Integrated garlic cleaning wastewater treatment device

Abstract

The utility model discloses an integrated garlic cleaning wastewater treatment device which comprises a stainless steel tank body, partition plates are arranged in the tank body, and the partition plates divide the tank body into a grating tank, an aeration adjusting tank, a micro-electrolysis tank, a Fenton reaction zone, a primary sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a secondary sedimentation tank. The garlic cleaning wastewater treatment device has the beneficial effects that the garlic cleaning wastewater equipment is integrated, so that the occupied area is reduced, and the device is convenient to move; the treatment process adopts an advanced oxidation and biochemical treatment process, while physical and chemical pretreatment is utilized, the biochemical treatment process is adopted, and microorganisms are utilized for biodegradation, so that the water quality of the effluent can be effectively improved, the stability of the effluent reaching the standard is ensured, the treatment effect is good, and the effluent reaches the standard.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to an integrated garlic washing wastewater treatment device. Background Art

[0002] The washing wastewater in the garlic processing process contains a large amount of pollutants such as garlic skins, sediment, allicin, and sugars. Allicin, with the chemical name of diallyl trisulfide, a relative molecular mass of 178, and a total content of ≥ 95%, has a strong pungent smell and a unique spicy taste. It is insoluble in water, is an oily liquid, and can be mixed with ethanol, ether, benzene, etc. The disulfide and trisulfide in allicin can penetrate the cell membrane of bacteria into the cytoplasm, oxidize the sulfhydryl-containing enzyme into a disulfide bond, thereby inhibiting cell division and destroying the normal metabolism of microorganisms. If it is directly discharged into the water without treatment, it will consume the dissolved oxygen in the water, damage the ecological system, and pollute the environment. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide an integrated garlic washing wastewater treatment device with simple process, small floor area, good treatment effect, low investment cost, and long-term stable operation.

[0004] To solve the above technical problems, the present utility model provides an integrated garlic washing wastewater treatment device, which comprises a pool body made of stainless steel. A partition is arranged inside the pool body, and the partition divides the pool body into a grille tank, an aeration adjustment tank, a micro-electrolysis tank, a Fenton reaction area, a primary sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, and a secondary sedimentation tank; An inlet flange is arranged on one side of the grille tank, and one set of coarse and fine grilles are arranged inside the tank; The aeration adjustment tank shares a wall with the grille tank, is located on one side of the grille tank, and is connected to each other through holes. An air pipeline, a float level switch, and a submersible pump are arranged inside the aeration adjustment tank; The micro-electrolysis tank shares a wall with the aeration adjustment tank and is connected to each other through a sewage pipeline. An online pH meter, iron-carbon packing, and an aeration pipeline are arranged inside it, and it is connected to an acid dosing system through a dosing pipeline; A stirrer is arranged in the first Fenton reaction area and is connected to a hydrogen peroxide dosing system through a pipeline; The second Fenton reaction area shares a wall with the first Fenton reaction area and is connected through a hole. An online pH meter and a stirrer are arranged inside it, and it is connected to an alkali dosing system and a coagulant aid dosing system through dosing pipelines; The primary sedimentation tank is connected to the second Fenton reaction area through a hole. A sludge discharge pipeline is arranged at the bottom of the primary sedimentation tank, inclined tube packing is arranged in the middle, and a primary sedimentation tank water collecting weir is arranged at the top; The hydrolysis acidification tank shares a wall with the micro-electrolysis tank, the Fenton reaction area, and the primary sedimentation tank and is connected through a pipeline. A perforated aeration pipeline is arranged at the bottom of the hydrolysis acidification tank, and rope type soft packing is arranged in the middle; The contact oxidation tank shares a wall with the primary sedimentation tank and the hydrolysis acidification tank. A microporous aeration pipeline and a mixed liquid reflux pump are arranged at the bottom of the contact oxidation tank, and rope type soft packing is arranged in the middle; The secondary sedimentation tank is a vertical flow sedimentation tank, shares a wall with the contact oxidation tank, and is connected through a pipeline. A central draft tube, an effluent water collecting weir, a sludge pump, and an outlet flange are arranged in the secondary sedimentation tank; The integrated garlic washing wastewater treatment device is also equipped with a blower and an electric control cabinet.

[0005] Further, top plates are arranged on the tops of the grille tank and the aeration adjustment tank.

[0006] Further, the air pipeline in the aeration adjustment tank, the aeration pipeline in the micro-electrolysis tank, the perforated aeration pipeline in the hydrolysis acidification tank, and the microporous aeration pipeline in the contact oxidation tank are connected to the blower through pipelines.

[0007] Further, the acid dosing system, the hydrogen peroxide dosing system, the alkali dosing system, the coagulant aid dosing system, and the blower are placed on the top plates of the grille tank and the aeration adjustment tank.

[0008] Further, a solenoid valve is arranged on the pipeline connecting the perforated aeration pipeline in the hydrolysis acidification tank and the blower.

[0009] Further, a PLC controller is arranged inside the electric control cabinet.

[0010] Furthermore, the acid dosing system, the hydrogen peroxide dosing system, the alkali dosing system, and the coagulant aid dosing system are all single-barrel and single-pump skids, and a mixer is provided inside the dosing barrel.

[0011] The beneficial effects of the present utility model are as follows: By integrating the garlic washing wastewater treatment device, the floor area is reduced and it is convenient to move; the treatment process adopts the advanced oxidation + biochemical process. While using physical and chemical pretreatment, the biochemical treatment process is adopted, and microorganisms are used for biodegradation, which can effectively improve the water quality of the effluent and ensure the stability of the effluent meeting the standards. The treatment effect is good and the effluent meets the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG Figure 1 is a top view of the present utility model.

[0013] FIG Figure 2 is a top view of the present utility model FIG Figure 1 A - A sectional view.

[0014] FIG Figure 3 is a top view of the present utility model FIG Figure 1 B - B sectional view.

[0015] In the figure, 1. Grid tank, 1.1 Coarse grid, 1.2 Fine grid, 1.3 Inlet flange, 2. Aeration adjustment tank, 2.1 Aeration adjustment tank air pipeline, 2.2 Float level switch, 2.3 Submersible pump, 3. Micro - electrolysis cell, 3.1 Online pH meter, 3.2 Iron - carbon packing, 3.3 Acid dosing system, 3.4 Micro - electrolysis cell aeration pipeline, 4. First Fenton reaction zone, 4.1 First Fenton reaction zone mixer, 4.2 Hydrogen peroxide dosing system, 5. Second Fenton reaction zone, 5.1 Second Fenton reaction zone mixer, 5.2 Alkali dosing system, 5.3 Coagulant aid dosing system, 5.4 Online pH meter, 6. Primary sedimentation tank, 6.1 Primary sedimentation tank water collection weir, 6.2 Inclined tube packing, 6.3 Primary sedimentation tank sludge discharge pipeline, 7. Hydrolysis acidification tank, 7.1 Perforated aeration pipeline, 7.2 Hydrolysis acidification tank packing, 8. Contact oxidation tank, 8.1 Microporous aeration pipeline, 8.2 Contact oxidation tank packing, 8.3 Mixed liquor return pump, 9. Secondary sedimentation tank, 9.1 Effluent water collection weir, 9.2 Central guide cylinder, 9.3 Sludge pump, 9.4 Effluent flange, 10. Blower, 11. Electric control cabinet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described in detail below through specific implementation examples in conjunction with the drawings.

[0017] The garlic washing wastewater flows into the grille tank 1 through the inlet flange 1.3, and respectively flows through the coarse grille 1.1 and the fine grille 1.2. After filtering out solid substances such as garlic skins in the sewage, the sewage flows into the aeration and regulation tank 2 by gravity through the holes. An aeration pipeline 2.1 is arranged in the aeration and regulation tank 2 to aerate and stir the sewage to prevent anaerobic conditions in the sewage and generate harmful gases such as H2S. After the sewage is homogenized and equalized in the aeration and regulation tank 2, it is pumped to the micro-electrolysis tank 3 by a submersible pump 2.3. The micro-electrolysis tank 3 is equipped with an on-line pH meter 3.1 that can automatically detect the pH of the influent water. When the pH of the influent water is greater than 4.0, the acid dosing system 3.3 is started to pump medicine into the micro-electrolysis tank 3 until the pH of the wastewater is qualified. The micro-electrolysis process is to treat the wastewater by using the "galvanic cell" effect generated by the iron-carbon packing filled in the tank without power supply. When water is passed through, countless "galvanic cells" with a potential difference of 1.2V will be formed in the tank. The "galvanic cell" uses the wastewater as the electrolyte and forms an electric current through discharging to carry out electrolytic oxidation and reduction treatment on the wastewater to achieve the purpose of degrading organic pollutants. During the treatment process, the newly generated [·OH], [H], [O], Fe 2+ 、Fe 3+It can undergo redox reactions with many components in the wastewater, destroy the groups in the wastewater, and even break the chains, achieving the degradation effect. Then the sewage flows by gravity into the first Fenton reaction zone 4. In the first Fenton reaction zone 4, the mixer 4.1 and the hydrogen peroxide dosing system 4.2 are linked with the submersible pump 2.3. In the first Fenton reaction zone 4, after the ferrous ions generated by the microelectrolytic cell 3 react with the added hydrogen peroxide to form the highly oxidizing Fenton reagent, the sewage is oxidatively broken and then flows by gravity through the holes into the second Fenton reaction zone 5. The second Fenton reaction zone 5 is equipped with an on-line pH meter 5.4 that can automatically detect the influent pH. When the influent pH is low, the alkali dosing system 5.2 is started to pump medicine into the second Fenton reaction zone 5 until the wastewater pH is qualified. In the second Fenton reaction zone 5, the mixer 5.1 and the coagulant aid dosing system 5.3 are linked with the submersible pump 2.3. The fine flocs generated at the front end react with the added coagulant aid here to form larger flocs, which flow by gravity with the sewage into the primary sedimentation tank 6. The flocs precipitate at the bottom hopper of the tank by gravity and are discharged through the sludge discharge pipe 6.3. The supernatant flows by gravity into the hydrolysis acidification tank 7. In the hydrolysis acidification tank 7, the perforated aeration pipe 7.1 is connected to the blower 12 through a pipe, and intermittent aeration is realized by using a solenoid valve to provide a suitable living environment for facultative microorganisms. The sewage undergoes the action of facultative microorganisms here, and the macromolecular substances that are not easily degraded are decomposed into small molecular substances that are easily degraded, which is beneficial to the subsequent aerobic biological reaction, and its effluent enters the contact oxidation tank 8. In the contact oxidation tank 8, the blower 12 is connected to the microporous aeration pipe 8.1 through a pipe to provide oxygen for the microorganisms. Through the metabolic action of aerobic microorganisms, the main pollutants in the sewage are removed. The effluent of the contact oxidation tank 8 flows by gravity into the secondary sedimentation tank 9. In the secondary sedimentation tank 9, the sludge in the sewage precipitates at the bottom hopper of the tank by gravity, and the supernatant is discharged up to the standard.

[0018] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An integrated garlic washing wastewater treatment device, characterized in that: It includes a tank body made of stainless steel, in which a partition is arranged, and the partition divides the tank body into a grille tank, an aeration regulating tank, a micro-electrolysis tank, a Fenton reaction zone, a primary sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, and a secondary sedimentation tank; a water inlet flange is arranged on one side of the grille tank, and a set of coarse and fine grilles are arranged in the tank; the aeration regulating tank and the grille tank share a wall, are located on one side of the grille tank, and are connected to each other through holes, and an air duct, a float liquid level switch, and a submersible pump are arranged in the aeration regulating tank; the micro-electrolysis tank and the aeration regulating tank share a wall, are connected to each other through a sewage pipe, and an online pH meter, an iron-carbon filler, and an aeration pipe are arranged inside, and are connected to the acid dosing system through a dosing pipe; the Fenton reaction zone is provided with two grids, namely, the first Fenton reaction zone and the second Fenton reaction zone, wherein the first Fenton reaction zone is provided with a stirrer, and is connected to the hydrogen peroxide dosing system through a pipe; the second Fenton reaction zone and the first Fenton reaction zone share a wall, and are connected to the hydrogen peroxide dosing system through a hole The primary sedimentation tank is connected with the Fenton second reaction zone through a hole, and an online pH meter and a stirrer are arranged inside the primary sedimentation tank. The primary sedimentation tank is connected with the Fenton second reaction zone through a hole. A sludge discharge pipeline is arranged at the bottom of the primary sedimentation tank, an inclined tube filler is arranged in the middle, and a primary sedimentation tank water collecting weir is arranged on the top. The hydrolysis acidification tank shares a wall with the micro-electrolysis cell, the Fenton reaction zone, and the primary sedimentation tank, and is connected through a pipeline. A perforated aeration pipeline is arranged at the bottom of the hydrolysis acidification tank, and a rope-type soft filler is arranged in the middle. The contact oxidation tank shares a wall with the primary sedimentation tank and the hydrolysis acidification tank. A microporous aeration pipeline and a mixed liquor reflux pump are arranged at the bottom of the contact oxidation tank, and a rope-type soft filler is arranged in the middle. The secondary sedimentation tank is a vertical flow sedimentation tank, which shares a wall with the contact oxidation tank and is connected through a pipeline. A central guide tube, an outlet water collecting weir, a sludge pump and an outlet flange are arranged in the secondary sedimentation tank. The integrated garlic washing wastewater treatment device is also equipped with a blower and an electric control cabinet.

2. The integrated garlic washing wastewater treatment device according to claim 1, characterized in that: A top plate is arranged on the top of the grille pool and the aeration regulating pool.

3. The integrated garlic washing wastewater treatment device according to claim 1, characterized in that: The air duct of the aeration regulating tank, the aeration duct of the micro-electrolysis tank, the perforated aeration duct of the hydrolysis acidification tank, and the microporous aeration duct of the contact oxidation tank are connected to the blower through pipelines.

4. The integrated garlic washing wastewater treatment device according to claim 2, characterized in that: The acid dosing system, the hydrogen peroxide dosing system, the alkali dosing system, the coagulant aid dosing system and the blower are placed on the top plate of the grid tank and the aeration adjustment tank.

5. The integrated garlic washing wastewater treatment device according to claim 3 is characterized in that: A solenoid valve is provided between the perforated aeration pipeline of the hydrolysis acidification tank and the pipeline connecting the blower.

6. The integrated garlic washing wastewater treatment device according to claim 1, characterized in that: A PLC controller is arranged in the electric control cabinet.

7. The integrated garlic washing wastewater treatment device according to claim 1, characterized in that: The acid dosing system, the hydrogen peroxide dosing system, the alkali dosing system, and the coagulant aid dosing system are all single-barrel single-pump skid-mounted, and a mixer is provided inside the dosing barrel.

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