Fast breeding device and method of anammox bacteria
An anaerobic ammonium oxidizing bacteria, fast technology, applied in the direction of anaerobic digestion treatment, etc., can solve the problems of slow culture of bacteria, achieve the effect of guaranteeing the effect, increasing the discharge speed, and promoting the effect of the reaction
Active Publication Date: 2012-07-18
DALIAN UNIV OF TECH
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[0026] The device structure of this embodiment is shown in FIG. 1 , and consists of a tower reactor 1 and a sedimentation tank 2 . The tower reactor is equipped with a water inlet pump 3, a stirring device 5, and a temperature control device 6. The water inlet 4 is set at the bottom of the reactor, and the outlet overflow port 7 is set at the upper part; The water guides the sedimentation pipe 14, and the bottom of the sedimentation tank is provided with a backflow port 15 and a sludge discharge port 16. The tower reactor 1 is made of cylindrical U-PVC material with a diameter-to-height ratio of 1:4. The top sealing cover is made of colorless transparent plexiglass, and is connected with the tower reactor 1 through a sealing gasket 10 by stainless steel screws. The stirring device 5 is arranged at the very center of the tower reactor 1, and is fixed on the sealing cover, and a stirring paddle is respectively arranged at the bottom and the middle of the stirring rod. The wate...
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A fast breeding device and method of anammox bacteria belong to the technical field of biological wastewater treatment. The device contains a tower reactor, a settling pond, a mechanical agitation device, a temperature control device and a refluxing system, wherein the tower reactor and the settling pond are both sealed reactors. The temperature control device is used to perform the on-line automatic control of the water temperature of the tower reactor, and the effluent overflow to the settling pond; and the settling pond is provided with a mud scraping device, and the refluxing system is used to reflux the accumulated bacteria in the settling pond to the tower reactor. The method comprises the following steps: the inner temperature of the tower reactor is controlled to 30-35 DEG C, the pH value is controlled to 7.5-8, no dissolved oxygen exists, the agitation device is used to disperse pollutants in water rapidly, and pollutants fully contact with sludge in a disperse fluidization state. In the operating and cultivating process, the highly fluidization state of anammox bacteria is kept and the height of sludge layer in the settling pond is controlled to be less than one third ofa cone. By adopting the device and method, the rapid breeding of anammox bacteria can be realized and the anammox technology can be popularized.
Description
technical field [0001] The invention relates to a device and method for rapid proliferation of anaerobic ammonium oxidizing bacteria, belonging to the technical field of wastewater biological treatment. Background technique [0002] With the rampant eutrophication phenomenon in the world's water environment in recent years, how to effectively remove nitrogen in water has attracted more and more attention from scholars. Compared with physical and chemical methods, biological denitrification technology is mainly used at home and abroad at present, and the widely used nitrification-denitrification two-stage biological denitrification process has two main shortcomings. First, it consumes a lot of energy, and ammonia nitrogen nitrification requires additional energy to supply oxygen; second, the denitrification reaction requires carbon sources as electron donors, but in actual operation, methanol and other organic carbon sources are often required due to insufficient carbon sourc...
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IPC IPC(8): C02F3/28
Inventor 杨凤林安鹏徐晓晨李子音
Owner DALIAN UNIV OF TECH