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Biological nitrogen and phosphorus removal process of sewage and matched device of V-shaped biological aerated filter pool

A biological aerated filter, denitrification and phosphorus removal technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc. There are few problems, such as the influence of biofilm activity, to achieve the effect of good effect, superior effluent quality and long filtration cycle.

Active Publication Date: 2010-06-16
四川蓉信开工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses an improved method called bioremediation that removes harmful substances such as pesticides, fertilizers, dyes, etc., while also improving wastewater purity through filtering processes with specific cycles between them. It achieves this improvement over existing methods without affecting their performance significantly. Overall, it provides technical benefits including efficient pollution reduction, effective cleanup of contaminants, reduced operating costs associated with automating these procedures, simplifying maintenance requirements, reducing environmental impact on landfill sites, and enhancing safety measures during construction projects.

Problems solved by technology

Biologically speaking, the technical problem addressed in this patents relates to finding ways to improve the efficiency and reliability of treatments involving biomass aerators (BAM). Specifically, the challenge presented involves reducing pressure drop overcomes issues such as membrane breakdown and plugging, allowing for efficient cleanings without causing damage to the treated media. Additionally, the issue being solved includes optimizing the ratio of fluid volumes needed for effective treatment despite poor environmental conditions and increased regulations.

Method used

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  • Biological nitrogen and phosphorus removal process of sewage and matched device of V-shaped biological aerated filter pool
  • Biological nitrogen and phosphorus removal process of sewage and matched device of V-shaped biological aerated filter pool
  • Biological nitrogen and phosphorus removal process of sewage and matched device of V-shaped biological aerated filter pool

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Effect test

Embodiment 1V

[0078] Embodiment 1V type biological aerated filter device

[0079] figure 1 It is a schematic diagram of the longitudinal section structure of the V-type biological aerated filter of the present invention. As can be seen from the figure, the upper part of the V-type filter is provided with a water inlet distribution channel 10, and the lower part of the water inlet distribution channel 10 is provided with a water inlet pipe 11. A water inlet gate 12 is provided at the joint between the water distribution channel 10 and the filter tank, and the water intake is controlled by the water inlet gate 12 .

[0080] Such as figure 1 As shown, the lower part of the V-shaped filter is provided with an air-water combined backwashing device, and the air-water combined backwashing device includes a backwashing air-water distribution tank 21, an air-water distribution chamber 22, and a backwashing drainage tank 23; wherein, the air-water The distribution chamber 22 is located below the ...

Embodiment 2

[0083] Example 2 Sewage Treatment Plant Renovation Project of Tahe Branch of China Petroleum & Chemical Corporation

[0084] Project Overview:

[0085] Sinopec Tahe Branch is located in Kuqa County, Xinjiang Uygur Autonomous Region. With the strengthening of national water protection and water conservation law enforcement, and the increase of water price, water conservation and emission reduction has been officially listed as the work of enterprises. schedule. This project is based on the original process, at the end of the construction of a V-type biological aerated filter deep biochemical system, and the final effluent of the sewage treatment plant is raised from the petrochemical industry level 2 of the "Comprehensive Sewage Discharge Standard" (GB8978-96) to the petrochemical industry The first-level indicator is also the basis for later-stage standard-reaching sewage reuse projects. The project was put into operation in 2005.

[0086] The basic situation of the project...

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Abstract

The invention relates to a biological nitrogen and phosphorus removal process of sewage and a matched device of a V-shaped biological aerated filter pool, belonging to the field of sewage treatment. The biological nitrogen and phosphorus removal process of sewage of the V-shaped biological aerated filter pool is characterized in that sewage enters a biological filter medium layer from the upper part of the V-shaped biological aerated filter pool and is subjected to nitratlon reaction and denitrification reaction in the biological filter medium layer, and the sewage is sequentially discharged from the bottom of the biological aerated filter pool through a fine filtering layer, a support layer and a filter head. The biological nitrogen and phosphorus removal process of sewage of the V-shaped biological aerated filter pool gets rid of the main flow type of upward flow light biological aerated filter pool, adopts a downward flow type, and is additionally provided with the fine filtering layer, thereby the quality of yield water is stable and superior, and the invention is suitable for deep sewage treatment and pretreatment of slightly polluted source water.

Description

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Claims

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Application Information

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Owner 四川蓉信开工程设计有限公司
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