Low-salt food wastewater zero-discharge treatment equipment
By designing a low-salt food wastewater zero-emission treatment equipment including pretreatment components and treatment boxes, the problems of blockage of high-salt sewage treatment in food production and low efficiency of heavy metal removal are solved, and the sewage purification and salt removal are achieved, ensuring that Environment and human health.
Patent Information
- Application Number
- CN202520099804.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2035-01-16
AI Technical Summary
If high-salt sewage generated in food production is directly discharged without treatment, it will cause serious damage to the environment and enter the human body through the food chain, endangering health. The existing electro-adsorption and salt removal technology has problems such as filler blockage and low efficiency in removing heavy metals.
A low-salt food wastewater zero-emission treatment equipment is designed, including pretreatment components and treatment boxes. The pretreatment assembly is designed through the filler plate and isolation gasket to avoid filler clogging and to form a biofilm through an aeration fan for contaminant retention. The heavy metal was removed by using ceramic filter plates and microfiltration membrane filter plates in the treatment box, and salt analysis was performed through the electrode plates.
The organic matter, nitrogen, phosphorus and other pollutants in the sewage have been purified, and the heavy metals and salts in the sewage have been removed, avoiding environmental pollution and human health hazards. The equipment design is convenient for maintenance and replacement of filter plates and electrode plates, ensuring the filtering effect and long-term use of the equipment.
Smart Images
Figure CN222498927U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater treatment, in particular to a zero-discharge treatment device for low-salt food wastewater. Background Art
[0002] Food production will produce a large amount of wastewater with a high salt content. This wastewater contains a large amount of heavy metal ions. If this wastewater is discharged into the environment without treatment, it will not only cause serious damage to the environment, but the heavy metal ions in these pollutants will enter the human body through the food chain and cause serious harm to human health. Therefore, the wastewater generated in food production must be desalinated.
[0003] Electrosorption desalination has the advantages of no secondary pollution during the treatment process, high efficiency and energy saving, and low unit wastewater treatment price. The raw water needs to be filtered before electrosorption, but the solid suspended matter or sediment remaining in the raw water can easily clog the filter, thus affecting the next electrosorption process. In addition, the heavy metals or some organic matter contained in the raw water cannot be removed by simple mechanical filtration.
[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a low-salt food wastewater zero-discharge treatment equipment is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a low-salt food wastewater zero-discharge treatment device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-salt food wastewater zero-discharge treatment device, including a pre-treatment component, the pre-treatment component including an end cover, a handle, a connecting rod, a cross, a filler plate and an isolation gasket, the top end of the end cover is fixedly connected to the handle, and the bottom end of the end cover is fixedly connected to the connecting rod, the tail end array of the connecting rod is fixed with a cross, and the middle part of the connecting rod is provided with a filler plate, and an isolation gasket is provided between adjacent filler plates.
[0007] Furthermore, the end cover is buckled at the top opening of the biochemical tank, the bottom side of the biochemical tank is connected with a water inlet pipe, and the top side of the biochemical tank is provided with a communication port.
[0008] Furthermore, a ring plate is fixed on the inner wall of the bottom of the biochemical tank, and the top of the ring plate is engaged with the cross.
[0009] Furthermore, an aeration pipe is arranged below the ring plate, and the aeration pipe is connected to the aeration fan through a pipeline.
[0010] Furthermore, the side of the biochemical tank is connected to a treatment box through a connecting port, and a water outlet pipe is connected to the middle of the side of the treatment box away from the connecting port.
[0011] Furthermore, a ceramic filter plate adjacent to the connecting port is placed in front of the processing box, and a microfiltration membrane filter plate is placed in the processing box. The ceramic filter plate and the microfiltration membrane filter plate are connected by plugging and unplugging at the top of the processing box using a drawer-type structure, and the ceramic filter plate and the microfiltration membrane filter plate are externally connected to a pressure difference sensor.
[0012] Furthermore, an electrode plate is arranged at the rear of the processing box, and the electrode plates are staggered and fixed on two opposite inner surfaces of the processing box, and adjacent electrode plates are charged with opposite polarities. The bottom of the electrode plate in the last position is externally connected to a slag discharge port, and an observation window is provided on the side of the electrode plate array.
[0013] Furthermore, a transducer is arranged at the top of the rear end of the processing box, and the transducer is electrically connected to the generator through a wiring harness.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. When the utility model is in use, the salt-containing sewage enters the biochemical tank through the water inlet pipe for pre-treatment. On the one hand, the present application arranges the filler plates at intervals on the connecting rod and arranges isolation washers between adjacent filler plates to solve the shortcomings of the prior art caused by the horizontal stacking of a large number of fillers, the reduction of the activity of microorganisms, and the influence on the rise of bubbles. On the other hand, by integrating the connecting rod on the end cover of the top opening of the biochemical tank, the user can conveniently pull the filler plate out of the biochemical tank through the handle to replace the failed filler plate. When in use, the aeration fan oxygenates the sewage in the biochemical tank through the aeration pipe. Under the condition of oxygenation, microorganisms gather and attach on the surface of the filler plate to form a biofilm to intercept the pollutants contained in the sewage, so that the organic matter and pollutants such as nitrogen and phosphorus in the sewage are purified.
[0016] 2. When the utility model is in use, the sewage after the organic matter is intercepted enters the treatment box through the connecting port, and the heavy metals and tiny particles in the sewage are removed in turn through the ceramic filter plate and the microfiltration membrane filter plate. The ceramic filter plate and the microfiltration membrane filter plate adopt a drawer-type structure and are plugged and unplugged from the top of the treatment box, which is convenient for the user to monitor the use status of the above two filter plates through the pressure difference sensor and replace them in time to ensure the filtering effect. Finally, the sewage enters the electrode plates arranged alternately on the relative inner surfaces of the treatment box. The sewage will flow through each electrode plate in a circuitous way when passing through. The ions in the water will be adsorbed on the electrode plates, so that the salt in the sewage is precipitated and enters the collection pool through the outlet pipe. The present application generates high-frequency vibration through the transducer controlled by the generator, so that the dirt attached to the electrode plate can be peeled off and discharged from the slag discharge port, thereby ensuring the use effect of the electrode plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model device;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the biochemical tank of the utility model;
[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the processing box of the utility model.
[0020] In the figure: 1. Pre-treatment component; 101. End cover; 102. Handle; 103. Connecting rod; 104. Cross; 105. Filling plate; 106. Isolation gasket; 2. Biochemical tank; 3. Water inlet pipe; 4. Connecting port; 5. Ring plate; 6. Aeration pipe; 7. Aeration fan; 8. Treatment box; 9. Water outlet pipe; 10. Ceramic filter plate; 11. Microfiltration membrane filter plate; 12. Pressure difference sensor; 13. Electrode plate; 14. Slag discharge port; 15. Observation window; 16. Transducer; 17. Generator. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0022] like Figure 1 to Figure 2 As shown, a low-salt food wastewater zero-discharge treatment equipment comprises a pre-treatment component 1, the pre-treatment component 1 comprises an end cover 101, a handle 102, a connecting rod 103, a cross 104, a filler plate 105 and an isolation gasket 106, the top of the end cover 101 is fixedly connected with the handle 102, and the bottom of the end cover 101 is fixedly connected with the connecting rod 103, the tail end array of the connecting rod 103 is fixed with a cross 104, and the middle of the connecting rod 103 is sleeved with a filler plate 105, and an isolation gasket 106 is arranged between adjacent filler plates 105, the end cover 101 is buckled at the top opening of the biochemical tank 2, and the bottom side end of the biochemical tank 2 is connected with a water inlet pipe 3, and the top side end of the biochemical tank 2 is provided with a connecting port 4, the bottom inner wall of the biochemical tank 2 is fixed with a ring plate 5, and the top of the ring plate 5 is connected with the cross 104, and an aeration pipe 6 is arranged below the ring plate 5, and the aeration pipe 6 is connected to the aeration fan 7 through a pipeline;
[0023] The specific operation is as follows: the salt-containing sewage enters the biochemical tank 2 through the water inlet pipe 3 for pretreatment. On the one hand, the present application arranges the filler plates 105 at intervals on the connecting rod 103 and arranges isolation washers 106 between adjacent filler plates 105 to solve the shortcomings of the prior art caused by the horizontal stacking of a large number of fillers, the reduction of the activity of microorganisms, and the influence on the rise of bubbles. On the other hand, by integrating the connecting rod 103 on the end cover 101 of the top opening of the biochemical tank 2, the user can conveniently remove the filler plate 105 from the biochemical tank 2 through the handle 102 to replace the failed filler plate 105. When in use, the aeration fan 7 oxygenates the sewage in the biochemical tank 2 through the aeration pipe 6. Under the oxygenated condition, the microorganisms gather and attach on the surface of the filler plate 105 to form a biofilm to intercept the pollutants contained in the sewage, so that the organic matter and nitrogen, phosphorus and other pollutants in the sewage are purified;
[0024] like Figures 1 to 3 As shown, the side of the biochemical tank 2 is connected to a treatment box 8 through a connecting port 4, and the middle part of the treatment box 8 facing away from the connecting port 4 is connected to a water outlet pipe 9, a ceramic filter plate 10 adjacent to the connecting port 4 is arranged in front of the treatment box 8, and a microfiltration membrane filter plate 11 is arranged in the treatment box 8, the ceramic filter plate 10 and the microfiltration membrane filter plate 11 are connected by plugging and unplugging from the top of the treatment box 8 using a drawer-type structure, and the ceramic filter plate 10 and the microfiltration membrane filter plate 11 are externally connected to a pressure difference sensor 12, an electrode plate 13 is arranged at the rear of the treatment box 8, and the electrode plates 13 are staggered and fixed on two opposite inner surfaces of the treatment box 8, and adjacent electrode plates 13 are charged with opposite polarities, the bottom of the electrode plate 13 in the last position is externally connected to a slag discharge port 14, and an observation window 15 is arranged on the side of the electrode plate 13 array, and a transducer 16 is arranged on the top of the rear end of the treatment box 8, and the transducer 16 is electrically connected to the generator 17 through a harness;
[0025] The specific operation is as follows: the sewage after the organic matter is intercepted enters the treatment box 8 through the connecting port 4, and the heavy metals and tiny particles in the sewage are removed in turn through the ceramic filter plate 10 and the microfiltration membrane filter plate 11. The ceramic filter plate 10 and the microfiltration membrane filter plate 11 adopt a drawer-type structure and are plugged and unplugged from the top of the treatment box 8, which is convenient for the user to monitor the use status of the above two filter plates through the pressure difference sensor 12 and replace them in time to ensure the filtering effect. Finally, the sewage enters the electrode plates 13 arranged alternately on the relative inner surfaces of the treatment box 8. When passing through, the sewage will flow through each electrode plate 13 in a circuitous manner, and the ions in the water will be adsorbed on the electrode plate 13, so that the salt in the sewage is precipitated and enters the collection pool from the outlet pipe 9. The present application generates high-frequency vibrations through the transducer 16 controlled by the generator 17, so that the dirt attached to the electrode plate 13 can be peeled off and discharged from the slag discharge port 14, thereby ensuring the use effect of the electrode plate 13.
[0026] Working principle: When using this low-salt food wastewater zero-discharge treatment equipment, the salt-containing sewage enters the biochemical tank 2 through the water inlet pipe 3 for pre-treatment. On the one hand, the present application arranges the filler plate 105 on the connecting rod 103 at intervals and arranges an isolation gasket 106 between adjacent filler plates 105 to solve the shortcomings of the prior art caused by the horizontal stacking of a large number of fillers, the reduction of filler activity and the influence on the rise of bubbles. On the other hand, by integrating the connecting rod 103 on the end cover 101 of the top opening of the biochemical tank 2, the user can easily remove the filler plate 105 from the biochemical tank 2 through the handle 102 to replace the failed filler plate 105. When in use, the aeration fan 7 oxygenates the sewage in the biochemical tank 2 through the aeration pipe 6. Under the condition of oxygenation, microorganisms gather and attach to the surface of the filler plate 105 to form a biofilm to intercept the pollutants contained in the sewage, so that the organic matter in the sewage The sewage after the organic matter is intercepted enters the treatment box 8 through the connecting port 4, and the heavy metals and tiny particles in the sewage are removed in turn through the ceramic filter plate 10 and the microfiltration membrane filter plate 11. The ceramic filter plate 10 and the microfiltration membrane filter plate 11 adopt a drawer-type structure and are plugged and unplugged from the top of the treatment box 8, which is convenient for the user to monitor the use status of the above two filter plates through the pressure difference sensor 12 and replace them in time to ensure the filtering effect. Finally, the sewage enters the electrode plates 13 arranged alternately on the relative inner surfaces of the treatment box 8. When passing through, the sewage will flow through each electrode plate 13 in a circuitous manner, and the ions in the water will be adsorbed on the electrode plate 13, so that the salt in the sewage is precipitated and enters the collection pool through the outlet pipe 9. The present application generates high-frequency vibration through the transducer 16 controlled by the generator 17, so that the dirt attached to the electrode plate 13 can be peeled off and discharged from the slag discharge port 14, thereby ensuring the use effect of the electrode plate 13.
[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A low-salt food wastewater zero-discharge treatment device, comprising a pre-treatment component (1), characterized in that: The pre-treatment component (1) comprises an end cover (101), a handle (102), a connecting rod (103), a cross (104), a filler plate (105) and an isolation gasket (106); the top end of the end cover (101) is fixedly connected to the handle (102), and the bottom end of the end cover (101) is fixedly connected to the connecting rod (103); the tail end array of the connecting rod (103) is fixed with a cross (104); the middle part of the connecting rod (103) is provided with a filler plate (105), and an isolation gasket (106) is provided between adjacent filler plates (105).
2. A low-salt food wastewater zero-discharge treatment equipment according to claim 1, characterized in that: The end cover (101) is buckled onto the top opening of the biochemical tank (2), the bottom side end of the biochemical tank (2) is connected to a water inlet pipe (3), and the top side end of the biochemical tank (2) is provided with a communication port (4).
3. A low-salt food wastewater zero-discharge treatment equipment according to claim 2, characterized in that: A ring plate (5) is fixed to the inner wall of the bottom of the biochemical tank (2), and the top of the ring plate (5) is engaged with the cross (104).
4. A low-salt food wastewater zero-discharge treatment equipment according to claim 3, characterized in that: An aeration pipe (6) is arranged below the ring plate (5), and the aeration pipe (6) is connected to an aeration fan (7) via a pipeline.
5. A low-salt food wastewater zero-discharge treatment equipment according to claim 2, characterized in that: The side of the biochemical tank (2) is connected to a treatment box (8) via a communication port (4), and a water outlet pipe (9) is connected to the middle of a side of the treatment box (8) away from the communication port (4).
6. A low-salt food wastewater zero-discharge treatment equipment according to claim 5, characterized in that: The processing box (8) is provided with a ceramic filter plate (10) adjacent to the communication port (4) in front, and a microfiltration membrane filter plate (11) is provided in the processing box (8); the ceramic filter plate (10) and the microfiltration membrane filter plate (11) are connected by plugging and unplugging at the top of the processing box (8) using a drawer-type structure, and the ceramic filter plate (10) and the microfiltration membrane filter plate (11) are externally connected to a pressure difference sensor (12).
7. A low-salt food wastewater zero-discharge treatment equipment according to claim 5, characterized in that: The processing box (8) is provided with an electrode plate (13) at the rear, and the electrode plates (13) are staggered and fixed on two opposite inner surfaces of the processing box (8), and adjacent electrode plates (13) are charged with opposite polarities, the bottom of the electrode plate (13) at the rear is externally connected to a slag discharge port (14), and an observation window (15) is provided on the side of the electrode plate (13) array.
8. The low-salt food wastewater zero-discharge treatment equipment according to claim 5 is characterized in that: A transducer (16) is arranged at the top of the rear end of the processing box (8), and the transducer (16) is electrically connected to the generator (17) via a wiring harness.