A device and method for synchronously treating domestic sewage and nitrate wastewater by utilizing denitrification and phosphorus removal coupled with short-range nitrification and anammox

A technology of denitrification phosphorus removal and nitrification anaerobic ammonia, which is applied in the field of synchronous treatment of domestic sewage and nitrate wastewater, can solve problems such as difficult phosphorus removal, and achieve the effects of less greenhouse gas, low energy consumption and stable system treatment effect

Active Publication Date: 2022-06-07
BEIJING UNIV OF TECH
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  • Description
  • Claims
  • Application Information

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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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  • A device and method for synchronously treating domestic sewage and nitrate wastewater by utilizing denitrification and phosphorus removal coupled with short-range nitrification and anammox
  • A device and method for synchronously treating domestic sewage and nitrate wastewater by utilizing denitrification and phosphorus removal coupled with short-range nitrification and anammox
  • A device and method for synchronously treating domestic sewage and nitrate wastewater by utilizing denitrification and phosphorus removal coupled with short-range nitrification and anammox

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Embodiment approach

[0024] like figure 1As shown in the figure, a denitrification phosphorus removal coupled with short-range nitrification anaerobic synchronous treatment of domestic sewage and nitrate wastewater, the device used is composed of a municipal sewage raw water tank (1), a nitrate wastewater tank (2), a denitrification phosphorus removal reactor ( 3), the first intermediate water tank (4), the short-range nitrification A / O synchronous phosphorus removal reactor (5), the second intermediate water tank (6), the third intermediate water tank (7), the anammox reactor (8) , outlet tank (9); urban sewage is connected with the denitrification and phosphorus removal reactor (3) from the urban sewage raw water tank (1) through the first inlet pump (3.1), and the nitrate wastewater is passed through the nitrate wastewater tank (2) The second inlet water pump (3.2) is connected with the denitrification and phosphorus removal reactor (3); the effluent of the denitrification and phosphorus remova...

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Abstract

The invention discloses a device and a method for synchronously treating domestic sewage and nitrate wastewater by using denitrification and dephosphorization coupled with short-range nitrification and anaerobic ammonium oxidation. Nitrate wastewater and urban sewage enter the denitrification phosphorus removal reactor in proportion. In the anaerobic stage, the organic matter in domestic sewage is fully utilized to store internal carbon sources and release phosphorus. In the anoxic stage, nitrate is used as an electron acceptor to complete the phosphorus absorption process; The sewage enters the short-range nitrification A / O dephosphorization reactor to oxidize ammonia nitrogen to nitrite and complete the dephosphorization process at the same time. The effluent from the denitrification phosphorus removal reactor and the effluent from the short-path nitrification reactor are mixed in an appropriate ratio and then enter the anaerobic ammonium oxidation reactor to complete the final denitrification process. This method can realize the simultaneous denitrification and phosphorus removal of domestic sewage and nitrate wastewater.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(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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