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Efficient carbon adsorption/biological nitrogen and phosphorus removal coupled device and method for sewage treatment

A technology of sewage treatment device and sewage treatment method, which is applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., and can solve the problems of low organic matter removal efficiency and no consideration of phosphorus removal, etc. , to achieve the effect of improving system treatment efficiency, simple regulation, and reducing aeration energy consumption

Pending Publication Date: 2022-02-01
BEIJING DRAINAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its organic matter removal efficiency is low, and the effluent also contains more COD, and phosphorus removal is not considered

Method used

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  • Efficient carbon adsorption/biological nitrogen and phosphorus removal coupled device and method for sewage treatment
  • Efficient carbon adsorption/biological nitrogen and phosphorus removal coupled device and method for sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Such as figure 1 As shown, this embodiment provides a sewage treatment device with high-efficiency carbon adsorption coupled with biological nitrogen and phosphorus removal, including:

[0096] Biological carbon adsorption and phosphorus removal system. The biological carbon adsorption and phosphorus removal system includes anaerobic adsorption tank 1, first sedimentation tank 2, aerobic tank 3, and second sedimentation tank 4 connected in sequence. The bottom of second sedimentation tank 4 passes through The first sludge return pipeline 4.1 is connected to the front end of the anaerobic adsorption tank 1;

[0097] Anaerobic ammonium oxidation system, anaerobic ammonium oxidation system includes an integrated anammox tank 5 and a third sedimentation tank 6 connected in sequence, and the bottom of the third sedimentation tank 6 is connected to the integrated tank through a second sludge return pipeline 6.1 The front end of the anammox tank 5;

[0098] The second sedime...

Embodiment 2

[0119] This embodiment provides a sewage treatment method of high-efficiency carbon adsorption coupled with biological denitrification and phosphorus removal, using the above-mentioned high-efficiency carbon adsorption coupled with biological denitrification and phosphorus removal sewage treatment device, the method includes:

[0120] The activated sludge was inoculated into the anaerobic adsorption tank 1 and the aerobic tank 3 of the biological carbon adsorption and phosphorus removal system, and the short-range nitrification sludge and long-term nitrification sludge were inoculated into the integrated anammox tank 5 of the anammox system. Immobilized filler for anammox bacteria;

[0121] The sewage treated by the grit chamber passes through the anaerobic adsorption tank 1, the first sedimentation tank 2, the aerobic tank 3, the second sedimentation tank 4, the integrated anaerobic ammonia oxidation tank 5, and the third sedimentation tank 6;

[0122] Return the sludge at th...

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Abstract

The invention provides an efficient carbon adsorption / biological nitrogen and phosphorus removal coupled device and method for sewage treatment. According to the invention, a biological carbon adsorption and phosphorus removal system comprises an anaerobic adsorption tank, a first sedimentation tank, an aerobic tank and a second sedimentation tank which are sequentially connected with each other, wherein the bottom of the second sedimentation tank is connected to the front end of the anaerobic adsorption tank through a first sludge return pipeline; an anaerobic ammonia oxidation system comprises an integrated anaerobic ammonia oxidation tank and a third sedimentation tank which are connected in sequence, wherein the bottom of the third sedimentation tank is connected to the front end of the integrated anaerobic ammonia oxidation tank through a second sludge return pipeline; the second sedimentation tank is connected with the integrated anaerobic ammonia oxidation tank, so the biological carbon adsorption and phosphorus removal system is coupled with the anaerobic ammonia oxidation system. Sludge backflow and sludge discharge processes are independently carried out through double sludge systems, so aeration energy consumption is saved, additional nitrogen and phosphorus removal agents do not need to be added, the nitrogen removal efficiency of the systems is improved, carbon emission is reduced, and compared with a traditional activated sludge method, sewage treatment cost can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of urban sewage treatment, and more specifically relates to a sewage treatment device and method for high-efficiency carbon adsorption coupling biological nitrogen and phosphorus removal. Background technique [0002] The traditional activated sludge process uses nitrification and denitrification to remove nitrogen. This method has disadvantages such as low denitrification efficiency, high operating costs, large residual sludge output, and high greenhouse gas emissions, which restrict the quality improvement of sewage treatment plants. synergy. In recent years, the anaerobic ammonium oxidation denitrification process has attracted widespread attention in the water treatment industry due to the fact that the reaction process does not need to consume carbon sources and has high denitrification efficiency. Compared with the traditional activated sludge method, the urban sewage treatment process based on anaero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/30
CPCC02F9/00C02F2101/30C02F2101/16C02F2001/007C02F3/307C02F2303/14C02F3/308C02F2209/08C02F2209/18C02F3/02
Inventor 张树军李琨谷鹏超李权王聪田夏迪吕心涛王志彬曲之明于丽昕孙冀垆
Owner BEIJING DRAINAGE GRP CO LTD
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