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Sewage de-nitrification phosphorus and nitrogen removal device and method

A technology for denitrification and phosphorus removal, nitrogen and phosphorus removal, which is applied in the field of sewage denitrification and phosphorus removal, nitrogen and phosphorus removal devices

Pending Publication Date: 2020-08-18
SHANGHAI INST FOR DESIGN & RES ON ENVIRONMENTAL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a sewage denitrification, phosphorus, nitrogen, and phosphorus removal device and method, and to solve the problem that the previous systems cannot meet the treatment requirements of low-carbon source sewage

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  • Sewage de-nitrification phosphorus and nitrogen removal device and method

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Embodiment 1

[0035] Such as figure 1 As shown, a sewage denitrification, phosphorus, nitrogen, and phosphorus removal device includes a reactor, and a reaction chamber 1 is formed in the reactor. .

[0036] An aeration device 2 is arranged in the reaction chamber 1, and the aeration device 2 supplies oxygen to the sewage in the reaction chamber 1 during the aerobic treatment process of the sewage.

[0037] The dosing device 3 is suitable for adding acid and alkali to the reaction chamber 1 to adjust the pH of the sewage; the dosing device 3 includes a dosing pump, a medicine box and a dosing pipe. The drug pump is input into the reaction chamber 1 .

[0038] The reaction chamber 1 is provided with a polyethylene filler 4 on which a biofilm grows.

[0039] The side wall of the reaction chamber 1 is provided with a heating coil 5, and the heating coil 5 is fed with hot water to heat the sewage in the reaction chamber 1.

[0040] Specifically, in this embodiment, a temperature detector 61...

Embodiment 2

[0051] A sewage denitrification dephosphorization denitrification and dephosphorization method, using the denitrification denitrification dephosphorization denitrification and dephosphorization device of embodiment 1, comprising the following steps:

[0052] The low-carbon source sewage enters the reaction chamber 1, and the sewage is discharged from the water outlet after undergoing anaerobic process treatment, aerobic process treatment, and anoxic process treatment in the reaction chamber 1 in sequence.

[0053] Anaerobic process, aerobic process, and anoxic process are all existing mature processes, and the specific process parameters will not be described in detail.

[0054] In the anaerobic stage, the organic matter of low-carbon source sewage produces volatile fatty acids through microbial fermentation, and the phosphorus accumulating bacteria convert the polyphosphorus stored in their cells into inorganic phosphorus and release it into the water to reduce the COD of sewa...

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Abstract

The invention relates to a sewage de-nitrification phosphorus and nitrogen removal device, which comprises a reaction cavity, an aeration device, a dosing device, a polyethylene filler and a heating coil. A sewage de-nitrification phosphorus and nitrogen removal method adopts device mentioned above, and comprises the following steps: introducing low-carbon-source sewage into a reaction cavity, sequentially subjecting the sewage to an anaerobic process treatment, an aerobic process treatment and an anoxic process treatment in the reaction cavity, and then discharging the sewage from a water outlet. Low-carbon-source sewage enters the reaction cavity, the anaerobic, aerobic and anoxic operation modes are carried out in sequence, and the nitrogen and phosphorus removal effect is achieved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a sewage denitrification denitrification and dephosphorization device and method. Background technique [0002] The process of denitrification and phosphorus removal requires carbon source to provide electron acceptor. The traditional denitrification and phosphorus removal process in the treatment of low-carbon source sewage has contradictions between denitrifying bacteria and phosphorus-removing bacteria competing for carbon sources, often resulting in poor nitrogen and phosphorus removal effects, which in turn leads to increasingly prominent eutrophication problems. [0003] The denitrification and phosphorus removal process is adopted, and the denitrification and phosphorus removal bacteria are used to absorb phosphorus with nitrate as the electron acceptor under anoxic conditions, which can simultaneously achieve nitrogen and phosphorus removal, and has the advantages ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/10C02F101/16C02F101/30
CPCC02F3/308C02F3/302C02F2101/16C02F2101/30C02F2101/105C02F2209/005C02F2209/02C02F2209/06C02F2209/22C02F2301/10
Inventor 李平魏海波程金苹张帆吴永
Owner SHANGHAI INST FOR DESIGN & RES ON ENVIRONMENTAL ENG