Hypoxic/anaerobic UASB-SBR landfill leachate shortcut biological denitrification method and apparatus
A technology for landfill leachate and biological denitrification, which is applied in the field of anoxic/anaerobic UASB-SBR landfill leachate short-range biological denitrification and devices, and can solve the problems of difficult biological treatment of high-ammonia-nitrogen landfill leachate.
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[0035] see figure 1 , the concrete flow process that the present invention carries out landfill leachate treatment is:
[0036] The leachate is transferred from the integrated water tank A through the anoxic / anaerobic UASB leachate inlet pump 4 and the returning SBR nitrification liquid supernatant (return volume ratio 3:1) through the anoxic / anaerobic UASB nitrification liquid inlet pump 7 Pumped into the anoxic / anaerobic UASB reactor B, the denitrifying bacteria and anaerobic methanogens in the reactor make full use of the rich organic matter in the influent to perform anoxic denitrification and anaerobic methanogenesis, so that the organic matter is fully absorbed degradation. The effluent from the anoxic / anaerobic UASB reactor B- flows to the intermediate water tank 18 by gravity. The water in the intermediate water tank 18 enters the SBR reactor C with the help of the SBR inlet pump 21. Firstly, through the aerobic respiration of heterotrophic bacteria and nitrifying ba...
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