Method for starting anaerobic ammonium oxidation reactor to treat high-salt nitrogenous wastewater
A technology of anaerobic ammonium oxidation and anammox bacteria, applied in chemical instruments and methods, aerobic and anaerobic process treatment, biological water/sewage treatment, etc., can solve the problem of insufficient ability to adapt to environmental changes and the impact resistance of reactors Weak capacity, long reactor start-up time and other problems, to achieve the effect of simple start-up method, rich microbial species, and increased enrichment speed
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[0021] The present invention takes anaerobic sludge and aerobic sludge as seed sludge, inoculates them into the reactor, utilizes the diversity of the two kinds of sludge microorganisms, and realizes anaerobic ammonium oxidation in the treatment of high-salt wastewater by gradually changing the influent matrix. Startup in the reactor. The start-up strategy is as follows: firstly, the anammox bacteria are enriched under the conditions that the reactor remains anaerobic, the influent does not contain organic carbon sources, and no salinity, and a microbial system with anammox bacteria as the dominant bacteria is established; then Under the conditions of low nitrogen concentration and low salinity, salt-tolerant anammox bacteria are selected, non-dominant strains are washed out, and a microbial system with salt-tolerant anammox bacteria as dominant bacteria is established; finally, nitrogen concentration and Salinity enables anammox bacteria to adapt to high nitrogen concentratio...
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