Vertical sewage treatment equipment and process for mud-water separation by air floatation

A sewage treatment equipment and mud-water separation technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc.

Pending Publication Date: 2021-03-16
NANJING ZHONGWEI NANO FUNCTIONAL MATERIALS RESEARCH INSTITUTE CO LTD +1
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Problems solved by technology

In order to meet the discharge requirements and process requirem

Method used

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  • Vertical sewage treatment equipment and process for mud-water separation by air floatation
  • Vertical sewage treatment equipment and process for mud-water separation by air floatation
  • Vertical sewage treatment equipment and process for mud-water separation by air floatation

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[0024] The present invention will be further described in detail below with reference to the accompanying drawings:

[0025] The present invention provides a vertical sewage treatment apparatus and process using gas float for muddy separation. The apparatus employs a gas instead of conventional gravity precipitation, and the oxygen content in water is high, and the mud water separation is separated by gas floating, and the overall use of stereo design, accounting for Small area; sludge reflux uses gravity flow, low power consumption, and the present invention can remove contaminants in sewage, high standards.

[0026] As an embodiment of the invention, the present invention provides a vertical sewage treatment apparatus using a gas float to perform muddy water, including a box body 2, a microbubble generator 3, a scraper mechanism, an oxygen response region 14, anaerobic reaction zone 16. , The aerobic reaction zone 23 and the air flore region 26 have an oxygen-deficient reaction ...

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Abstract

The invention discloses vertical sewage treatment equipment for mud-water separation by air floatation, an anoxic reaction zone, an anaerobic reaction zone and an aerobic reaction zone are arranged ina box body, a main body of a microbubble generator is arranged on one side of the upper part of the box body, a slag scraping mechanism is arranged above an opening of the box body, a sludge-water separation zone is arranged below the slag scraping mechanism, and a sludge collecting tank is arranged at one end of the sludge-water separation zone. A water outlet pipeline is arranged at the lower part of the sludge-water separation zone, the area below the sludge collection tank is divided into the upper anoxic reaction zone and the lower anaerobic reaction zone, the aerobic reaction zone is arranged below the separation zone, a sludge-water backflow zone is arranged on one side, close to the anaerobic reaction zone, of the aerobic reaction zone, a gas discharge pipe is arranged above the aerobic reaction zone, and a metal wire mesh demister is arranged below the gas discharge pipe. A group of aerators are arranged at the bottom of the aerobic reaction zone, an air floatation zone is arranged on the other side of the aerobic reaction zone, and a dissolved air releaser is arranged in the air floatation zone. Air floatation is adopted to replace conventional gravity precipitation formud-water separation, the oxygen content of effluent is high, the overall three-dimensional design is adopted, the occupied area is small, and the organic matter removal effect is good.

Description

technical field [0001] The invention relates to the field of water treatment technology and devices, in particular to vertical sewage treatment equipment and technology for mud-water separation using air flotation. Background technique [0002] Activated sludge has a history of more than 100 years, and it is still the mainstream treatment process for municipal organic sewage treatment. Nowadays, the emission requirements are getting higher and higher, and the combined process of anoxic-anaerobic-aerobic is generally used to meet the removal requirements of C, N, and P. After the sewage treatment is completed, a secondary settling tank is generally used for mud-water separation. In order to meet the discharge requirements and process requirements, the overall sewage treatment process occupies a large area. With the development of the city, the land becomes more and more precious. In order to meet this new challenge, a new sewage treatment process that occupies a small area ...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/301
Inventor 秦艳涛吴敏郑颖平靳刘伟齐齐
Owner NANJING ZHONGWEI NANO FUNCTIONAL MATERIALS RESEARCH INSTITUTE CO LTD
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