CN219489768U - System for treating distillers' grains and brewing wastewater of winery - Google Patents
System for treating distillers' grains and brewing wastewater of winery Download PDFInfo
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- CN219489768U CN219489768U CN202223315373.7U CN202223315373U CN219489768U CN 219489768 U CN219489768 U CN 219489768U CN 202223315373 U CN202223315373 U CN 202223315373U CN 219489768 U CN219489768 U CN 219489768U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
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Abstract
The utility model discloses a system for treating distillers' grains and brewing wastewater of a winery, which comprises a water collecting tank, a solid-liquid separator, an IC anaerobic reactor, a two-stage A/O activated sludge device and a coagulation reaction tank which are connected in sequence; the water collecting tank is used for adjusting the pH value of the wastewater, the solid-liquid separator is used for removing suspended matters in the wastewater, the IC anaerobic reactor is used for degrading macromolecular organic matters in the wastewater, the two-stage A/O activated sludge device is used for removing ammonia nitrogen and total nitrogen in the wastewater, and the coagulation reaction tank is used for removing phosphorus-containing substances in the wastewater; the system of the utility model aims at the characteristics of the wastewater in the winery to treat the wastewater, improves the wastewater treatment efficiency and ensures that the quality of the discharged water meets the discharge requirement.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment in winery, and particularly relates to a system for treating distillers' grains and brewing wastewater.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The waste water from winery mainly comes from distillers' grains, and the other is waste water generated in the links of flushing, fermenting, steaming and boiling in the brewing process. Aiming at the characteristics of high concentration of sewage in winery, high temperature, insoluble COD and the like, sewage with different concentrations can be generated in the distillation process. The winery wastewater has the following characteristics: the suspended matters obtained in the wastewater are higher; (2) the wastewater is acidic and has large water quality fluctuation; (3) The obtained macromolecule organic matter in the wastewater has high content and COD and BOD content; (4) The brewing wastewater contains a large amount of ammonia nitrogen and phosphorus-containing substances, the biochemical and physical and chemical treatment process sections slightly fluctuate, the indexes of ammonia nitrogen, total nitrogen and total phosphorus of the wastewater are extremely easy to exceed the standard, and the stability coefficient of the traditional treatment process is low.
Chinese patent No. 108439714a discloses a system and a method for treating waste water of wine making, which are characterized in that anaerobic fermentation is performed on the waste water of wine making, coagulation, sedimentation and filtration are sequentially performed after concentration of organic pollutants is reduced, and finally the treated waste water is pumped into a boiler, but the treatment mode cannot treat the characteristics of waste water of wine mill, so that a system capable of treating the characteristics of waste water of wine mill is needed to improve the treatment efficiency of waste water of wine mill.
Disclosure of Invention
The utility model aims to provide a system for treating distillers' grains and brewing wastewater in a winery, which can improve the wastewater treatment efficiency and ensure that the effluent quality meets the discharge requirement.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a system for treating distillers' grains and brewing wastewater in a winery, including a sump, a solid-liquid separator, a I C anaerobic reactor, a two-stage a/O activated sludge device, and a coagulation reaction tank connected in sequence; the water collecting tank is used for adjusting the pH value of the wastewater, the solid-liquid separator is used for removing suspended matters in the wastewater, the I C anaerobic reactor is used for degrading macromolecular organic matters in the wastewater, the two-stage A/O activated sludge device is used for removing ammonia nitrogen and total nitrogen in the wastewater, and the coagulation reaction tank is used for removing phosphorus-containing substances in the wastewater.
As a further technical solution, an artificial grid is arranged in front of the sump for removing large particle suspensions.
As a further technical scheme, the solid-liquid separator is connected with the collecting tank, and alkali adding pipelines are arranged on the collecting tank and the collecting tank.
As a further technical scheme, the collecting tank is sequentially connected with the primary sedimentation tank, the regulating tank, the distribution tank and the I C anaerobic reactor.
As a further technical scheme, steam pipelines are arranged on the distribution tank and the I C anaerobic reactor, a methane pipeline is further arranged on the I C anaerobic reactor, and the methane pipeline is connected with a methane treatment system.
As a further technical scheme, a mud-water separator is arranged between the I C anaerobic reactor and the two-stage A/O activated sludge device.
As a further technical scheme, a secondary sedimentation tank is arranged between the two-stage A/O activated sludge device and the coagulation reaction tank, and the coagulation reaction tank is connected with a dosing pipeline.
As a further technical scheme, the back of the coagulation reaction tank is sequentially connected with a triple sedimentation tank, a middle water tank, a sand filtration tank and a clean water tank.
As a further technical scheme, the primary sedimentation tank, the secondary sedimentation tank and the triple sedimentation tank are connected with each other through a sludge concentration tank.
As a further technical scheme, the clean water tank is connected with a disinfectant pipeline.
The beneficial effects of the embodiment of the utility model are as follows:
(1) Aiming at the characteristic that suspended matters such as rice hulls in the wastewater of the winery are higher, the wastewater of the winery is removed twice through the artificial grid and the solid-liquid separator, so that suspended matters in the wastewater are effectively reduced, and the removal efficiency is more than 90%.
(2) Aiming at the characteristics of acidity of a wastewater line of a winery and large fluctuation of water quality, the alkali adding pipeline and the liftable cyclone aerator are arranged in the water collecting tank and the collecting tank, so that the pH value of the wastewater can be regulated to be neutral, the effect of water quality and water quantity can be balanced, the favorable operation of a later biological stage process is facilitated, the fluctuation of the water quality and water quantity of the comprehensive wastewater is large, the mixing effect is good after the cyclone aerator is applied, the water quality and water quantity are uniform, and the fluctuation of the water quality is greatly reduced.
(3) Aiming at the characteristic of high macromolecular organic matter content in the wastewater of the winery, a I C anaerobic reactor is arranged as an anaerobic section of a biochemical process, and the deep degradation effect of anaerobic biological strains and COD (chemical oxygen demand) are utilized Cr Has good degradation effect on COD Cr The removal rate can reach more than 90 percent.
(4) Aiming at ammonia nitrogen and total nitrogen in wastewater, a two-stage A/O activated sludge system is adopted, wherein the first-stage A/O is a high-load area, the second-stage A/O is a fine treatment area, the arrangement of the two-stage A/O can ensure the treatment efficiency of the ammonia nitrogen and the total nitrogen, and the impact resistance of the system is also provided.
(5) Aiming at the characteristic of higher phosphorus concentration of wastewater, in order to ensure the quality of effluent, the advanced treatment is provided with a coagulation reaction tank, a dephosphorizing agent, liquid alkali and PAM flocculant are added into the coagulation reaction tank, the phosphorus-containing substances in the wastewater are deeply removed, and meanwhile, an automatic backwashing sand filter tank is arranged to deeply intercept suspended matters and a disinfection dosing device, so that the quality of the final effluent is good.
(6) And (3) carrying out repeated precipitation on sludge generated in the treatment process of the wastewater of the winery through the primary sedimentation tank, the secondary sedimentation tank and the triple sedimentation tank, collecting, treating and sending the sludge into the sludge concentration tank.
(7) The utility model has simple process, low operation cost, strong practicability and easy popularization.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of a system for treating distillers' grain and brewing wastewater in accordance with the present utility model.
The schematic is used only as schematic;
1, a water collecting tank; 2. a solid-liquid separator; 3. a collecting tank; 4. a primary sedimentation tank; 5. an adjusting tank; 6. a distribution tank; 7. i C anaerobic reactor; 8. a mud-water separator; 9. a two-stage A/O activated sludge device; 10. a secondary sedimentation tank; 11. a coagulation reaction tank; 12. a triple sedimentation tank; 13. a middle pool; 14. a sand filtration tank; 15. a clean water tank; 16. a sludge concentration tank; 17. a sludge dewatering tank.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1
In an exemplary embodiment of the present utility model, as shown in fig. 1, there is provided a system for treating distillers' grains and brewing wastewater of a winery, comprising a sump 1, a solid-liquid separator 2, a sump 3, a primary sedimentation tank 4, a regulating tank 5, a distribution tank 6, a I C anaerobic reactor 7, a mud-water separator 8, a two-stage a/O activated sludge device 9, a secondary sedimentation tank 10, a coagulation reaction tank 11, a triple sedimentation tank 12, an intermediate tank 13, a sand filtration tank 14, and a clean water tank 15, which are sequentially connected.
An artificial grid is arranged in front of the water collecting tank 1 and is used for removing large-particle suspended matters such as rice hulls, preventing pipelines from being blocked, and the wastewater after most rice hulls are removed enters the water collecting tank 1. The water collecting tank 1 is used for adjusting the pH value of wastewater, and because the wastewater from a winery is acidic, an alkali adding pipeline is arranged on the water collecting tank 1 and used for conveying alkali liquor in the water collecting tank 1 to adjust the wastewater to be neutral, so that the corrosion of the pipeline is avoided, a cyclone aerator is further arranged in the water collecting tank 1 and connected with a blower, the effect of balancing the water quality and the water quantity can be achieved, and the effluent of the water collecting tank 1 is lifted to the solid-liquid separator 2 through a non-blocking pump.
The solid-liquid separator 2 carries out secondary filtration on the wastewater, separates residual rice hulls in the wastewater, and produces grid slag which flows out to the collecting tank 3, the filtered wastewater automatically flows to the collecting tank 3, an alkali adding pipeline is arranged on the collecting tank 3 and is used for conveying alkali liquor into the collecting tank 3, the pH value of the wastewater is further regulated to be neutral, a rotational flow aerator is arranged in the collecting tank 3 and is connected with a blower, so that the action of water quality and water quantity can be balanced, and the fluctuation of water quality is reduced; the effluent from the collection tank 3 is pumped up to the primary sedimentation tank 4.
In some embodiments of the present example, after suspended matters in the wastewater are removed by the artificial grid and solid separator 2, the suspended matters in the wastewater are reduced from 1000mg/L to 100mg/L and below, and the removal rate is more than 90%.
The primary sedimentation tank 4 is used for further separating suspended matters in the wastewater, the primary sedimentation tank 4 adopts a vertical flow sedimentation system to separate suspended matters in the wastewater, and the supernatant fluid automatically flows to the regulating tank 5; a submersible mixer is arranged in the regulating tank 5 and is used for balancing the water quality and the water quantity of the wastewater, and then the wastewater flows to the distribution tank 6; the water distribution tank 6 is connected with a steam pipeline and an alkali adding pipeline, the temperature of the wastewater is uniformly heated to be within 35+/-3 ℃ by utilizing the steam perforation pipeline, and the pH value of the wastewater is finely regulated in the water distribution tank 6 to be kept between 6.8 and 7.2, so that good water quality is provided for the I C anaerobic reactor 7.
I C anaerobic reactor 7 is used for degrading macromolecular organic matters in the wastewater, and the deep degradation effect of anaerobic microorganism bacteria is utilized in I C anaerobic reactor 7 to remove most organic matters in the wastewater, so that the organic matters are converted into pollutants-free substances such as methane, carbon dioxide, water and the like. The I C anaerobic reactor 7 is added with granular sludge with better activity, the domestication period is short, the starting is quick, and the effluent quality is good. The anaerobic effluent of the I C anaerobic reactor 7 flows to the mud-water separator 8, the mud-water separator 8 is used for intercepting and screening the granular sludge possibly coming out along with the wastewater, the loss of the anaerobic sludge is prevented, the intercepted anaerobic sludge is sent to the I C anaerobic reactor 7 again for use, and the wastewater flows to the two-stage A/O activated sludge device 9.
In some embodiments of the present example, I C anaerobic reactor 7 is used as the anaerobic section of the biochemical process with a volumetric load of 8.5kg/m 3 D, utilizing deep degradation of anaerobic organism strain, COD Cr Has good degradation effect, and the COD of the inflow water of the I C anaerobic reactor Cr 8000-10000mg/L, COD of effluent Cr Can be reduced to 800mg/L or below, the removal rate can reach 90% or above, and the effect is good.
The two-stage A/O activated sludge device 9 is used for removing ammonia nitrogen and total nitrogen in the wastewater, and in the two-stage A/O activated sludge device 9, pollutants in the wastewater are degraded into CO by utilizing the decomposition effect of aerobic bacteria 2 And water, thereby eliminating the pollution of the wastewater. And the tail end wastewater is refluxed to the front end of the tank A by adopting the reflux mode of the nitrifying liquid at the tail end of the tank O, so that the nitrifying-denitrifying process is realized, the ammonia nitrogen removal efficiency is ensured, and the effluent of the two-stage A/O activated sludge device 9 automatically flows to the secondary sedimentation tank 10.
In some implementations of this embodiment, the primary a/O is a high load zone, the secondary a/O is a finishing zone, and the arrangement of the two-stage a/O can ensure the treatment efficiency of ammonia nitrogen and total nitrogen, while also providing the impact resistance of the system.
The secondary sedimentation tank 10 is used for separating a mud-water mixture, the secondary sedimentation tank 10 adopts a vertical flow sedimentation tank to separate the mud-water mixture, the sludge flows back to the front end of the tank A of the two-stage A/O activated sludge device 9, the residual sludge is discharged to the sludge concentration tank 16, the supernatant automatically flows to the coagulation reaction tank 11, the sludge in the sludge concentration tank 16 enters a sludge dewatering tank 17 after being concentrated, and sludge cakes are formed and transported outwards after being dewatered in the sludge dewatering tank 17.
The coagulation reaction tank 11 is used for removing phosphorus-containing substances in wastewater, the coagulation reaction tank 11 is connected with a dosing pipeline, a dephosphorizing agent, liquid alkali and PAM flocculant are sequentially added into the coagulation reaction tank 11 through the dosing pipeline, phosphorus-containing pollutants in wastewater are separated out in a chemical floccule form and enter a triple sedimentation tank 12, the floccule is settled in the triple sedimentation tank 12, and supernatant fluid automatically flows to an intermediate water tank 13 for temporary storage.
In this embodiment, the primary sedimentation tank 4, the secondary sedimentation tank 10 and the tertiary sedimentation tank 12 are all connected with the sludge concentration tank 16 through sludge pipelines, and sludge generated by the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank is concentrated through the sludge concentration tank.
The sewage in the middle water tank 13 is pumped to the sand filter tank 14 by a pump, and the sewage is subjected to deep filtration of the sand filter tank 14, so that the removal efficiency of suspended matters is ensured. The sand filter 14 adopts an automatic back flushing mode to prevent the blockage of the filler. The sand filter tank 14 discharges water to the clean water tank 15, the clean water tank 15 is connected with a disinfectant pipeline, and sodium hypochlorite disinfectant is added into the clean water tank 15 through the disinfectant pipeline, so that the discharged water is ensured to reach the discharge standard.
In some implementations of this embodiment, the effluent quality of the clean water basin 15 is: COD is less than or equal to 30mg/L and BOD 5 ≤6mg/L，NH 3- N is less than or equal to 1.5mg/L, SS is less than or equal to 10mg/L, and the effluent discharge requirement is met.
The system for treating distillery distillers' grains and brewing wastewater of the embodiment is used for treating the distillery wastewater according to the characteristics of the distillery wastewater, firstly removing suspended matters in the wastewater, then degrading macromolecular organic matters in the wastewater, removing ammonia nitrogen and total nitrogen in the wastewater, and finally removing phosphorus-containing substances in the wastewater, so that the final distillery wastewater reaches the discharge standard.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. A system for treating distillers' grains and brewing wastewater of a winery is characterized by comprising a water collecting tank, a solid-liquid separator, an IC anaerobic reactor, a two-stage A/O activated sludge device and a coagulation reaction tank which are connected in sequence; the water collecting tank is used for adjusting the pH value of the wastewater, the solid-liquid separator is used for removing suspended matters in the wastewater, the IC anaerobic reactor is used for degrading macromolecular organic matters in the wastewater, the two-stage A/O activated sludge device is used for removing ammonia nitrogen and total nitrogen in the wastewater, and the coagulation reaction tank is used for removing phosphorus-containing substances in the wastewater;
the solid-liquid separator is connected with the collecting tank, and alkali adding pipelines are arranged on the collecting tank and the collecting tank.
2. The system for treating distillers' grain and brewing wastewater of claim 1, wherein an artificial grid is provided prior to the sump for removing large particle suspended matter.
3. The system for treating distillers' grains and brewing wastewater of a winery according to claim 1, wherein the collection tank is sequentially connected with the primary sedimentation tank, the regulating tank, the distribution tank and the IC anaerobic reactor.
4. The system for treating distillers' grains and brewing wastewater of a winery according to claim 3, wherein steam pipelines are arranged on the water distribution tank and the IC anaerobic reactor, a methane pipeline is also arranged on the IC anaerobic reactor, and the methane pipeline is connected with a methane treatment system.
5. The system for treating distillers' grains and brewing wastewater of claim 1, wherein a sludge-water separator is disposed between the IC anaerobic reactor and the two-stage a/O activated sludge device.
6. The system for treating distillers' grains and brewing wastewater of a winery according to claim 1, wherein a secondary sedimentation tank is arranged between the two-stage A/O activated sludge device and a coagulation reaction tank, and the coagulation reaction tank is connected with a dosing pipeline.
7. The system for treating distillers' grains and brewing wastewater of a winery according to claim 6, wherein the triple sedimentation tank, the middle water tank, the sand filter tank and the clean water tank are sequentially connected at the back of the coagulation reaction tank.
8. The system for treating distillers' grains and brewing wastewater of claim 7, wherein the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank are all connected with the sludge concentration tank.
9. The system for treating distillers' grain and brewing wastewater of claim 7, wherein said clean water basin is connected to a disinfectant conduit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223315373.7U CN219489768U (en) | 2022-12-07 | 2022-12-07 | System for treating distillers' grains and brewing wastewater of winery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223315373.7U CN219489768U (en) | 2022-12-07 | 2022-12-07 | System for treating distillers' grains and brewing wastewater of winery |
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| CN219489768U true CN219489768U (en) | 2023-08-08 |
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| CN202223315373.7U Active CN219489768U (en) | 2022-12-07 | 2022-12-07 | System for treating distillers' grains and brewing wastewater of winery |
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