A pure grain liquor production wastewater efficient purification treatment equipment

Abstract

The utility model relates to the technical field of liquor production wastewater treatment especially, it is a kind of pure grain liquor production wastewater efficient purification treatment equipment, its whole process adopts assembled modularization design, its outside adopts welding combination anticorrosive coating, satisfies the overall bearing and deformation resistance demand of device, compared with traditional concrete structure installation period shortens 70%, can be flexibly combined according to small and medium-sized liquor enterprises land requirement, solve the problem that existing system occupies large, installation is difficult, secondly, through the cooperation of pretreatment module, biochemical module and depth processing module, improve the treatment effect to sewage, further, through emergency processing module, sudden excessive sewage or excessive water in liquor production process is handled, including pretreatment module, still include: biochemical module, emergency processing module and sludge treatment module.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment in liquor production, and in particular to a high-efficiency purification and treatment device for wastewater from pure grain liquor production. Background Technology

[0002] Due to the unique brewing process, the wastewater from the production of pure grain liquor has a complex composition and significant fluctuations in pollutant load. Its CODCr, BOD5, SS, NH3-N, TP, and TN contents are as high as 15000 mg / L, 7500 mg / L, 1000 mg / L, 200 mg / L, 150 mg / L, and 300 mg / L, respectively, making it far more difficult to treat than ordinary industrial wastewater.

[0003] Existing treatment equipment mostly uses common technologies such as activated sludge process and conventional anaerobic-aerobic process, which have the following shortcomings: 1. The pretreatment method was not adapted to the characteristics of brewing wastewater, which has a high carbon-to-nitrogen ratio and contains recalcitrant byproducts. The simple pretreatment resulted in a suspended solids removal rate of less than 30%, a decrease in the activity of sludge in the biological system, and an effluent compliance rate of less than 70%. 2. The decentralized layout means that a single set of equipment occupies more than 500m², and the operating cost per ton of water is 8-12 yuan, which is beyond the affordability of small and medium-sized enterprises. 3. The system lacks a concentration fluctuation buffer mechanism and has weak shock resistance. When the influent COD fluctuates by ±20%, the system is prone to failure and recovery takes more than 72 hours, affecting continuous production. Therefore, there is an urgent need for a high-efficiency purification and treatment equipment for wastewater from pure grain liquor production to improve the above-mentioned problems. Utility Model Content

[0004] To address the aforementioned technical issues, this utility model provides a fully modular, prefabricated design with an external welded anti-corrosion coating, meeting the overall load-bearing and deformation resistance requirements of the device. This design shortens the installation cycle by 70% compared to traditional concrete structures and allows for flexible configuration based on the land needs of small and medium-sized liquor enterprises, solving the problems of large footprint and difficult installation associated with existing systems. Furthermore, the combination of pretreatment, biochemical, and deep treatment modules enhances wastewater treatment efficiency. Finally, an emergency treatment module addresses sudden exceedances of wastewater or excessive water flow during liquor production, making this a highly efficient purification and treatment device for pure grain liquor production wastewater.

[0005] This utility model discloses a high-efficiency purification and treatment device for wastewater from pure grain liquor production, including a pretreatment module; and further including: The pretreatment module includes a bar screen water collection area, a primary sedimentation area, and a regulating area, and is integrated using a prefabricated, corrosion-resistant carbon steel structure. The biochemical module includes an EGSB anaerobic reactor and a two-stage anaerobic + AO unit, and is integrated using a prefabricated, corrosion-resistant carbon steel structure. The deep processing module includes a sodium persulfate advanced oxidation zone, a coagulation sedimentation tank, and a Pasteur metering tank to effectively remove recalcitrant COD and residual total phosphorus. The emergency response module includes an accident zone, which is connected to the grid collection area via inlet and outlet pipes. It is used to handle sudden excessive wastewater or excessive water flow during the liquor production process. The sludge treatment module is equipped with a sludge storage tank and a sludge dewatering machine, and the sludge discharged from the biochemical treatment module and the deep treatment module is processed. The entire process adopts a prefabricated modular design, with its exterior using welding combined with an anti-corrosion coating to meet the overall load-bearing and deformation resistance requirements of the device. Compared with traditional concrete structures, the installation cycle is shortened by 70%. It can be flexibly combined according to the land use needs of small and medium-sized liquor enterprises, solving the problems of large land area and difficult installation of existing systems. Secondly, the treatment effect of wastewater is improved through the cooperation of pretreatment modules, biochemical modules and deep treatment modules. Furthermore, the emergency treatment module can treat wastewater or excessive water volume that suddenly exceeds the standard during the liquor production process.

[0006] Preferably, the screen collection area is equipped with a 70° inclined mechanical fine screen with a 5mm gap, and a collection buffer zone is set downstream of the screen, with a corrosion-resistant submersible sewage pump with a flow rate adapted to the requirements; the screen is configured to accurately intercept floating objects, and the corrosion-resistant submersible sewage pump with a flow rate adapted to the requirements can stably lift the wastewater to the primary sedimentation zone.

[0007] Preferably, the primary sedimentation zone adopts a simplified vertical flow integrated structure with only a central cylinder. The central cylinder is a conical guide structure that is wider at the top and narrower at the bottom, and a conical guide hole is opened at the bottom of the central cylinder. This can guide the wastewater to form a uniform and stable upward flow, enhance the directional sedimentation of suspended solids, avoid the risk of sludge activity decay in the subsequent anaerobic tank from the source, and then allow the treated wastewater to flow into the adjustment zone by gravity through the conical guide hole.

[0008] Preferably, the bottom of the regulating zone adopts a distributed water distribution structure using UPVC air pipes, and two liftable submersible sewage pumps are also installed at the bottom of the regulating zone in a diagonally distributed layout. By replacing traditional mechanical stirring with air disturbance, efficient and uniform mixing of water quality and quantity is achieved, providing a solid foundation for the stability of sludge activity and the achievement of reaction efficiency standards in the subsequent biochemical module. Furthermore, the diagonally distributed liftable submersible sewage pumps ensure that wastewater in the regulating zone is extracted without dead zones and stably lifted to the EGSB reactor.

[0009] Preferably, the EGSB anaerobic reactor is equipped with an integrated, uniform multi-point water distribution system and an end-of-pipe sedimentation selective reflux device. The water distribution system uses water distribution pipes, with one water distribution point set every 2m² to achieve uniform distribution of wastewater throughout the entire area. The EGSB anaerobic reactor is also equipped with a three-phase separator, and a triangular weir is set at the effluent outlet of the EGSB anaerobic reactor. Through the water distribution system, uniform distribution of wastewater throughout the entire area is achieved, avoiding local organic matter accumulation. The sedimentation selective reflux device can directionally return the separated sludge to the sludge bed reaction zone, while efficiently intercepting flocculent sludge, completely avoiding the problem of treatment efficiency reduction caused by its entry into the subsequent aerobic system. The methane gas generated by the three-phase separator is transported to the biogas combustion device. After precise water collection through the triangular weir at the effluent outlet, the effluent flows by gravity to the anaerobic zone.

[0010] Preferably, the anaerobic zone of the anaerobic + two-stage AO unit is equipped with a submersible mixer made of SS304 material, and the mixer is installed diagonally symmetrically to form a closed-loop annular water flow disturbance. The anaerobic + two-stage AO unit has two AO zones. The first and second stage A zones are equipped with submersible mixers, and the first and second stage O zones are equipped with liftable tubular aerators. The second stage O zone is equipped with a tubular return pump. The center of the second stage O zone is equipped with an inverted triangular effluent trough. The bottom of the trough is directly connected to the deep treatment module through a corrosion-resistant effluent pipe and is equipped with a stainless steel rectangular sedimentation module to achieve mud-water separation.

[0011] Preferably, the sodium persulfate advanced oxidation zone adopts a modular assembled square structure made of composite modified anti-corrosion material, and is equipped with a high-precision ORP online monitoring instrument and a smart pH meter to realize real-time sampling of dual parameters and deviation linkage control. The sodium persulfate advanced oxidation zone is also equipped with a paddle mixer to ensure uniform mixing of the reagent and the liquid to be treated without dead corners.

[0012] Preferably, the coagulation sedimentation tank is divided into a neutralization zone, a coagulation zone, a flocculation zone, and a sedimentation zone.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: the entire process adopts a prefabricated modular design, and its exterior is welded and coated with an anti-corrosion coating, which meets the overall load-bearing and deformation resistance requirements of the device. The installation cycle is shortened by 70% compared with traditional concrete structures. It can be flexibly combined according to the land use needs of small and medium-sized liquor enterprises, solving the problems of large land area and difficult installation of existing systems. Secondly, the treatment effect of wastewater is improved through the cooperation of pretreatment modules, biochemical modules and deep treatment modules. Furthermore, the emergency treatment module can treat wastewater or water exceeding the standard in the process of liquor production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] The attached diagram is labeled as follows: 1. Pretreatment module; 2. Biochemical module; 3. Advanced treatment module; 4. Emergency treatment module; 5. Sludge treatment module; 11. Bar screen collection area; 12. Primary sedimentation area; 13. Adjustment area; 21. EGSB anaerobic reactor; 22. Anaerobic + two-stage AO unit; 31. Sodium persulfate advanced oxidation zone; 32. Coagulation sedimentation tank; 33. Parshall flume; 41. Accident zone; 51. Sludge storage tank; 52. Sludge dewatering machine. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] like Figure 1 As shown, a high-efficiency purification and treatment device for wastewater from pure grain liquor production includes a pretreatment module 1; and further includes: The pretreatment module 1 includes a grid water collection area 11, a primary sedimentation area 12, and a regulating area 13, and is integrated using a prefabricated anti-corrosion carbon steel structure. Biochemical module 2, which includes an EGSB anaerobic reactor 21 and an anaerobic + two-stage AO unit 22, is integrated using a prefabricated, corrosion-resistant carbon steel structure. The deep processing module 3 includes a sodium persulfate advanced oxidation zone 31, a coagulation sedimentation tank 32, and a Pasteur metering tank 33, which effectively removes recalcitrant COD and residual total phosphorus. Emergency treatment module 4 includes an accident zone 41, which is connected to the grid water collection area 11 via an inlet pipe and a return pipe. It is used to treat sudden excessive sewage or excessive water during the production of liquor. The sludge treatment module 5 includes a sludge storage tank 51 and a sludge dewatering machine 52, and the sludge discharged from the biochemical treatment module and the deep treatment module is processed. The screen collection area 11 is equipped with a 70° inclined mechanical fine screen with a 5mm gap. A water collection buffer is set downstream of the screen, and a corrosion-resistant submersible sewage pump with a flow rate appropriate is provided. The initial settling zone 12 adopts a simplified vertical flow integrated structure with only a central cylinder. The central cylinder is a conical flow guide structure that is wider at the top and narrower at the bottom, and a conical flow guide hole is opened below the central cylinder. The bottom of the regulating zone 13 adopts a distributed water distribution structure with UPVC air pipes. Two liftable submersible sewage pumps are also installed at the bottom of the regulating zone 13, and they are installed in a diagonal distributed layout. The EGSB anaerobic reactor 21 is equipped with an integrated uniform multi-point water distribution system and an end sedimentation selective reflux device. The water distribution system uses water distribution pipes, with one water distribution point set up every 2m² to achieve uniform distribution of wastewater throughout the entire area. The EGSB anaerobic reactor 21 is also equipped with a three-phase separator, and a triangular weir is set at the effluent outlet of the EGSB anaerobic reactor 21. The anaerobic zone of the anaerobic + two-stage AO unit 22 is equipped with a submersible mixer made of SS304 material, and it is installed diagonally symmetrically to form a closed-loop annular water flow disturbance. The two-stage AO zone in the anaerobic + two-stage AO unit 22 is equipped with submersible mixers in the first and second stage A zones, liftable tubular aerators in the first and second stage O zones, and tubular return pumps in the second stage O zone. The center of the second stage O zone is equipped with an inverted triangular effluent trough, and the bottom of the trough is directly connected to the deep treatment module through an anti-corrosion effluent pipe. A stainless steel rectangular sedimentation module is also installed to achieve mud-water separation. The sodium persulfate advanced oxidation zone 31 adopts a modular assembled square structure with composite modified anti-corrosion material. The sodium persulfate advanced oxidation zone 31 is equipped with a high-precision ORP online monitoring instrument and a smart pH meter to realize real-time sampling of dual parameters and deviation linkage control. The sodium persulfate advanced oxidation zone 31 is also equipped with a paddle mixer to ensure that the reagent and the liquid to be treated are mixed evenly without dead corners. The coagulation sedimentation tank 32 is divided into a neutralization zone, a coagulation zone, a flocculation zone, and a sedimentation zone.

[0018] Example I. Preprocessing Module: The pretreatment module is connected sequentially to the bar screen collection area, the primary sedimentation area and the regulating area. It adopts an integrated prefabricated anti-corrosion carbon steel structure, which takes into account both convenient installation and resistance to corrosion and durability of liquor wastewater, and solves the problems of traditional pretreatment with dispersed layout and poor corrosion resistance. The screen collection area is equipped with a 70° inclined mechanical fine screen with a 5mm mesh to accurately intercept floating and suspended matter such as rice husk fibers and hard plastics, with an interception efficiency of over 95%, preventing subsequent equipment blockage from the source; a collection buffer zone is set up downstream of the screen, equipped with a corrosion-resistant submersible sewage pump with a flow rate appropriate to stably lift the wastewater to the primary sedimentation zone. Primary sedimentation zone: Employs a simplified vertical flow integrated structure with only an SS304 material central cylinder. The SS304 material central cylinder is optimized into a conical guide structure that is wider at the top and narrower at the bottom (upper diameter 800mm, lower diameter 400mm, height 1.2m), which can guide the wastewater to form a uniform and stable upward flow, enhance the directional sedimentation of suspended solids such as rice husk fragments and colloidal particles, and achieve a suspended solids removal rate of 40%-50%, thus avoiding the risk of sludge activity decay in the subsequent anaerobic tank from the source. Conical guide holes (300mm diameter, 60° taper) are opened at the bottom of the tank corresponding to the position of the central cylinder, and the treated wastewater flows into the conditioning zone by gravity. Adjustment Zone: Designed precisely for 10-15 hours hydraulic retention time to address concentration fluctuations caused by batch switching of pure grain liquor wastewater, the bottom adopts a distributed water distribution structure using UPVC air pipes. Air agitation replaces traditional mechanical stirring, achieving efficient and uniform mixing of water quality and quantity. This provides a solid foundation for stable sludge activity and compliant reaction efficiency in the subsequent biochemical module. The tank is equipped with two liftable SS304 submersible sewage pumps (the number can be flexibly adjusted according to actual water volume and project scale), using a diagonal distributed installation layout (spacing 2 / 3 of the tank's side length) to ensure thorough wastewater extraction and stable lifting to the EGSB reactor. II. Biochemistry Module: The biochemical module is sequentially connected to the EGSB anaerobic reactor and the anaerobic + anaerobic + two-stage AO unit. It adopts a prefabricated, corrosion-resistant carbon steel structure for integrated construction, which solves the problems of traditional biochemical modules being scattered and having low processing efficiency. EGSB Anaerobic Reactor: Designed for the high-concentration organic wastewater from pure grain liquor production, it integrates a uniform multi-point water distribution system and a terminal sedimentation selective reflux device. The water distribution system uses DN100 SS304 water distribution pipes, with one distribution point every 2m² (the water distribution holes adopt a spiral design), achieving uniform distribution of wastewater throughout the entire area and avoiding localized organic matter accumulation. The sedimentation selective reflux device (made of SS304, with an internal 60° inclined guide plate) can directionally return the separated sludge to the sludge bed reaction zone, while efficiently intercepting flocculent sludge, completely avoiding the problem of treatment efficiency reduction caused by its entry into the subsequent aerobic system. The reactor has a built-in optimized three-phase separator, and the generated methane gas is transported to the biogas combustion device through a dedicated biogas collection pipe, achieving a COD removal rate of 60%-70% while achieving safe energy recovery. After precise water collection by a triangular weir, the effluent flows by gravity to the anaerobic zone. Anaerobic + Two-stage AO unit Anaerobic Zone: The anaerobic zone is equipped with a submersible mixer made of SS304 material. Its power is precisely selected according to the tank volume of 3-8W / m³. It is installed diagonally and symmetrically to form a closed-loop water flow disturbance, which promotes the deep release of phosphorus by polyphosphate-accumulating bacteria in the anaerobic environment. This provides efficient pre-reaction conditions for the subsequent aerobic phosphorus absorption process. The anaerobic effluent flows by gravity to the first-level A zone. Two-stage AO zones: The two-stage AO zones use a dual-parameter coupled calculation of sludge load and denitrification rate to accurately match the hydraulic retention time and calculate the tank volume. Submersible mixers are installed in the primary and secondary A zones to enhance the overall contact efficiency between denitrifying bacteria and nitrogenous substrates through controlled water flow, while effectively preventing sludge settling and caking. Primary and secondary O zones: Equipped with liftable tubular aerators. This aeration unit adopts a modular suspension structure, with the main pipe serving as the lifting load-bearing frame and the branch pipes distributed in a noodle-like pattern. This enhances oxygen transfer efficiency through overall air distribution, ensuring sufficient ammonia nitrogen nitrification reaction, and allows for independent maintenance while the system is in operation. This completely solves the problem of traditional fixed aerators requiring emptying of the tank during maintenance. The secondary O zone is equipped with a tubular return pump, which returns the mixed liquor to the anoxic zone to achieve efficient removal of total nitrogen (TN) from the wastewater. The effluent from the primary A zone flows by gravity to the primary O zone, the effluent from the primary O zone flows by gravity to the secondary A zone, and the effluent from the secondary A zone flows by gravity to the secondary O zone. The secondary O unit module has an inverted triangular effluent trough in the center, and the bottom of the trough is directly connected to the deep treatment module through a corrosion-resistant effluent pipe. A stainless steel rectangular sedimentation module is also installed to achieve sludge-water separation. The effluent from the secondary O zone flows by gravity to the advanced oxidation reaction tank, and the remaining sludge is discharged to the sludge storage tank. III. Depth Processing Module: The advanced treatment module is equipped with an advanced oxidation reaction tank, a coagulation sedimentation tank, and a pasteurization metering tank to achieve effective removal of recalcitrant COD and residual total phosphorus. Advanced oxidation reaction tank: The reaction tank adopts a modular, assembled square structure made of composite modified anti-corrosion material. By adding sulfuric acid, ferrous sulfate, and persulfate, it further removes recalcitrant COD. The unit has a built-in high-precision ORP online monitoring instrument and a smart pH meter to achieve real-time sampling of dual parameters and deviation linkage control. By setting up a paddle-type agitator, it ensures uniform mixing of the reagents and the liquid to be treated without dead zones. The effluent from the reaction tank flows by gravity to the neutralization zone in the coagulation sedimentation tank. Coagulation and sedimentation tank: The coagulation and sedimentation tank is divided into a neutralization zone, a coagulation zone, a flocculation zone, and a sedimentation zone. The neutralization zone is connected to the coagulation zone by gravity flow through the addition of sodium hydroxide. The coagulation zone is connected to the flocculation zone by gravity flow through the addition of polyaluminum chloride. The flocculation zone is connected to the sedimentation zone by gravity flow through the addition of polyacrylamide. Each zone of the neutralization-coagulation-flocculation zone is equipped with a graded variable frequency adaptive paddle agitator system, which precisely controls the agitation intensity according to the reaction requirements to achieve full mixing of the reagents. The sedimentation tank is equipped with a central cylinder made of SS304 material to achieve uniform diffusion of wastewater and effective sedimentation of sludge. The sedimentation tank is equipped with a vertical sludge pump to discharge sludge to a sludge storage tank. The effluent is effectively collected by gravity flow to the Parshall metering tank through the setting of an effluent weir to ensure that the effluent TP≤1mg / L and SS≤50mg / L. IV. Emergency Response Module: In response to sudden excessive wastewater or excessive water flow during the liquor production process, an emergency zone is set up. The emergency zone is equipped with a liftable submersible sewage pump to lift the wastewater to the front end of the pretreatment system in an even manner. At the same time, UPVC air pipes are used at the bottom to replace traditional mechanical stirring with air disturbance to achieve efficient and uniform mixing of water quality and quantity. V. Sludge Treatment Module: The sludge treatment module includes a biochemical treatment module and a deep treatment module for sludge discharge. This unit mainly consists of a sludge storage tank and a sludge dewatering machine. After the sludge from each unit is homogenized and mixed in the sludge storage tank, it is pumped to the sludge dewatering machine for dewatering treatment.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-efficiency purification and treatment device for wastewater from pure grain liquor production, comprising a pretreatment module (1); characterized in that, Also includes: The pretreatment module (1) is provided with a grid water collection area (11), a primary sedimentation area (12) and a regulating area (13), and is integrated with a prefabricated anti-corrosion carbon steel structure. The biochemical module (2) includes an EGSB anaerobic reactor (21) and an anaerobic + two-stage AO unit (22), which is integrated using a prefabricated, corrosion-resistant carbon steel structure. The deep treatment module (3) is equipped with a sodium persulfate advanced oxidation zone (31), a coagulation sedimentation tank (32) and a Pasteur metering tank (33) to achieve effective removal of recalcitrant COD and residual total phosphorus; Emergency treatment module (4), which includes an accident area (41), and the accident area (41) is connected to the grid water collection area (11) through the inlet pipe and the return pipe. It is used to treat sudden excessive sewage or excessive water during the production of liquor. The sludge treatment module (5) is equipped with a sludge storage tank (51) and a sludge dewatering machine (52), and the sludge discharged from the biochemical treatment module and the deep treatment module is treated.

2. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The water collection area (11) of the bar screen is equipped with a 70° inclined mechanical fine bar with a 5mm gap. A water collection buffer is set downstream of the bar screen and a corrosion-resistant submersible sewage pump with a flow rate appropriate.

3. The high-efficiency purification and treatment equipment for pure grain liquor production wastewater as described in claim 1, characterized in that, The initial settling zone (12) adopts a simplified vertical flow integrated structure with only a central cylinder. The central cylinder is a conical flow guide structure that is wider at the top and narrower at the bottom, and a conical flow guide hole is opened below the central cylinder.

4. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The bottom of the regulating zone (13) adopts a distributed water distribution structure with UPVC air pipes. Two liftable submersible sewage pumps are also installed at the bottom of the regulating zone (13) and are installed in a diagonal distributed layout.

5. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The EGSB anaerobic reactor (21) is equipped with an integrated uniform multi-point water distribution system and an end sedimentation selective reflux device. The water distribution system uses water distribution pipes, with one water distribution point set up for every 2m², so as to achieve uniform distribution of wastewater throughout the entire area. In addition, the EGSB anaerobic reactor (21) is also equipped with a three-phase separator, and a triangular weir is set at the effluent of the EGSB anaerobic reactor (21).

6. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The anaerobic zone of the anaerobic + two-stage AO unit (22) is equipped with a submersible mixer made of SS304 material, and is installed diagonally symmetrically to form a closed-loop annular water flow disturbance. In the anaerobic + two-stage AO unit (22), there are two-stage AO zones, in which submersible mixers are configured in the first and second stage A zones, liftable tubular aerators are configured in the first and second stage O zones, a tubular return pump is set in the second stage O zone, and an inverted triangular effluent trough is set in the center of the second stage O zone. The bottom of the trough is directly connected to the deep treatment module through an anti-corrosion effluent pipe, and a stainless steel rectangular sedimentation module is set to achieve mud-water separation.

7. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The sodium persulfate advanced oxidation zone (31) adopts a modular assembled square structure with composite modified anti-corrosion material. The sodium persulfate advanced oxidation zone (31) is equipped with a high-precision ORP online monitoring instrument and a smart pH meter to realize real-time sampling of dual parameters and deviation linkage control. The sodium persulfate advanced oxidation zone (31) is also equipped with a paddle mixer to ensure that the reagent and the liquid to be treated are mixed evenly without dead corners.

8. The high-efficiency purification and treatment equipment for wastewater from pure grain liquor production as described in claim 1, characterized in that, The coagulation sedimentation tank (32) is divided into a neutralization zone, a coagulation zone, a flocculation zone and a sedimentation zone.

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