Device and method for synchronous short-cut nitrification and denitrification combined with anaerobic ammonium oxidation to treat low-carbon urban sewage by alternation of aerobic deficiency

Abstract

The invention relates to a device and method for realizing synchronous short-range nitrification and denitrification combined with anaerobic ammonium oxidation to treat low-carbon urban sewage by alternation of aerobic deficiency, which belongs to the field of sewage biological treatment. The device includes a raw water tank, an intermediate water tank, a sequencing batch SBR reactor, an upflow anaerobic sludge bed reactor, an air compressor, a peristaltic pump, etc. The method is to add domestic sewage into the first sequence batch reactor, realize synchronous short-range nitrification and denitrification under the anoxic / aerobic / anoxic operation mode, and remove all degradable COD and part of total inorganic nitrogen; its drainage enters through the intermediate water tank In the upflow anaerobic sludge bed reactor, the ammonia nitrogen and nitrous oxide in the wastewater are removed through anaerobic ammonium oxidation reaction, and finally the deep nitrogen and phosphorus removal of domestic sewage is realized. The invention is suitable for low C / N urban domestic sewage, can reduce aeration, reduce energy consumption, provide an effective means of carbon separation, slow down the consumption speed of organic matter, improve the efficiency of nitrogen and phosphorus removal, and realize the reduction of excess sludge at the same time change.

Description

technical field [0001] The invention relates to an optimization control technology for realizing synchronous short-range nitrification and denitrification combined with anaerobic ammonium oxidation to treat low-carbon urban sewage by using alternate aerobic deficiency, and belongs to the field of biological treatment of urban domestic sewage. This process is suitable for the deep nitrogen and phosphorus removal of low C / N urban domestic sewage. Background technique [0002] With the continuous growth of population and the continuous improvement of people's living standards, the per capita discharge of domestic sewage continues to increase, coupled with the widespread use of detergents, the nitrogen and phosphorus content in urban sewage is relatively high, and after being discharged into water bodies, the nitrogen and phosphorus in receiving water bodies An increase in the content will lead to eutrophication of the water body, damage the water body environment, and affect th...

AI Technical Summary

Problems solved by technology

The two biggest bottlenecks encountered by the current anaerobic ammonium oxidation technology, one is NO 2 - - a stable source of N; the second is the lack of means of carbon separation before entering the anammox reactor

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