Device and method for processing high ammonia-nitrogen wastewater and domestic sewage by combining continuous flow partial nitrification/ anaerobic ammonia oxidation with DEAMOX (DEnitrifying AMmonium OXidation)

Abstract

The invention discloses a device and a method for processing high ammonia-nitrogen wastewater and domestic sewage by combining continuous flow partial nitrification / anaerobic ammonia oxidation with DEAMOX (DEnitrifying AMmonium OXidation), and belongs to the field of sewage and sludge biotreatment. The device comprises a high ammonia-nitrogen wastewater storage tank, an up-flow sludge bed USB (Universal Serial Bus) reactor, a middle water tank, a domestic wastewater storage tank, an SBR (Sequencing Batch Reactor) and a water discharging tank. The method comprises the following steps: high ammonia-nitrogen wastewater enters the up-flow sludge bed USB reactor; ammonia nitrogen is converted into nitrogen and nitrate nitrogen by ammonia oxidizing bacteria and anammox bacteria; effluent and domestic sewage simultaneously enter the SBR; nitrate nitrogen in the effluent and ammonia nitrogen in the domestic wastewater are converted into nitrogen and nitrate nitrogen by denitrifying bacteria and anammox bacteria. According to the device and the method, the problem of excessive effluent nitrate nitrogen when a partial nitrification / anaerobic ammonia oxidation technology is used is effectively solved, and meanwhile, the efficient denitrification of the domestic sewage is realized.

Description

technical field [0001] The invention relates to a device and method for continuous-flow short-path nitrification / anammox combined with DEAMOX to treat high-ammonia nitrogen wastewater and domestic sewage, belongs to the technical field of sewage biological treatment, is suitable for deep denitrification of high-ammonia nitrogen wastewater and domestic sewage, and has the advantages of saving energy and reducing waste water. consumption characteristics. Background technique [0002] Anaerobic ammonium oxidation technology means that anammox bacteria convert ammonia nitrogen and nitrite nitrogen in water into nitrogen and a small amount of nitrate nitrogen. This technology has the advantages of no need for aeration, no need for additional carbon sources, and small sludge production. , is one of the autotrophic biological denitrification technologies with great development potential. In recent years, it has received extensive attention in the industry, and the combined denitrif...

AI Technical Summary

Problems solved by technology

The continuous-flow short-cut nitrification / ANAMMOX process can achieve continuous water inflow and continuous water outflow, which greatly increases the water inflow load compared with the sequencing batch reactor, but this process is generally proposed and applied in the form of a sequencing batch reactor, and The effluent contains some nitrate nitrogen, especially when it is used to treat high ammonia nitrogen wastewater, the nitrate nitrogen in the effluent often cannot meet the standard

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