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Sedimentation air floatation composite tank

A sedimentation air flotation and sedimentation tank technology, which is applied in the direction of sedimentation treatment, flocculation/sedimentation water/sewage treatment, flotation water/sewage treatment, etc., can solve the problem of large area occupied by sedimentation tanks and air flotation tanks, and achieve improved sewage treatment Effect, the effect of enhancing the air floating effect

Active Publication Date: 2018-12-07
绍兴市南洋染织有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] At present, the sedimentation tank and the air flotation tank are installed separately, and the two are connected through the pipeline. This arrangement leads to a large area occupied by the sedimentation tank and the air flotation tank. Sedimentation air flotation composite tank for a sewage treatment process

Method used

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  • Sedimentation air floatation composite tank
  • Sedimentation air floatation composite tank
  • Sedimentation air floatation composite tank

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] See attached figure 1 , a sedimentation air flotation compound tank, mainly including a sedimentation tank 100, a guide tank 200 and an air flotation tank 300. Wherein, the guide tank 200 is arranged on the outside of the sedimentation tank 100, and the bottom surface of the guide tank 200 is lower than the top edge of the sedimentation tank 100, that is, the overflowing sewage in the sedimentation tank 100 will fall into the guide tank 200; The tank 300 is arranged on one side of the settling tank 100 , and one side of the air flotation tank 300 communicates with the guide tank 200 , that is, the sewage in the guide tank 200 can be discharged into the air flotation tank 300 .

[0041] See attached figure 1 And attached figure 2 , the sedimentation tank 100 is a circular tank, and the bottom surface of the sedimentation tank 100 is a tapered surfac...

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Abstract

The invention discloses a sedimentation air floatation composite tank which solves the problem that the land occupation area of a sedimentation tank and an air floatation tank is large at the presentstage. Main points of the technical scheme are that the sedimentation air floatation composite tank includes a sedimentation groove, a guide groove which is disposed along the top edge of the sedimentation groove and does not communicate with the sedimentation groove, and an air floatation groove which is located at one side of the sedimentation groove and communicates with the guide groove at theupper end, wherein the bottom surface of the guide groove is a guiding inclined plane which is inclined downward in a direction of the air floatation groove; the sedimentation groove is further provided with a water inlet pipe for introducing sewage into the sedimentation groove, and a discharge pipe for discharging pollutants at the bottom of the sedimentation groove; the air floatation groove is further provided with a first aeration device for increasing the bubble content of the sewage in the air floatation groove; and one side of the air floatation groove is provided with a dirt discharge groove, the top of the air floatation groove is provided with a sediment scraper that sweeps the pollutants on the water surface of the air floatation groove into the dirt discharge groove, and theair floatation groove is also provided with a water outlet pipe. The sedimentation air floatation composite tank is small in land occupied area, and can perform a purification process of sedimentationand air floatation on the sewage.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to a sedimentation air flotation composite pool. Background technique [0002] In the sewage treatment of the printing and dyeing industry, the sewage needs to pass through the anaerobic tank, aerobic tank, sedimentation tank and air flotation tank in sequence, and finally discharged through the discharge tank. Because it is necessary to add additives in the sedimentation tank to allow some pollutants to settle, and then pass the sewage treated by the sedimentation tank into the air flotation tank, and a coagulant will be added to the air flotation tank to make some pollutants flocculent After the air bubbles are brought up, the pollutants float on the water surface of the air flotation tank, and are finally scraped off by the slag scraping device of the air flotation tank. [0003] At present, the sedimentation tank and the air flotation tank are installed separately, and the ...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/24C02F1/52C02F9/00C02F2001/007C02F2201/002C02F2201/007C02F2301/08C02F2303/14
Inventor 李海林
Owner 绍兴市南洋染织有限公司
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