Wine brewing wastewater conversion system

Abstract

The wine brewing wastewater conversion system provided by the utility model comprises a closed reaction zone, a filtering device and a liquid circulation system. The closed reaction zone receives wine brewing wastewater and corresponding reactants and active matters, the pH value of the wine brewing wastewater is adjusted to a proper interval, organic matters in the wine brewing wastewater are converted by using the active matters, and then the converted clear liquid is fed into the reaction zone by circularly supplementing the reactants and the active matters in an overflowing and filtering manner. Through uninterrupted circulating conversion, muddy water and sediment which are rich in carbon and nitrogen elements and can be converted by a conventional high-concentration organic biochemical treatment mode are obtained, and harmless conversion is achieved by performing conventional high-concentration organic biochemical treatment on the muddy water and sediment. The pH of the reaction bin is adjusted through hydrogen peroxide and ozone, the microbial conversion efficiency can be improved, the conversion problem of the wine brewing wastewater is solved, sludge bulking is controlled through a liquid circulation system, COD parameters of effluent are reduced, and harmless conversion is achieved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to a brewing wastewater conversion system. Background Technology

[0002] After microbial fermentation in brewing, the wastewater produced in the brewing container, consisting of grains, bran, water, koji, heat, acid, lees, fermentation pits, and other substances, contains a large amount of organic matter. In existing technologies, the C / P ratio of the brewing wastewater can reach 250. Traditional activated sludge processes are prone to sludge bulking, and the treated effluent has a high COD, making it difficult to meet conversion standards. Furthermore, the large amount of acid and alcohol present in the brewing wastewater severely affects the treatment activity of active substances such as polysaccharide bacteria.

[0003] Therefore, there is an urgent need for a device system capable of harmlessly converting brewing wastewater. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application aims to provide a brewing wastewater conversion system. This application utilizes hydrogen peroxide and ozone to adjust the pH of the reaction chamber, thereby promoting microbial conversion efficiency and solving the problem of brewing wastewater conversion.

[0005] To achieve the above objectives, this application provides a brewing wastewater conversion system, comprising: a closed reaction zone for receiving brewing wastewater and corresponding reactants and active ingredients; a filtration device located outside the closed reaction zone for receiving overflow from the closed reaction zone and filtering the overflow; a liquid circulation system connected to the bottom of the filtration device for adding brewing wastewater and corresponding reactants and active ingredients to the filtrate and circulating it into the closed reaction zone; and a sludge discharge pipe for receiving filtered sludge and inputting the sludge into a conventional high-concentration organic biochemical treatment system.

[0006] Optionally, in any of the above-described brewing wastewater conversion systems, the closed reaction zone is located in the inner tank, and the filtration device is located in the outer tank. The inner tank is enclosed within the outer tank, and an overflow pipe is provided at the top of the inner tank to input the overflow from the top of the inner tank into the outer tank.

[0007] Optionally, in any of the brewing wastewater conversion systems described above, a filtration device is provided below the overflow pipe between the inner wall and the outer wall of the inner tank. The filtration device includes at least one layer of filter guide rings that slope downwards from the center.

[0008] Optionally, in any of the above-described brewing wastewater conversion systems, the inner tank includes: a circulating water collection area, the top of which is connected to the reaction area, and the inner tank is supported by a filter screen within the outer tank. The bottom of the circulating water collection area is also provided with a drain pipe connected to a liquid circulation system to discharge the filtrate from the bottom of the circulating water collection area into the liquid circulation system. The bottom of the reaction area is provided with an inlet pipe, which connects to and receives the brewing wastewater and corresponding reactants and active substances provided by the liquid circulation system. A mixing device is provided in the middle of the reaction area for mixing the brewing wastewater and the solids therein. The overflow pipe includes several pipes connected to the closed top of the reaction area.

[0009] Optionally, in any of the brewing wastewater conversion systems described above, the circulating water collection zone and the reaction zone are separated by a bottom-sealing filter layer, the pore size of which is less than 2 mm.

[0010] Optionally, in any of the above-described brewing wastewater conversion systems, the inlet pipe at the bottom of the reaction zone is arranged radially, and its inlet hole is opened at the top of the radial pipe to spray brewing wastewater and corresponding reactants and active substances into the mixing device above.

[0011] Optionally, in any of the above-described brewing wastewater conversion systems, the mixing device includes: a support frame with a rotating shaft in the middle, and cutting blades arranged laterally in four directions on the rotating shaft; a brush rod connected to the end of the cutting blades; and a brush blade fixed to the outside of the brush rod to abut against and brush away the sediment on the inner wall of the inner tank.

[0012] Optionally, in any of the brewing wastewater conversion systems described above, the sludge discharge pipe is connected to the bottom of the outer tank to receive sludge and water from outside the filter screen around the circulating water collection area.

[0013] Optionally, in any of the brewing wastewater conversion systems described above, the conventional high-concentration organic biochemical treatment system also includes periodically replenishing and cleaning the sediment on the self-filtering guide ring, the bottom filter layer, and the filter screens around the circulating water collection area.

[0014] Compared with existing solutions, this application has the following technical advantages:

[0015] The brewing wastewater conversion system provided in this application includes a closed reaction zone, a filtration device, and a liquid circulation system. The closed reaction zone receives brewing wastewater along with corresponding reactants and active ingredients, adjusts the pH of the wastewater to a suitable range, utilizes the active ingredients to convert the organic matter within it, and then recirculates the converted clarified liquid through overflow and filtration to replenish the reactants and active ingredients back into the reaction zone. Through continuous circulation and conversion, carbon- and nitrogen-rich sludge and sediment are obtained, which can be converted by conventional high-concentration organic biochemical treatment to achieve harmless conversion. This application uses hydrogen peroxide and ozone to adjust the pH of the reaction chamber, which can promote microbial conversion efficiency, solve the conversion problem of brewing wastewater, and control sludge bulking through the liquid circulation system, reducing the COD parameter of the effluent and achieving harmless conversion.

[0016] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the brewing wastewater conversion system according to this application;

[0019] Figure 2 This is a schematic diagram of the stirring unit in the system of this application.

[0020] In the diagram, 1 represents the outer tank; 2 represents the reaction zone; 3 represents the inner tank; 4 represents the bottom-sealed filter layer; 5 represents the circulating water collection zone; 6 represents the filter guide ring; 7 represents the mixing device; 71 represents the support frame; 72 represents the brush rod; and 73 represents the brush plate. Detailed Implementation

[0021] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0022] The meaning of "and / or" as used in this application includes both situations where each exists alone or both exist simultaneously.

[0023] In this application, "inner" and "outer" refer to the direction from the outer tank to the mixing device in the inner tank relative to the brewing wastewater conversion system itself, and vice versa; rather than a specific limitation on the device structure of this application.

[0024] The term "connection" as used in this application can mean a direct connection between components or an indirect connection between components through other components.

[0025] The terms "upper" and "lower" as used in this application refer to the direction from the circulating water mobile area to the overflow pipe when the user is facing the brewing wastewater conversion system, which is considered "upper" and vice versa, and are not a specific limitation on the device mechanism of this application.

[0026] The brewing wastewater conversion system provided in this application includes:

[0027] A closed reaction zone that receives brewing wastewater as well as corresponding reactants and active substances;

[0028] A filtration device is installed outside the closed reaction zone to receive the overflow from the closed reaction zone and filter the overflow;

[0029] A liquid circulation system is connected to the bottom of the filter device. After adding brewing wastewater and corresponding reactants and active ingredients to the filtrate, it is circulated into the closed reaction zone.

[0030] The sludge discharge pipe receives the filtered sludge and water, and then inputs the sludge and water into a conventional high-concentration organic biochemical treatment system.

[0031] This application utilizes a closed reaction zone to mix and react brewing wastewater, reactants, and active ingredients. The supernatant is extracted through a filtration device and replenished with reactants for continuous reaction. This repetitive circulation stabilizes the pH of the brewing wastewater to an environment suitable for the biological activity of polysaccharide bacteria. Furthermore, the filtration through each layer allows for the removal of organic matter from the wastewater for conventional high-concentration organic biochemical treatment methods, such as composting or insect-based conversion. In conventional high-concentration organic biochemical treatment, brewing wastewater, due to its high carbon-to-nitrogen ratio, rich aerobic bacteria, and low salt content, can be effectively mixed with grease-free kitchen waste to improve the degradation efficiency and obtain a fertilizer product with a balanced carbon-to-nitrogen ratio.

[0032] Specific reference Figure 1 As shown, the brewing wastewater conversion system of this application is provided with inner and outer double tanks. The closed reaction zone is located in the inner tank 3, and the filtration device is located in the outer tank 1. The inner tank 3 is enclosed in the outer tank 1, and the top of the inner tank 3 is provided with an overflow pipe 31 to input the overflow from the top of the inner tank 3 into the outer tank 1.

[0033] Among them, a filter device is provided below the overflow pipe 31 between the inner wall of the inner tank 3 and the outer wall of the inner tank 3. The filter device includes at least one layer of filter guide ring 6 that slopes downward from the center outward.

[0034] The inner tank 3 is configured with three layers: upper, middle, and lower.

[0035] The bottom circulating water collection area 5 is connected to the top of the reaction area 2 located in the middle of the inner tank. The circulating water collection area 5 is supported by a filter screen in the outer tank 1. The bottom of the circulating water collection area 5 is also provided with a drain pipe connected to the liquid circulation system to discharge the filtered liquid at the bottom of the circulating water collection area 5 into the liquid circulation system.

[0036] A water inlet pipe is provided at the bottom of the reaction zone 2, which is connected to and receives brewing wastewater and corresponding reactants and active substances provided by the liquid circulation system; a mixing device 7 is provided in the middle of the reaction zone 2 for mixing brewing wastewater and solid substances therein;

[0037] An overflow pipe 31 is provided on the upper layer, including several pipes connected to the closed top of the reaction zone 2.

[0038] After each cleaning of the filter sediment, brewing impurities are added to reaction zone 2. The two tanks are then pumped to a low-pressure state, and brewing wastewater is introduced through radial inlet pipes laid at the bottom of the brewing impurities. The wastewater then permeates the impurities through inlet holes at the top of these pipes. A mixing device 7 installed within the brewing impurities sprays and mixes the brewing wastewater containing hydrogen peroxide and ozone with the remaining solid impurities from the brewing process. This provides a suitable transformation environment for the polysaccharide bacteria active substances added to the wastewater, allowing them to transform the mixture in reaction zone 2. The hydrogen peroxide neutralizes the brewing wastewater while simultaneously removing brewing bacteria, preventing competition for nutrients during the transformation process. The ozone is converted into oxygen under mixed conditions and inhibits anaerobic microorganisms.

[0039] Initially, during the initial wastewater influx, brewing impurities clog the bottom-sealed filter layer 4 (with pores smaller than 2mm) between the circulating water collection zone 5 and the reaction zone 2, causing the liquid level in the reaction zone to gradually rise. As the active substances in the reaction zone gradually decompose and transform the solid organic matter, the particles in the reaction zone gradually become finer, seeping through the bottom-sealed filter layer 4 and entering the liquid circulation system to further regulate the reaction environment. Once the reaction conditions in the reaction zone stabilize, the liquid level will rise to the height of the overflow pipe 31 due to the gradual increase in brewing wastewater. At this point, the supernatant is left through the overflow pipe and, guided by the upper and lower filter guide rings 6, accumulates in the bottom peripheral area of ​​the outer tank, thus entering the sludge discharge pipe as a carbon source for the external conventional high-concentration organic biochemical treatment system. The sludge discharge pipe is generally connected to the bottom of the outer tank 1 to receive the sludge and water outside the filter screen around the circulating water collection zone 5.

[0040] In the reaction zone of this application, the mixing device 7 may be configured to include: Figure 2 Shown:

[0041] Support frame 71, with a rotating shaft in the middle, and cutting blades connected laterally in four directions radiating from the rotating shaft;

[0042] Brush rod 72, which is connected to the end of the cutting blade;

[0043] Brush 73, which is fixed to the outside of brush rod 72, abuts against and brushes away the sediment on the inner wall of inner tank 3 to prevent it from clogging the device;

[0044] The support frame is driven by a motor to move the cutting blades to mix the solid matter in the reaction zone. Combined with the water flow from the bottom radial pipes and the top water inlet, the water is pushed upwards, preventing impurities from settling at the bottom of the pool, increasing the oxygenation area, promoting short-range nitrification, and accelerating the decomposition of organic matter.

[0045] In a conventional high-concentration organic biochemical treatment system, the regularly replenished substances include: kitchen waste with filtered grease, sediment removed from the filter guide ring 6, the bottom filter layer 4, and the filter screens around the circulating water collection area 5, as well as the circulating wastewater in the liquid circulation system of this application. The circulating wastewater provides bioactive substances for the conventional high-concentration organic biochemical treatment, regulates the salt and water content of the treated substances, and promotes the conversion of nitrogen from kitchen waste into organic fertilizer. The sediment obtained in each area of ​​the system provides carbon sources of different particle sizes, allowing the biomass to regulate its carbon-nitrogen conversion rate through different particle sizes during the conventional high-concentration organic biochemical treatment, maintaining a relatively balanced reaction level. This ensures that the temperature and reaction conditions of the conventional high-concentration organic biochemical treatment process are relatively stable, thereby improving the conversion efficiency of the conventional high-concentration organic biochemical treatment process.

[0046] It will be understood by those skilled in the art that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A brewing wastewater conversion system, characterized by, The application relates to a high-concentration organic biochemical treatment system for distillery wastewater, which comprises the following parts: a closed reaction zone which receives distillery wastewater and corresponding reaction agents and active substances; a filtering device which is arranged outside the closed reaction zone, receives overflow of the closed reaction zone, and filters the overflow; a liquid circulating system which is connected to the bottom of the filtering device, and circulates the filtered liquid into the closed reaction zone after adding distillery wastewater and corresponding reaction agents and active substances into the filtered liquid; a sludge discharge pipe which receives the filtered sludge water and inputs the sludge water into a conventional high-concentration organic biochemical treatment system.

2. The brewing wastewater conversion system of claim 1, wherein, The closed reaction zone is arranged in an inner tank (3), and the filtering device is arranged in an outer tank (1), wherein the inner tank (3) is arranged in the outer tank (1) in a sealed mode, an overflow pipe (31) is arranged at the top of the inner tank (3), and the overflow at the top of the inner tank (3) is input into the outer tank (1).

3. The brewing wastewater conversion system of claim 2, wherein, A filtering device is further arranged between the inner wall of the inner tank (3) and the outer wall of the inner tank (3) below the overflow pipe (31), and the filtering device comprises at least one filtering guide ring (6) which is inclined from the center to the outside and downward.

4. The brewing wastewater conversion system of claim 2, wherein, The inner tank (3) comprises: a circulating water collecting area (5) which is connected to the reaction zone (2) at the top, is supported by a filtering screen in the outer tank (1) around the periphery, and is further provided with a drain pipe which is connected to the liquid circulating system and discharges the filtered liquid at the bottom of the circulating water collecting area (5) into the liquid circulating system; a water inlet pipe which is arranged at the bottom of the reaction zone (2), is connected to and receives distillery wastewater and corresponding reaction agents and active substances provided by the liquid circulating system, and is arranged in a radial mode; and the overflow pipe (31) comprises a plurality of pipelines which are connected to the closed top of the reaction zone (2).

5. The brewing wastewater conversion system of claim 4, wherein, The circulating water collecting area (5) and the reaction zone (2) are separated by a bottom sealing filter layer (4) with a pore size of less than 2 mm.

6. The brewing wastewater conversion system of claim 4, wherein, The water inlet pipe at the bottom of the reaction zone (2) is arranged in a radial mode, and the water inlet holes are arranged at the top of the radial pipelines and spray distillery wastewater and corresponding reaction agents and active substances to the mixing device (7) upward.

7. The brewing wastewater conversion system of claim 4, wherein, The mixing device (7) comprises: a support frame (71) which is provided with a rotating shaft in the middle, and is provided with transversely connected cutting blades which are arranged in four directions; a brush rod (72) which is connected to the end of the cutting blade; a brush piece (73) which is fixed to the outside of the brush rod (72), abuts against and brushes off the deposits on the inner wall of the inner tank (3).

8. The brewing wastewater conversion system of claim 4, wherein, The sludge discharge pipe is connected to the bottom of the outer tank (1) to receive the sludge water outside the filtering screen around the circulating water collecting area (5).

9. The brewing wastewater conversion system of claim 8, wherein, The conventional high-concentration organic biochemical treatment system is further provided with a cleaning device which regularly supplements and cleans the deposits on the filtering guide ring (6), the bottom sealing filter layer (4), the filtering screen around the circulating water collecting area (5).

Images