CN215249934U - Integrated device for restaurant wastewater treatment and oil stain recovery - Google Patents

Integrated device for restaurant wastewater treatment and oil stain recovery Download PDF

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Publication number
CN215249934U
CN215249934U CN202120678729.XU CN202120678729U CN215249934U CN 215249934 U CN215249934 U CN 215249934U CN 202120678729 U CN202120678729 U CN 202120678729U CN 215249934 U CN215249934 U CN 215249934U
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China
Prior art keywords
oil
water
collecting barrel
water collecting
restaurant wastewater
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Expired - Fee Related
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CN202120678729.XU
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Chinese (zh)
Inventor
佘玉龙
谢雨霏
吴力立
陈建城
黄严锋
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Priority to CN202120678729.XU priority Critical patent/CN215249934U/en
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Abstract

The utility model relates to a food and beverage waste water treatment and greasy dirt recovery integrated device, including profit collecting vessel, normal water collecting vessel, pure water collecting vessel, filter unit, preliminary oil-water separation unit and ultimate oil-water separation unit, the filter unit for get rid of the granule impurity in the food and beverage waste water and deliver to the food and beverage waste water after filtering the profit collecting vessel, preliminary oil-water separation unit, it is right to be used for food and beverage waste water in the profit collecting vessel carries out preliminary oil-water separation and sends the food and beverage waste water after separating to the normal water collecting vessel, ultimate oil-water separation unit, it is right to be used for food and beverage waste water in the normal water collecting vessel carries out last oil-water separation and sends the pure water after separating to in the pure water collecting vessel. The utility model discloses a filtration, preliminary water oil separating and this tertiary purification of ultimate oil-water separation finally obtain the pure water, also establish the basis for food and beverage discarded object resource utilization when reducing use cost and energy consumption.

Description

Integrated device for restaurant wastewater treatment and oil stain recovery
Technical Field
The utility model relates to a food and beverage waste water treatment technical field specifically is a food and beverage waste water treatment and greasy dirt recovery integrated device.
Background
At present, restaurant wastewater treatment devices are most commonly applied in an oil separation retention type and air floatation combined type, but the devices generally have the problems of low treatment precision, low oil stain recovery rate, high energy consumption, high cost and the like, so that the effluent quality is poor, and the energy-saving and emission-reducing benefits do not meet the expected requirements.
At present, a plurality of restaurant wastewater treatment technologies exist, wherein the oil-water separation precision of centrifugal separation, flotation and electrochemical methods is low; oil stains are difficult to recover by adsorption, oxidation and biodegradation methods; the microblog radiation method is high in cost and difficult to popularize.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a food and beverage waste water treatment and greasy dirt recovery integrated device, through this tertiary purification of filtration, preliminary oil-water separation and ultimate oil-water separation, finally obtain the pure water, also establish the basis for food and beverage discarded object resource utilization when reducing use cost and energy consumption.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: an integrated device for restaurant wastewater treatment and oil stain recovery comprises an oil-water collecting barrel, a reclaimed water collecting barrel, a purified water collecting barrel, a filtering unit, a preliminary oil-water separating unit and a final oil-water separating unit,
the filtering unit is used for removing particle impurities in the restaurant wastewater and sending the filtered restaurant wastewater to the oil-water collecting barrel,
the preliminary oil-water separation unit is used for carrying out preliminary oil-water separation on the restaurant wastewater in the oil-water collecting barrel and sending the separated restaurant wastewater to the reclaimed water collecting barrel,
and the final oil-water separation unit is used for performing the final oil-water separation on the catering wastewater in the reclaimed water collecting barrel and sending the separated purified water to the purified water collecting barrel.
Further, the preliminary oil-water separation unit comprises a demulsification membrane assembly, an outlet of the oil-water collecting barrel is communicated with the demulsification membrane assembly through a pipeline, and an outlet of the demulsification membrane assembly is communicated with the reclaimed water collecting barrel.
Further, the final oil-water separation unit comprises a modified PVDF membrane component, an outlet of the reclaimed water collecting barrel is communicated with the modified PVDF membrane component through a pipeline, and an outlet of the modified PVDF membrane component is communicated with the purified water collecting barrel.
Further, the filter unit includes solid-liquid separation bucket, the solid-liquid separation bucket has the water inlet of receiving food and beverage waste water, just filter screen and grid have been laid in proper order along food and beverage waste water's flow direction in the solid-liquid separation bucket, process the food and beverage waste water after the grid filters flows to the profit collecting vessel.
Further, the solid-liquid separation barrel is communicated with the oil-water collecting barrel through a solid-liquid separation water outlet valve.
Further, an outlet of the oil-water collecting barrel is provided with an oil-water collecting barrel water outlet valve.
Further, a water outlet valve of the reclaimed water collecting barrel is arranged at an outlet of the reclaimed water collecting barrel; when the water outlet valve of the oil-water collecting barrel is arranged, a second-stage three-way ball valve is arranged on a pipeline for communicating the water outlet valve of the reclaimed water collecting barrel with the water outlet valve of the oil-water collecting barrel.
Furthermore, a third-stage three-way ball valve is arranged on a pipeline communicated with the initial oil-water separation unit and the final oil-water separation unit.
Further, the preliminary oil-water separation unit is communicated with the oil-water collecting barrel through a second-stage separation point, and an oil-water collecting barrel water inlet valve is further arranged on a pipeline of the second-stage separation point and the oil-water collecting barrel.
Further, the final oil-water separation unit is communicated with the purified water collecting barrel through a third-stage separation point.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a food and beverage waste water treatment and greasy dirt recovery integrated device, through this tertiary purification of filtration, preliminary oil-water separation and ultimate oil-water separation, finally obtains the pure water, also lays a foundation for food and beverage discarded object resource utilization when reducing use cost and energy consumption.
Drawings
FIG. 1 is a schematic view of an integrated restaurant wastewater treatment and oil stain recovery device provided by an embodiment of the utility model;
reference numerals: 10-a solid-liquid separation barrel; 20-filtering with a filter screen; 30-a grid; 40-a scaffold; 50-a water outlet valve of the solid-liquid separation barrel; 60-an oil-water collecting barrel; 70-an oil-water collecting barrel water inlet valve; 80-water outlet valve of oil-water collecting barrel; 90-a second-stage three-way ball valve; 100-a water outlet valve of the reclaimed water collecting barrel; 110-reclaimed water collection barrel; 120-purified water collecting barrel water outlet valve; 130-a pipe; 140-a purified water collection bucket; 150-third stage three-way ball valve; 160-a demulsification membrane component; 170-modified PVDF membrane module; 180-second stage separation point; 190-third stage separation point.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an integrated device for restaurant wastewater treatment and oil stain recovery, including an oil-water collecting tank 60, a middle water collecting tank 110, a purified water collecting tank 140, a filtering unit, a preliminary oil-water separating unit and a final oil-water separating unit, where the filtering unit is used to remove particle impurities in restaurant wastewater and send the filtered restaurant wastewater to the oil-water collecting tank 60, the preliminary oil-water separating unit is used to perform preliminary oil-water separation on the restaurant wastewater in the oil-water collecting tank 60 and send the separated restaurant wastewater to the middle water collecting tank 110, and the final oil-water separating unit is used to perform final oil-water separation on the restaurant wastewater in the middle water collecting tank 110 and send the separated purified water to the purified water collecting tank 140. In this embodiment, through filtration, preliminary oil-water separation and ultimate oil-water separation this tertiary purification, finally obtain the pure water, also establish the basis for food and beverage waste resource utilization when reducing use cost and energy consumption. Specifically, the present embodiment integrates the oil-water collecting barrel 60, the reclaimed water collecting barrel 110, and the purified water collecting barrel 140, and then the filtration unit, the preliminary oil-water separation unit, and the final oil-water separation unit are cooperated to complete three-stage purification, so as to finally obtain purified water, and the purified water is discharged from the purified water collecting barrel water outlet valve 120 of the purified water collecting barrel 140. Preferably, the filtering unit is arranged in the solid-liquid separation barrel 10, so that the device integrates four barrel bodies, and at least two oil-water separation units are additionally arranged, thereby achieving the purpose of integrally treating the restaurant wastewater. Of course, there may be more than two oil-water separation units, the number of which may be chosen according to the actual situation, to obtain a balance between cost and effectiveness. The above-mentioned integrated parts are communicated by means of a pipe 130 and provide the pressure for the restaurant waste water to circulate in the pipe 130 by means of a centrifugal pump. Preferably, the integrated parts are all fixed by a bracket 40. Preferably, an outlet of the oil-water collecting barrel 60 is provided with an oil-water collecting barrel water outlet valve 80. A water outlet valve 100 of the reclaimed water collecting barrel is arranged at an outlet of the reclaimed water collecting barrel 110; when the oil-water collecting barrel water outlet valve 80 is available, a second-stage three-way ball valve 90 is arranged on a pipeline 130 for communicating the water outlet valve of the reclaimed water collecting barrel 110 with the oil-water collecting barrel water outlet valve 80. And a third-stage three-way ball valve 150 is arranged on a pipeline 130 for communicating the preliminary oil-water separation unit and the final oil-water separation unit. The preliminary oil-water separation unit is communicated with the oil-water collecting barrel 60 through a second-stage separation point 180, an oil-water collecting barrel water inlet valve 70 is further arranged on the second-stage separation point 180 and the pipeline 130 of the oil-water collecting barrel 60, and the final oil-water separation unit is communicated with the purified water collecting barrel 140 through a third-stage separation point 190.
The following are specific examples:
as an optimization scheme of the embodiment of the utility model, please refer to fig. 1, the filter unit includes solid-liquid separation bucket 10, solid-liquid separation bucket 10 has the water inlet of receiving food and beverage waste water, just filter screen 20 and grid 30 have been laid along food and beverage waste water's flow direction in proper order in solid-liquid separation bucket 10, process the food and beverage waste water after grid 30 filters flows to profit collecting vessel 60. In this embodiment, the restaurant wastewater is poured from the water inlet of the solid-liquid separation barrel 10, the filter screen 20 removes the larger particle impurities in the restaurant wastewater, the grid 30 removes the small particle impurities in the restaurant wastewater, the grid 30 has quartz sand and activated carbon, the grid has the capability of removing the small particle impurities, the restaurant wastewater becomes oil water after double filtration, and the oil water enters the oil water collection barrel 60 through the water outlet valve 50 of the solid-liquid separation barrel. This is the first stage of the purification process.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, the preliminary oil-water separation unit includes a demulsification membrane module 160, an outlet of the oil-water collecting tank 60 is communicated with the demulsification membrane module 160 through a pipeline 130, and an outlet of the demulsification membrane module 160 is communicated with the reclaimed water collecting tank 110. In this embodiment, the demulsification membrane module 160 is used to aggregate oil droplets and aggregate the oil droplets into large oil droplets, so that the oil droplets are intercepted and separated into oil and water, the reclaimed water collecting barrel 110 collects the separated water, i.e. the outlet of the demulsification membrane module 160 is communicated with the reclaimed water collecting barrel 110, and the separated oil is sent back to the oil-water collecting barrel 60 again, i.e. enters the oil-water collecting barrel 60 through the second separation point and the oil-water collecting barrel water inlet valve 70. As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, the final oil-water separation unit includes a modified PVDF membrane module 170, an outlet of the reclaimed water collecting tank 110 is communicated with the modified PVDF membrane module 170 through a pipeline 130, and an outlet of the modified PVDF membrane module 170 is communicated with the purified water collecting tank 140. In this embodiment, the reclaimed water is discharged from the outlet of the reclaimed water collecting barrel 110, and the centrifugal pump provides pressure to make the reclaimed water flow in the pipeline 130, so that the modified PVDF membrane module 170 can perform demulsification on the reclaimed water, and finally the obtained purified water flows into the purified water collecting barrel 140. This is the third stage of the purification process.
All the valves are refined and discharged, the valves are opened or closed, and the second-stage three-way ball valve 90 and the third-stage three-way ball valve 150 are used for controlling the conduction of the pipeline 130, so that the device not only can enable three-stage purification processes to share some parts, such as the pipeline 130, the cost can be saved, but also can avoid conflict among the three-stage purification processes, the three processes are mutually independent, but also have the condition of mutual use among the three processes, for example, the oil-water collecting barrel 60 is used for both the first purification process and the second purification process, and the reclaimed water collecting barrel 110 and the centrifugal pump are used for both the second purification process and the third purification process.
The following details three purification processes:
first order purification process includes the water injection, filter, the three link of water storage, pour into food and beverage waste water into from solid-liquid separation bucket 10 water inlet, food and beverage waste water receives gravity nature whereabouts, at first through filter screen 20, the large granule impurity in the filtering food and beverage waste water, secondly through grid 30, quartz sand and the filtering of the tiny particle impurity in the active carbon with food and beverage waste water, the food and beverage waste water through dual filtering becomes the profit, fall in the profit collecting vessel 60 naturally, solid-liquid separation bucket delivery port valve 50 is in the open mode this moment, after all food and beverage waste water all pass through dual filtering, close solid-liquid separation bucket delivery port valve 50, first purification process ends.
The second stage purification process is formed by three links of pressure supply, membrane demulsification separation and storage, which are circulated, an oil-water collecting barrel water inlet valve 70 and an oil-water collecting barrel water outlet valve 80 are opened, a reclaimed water collecting barrel water outlet valve 100 is closed, a third stage three-way ball valve 150 is shifted to prevent the pipeline (right side) on one side of a modified PVDF membrane component 170 from being communicated, a centrifugal pump is started to enable oil-water to flow in the pipeline, when the oil-water passes through a demulsification membrane component 160 (actually, a PVDF membrane), the membrane component can separate the oil-water, the separated water falls into the reclaimed water collecting barrel 110 at a second stage separation point 180, the oil can flow continuously and flows back to the oil-water collecting barrel 60, the processes are circulated until all the oil-water are completely separated, the centrifugal pump is closed first, the oil-water collecting barrel water inlet 70 and the oil-water collecting barrel water outlet valve 80 are closed, and the second stage three-way ball valve 90 is shifted, so that one side (left side) of the water outlet of the oil-water collecting barrel 60 can not be conducted.
The third stage of purification process is respectively formed by three links of pressure supply, membrane separation and storage in a circulating manner, a valve 100 at the water outlet of the reclaimed water collecting barrel is opened, a third stage three-way ball valve 150 is shifted to prevent the pipeline on one side (right side) of the demulsification membrane assembly 160 from being communicated, a centrifugal pump is started to enable reclaimed water to flow in the pipeline, when the reclaimed water passes through the modified PVDF membrane assembly 17, the membrane assembly can further treat the reclaimed water, the treated water can automatically flow down to enter the purified water collecting barrel 140 when passing through a third stage separation point 190, water without demulsification can enter the reclaimed water collecting barrel 110 again, the processes form a circulation until all the emulsified water is demulsified, the centrifugal pump is closed, all the valves and the switch handle are restored, and the restaurant wastewater is prepared to be purified next time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a food and beverage waste water treatment and greasy dirt recovery integrated device which characterized in that: comprises an oil-water collecting barrel, a reclaimed water collecting barrel, a purified water collecting barrel, a filtering unit, a preliminary oil-water separating unit and a final oil-water separating unit,
the filtering unit is used for removing particle impurities in the restaurant wastewater and sending the filtered restaurant wastewater to the oil-water collecting barrel,
the preliminary oil-water separation unit is used for carrying out preliminary oil-water separation on the restaurant wastewater in the oil-water collecting barrel and sending the separated restaurant wastewater to the reclaimed water collecting barrel,
and the final oil-water separation unit is used for performing the final oil-water separation on the catering wastewater in the reclaimed water collecting barrel and sending the separated purified water to the purified water collecting barrel.
2. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: the primary oil-water separation unit comprises a demulsification membrane assembly, an outlet of the oil-water collecting barrel is communicated with the demulsification membrane assembly through a pipeline, and an outlet of the demulsification membrane assembly is communicated with the reclaimed water collecting barrel.
3. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: the final oil-water separation unit comprises a modified PVDF membrane component, an outlet of the reclaimed water collecting barrel is communicated with the modified PVDF membrane component through a pipeline, and an outlet of the modified PVDF membrane component is communicated with the purified water collecting barrel.
4. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: the filtering unit comprises a solid-liquid separation barrel, the solid-liquid separation barrel is provided with a water inlet for receiving the restaurant wastewater, a filter screen and a grid are sequentially arranged in the solid-liquid separation barrel along the flowing direction of the restaurant wastewater, and the restaurant wastewater filtered by the grid flows to the oil-water collecting barrel.
5. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 4, wherein: the solid-liquid separation barrel is communicated with the oil-water collecting barrel through a solid-liquid separation water outlet valve.
6. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: and an outlet of the oil-water collecting barrel is provided with an oil-water collecting barrel water outlet valve.
7. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1 or 6, wherein: a water outlet valve of the reclaimed water collecting barrel is arranged at an outlet of the reclaimed water collecting barrel; when the water outlet valve of the oil-water collecting barrel is arranged, a second-stage three-way ball valve is arranged on a pipeline for communicating the water outlet valve of the reclaimed water collecting barrel with the water outlet valve of the oil-water collecting barrel.
8. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: and a third-stage three-way ball valve is arranged on a pipeline communicated with the preliminary oil-water separation unit and the final oil-water separation unit.
9. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: the primary oil-water separation unit is communicated with the oil-water collecting barrel through a second-stage separation point, and an oil-water collecting barrel water inlet valve is further arranged on a pipeline of the second-stage separation point and the oil-water collecting barrel.
10. The integrated restaurant wastewater treatment and oil stain recovery device as claimed in claim 1, wherein: and the final oil-water separation unit is communicated with the purified water collecting barrel through a third-stage separation point.
CN202120678729.XU 2021-04-02 2021-04-02 Integrated device for restaurant wastewater treatment and oil stain recovery Expired - Fee Related CN215249934U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120678729.XU CN215249934U (en) 2021-04-02 2021-04-02 Integrated device for restaurant wastewater treatment and oil stain recovery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120678729.XU CN215249934U (en) 2021-04-02 2021-04-02 Integrated device for restaurant wastewater treatment and oil stain recovery

Publications (1)

Publication Number Publication Date
CN215249934U true CN215249934U (en) 2021-12-21

Family

ID=79507272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120678729.XU Expired - Fee Related CN215249934U (en) 2021-04-02 2021-04-02 Integrated device for restaurant wastewater treatment and oil stain recovery

Country Status (1)

Country Link
CN (1) CN215249934U (en)

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Granted publication date: 20211221