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A sewage treatment device

A technology of sewage treatment device and dosing device, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., and can solve the problems of destroying the continuous effluent of the system.

Active Publication Date: 2019-02-15
BEIJING BIOTECHINA ENVIRONMENT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the attachment thickness of the dynamic membrane on the support is thick enough, it is necessary to wash away the old membrane on the carrier through backwashing regularly, and then after a period of time to generate a new membrane to filter, the water quality of the effluent can be guaranteed, and the backwashing process will destroy The system continuously discharges water and needs further improvement

Method used

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  • A sewage treatment device
  • A sewage treatment device
  • A sewage treatment device

Examples

Experimental program
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Effect test

example 1

[0023] The sewage in this example comes from fish farming wastewater in marine aquariums. The main features are: the turbidity of water is relatively high, and the SS content is high.

[0024] The treatment process is: self-generated dynamic membrane process (the present invention) + disinfection process.

[0025] The dosage of compounding agent is: flocculant is 10mg / L; coagulant is 0.1mg / L.

[0026] Influent water quality and treated water quality are:

[0027]

[0028]

example 2

[0030] The sewage in this example is used to extract oily waste water. The main features are: high suspended solids and oil content in raw water.

[0031] The treatment process is: three-phase separator + oil removal buffer tank + self-generated dynamic membrane process. The flocculant is 50mg / L; the coagulation aid is 0.1mg / L.

[0032] Influent water quality is:

[0033] pH

oil (mg / L)

SS(mg / L)

6～8.5

800

1200

[0034] The water quality after treatment is:

[0035] pH

oil (mg / L)

SS(mg / L)

6～8.5

10

10

[0036] The formation speed of the dynamic membrane in the device is related to the quality of the influent water, and the filtration effect is related to the compactness of the dynamic membrane, that is, the combination degree of the chemical agent and the pollution in the sewage. In this example, conventional chemicals are used to fully mix with sewage to form a dynamic film layer that can effectively absorb...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device. The sewage treatment device comprises a main body device and a water inlet dosing device, wherein a water outlet tank, an inclined baffle, a dynamic membrane layer and a mud discharging layer are sequentially arranged in the main body device from top to bottom, the soil discharging layer is provided with water distribution hoppers, mud outlet pipes, mud discharging tanks and a mud collecting hopper, the mud outlet pipes are connected with the mud discharging tanks, the mud discharging tanks are formed in the bottom of the mud discharging layer and the bottom of the mud collecting hopper, and the water distribution hoppers are connected with the water inlet dosing device through a water collecting device. According to the sewage treatment device disclosed by the invention, three technologies of coagulation, precipitation and filtration are realized at the same time, continuous water inlet and outlet can be realized, and a back flushing technology is not needed.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment device. Background technique [0002] In the existing dynamic membrane sewage treatment process, the formation of the dynamic membrane requires a support. In the mixed solution, the dynamic membrane is formed by relying on the large-aperture support to improve the ability to intercept pollutants and ensure that the effluent water quality meets the standard. The formation of such a dynamic membrane requires a good support to ensure the solid-liquid separation effect of the membrane. [0003] The thickness and position of the supported dynamic film are closely related to the installation position and arrangement form of the large-aperture support. When the attachment thickness of the dynamic membrane on the support is thick enough, it is necessary to wash away the old membrane on the carrier through backwashing regularly, and then after a pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/52C02F9/00
Inventor 李国文张学辉王彦成
Owner BEIJING BIOTECHINA ENVIRONMENT CORP
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