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Sewage treatment system

A technology of sewage treatment system and air flotation tank, which is applied in water/sewage treatment, flotation water/sewage treatment, water/sewage treatment equipment, etc. It can solve the problems of difficult control of dissolved air tanks, achieve stable floc removal rate, The effect of simple control and stable floc content

Active Publication Date: 2021-08-17
广东拓致环境科技有限公司
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  • Description
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the problem that the control of the dissolved gas tank is relatively difficult

Method used

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Embodiment Construction

[0019] The invention will be described in detail below in conjunction with specific embodiments.

[0020] Such as Figure 1~Figure 2 , is an embodiment of the sewage treatment system of the present invention, specifically:

[0021] A sewage treatment system, comprising a main air flotation tank 1, an auxiliary air flotation tank 2, an anaerobic fermentation tank 3, an aerobic fermentation tank 4 and a sedimentation tank 5 connected in sequence, and also includes a main air-dissolving tank 6 and an auxiliary air-dissolving tank 7, The main air flotation tank 1 and the secondary air flotation tank 2 are communicated with the main dissolved air tank 6 and the secondary dissolved air tank 7 respectively, and the volume of the secondary air flotation tank 2 is 10-35% of the volume of the main air flotation tank 1. The gas volume is mainly 5-35% of the dissolved gas capacity of the dissolved gas tank 6.

[0022] After the flocculant is added to the sewage, most of the flocs produc...

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Abstract

The invention provides a sewage treatment system which comprises a main air floatation tank, an auxiliary air floatation tank, an anaerobic fermentation tank, an aerobic fermentation tank and a sedimentation tank which are sequentially communicated, and further comprises a main dissolved air tank and an auxiliary dissolved air tank, and the main air floatation tank and the auxiliary air floatation tank are communicated with the main dissolved air tank and the auxiliary dissolved air tank respectively. The volume of the auxiliary air floatation tank is 10-35% of the volume of the main air floatation tank, and the dissolved air quantity of the auxiliary dissolved air tank is 5-35% of the dissolved air quantity of the main dissolved air tank. The system has the advantages that the power of the main dissolved air tank and the auxiliary dissolved air tank does not need to be controlled in real time, and it can be guaranteed that the content of flocculate in discharged sewage is stable. In addition, the equipment investment of the auxiliary air floatation tank and the auxiliary dissolved air tank is low. The main dissolved air tank and the auxiliary dissolved air tank are easy to control, the operation load of the dissolved air tanks is stable, and the flocculate removal rate is stable.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a sewage treatment system. Background technique [0002] The Chinese patent application with the publication number CN112047583A discloses a process for treating sewage in slaughterhouses. After the slaughter wastewater passes through the coarse grid well, the waste water treated by the grease trap enters the fine grid well, and the effluent enters the regulating tank, and the effluent is lifted by the pump. Enter the air flotation machine, reduce COD, remove suspended solids and oil slicks by adding flocculation agents; the effluent of the air flotation machine enters the adjustment and hydrolysis tank, and the effluent of the adjustment and hydrolysis tank enters the subsequent anoxic pool; the effluent of the anoxic pool enters the good Oxygen tank, under aerated conditions, uses aerobic microorganisms to decompose organic matter in wastewater into CO 2 and water; after two-st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/24
CPCC02F1/24C02F1/40C02F1/52C02F2201/002
Inventor 梁汝广陈大瑜李春清
Owner 广东拓致环境科技有限公司
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