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an air flotation device

An air flotation and dissolved air technology, which is applied in water/sewage multi-stage treatment, energy wastewater treatment, water/sludge/sewage treatment, etc., to ensure water quality, large contact area, and photocatalytic effect.

Active Publication Date: 2018-02-16
WUXI GONGYUAN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For water bodies with low COD requirements, such as reclaimed water reuse, landscape water purification or advanced sewage treatment, traditional air flotation can no longer meet the demand

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] like Figure 1 to Figure 3 As shown, it includes a pool body 1 and a dissolved gas system, the pool body 1 is divided into a contact mixing zone 3 and a separation zone 4 by a partition 2, and a reaction zone 8 can also be set on one side of the contact mixing zone 3, and the dissolved gas system includes a dissolved gas system. The gas tank 6 and the high-pressure pump, the dissolved gas and water output pipe 7 of the dissolved gas tank 6 are connected to the contact mixing zone 3, the reaction zone 8 is provided with a stirrer 9, and the separation zone 4 is provided with a slag scraper 10 and cooperates with the slag scraper. The slag tank 5, the bottom of the separation zone is provided with a water collecting pipe 15, the water collecting pipe 15 communicates with the outside of the pool body 1 and is connected to a water pump, and the separation zone 4 is located in an area not higher than the partition plate 2. The photocatalytic reaction zone 11 is provided with...

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PUM

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Abstract

The invention provides an air flotation device, which can further remove COD in sewage and ensure water quality. It includes a tank body and a dissolved air system. The tank body is divided into a contact mixing area and a separation area by a partition. The dissolved air water output pipe of the dissolved air system is connected to the contact mixing area. The slag tank matched with the device is characterized in that: the separation area is located under the partition and a photocatalytic reaction zone is provided. The photocatalytic composite filler and ultraviolet lamp are arranged in the photocatalytic reaction zone. The photocatalytic composite filler includes a central rope and a surface coated with For the polypropylene fiber of the photocatalyst, the two ends of the central rope are respectively fixed on the partition and the side wall of the pool body, and polypropylene fibers are arranged at intervals along the length direction, and the end or middle part of the polypropylene fiber is wound on the central rope.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to an air flotation device. Background technique [0002] Air flotation is a kind of equipment widely used in industrial wastewater and urban sewage treatment, which plays the role of solid-liquid separation and oil-water separation. Its working principle is: form highly dispersed tiny bubbles in water, adhere to the hydrophobic solid or liquid particles in industrial wastewater and urban sewage, after the particles adhere to the bubbles, form flocs with an apparent density less than water and float to the water surface, forming The scum layer is scraped off to realize the process of solid-liquid or oil-water separation. However, after the sewage passes through the conventional air flotation equipment, a large amount of COD remains in the water body. For water bodies with low COD requirements, such as reclaimed water reuse, landscape water purification or advanced sewage treatment, tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08
CPCY02W10/37
Inventor 孙连军孙涛黄俊波
Owner WUXI GONGYUAN MACHINERY