Starch production sewage treatment device

Abstract

The utility model discloses a starch production sewage treatment device in the technical field of starch sewage treatment devices, which comprises a pretreatment mechanism, a biochemical treatment mechanism and a deep treatment mechanism, the biochemical treatment mechanism comprises an aeration box, a lifting plate, activated sludge, a second lifting assembly and a fixing plate, the deep treatment mechanism comprises an adsorption box, a separation box, an oxidation box and a disinfection box which are sequentially arranged, and after wastewater is introduced into the settling box, the first lifting assembly drives a filter screen to ascend; in addition, activated sludge is mixed with the wastewater, organic matters in the wastewater are effectively degraded by controlling operation conditions such as aeration time, sludge concentration and temperature, and a second lifting assembly drives a lifting plate to ascend, so that the wastewater can be effectively degraded. Under the action of extrusion force between the lifting plate and the fixed plate, wastewater remaining in the activated sludge is extruded out.

Description

Technical Field

[0001] The utility model relates to the technical field of starch sewage treatment devices, and specifically relates to a starch production sewage treatment device. Background Technique

[0002] In recent years, with the development of population and economy, environmental problems have become increasingly serious, and among them, the problem of water pollution has become a relatively key and difficult problem among many environmental problems.

[0003] Starch production is an important industrial process, but its wastewater contains high concentrations of organic matter and suspended solids, causing serious pollution to the environment. Currently, the starch production sewage treatment process mainly includes three steps: pretreatment, biochemical treatment, and advanced treatment. Pretreatment mainly conducts preliminary solid-liquid separation and removal of large particle impurities from starch production wastewater. Biochemical treatment mainly degrades organic matter into harmless substances through the action of microorganisms. Advanced treatment mainly further purifies the wastewater after biochemical treatment to meet the discharge standards.

[0004] Currently, the filtration methods used in starch sewage treatment devices are all static filtration, with poor filtration effects and the need to wait for solid particles in the starch sewage to precipitate onto the filter screen. In addition, after the activated sludge is mixed with the wastewater, some wastewater will remain in the activated sludge. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art solutions, the utility model provides a starch production sewage treatment device, which can effectively solve the technical problems that the current filtration methods used in starch sewage treatment devices are all static filtration, with poor filtration effects and the need to wait for solid particles in the starch sewage to precipitate onto the filter screen. In addition, after the activated sludge is mixed with the wastewater, some wastewater will remain in the activated sludge.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a starch production sewage treatment device, including a pretreatment mechanism, a biochemical treatment mechanism, and an advanced treatment mechanism. The pretreatment mechanism includes a sedimentation tank, a filter screen arranged at the bottom of the sedimentation tank, and a first lifting component arranged at the top of the sedimentation tank and used to drive the filter screen to move up and down. The biochemical treatment mechanism includes an aeration tank, a lifting plate arranged at the bottom of the aeration tank, activated sludge laid on the surface of the lifting plate, a second lifting component arranged at the top of the aeration tank and used to drive the lifting plate to move up and down, and a fixing plate arranged inside the aeration tank. The advanced treatment mechanism includes an adsorption tank, a separation tank, an oxidation tank, and a disinfection tank arranged in sequence.

[0007] Preferably, a first guiding rod is provided at the bottom of the sedimentation tank, the filter net is slidably connected to the first guiding rod in a matching manner, the first lifting assembly includes a first cylinder mounting frame and a first lifting cylinder, and the output shaft of the first lifting cylinder is connected to the filter net.

[0008] Preferably, a second guiding rod is provided at the bottom of the aeration tank, the lifting plate is slidably connected to the second guiding rod in a matching manner, the second lifting assembly includes a second cylinder mounting frame and a second lifting cylinder, the output shaft of the second lifting cylinder is connected to the lifting plate, and the fixing plate is arranged above the lifting plate.

[0009] Preferably, an activated carbon adsorption column is provided inside the adsorption tank, a filter membrane is provided inside the separation tank, an oxidant is provided inside the oxidation tank, and an ultraviolet disinfection lamp is provided inside the disinfection tank.

[0010] Preferably, the type of the filter membrane is a microporous membrane or an ultrafiltration membrane.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By arranging a filter net at the bottom of the sedimentation tank and a first lifting assembly for driving the filter net to move up and down at the top of the sedimentation tank, when wastewater is introduced into the sedimentation tank, the first lifting assembly drives the filter net to move upward, and when the filter net moves upward, the solid particles floating in the wastewater are carried out of the wastewater, without waiting for the solid particles to settle, thereby greatly improving the filtering efficiency of the sedimentation tank. In addition, when the activated sludge is mixed with the wastewater, by controlling operating conditions such as the aeration time, sludge concentration, and temperature, the organic matter in the wastewater is effectively degraded. After the biochemical treatment is completed, the second lifting assembly drives the lifting plate to move upward, and under the extrusion force between the lifting plate and the fixing plate, part of the wastewater remaining in the activated sludge is squeezed out. Description of the Drawings

[0013] Figure 1 is a three-dimensional view of a starch production sewage treatment device of the present utility model;

[0014] Figure 2 is a plan view of a starch production sewage treatment device of the present utility model.

[0015] Reference numerals in the drawings:

[0016] 1 - sedimentation tank, 11 - first lifting cylinder, 12 - first cylinder mounting frame, 13 - first guiding rod, 14 - filter net;

[0017] 2 - aeration tank, 21 - second cylinder mounting frame, 22 - fixing plate, 23 - second lifting cylinder, 24 - lifting plate, 25 - second guiding rod;

[0018] 3 - Adsorption box, 31 - Activated carbon adsorption column;

[0019] 4 - Separation box, 41 - Filter membrane;

[0020] 5 - Oxidation box, 51 - Oxidant;

[0021] 6 - Disinfection box, 61 - Ultraviolet disinfection lamp. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1-2As shown in the figure, the utility model provides a sewage treatment device for starch production, which includes a pretreatment mechanism, a biochemical treatment mechanism and a deep treatment mechanism. The pretreatment mechanism includes a sedimentation tank 1, a filter screen 14 arranged at the bottom of the sedimentation tank 1, and a first lifting component arranged at the top of the sedimentation tank 1 and used to drive the filter screen 14 to move up and down. A first guide rod 13 is arranged at the bottom of the sedimentation tank 1, and the filter screen 14 is slidably connected with the first guide rod 13. The first lifting component includes a first cylinder mounting frame 12 and a first lifting cylinder 11. The output shaft of the first lifting cylinder 11 is connected with the filter screen 14. The biochemical treatment mechanism includes an aeration tank 2, a lifting plate 24 arranged at the bottom of the aeration tank 2, activated sludge laid on the surface of the lifting plate 24, a second lifting component arranged at the top of the aeration tank 2 and used to drive the lifting plate 24 to move up and down, and a fixing plate 22 arranged inside the aeration tank 2. A second guide rod 25 is arranged at the bottom of the aeration tank 2, and the lifting plate 24 is slidably connected with the second guide rod 25. The second lifting component includes a second cylinder mounting frame 21 and a second lifting cylinder 23. The output shaft of the second lifting cylinder 23 is connected with the lifting plate 24. The fixing plate 22 is arranged above the lifting plate 24. The deep treatment mechanism includes an adsorption tank 3, a separation tank 4, an oxidation tank 5 and a disinfection tank 6 arranged in sequence. An activated carbon adsorption column 31 is arranged inside the adsorption tank 3. The sewage after biochemical treatment passes through the activated carbon adsorption column 31 to remove residual organic matters and odor substances. A filter membrane 41 is arranged inside the separation tank 4. The type of the filter membrane 41 is a microfiltration membrane or an ultrafiltration membrane. The microfiltration membrane or ultrafiltration membrane is used to filter the sewage to remove tiny suspended matters and dissolved substances. An oxidant 51 is arranged inside the oxidation tank 5. By adding oxidants 51 such as ozone or hydrogen peroxide, the refractory organic matters in the sewage are oxidized and decomposed to improve the treatment effect. An ultraviolet disinfection lamp 61 is arranged inside the disinfection tank 6. The sewage after deep treatment is irradiated by ultraviolet rays to kill bacteria and viruses to ensure that the discharge meets the sanitary standards.

[0024] Compared with the traditional technology: by arranging the filter screen 14 at the bottom of the sedimentation tank 1 and the first lifting component used to drive the filter screen 14 to move up and down at the top of the sedimentation tank 1, therefore, after the wastewater is introduced into the sedimentation tank 1, the first lifting component drives the filter screen 14 to move upward. When the filter screen 14 moves upward, the solid particles floating in the wastewater are taken out of the wastewater, without waiting for the solid particles to settle, thereby greatly improving the filtration efficiency of the sedimentation tank 1. In addition, when the activated sludge is mixed with the wastewater, by controlling the operating conditions such as the aeration time, sludge concentration and temperature, the organic matters in the wastewater are effectively degraded. After the biochemical treatment is completed, the second lifting component drives the lifting plate 24 to move upward. Under the extrusion force between the lifting plate 24 and the fixing plate 22, part of the wastewater remaining in the activated sludge is extruded out.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A starch production wastewater treatment device, comprising a pretreatment mechanism, a biochemical treatment mechanism and a deep treatment mechanism, characterized in that: The pretreatment mechanism includes a sedimentation tank, a filter screen arranged at the bottom of the sedimentation tank, and a first lifting component arranged at the top of the sedimentation tank and used to drive the filter screen to move up and down. The biochemical treatment mechanism includes an aeration tank, a lifting plate arranged at the bottom of the aeration tank, activated sludge laid on the surface of the lifting plate, a second lifting component arranged at the top of the aeration tank and used to drive the lifting plate to move up and down, and a fixed plate arranged inside the aeration tank. The deep treatment mechanism includes an adsorption box, a separation box, an oxidation box and a disinfection box arranged in sequence.

2. A starch production wastewater treatment device according to claim 1, characterized in that: A first guide rod is provided at the bottom of the sedimentation box, the filter screen is slidably connected to the first guide rod, the first lifting assembly includes a first cylinder mounting frame and a first lifting cylinder, and the output shaft of the first lifting cylinder is connected to the filter screen.

3. A starch production wastewater treatment device according to claim 1, characterized in that: A second guide rod is provided at the bottom of the aeration box, the lifting plate is slidably connected to the second guide rod, the second lifting assembly includes a second cylinder mounting frame and a second lifting cylinder, the output shaft of the second lifting cylinder is connected to the lifting plate, and the fixed plate is arranged above the lifting plate.

4. A starch production wastewater treatment device according to claim 1, characterized in that: An activated carbon adsorption column is arranged inside the adsorption box, a filter membrane is arranged inside the separation box, an oxidant is arranged inside the oxidation box, and an ultraviolet disinfection lamp is arranged inside the disinfection box.

5. A starch production wastewater treatment device according to claim 4, characterized in that: The type of the filtration membrane is a microporous membrane or an ultrafiltration membrane.

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