates to the technical field of
sewage treatment. The bacterium breeding device comprises an aerobic zone, an aerobic
precipitation and an aerobic gas stripping which are matched with the aerobic zone, a low-
oxygen zone, a low-
oxygen precipitation and a low-
oxygen gas stripping which are matched with the low-oxygen zone, and an anaerobic zone, an anaerobic
precipitation and an anaerobic gas stripping which are matched with the anaerobic zone. The bacterium breeding device is constructed by adopting an integrated structure,
water flow power is provided through aerobic gas stripping, low-
oxygen gas stripping and anaerobic gas stripping, self-hydraulic circulating flow of each region is realized firstly, and then integral
water flow flowing is realized by matching with liquid level difference of each region. According to the bacterium breeding device, dominant
carbonization microorganism bacteria are cultured in the aerobic zone, short-
cut nitrification dominant
bacteria are cultured in the low-oxygen zone, anaerobic
ammonia oxidation dominant
bacteria are cultured in the anaerobic zone, and the different dominant bacteria can be provided for an existing
sewage treatment
plant to be used, so that the working efficiency of corresponding links of
sewage treatment is enhanced; and an existing
sewage treatment plant is helped to maintain green and carbon-reducing operation in a more economical manner.