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Device and method for treating low-carbon municipal sewage by anaerobic and aerobic alternation realized synchronous short-cut nitrification and denitrification combined with anaerobic ammonium oxidation

A technology for anaerobic ammonium oxidation and urban sewage, applied in aerobic and anaerobic process treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve problems such as lack of carbon separation means, achieve accelerated reaction process, The effect of reducing the volume of the reactor and reducing the energy consumption of aeration

Active Publication Date: 2019-05-07
BEIJING UNIV OF TECH
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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

Method used

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  • Device and method for treating low-carbon municipal sewage by anaerobic and aerobic alternation realized synchronous short-cut nitrification and denitrification combined with anaerobic ammonium oxidation
  • Device and method for treating low-carbon municipal sewage by anaerobic and aerobic alternation realized synchronous short-cut nitrification and denitrification combined with anaerobic ammonium oxidation

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Embodiment Construction

[0036] The patent application is further described in conjunction with accompanying drawings and examples: as figure 1 As shown, the present invention includes a raw water tank, an intermediate tank, a sequencing batch SBR reactor, and an anaerobic ammonium oxidation UASB reactor. The effective volumes of the devices are 30L, 30L, 10L, and 3.5L respectively. The sequencing batch SBR reactor and anaerobic ammonium oxidation UASB reactor are made of organic glass; the intermediate water tank and raw water tank are made of organic plastic.

[0037] The device used is composed of urban sewage raw water tank (1), sequencing batch SBR reactor (2), intermediate water tank (4), anaerobic ammonium oxidation UASB reactor (5) connected in series, and its water intake, aeration, stirring, Processes such as water discharge are completed by the online monitoring and feedback control system (3).

[0038] The urban sewage raw water tank (1) is equipped with a raw water tank overflow pipe (1....

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Abstract

A device and method for treating low-carbon municipal sewage by anaerobic and aerobic alternation realized synchronous short-cut nitrification and denitrification combined with anaerobic ammonium oxidation belongs to the field of biological treatment of sewage. The device includes a raw water tank, an intermediate water tank, a sequencing batch reactor (SBR), an up-flow anaerobic sludge bed reactor, an air compressor, a peristaltic pump and the like. The method comprises the following steps: adding domestic sewage into the first sequencing batch reactor, and realizing synchronous short-cut nitrification and denitrification in an anoxic / aerobic / anoxic operation mode to remove all degradable COD and a part of total inorganic nitrogen; and allowing water discharged from the SBR to go throughthe intermediate water tank and enter the up-flow anaerobic sludge bed reactor, and carrying out an anaerobic ammonium oxidation reaction to remove ammonia nitrogen and nitrous acid in the dischargedwater in order to finally realize the deep nitrogen and phosphorus removal of the domestic sewage. The device and the method are suitable for low-C / N municipal domestic sewage, and can reduce the aeration amount, reduce the energy consumption, provide an effective way for carbon separation, slow down the consumption speed of organic matters, improve the nitrogen and phosphorus removal efficiency and realize the reduction of excess sludge.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F9/14
Inventor 彭永臻张文王思萌李夕瑶
Owner BEIJING UNIV OF TECH
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