A sedimentation air flotation composite pool
A technology of sedimentation air flotation and sedimentation tank, which is applied in the fields of sedimentation treatment, flocculation/sedimentation water/sewage treatment, flotation water/sewage treatment, etc. Effect
Active Publication Date: 2021-04-13
绍兴市南洋染织有限公司
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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
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[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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The invention discloses a sedimentation-air flotation compound tank, which solves the problem that the sedimentation tank and the air flotation tank occupy large areas at the present stage. The main point of the technical solution is a sedimentation air flotation composite tank, including a sedimentation tank, a guide tank opened along the top edge of the sedimentation tank and not connected to the sedimentation tank, and an air flotation tank located on one side of the sedimentation tank and connected to the guide tank at the upper end. The bottom surface of the guide tank is a guide slope inclined downward toward the direction of the air flotation tank; the sedimentation tank is also provided with an inlet pipe for passing sewage into the sedimentation tank and a sewage discharge pipe for discharging pollutants at the bottom of the sedimentation tank; The air flotation tank is also provided with a first aeration device that increases the bubble content of the sewage in the air flotation tank. One side of the air flotation tank is provided with a sewage tank and the top of the air flotation tank is provided with a device that removes pollutants on the water surface of the air flotation tank. The slag scraper swept into the sewage tank, the air flotation tank also has an outlet pipe, and the sedimentation air flotation composite pool has a small footprint and can perform sedimentation and air flotation purification processes on 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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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