A sewage treatment device
A sewage treatment device and pool body technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of suspended solids residue, achieve the improvement of heavy metal ion removal rate, The effect of saving investment and improving removal efficiency
Active Publication Date: 2018-06-26
WUXI GONGYUAN MACHINERY
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Problems solved by technology
However, after the sewage passes through the conventional air flotation equipment, some suspended matter remains, such as colloidal COD and residual macromolecular substances
Method used
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[0017] Such as Figure 1 to Figure 5 Shown, it comprises cell body 1 and dissolved air system, and dissolved gas system, cell body comprises air flotation area and filter area; Zone 4 and separation zone 6, reaction zone 3 and contact mixing zone 4 are connected through water distribution pipe 20, reaction zone 3 is provided with sewage water inlet 2 and two agitators 44, and the stirring shaft 45 of agitator 44 extends into reaction zone 3 The bottom, the middle and the bottom of the stirring shaft 45 are respectively provided with a stirring paddle 46, and the separation area 6 is provided with a slag scraper 7 and a slag tank 9 cooperating with the slag scraper, and the slag tank 9 is provided with a slag guide weir 8.
[0018] The filtration area is provided with a sewage collection tank 10, a filter tank 16, a filtrate storage tank 21, a membrane filter tank 25 and a clear water tank 19. The sewage collection tank 10 is located above the filter tank 16 and is provided wit...
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The invention provides a sewage treatment device. By means of the device, colloid COD and residual macromolecules in sewage can be further removed, and suspended solid removal efficiency can be improved. The device comprises a pool body and an air dissolving system; The device is characterized in that the pool body comprises an air floatation area and a filtration area; the air floatation area comprises a reaction zone, a contact mixing zone and a separating zone, stirrers are arranged in the reaction zone, stirring shafts of the stirrers extend to the bottom of the reaction zone, and the middle and the bottom of each stirring shaft are each provided with a stirring paddle; a sewage collection tank, a filtering basin, a filtered liquid storage tank, a membrane filtration tank and a clean water tank are arranged in the filtration area, the sewage collection tank is located above the filtering basin and provided with an overflow port (A), a water inlet in the bottom of the sewage collection tank is communicated with the separating zone, the filtered liquid storage tank is provided with an overflow port (B) communicated with the membrane filtration tank, a hollow fiber membrane assembly is arranged in the membrane filtration tank, and a clear liquid outlet of the hollow fiber membrane assembly is communicated with the clean water tank; a filter cap, a filter board, a receiving layer, a filter material layer, a receiving layer and a filter board are arranged in the filter basin in sequence from bottom to top.
Description
technical field [0001] The invention relates to a sewage treatment 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 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, there are still some suspended solids, such as colloidal COD and residual macromolecular substances. Contents of the invention [0003] In view of the above problems, the present invention provides a sewage treatment device, which...
Claims
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IPC IPC(8): C02F9/04
Inventor 孙涛孙连军黄俊波
Owner WUXI GONGYUAN MACHINERY