A sewage treatment device integrating coagulation and air flotation

A sewage treatment device and air flotation integration technology, which is applied in the direction of flotation water/sewage treatment, flocculation/sedimentation water/sewage treatment, water/sewage multi-stage treatment, etc., can solve uneven distribution, affect air flotation efficiency, Large footprint and other issues, to achieve the effect of improving air flotation efficiency, high air flotation efficiency, and small footprint
CN101708910BInactive Publication Date: 2011-12-07WENZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WENZHOU UNIVERSITY
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a sewage treatment device integrating coagulation and air flotation. The device comprises four parts: a pipe mixer, an air dissolving device, an enlarged section retention coagulation area and a reduced section air flotation area. After passing through the device, the sewage directly enters the sedimentation tank to achieve the purpose of solid-liquid separation. The invention has the characteristics of simple equipment, small floor area, low energy consumption, easy control, high air flotation efficiency, etc., and is especially suitable for sewage treatment with small flow.
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Description

technical field

[0001] The invention relates to a sewage treatment device, in particular to a sewage treatment device integrating coagulation and air flotation. Background technique

[0002] The air flotation method is one of the new international water treatment methods at present. It can be used in sewage treatment occasions where the sedimentation method is not applicable to separate suspended solids with a specific gravity close to water and difficult to settle, such as oil, fiber, algae, etc. It can also be used To concentrate activated sludge. Its working principle is to dissolve a large amount of air in water under pressure to form dissolved air water. As a working medium, the dissolved air releaser is suddenly decompressed and released quickly to generate a large number of microbubbles. The micro-bubbles adhere to the condensate in the coagulation reaction sewage, so that the specific gravity of the floc is lower than that of water and floats on the water surface, s...

Claims

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