Pressure air-dissolving air-float system

A dissolved air flotation and pressure technology, used in flotation water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of excessive volume, large floor space, reduction of dissolved air time and pressure dissolved air tank volume and other issues, to achieve the effect of increasing treatment capacity, reasonable structure and layout, and shortening sewage treatment time

Active Publication Date: 2007-02-07
LIAONING HUAFU ENVIRONMENTAL ENG
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Problems solved by technology

[0010] The purpose of the present invention is to provide a pressure dissolved air flotation system, which can solve the problems caused by the pressure dissolved air device in the existing pressure dissolved air flotation system, and can reduce the time of dissolved air and The volume of the pressure

Method used

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Embodiment Construction

[0038] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] The symbols used for the components of the pressure dissolved air flotation system in the present invention and the components in the existing system, so the structure, function and principle of the components with the same symbols will not be further explained.

[0040] like figure 1 As shown, the pressure dissolved air flotation system in the present invention includes a dosing device (not shown in the figure), a tubular mixing reactor 1 , an air flotation device 2 and a pressure dissolved air device 3 .

[0041] The dosing device is existing equipment, so it is not described in detail.

[0042] The working principle of tubular mixing reactor 1 is the combination of pipeline mixing and reaction, such as figure 2As shown, different chemicals are added through the drug dosing device at different stages, and the different ...

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Abstract

The invention discloses a pressure dissolved air flotation system, which includes an interconnected processing facility, a mixed reactor, a flotation device and a pressure dissolved air device. The process comprises adding wastewater in the mixed reactor and forming separable flocculation with the pharmaceutical added by dosing device, placing the wastewater treated by the mixed reactor in the flotation device and mixing it with dissolved air solution provided by the two dissolved air system pressure devices to make the bubble released from dissolved air solution adhere on the flocculation, and separating and discharging through the deslagging mouth of the flotation device. Through the pressure of dissolved air flotation device and the flotation device improved, it will reduce the volume of pressure dissolved gas cylinder, shorten the time required for dissolving air, prevent the plugging, and has compact structure and reasonable process.

Description

technical field [0001] The invention relates to a dissolved air flotation system, in particular to a pressure dissolved air flotation system using an integrated pressure dissolved air flotation device and an empty tank type dissolved air tank. Background technique [0002] At present, a large amount of sewage is produced in the production process of various industries. In order to make the sewage harmless, various processes are selected in the treatment process. Among them, the pressure dissolved air flotation system has a wide range of oil and suspended matter removal. However, most of the pressure dissolved air flotation systems in my country use huge reinforced concrete tanks (referred to as air flotation devices in the present invention), which occupy a large area, have a long construction period, and are inconvenient for operation and management. [0003] The working principle of the existing pressure-dissolved air flotation system is to use the characteristics of differ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/24
Inventor 吴玉祥迟耀华
Owner LIAONING HUAFU ENVIRONMENTAL ENG
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