CN217709185U

CN217709185U - Recycling system of aerobic effluent

Info

Publication number: CN217709185U
Application number: CN202222178996.8U
Authority: CN
Inventors: 姚东烨; 顾佳宇; 吴建锋
Original assignee: JIANGSU LIANHAI BIOLOGICAL TECHNOLOGY CO LTD
Current assignee: JIANGSU LIANHAI BIOLOGICAL TECHNOLOGY CO LTD
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-01
Anticipated expiration: 2032-08-18

Abstract

The utility model belongs to the ethanol production field provides a recycling system of good oxygen play water, include: the device comprises an aerobic tank and an aerobic sedimentation tank communicated with the aerobic tank, wherein the aerobic sedimentation tank is communicated with an MBR tank, an MBR membrane group is arranged in the MBR tank, the MBR membrane group is communicated with a water collecting tank, the water collecting tank is communicated with a first water inlet of a water mixing tank through an ultraviolet sterilizer, and a second water inlet of the water mixing tank is communicated with a tap water source; wherein, an aeration mechanism is arranged at the lower side of the MBR membrane group in the MBR tank. The utility model discloses an aerobic effluent's recycling system has not only stabilized fermentation efficiency, has stabilized reducing sugar, total sugar, has kept the starch yield, has reduced sewage advanced treatment's cost, has reduced the emission of sewage, simultaneously, has still reduced the running water use amount, practices thrift the use cost of running water.

Description

Recycling system of aerobic effluent

Technical Field

The utility model relates to an ethanol production field especially relates to a recycling system of good oxygen play water.

Background

When fuel ethanol is produced, sewage is generated, and the sewage treatment process is generally as follows: refined waste mash enters a high-temperature anaerobic tank, after 15 days of fermentation, COD is reduced to 4000mg/L from 30000mg/L, anaerobic effluent is subjected to heat exchange and precipitation, sludge is used as an organic fertilizer, the precipitated effluent enters a hydrolysis acidification tank, the effluent of the hydrolysis acidification tank enters a first-level aerobic tank, the effluent of the first-level aerobic tank is subjected to precipitation, the effluent enters a second-level aerobic tank, the second-level aerobic effluent is subjected to precipitation, the effluent enters an air flotation machine, and the effluent is treated and discharged after reaching the standard.

The discharge after the ethanol production sewage treatment not only wastes a large amount of water resources, but also increases the burden of urban sewage treatment; therefore, the utility model discloses an aerobic effluent's recycling system through the aerobic effluent recycling in with above-mentioned sewage treatment process one-level aerobic tank has not only stabilized fermentation efficiency, stabilizes the reducing sugar, and total sugar keeps the starch yield, simultaneously, has reduced sewage advanced treatment's cost, has reduced the emission of sewage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a recycling system of good oxygen effluent through the good oxygen effluent retrieval and utilization with sewage treatment, has not only stabilized fermentation efficiency, stabilizes the reducing sugar, and total sugar keeps the starch yield, simultaneously, has reduced sewage advanced treatment's cost, has reduced the emission of sewage.

The utility model provides a technical scheme as follows: an aerobic effluent recycling system, comprising: the device comprises an aerobic tank, an aerobic sedimentation tank communicated with the aerobic tank, an MBR tank communicated with the aerobic sedimentation tank, an MBR membrane group arranged in the MBR tank, a water collecting tank communicated with a first water inlet of a water mixing tank through an ultraviolet sterilizer, and a second water inlet of the water mixing tank communicated with a tap water source; wherein, an aeration mechanism is arranged at the lower side of the MBR membrane group in the MBR tank.

Furthermore, a disinfection cavity is arranged at the water inlet in the water collecting tank, and a plurality of ultraviolet lamps are arranged at the top of the disinfection cavity.

Furthermore, a plurality of drain holes are arranged on the cavity wall of the disinfection cavity.

Further, the water outlet of the MBR membrane group is communicated with a suction pump through a first pipeline, and the suction pump is communicated with the water inlet of the water collecting tank.

Furthermore, a water pump is arranged in the water collecting tank and is communicated with the water inlet of the ultraviolet sterilizer through a second pipeline.

Furthermore, a water outlet of the ultraviolet sterilizer is communicated with the first water inlet of the water mixing tank through a third pipeline, and an electromagnetic valve is arranged on the third pipeline.

Furthermore, a water outlet of the water mixing tank is communicated with the crushing workshop.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses a recycling system of good oxygen play water through setting up the MBR pond, utilizes the MBR membrane group to go out the water filtration with good oxygen, detaches a large amount of suspensions in the good oxygen play water.

(2) The utility model discloses an aerobic effluent's recycling system through setting up the ultraviolet disinfector, makes the aerobic effluent after the filtration through ultraviolet sterilization, solves the contamination problem that aerobic effluent long-term operation probably leads to.

(3) The utility model discloses an aerobic effluent's recycling system has not only stabilized fermentation efficiency, has stabilized reducing sugar, total sugar, has kept the starch yield, has reduced sewage advanced treatment's cost, has reduced the emission of sewage, simultaneously, has still reduced the running water use amount, practices thrift the use cost of running water.

Drawings

FIG. 1 is a schematic structural view of the aerobic effluent recycling system of the present invention.

The reference numbers are as follows: 1. the device comprises an aerobic tank, 2, an aerobic sedimentation tank, 3, an MBR tank, 31, an MBR membrane group, 32, a first pipeline, 33, a suction pump, 34, an aeration mechanism, 4, a water collecting tank, 41, a disinfection chamber, 42, an ultraviolet lamp, 43, a water pump, 44, a second pipeline, 5, an ultraviolet disinfector, 51, a third pipeline, 52, an electromagnetic valve, 6 and a water mixing tank.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in figure 1, the utility model relates to a recycling system of aerobic effluent, which comprises: the device comprises an aerobic tank 1 and an aerobic sedimentation tank 2 communicated with the aerobic tank 1, wherein the aerobic sedimentation tank 2 is communicated with an MBR tank 3, an MBR membrane group 31 is arranged in the MBR tank 3, the MBR membrane group 31 is communicated with a water collecting tank 4, the water collecting tank 4 is communicated with a first water inlet of a water mixing tank 6 through an ultraviolet sterilizer 5, and a second water inlet of the water mixing tank 6 is communicated with a tap water source; wherein, an aeration mechanism 34 is arranged at the lower side of the MBR membrane group 31 in the MBR tank 3.

The MBR of the embodiment is a water treatment technology which is combined by a membrane separation unit and a biological treatment unit.

The MBR membrane group 31 of the embodiment has the advantages that the treated water is extremely clear, suspended matters and turbidity are close to zero, and bacteria and viruses are greatly removed through the high-efficiency separation effect of the membrane.

The aeration mechanism 34 of the present embodiment is used for the purpose of aeration: oxygen is supplied to the microorganisms, and simultaneously, the rising bubbles and the generated disturbed water flow clean the surface of the MBR membrane group 31 and prevent the sludge from gathering so as to keep the membrane flux stable.

The aeration mechanism 34 of the present embodiment includes: an aeration pipe for aeration in the MBR tank 3, and a blower for supplying air into the aeration pipe.

The uv sterilizer 5 of the present embodiment is an existing apparatus.

The ultraviolet sterilizer 5 of the present embodiment sterilizes the filtered aerobic effluent through ultraviolet rays, thereby solving a possible contamination problem caused by long-term operation of the aerobic effluent.

In the water mixing tank 6 of the embodiment, the water volume ratio of the aerobic effluent and the tap water is adjusted, so that when the aerobic effluent and the tap water enter the fermentation tank, the reducing sugar reaches 6-8%, the fermentation result is unchanged, the fermentation efficiency is stabilized, the energy consumption is reduced, and the production requirement is met.

Further, a disinfection chamber 41 is arranged at the water inlet in the water collecting tank 4, and a plurality of ultraviolet lamps 42 are arranged at the top of the disinfection chamber 41.

The cavity wall of the disinfection cavity 41 of the present embodiment is provided with a plurality of drainage holes.

The sterilization chamber 41 of this embodiment is used to reduce the flow rate of water, so that the sterilization effect is better.

The ultraviolet lamp 42 of the present embodiment is used for the first sterilization.

Further, the water outlet of the MBR membrane group 31 is communicated with a suction pump 33 through a first pipeline 32, and the suction pump 33 is communicated with the water inlet of the water collecting tank 4.

The suction pump 33 of this embodiment is used for conveying the water filtered by the MBR membrane group 31, and controlling the flow rate of the water flow entering the water collecting tank 4, so that the sterilization effect is better.

Further, a water pump 43 is arranged in the water collecting tank 4, and the water pump 43 is communicated with the water inlet of the ultraviolet sterilizer 5 through a second pipeline 44.

The water pump 43 of this embodiment is used to transport the water in the water collecting tank 4 to the ultraviolet sterilizer 5.

Further, a water outlet of the ultraviolet sterilizer 5 is communicated with the first water inlet of the water mixing pool 6 through a third pipeline 51, and an electromagnetic valve 52 is arranged on the third pipeline 51.

The electromagnetic valve 52 of the present embodiment is used for controlling the amount of the aerobic effluent entering the water mixing tank 6.

Further, a water outlet of the water mixing pool 6 is communicated with a crushing workshop.

The working principle is as follows: the effluent of the aerobic tank 1 enters an aerobic sedimentation tank 2 for sedimentation, the aerobic effluent after sedimentation in the aerobic sedimentation tank 2 enters an MBR tank 3, after being filtered by an MBR membrane group 31, the effluent is conveyed into a water collecting tank 4 by a suction pump 33, the effluent and the flow rate are controlled by the suction pump 33 and a disinfection cavity 41, the ultraviolet lamp 42 realizes primary disinfection and sterilization, and then is conveyed into an ultraviolet sterilizer 5 by a water pump 43, and after secondary disinfection and sterilization of the ultraviolet sterilizer 5, the effluent passes through a third pipeline 51 and enters a mixed water tank 6 through an electromagnetic valve 52, meanwhile, a second water inlet of the mixed water tank 6 conveys tap water, the water volume ratio of the aerobic effluent and the tap water is adjusted, and the mixed water enters a crushing workshop.

Claims

1. An aerobic effluent recycling system, comprising: the device comprises an aerobic tank (1) and an aerobic sedimentation tank (2) communicated with the aerobic tank (1), and is characterized in that the aerobic sedimentation tank (2) is communicated with an MBR (membrane bioreactor) tank (3), an MBR membrane group (31) is arranged in the MBR tank (3), the MBR membrane group (31) is communicated with a water collecting tank (4), the water collecting tank (4) is communicated with a first water inlet of a water mixing tank (6) through an ultraviolet sterilizer (5), and a second water inlet of the water mixing tank (6) is communicated with a tap water source; wherein an aeration mechanism (34) is arranged at the lower side of the MBR membrane group (31) in the MBR tank (3).

2. The recycling system of aerobic effluent as claimed in claim 1, wherein a disinfection chamber (41) is provided at the water inlet in the water collecting tank (4), and a plurality of ultraviolet lamps (42) are provided at the top of the disinfection chamber (41).

3. The recycling system of aerobic effluent as claimed in claim 2, wherein the chamber wall of the sterilizing chamber (41) is provided with a plurality of drainage holes.

4. The recycling system of aerobic effluent in claim 1, wherein the water outlet of the MBR membrane group (31) is communicated with a suction pump (33) through a first pipeline (32), and the suction pump (33) is communicated with the water inlet of the water collecting tank (4).

5. The recycling system of aerobic effluent according to claim 1, wherein a water pump (43) is disposed in the water collecting tank (4), and the water pump (43) is connected to the inlet of the ultraviolet sterilizer (5) through a second pipe (44).

6. The recycling system of aerobic effluent according to claim 1, wherein the water outlet of the ultraviolet sterilizer (5) is communicated with the first water inlet of the mixing tank (6) through a third pipeline (51), and the third pipeline (51) is provided with an electromagnetic valve (52).

7. The recycling system of aerobic effluent as claimed in claim 1, wherein the outlet of the mixing basin (6) is connected to the crushing plant.