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Rapid and high-efficiency oil removal air-floating filter tank

A technology of air flotation filter and flotation filter, which is applied in the direction of filtration treatment, flotation water/sewage treatment, grease/oily substance/suspton removal device, etc. It can solve the problem of incomplete backwashing of air flotation filter Unstable operation of the filter tank, failure to recycle and other problems, to achieve the effect of ensuring the quality and quantity of effluent water, good effluent water quality, and low construction investment

Pending Publication Date: 2018-12-14
北京翰祺环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) When the water quality fluctuates, the operation of the air flotation filter will be unstable;
[0006] (2) When adding coagulants or flocculants, some recoverable oil slicks cannot be recycled;
[0007] (3) The backwashing of the air flotation filter is not thorough, and the filter material is easy to harden

Method used

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  • Rapid and high-efficiency oil removal air-floating filter tank
  • Rapid and high-efficiency oil removal air-floating filter tank
  • Rapid and high-efficiency oil removal air-floating filter tank

Examples

Experimental program
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Effect test

Embodiment 1

[0059] like figure 1 As shown, a high-speed degreasing device provided in this embodiment includes a water inlet chamber 25 and several air flotation chambers 24 arranged in sequence along the sewage flow direction, and the water inlet chamber 25 is connected to the water inlet pipe 1 on the side far away from the air flotation chamber 24 The water inlet pipe 1 passes through the wall of the water inlet chamber 25 away from the side of the air flotation chamber 24 and extends upward. The water inlet chamber 25 is communicated with the air flotation chamber 24 through a water passage 23, and the adjacent air flotation chambers 24 are also communicated through the water passage 23, and the water passage 23 is respectively arranged on the adjacent air flotation chamber 24 or Air flotation chamber 24 and water inlet chamber 25 are shared on the chamber wall. Each air flotation chamber 24 is provided with a dissolved air releaser 7 and a diversion tank 21, the dissolved air releas...

Embodiment 2

[0066] like figure 1 As shown, a fast and efficient degreasing device with a high-speed degreasing device provided in this embodiment includes a high-speed degreasing zone 2, a coagulation zone 3, a flocculation zone 4, and an air flotation zone arranged in sequence along the sewage flow direction 5 and filtering zone 6, the high-speed degreasing zone 2 comprises the high-speed degreasing device in embodiment 1, and a water passage 8 is passed between the high-speed degreasing zone 2 and the coagulation zone 3, the flocculation zone 4 and the air flotation zone 5 In communication, the water passage 8 can be arranged between the coagulation zone 3 and the flocculation zone 4 at the bottom of the shared wall in the adjacent area of ​​the air flotation filter to communicate through the water passage 23 . The bottom of the filter area 6 is connected with an outlet pipe 64 for the water filtered by the air flotation to flow out. The high-speed degreasing zone 2 is used to efficien...

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Abstract

The invention discloses a high-speed oil removal device comprising a water inlet chamber and a plurality of air-floating chambers arranged sequentially along the sewage flowing direction; one side, away from the air-floating chambers, of the water inlet chamber is connected with a water inlet pipe, and each air-floating chamber is internally provided with a diversion groove and a dissolved gas releaser arranged in the corresponding diversion groove; the water inlet chamber communicates with the air-floating chambers through a water inlet, and the diversion groove arranged in the air-floating chamber close to the water inlet chamber is arranged at the water inlet and communicates with the water inlet; each adjacent air-floating chambers are connected through a water passing pore passage, and the diversion grooves arranged in the adjacent air-floating chambers communicate with the water passing pore passages. The invention also discloses a rapid and high-efficiency oil removal air-floating filter tank, wherein a high-speed oil removal zone, a coagulation zone, a flocculation zone, an air-floating zone and a filtration zone are arranged in turn along the sewage flowing direction. Thehigh-speed oil removal zone includes the high-speed oil removal device, and the filter zone is connected with a water outlet pipe. The advantages comprise that oil in sewage can be removed with high efficiency, a part of oil slick can be collected and reused, and ss suspended matters in the sewage can be separated and filtered.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a fast and efficient oil removal air flotation filter. Background technique [0002] Sewage after biochemical or physicochemical reactions contains ss suspended matter, ss suspended matter refers to solid matter suspended in water, including inorganic matter, organic matter and silt, clay, microorganisms, etc. that are insoluble in water. Air flotation is a traditional solid-liquid separation method. Air flotation filter (DAFF) is a new technology combining dissolved air flotation tank and multi-media filter. The upper part of the air flotation filter is a rectangular dissolved air flotation tank. , the lower part is a multi-media filter. [0003] A general air flotation filter consists of a dissolved air release system, a flotation filtration system, an air-water backwash system, and a sludge system. The principle of air flotation is to use partial reflux pressure dissolved air...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/24C02F1/40C02F1/001C02F1/5236
Inventor 王晓阳汪德罡谢晓朋
Owner 北京翰祺环境技术有限公司
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