Device and method for synchronously treating domestic sewage and nitrate wastewater by coupling denitrifying phosphorus removal with short-cut nitrification anaerobic ammonia oxidation

A technology for denitrifying phosphorus removal and nitrifying anaerobic ammonia is applied in the field of simultaneous treatment of domestic sewage and nitrate wastewater, which can solve problems such as difficulty in removing phosphorus, and achieve the effects of less greenhouse gas, low operating energy consumption, and stable system treatment effect.

Active Publication Date: 2021-06-25
BEIJING UNIV OF TECH
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  • Claims
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Problems solved by technology

However, the anaerobic ammonium oxidation process can only remove nitrogen and cannot remove phosphorus

Method used

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  • Device and method for synchronously treating domestic sewage and nitrate wastewater by coupling denitrifying phosphorus removal with short-cut nitrification anaerobic ammonia oxidation
  • Device and method for synchronously treating domestic sewage and nitrate wastewater by coupling denitrifying phosphorus removal with short-cut nitrification anaerobic ammonia oxidation
  • Device and method for synchronously treating domestic sewage and nitrate wastewater by coupling denitrifying phosphorus removal with short-cut nitrification anaerobic ammonia oxidation

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Embodiment approach

[0024] Such as figure 1Shown, a kind of denitrification dephosphorization coupled with short-range nitrification anaerobic synchronous treatment of domestic sewage and nitrate wastewater, the device used consists of urban sewage raw water tank (1), nitrate wastewater tank (2), denitrification dephosphorization reactor ( 3), the first intermediate water tank (4), short-range nitrification A / O synchronous dephosphorization reactor (5), the second intermediate water tank (6), the third intermediate water tank 3 (7), anaerobic ammonia oxidation reactor (8 ), water outlet tank (9); urban sewage is connected with the denitrification dephosphorization reactor (3) from the urban sewage raw water tank (1) through the first water inlet pump (3.1), and the nitrate waste water is fed by the nitrate waste water tank (2) The second water inlet pump (3.2) is connected with the denitrification dephosphorization reactor (3); the effluent of the denitrification dephosphorization reactor (3) is ...

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Abstract

The invention discloses a device and a method for synchronously treating domestic sewage and nitrate wastewater by coupling denitrifying phosphorus removal with short-cut nitrification anaerobic ammonia oxidation. Nitrate wastewater and urban sewage respectively enter a denitrifying phosphorus removal reactor in proportion, organic matters in domestic sewage are fully utilized to store an internal carbon source and release phosphorus in an anaerobic stage, and nitrate is utilized as an electron acceptor in an anoxic stage to complete a phosphorus uptake process; domestic sewage enters a short-cut nitrification A / O phosphorus removal reactor, ammonia nitrogen is oxidized into nitrite, and meanwhile the phosphorus removal process is completed. The effluent of the denitrifying phosphorus removal reactor and the effluent of the short-cut nitrification reactor are mixed according to a proper proportion and then enter the anaerobic ammonia oxidation reactor to complete the final denitrification process. The method can realize synchronous denitrification and phosphorus removal of the domestic sewage and the nitrate wastewater.

Description

technical field [0001] The invention relates to a technique for synchronously treating domestic sewage and nitrate wastewater by using denitrification phosphorus removal coupled with short-range nitrification anaerobic ammonium oxidation, and belongs to the technical field of sewage biological treatment. Specifically, domestic sewage and nitrate wastewater enter the denitrification dephosphorization reactor in proportion. In the anaerobic section, the organic matter in the domestic sewage is fully utilized to store the internal carbon source and release phosphorus. In the anoxic section, nitrate is used as the electron acceptor to complete the absorption. Phosphorus process: Domestic sewage enters the short-range nitrification A / O phosphorus removal reactor to oxidize ammonia nitrogen to nitrite and complete the phosphorus removal process at the same time. The effluent from the denitrification dephosphorization reactor and the effluent from the short-path nitrification A / O dep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/16C02F101/10
CPCC02F3/308C02F3/302C02F3/307C02F2101/163C02F2101/16C02F2101/105Y02W10/10
Inventor 彭永臻韩可心李夕耀
Owner BEIJING UNIV OF TECH
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