CN215667534U - Short-range inner Fenton series-connection outer Fenton strong oxidation device - Google Patents
Short-range inner Fenton series-connection outer Fenton strong oxidation device Download PDFInfo
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- CN215667534U CN215667534U CN202121771367.5U CN202121771367U CN215667534U CN 215667534 U CN215667534 U CN 215667534U CN 202121771367 U CN202121771367 U CN 202121771367U CN 215667534 U CN215667534 U CN 215667534U
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Abstract
The utility model discloses a short-range inner Fenton serial outer Fenton strong oxidation device which comprises an upper pool body and a lower pool body, wherein the upper pool body is provided with at least two inner Fenton reaction pools, the lower pool body is provided with an outer Fenton reaction pool and a sedimentation pool in parallel in the horizontal direction, a side plate is arranged between the outer Fenton reaction pool and the sedimentation pool, outlets are arranged on the upper side and the lower side of the side plate, a water passing weir is arranged at the top of the outer Fenton reaction pool, a water channel is formed by the water passing weir and the side plate, a water outlet of each inner Fenton reaction pool is connected with a water inlet of the outer Fenton reaction pool, and a water outlet is arranged above the side wall of the sedimentation pool. The utility model solves the problem of floating mud in the sedimentation tank after advanced oxidation, improves the catalytic efficiency of hydrogen peroxide in kitchen waste water treatment, reduces the dosage of ferrous ions in the Fenton reaction process, reduces the cost and has better water outlet effect.
Description
Technical Field
The utility model relates to the field of kitchen waste water treatment, and relates to a short-range inner Fenton series-connection outer Fenton strong oxidation device.
Background
The information in this background section is only for enhancement of understanding of the general background of the utility model and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
In recent years, the amount of kitchen waste water produced in China is increasing, and there are two main types of pollutants in the kitchen waste water, one is animal and vegetable oil mainly comprising high molecular lipids and derivatives thereof, and the other is meal residues in the form of insoluble protein, cellulose and starch-based non-soluble organic matters, which not only have high pollutant concentration, but also have high degradation difficulty and poor biodegradability. For such pollutants, ideal treatment effects are difficult to achieve by using traditional physical, chemical and biological treatment methods, so that the pretreatment by using an advanced oxidation technology is of great importance for reaching the standard of kitchen waste water.
The advanced oxidation technology is mainly represented by a Fenton reaction technology, and the Fenton reaction is to mix hydrogen peroxide and ferrous ions according to a certain proportion to generate hydroxyl radicals with strong oxidation capacity. Although the technology has stronger capacity in the aspect of treating refractory organic matters and wide applicable range, the reaction has strict requirements on reaction conditions, and the problems of unstable effluent quality, low oxidation effect and the like are easily caused.
In the field of kitchen waste water treatment, Fenton reaction is mainly used for improving biodegradability of waste water, however, the inventor finds that when the existing Fenton reaction device is used for treating kitchen waste water, a large amount of yellow floating matters similar to foams appear in the reaction process to influence the continuity of the reaction process, the added medicament is not uniformly mixed with the waste water to influence the quality of effluent water, and the reaction adopts an aeration sludge discharge mode to cause subsequent precipitation to generate sludge and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a short-range inner Fenton series-connection outer Fenton strong oxidation device, which solves the problem of floating mud in a sedimentation tank after advanced oxidation, improves the catalytic efficiency of hydrogen peroxide in kitchen waste water treatment, reduces the dosage of ferrous ions in the Fenton reaction process, reduces the cost and has better water outlet effect.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides an outer fenton strong oxidation unit of fenton series connection in short-range, includes two upper and lower cell bodies, goes up the cell body and sets up two at least interior fenton reaction tanks, and lower cell body sets up outer fenton reaction tank and sedimentation tank side by the horizontal direction, sets up the curb plate between outer fenton reaction tank and the sedimentation tank, the upper and lower both sides of curb plate all set up the export, outer fenton reaction tank top sets up the weir, crosses weir and curb plate formation water passageway, and the water inlet of outer fenton reaction tank is connected to the delivery port of every interior fenton reaction tank, and sedimentation tank lateral wall top sets up the delivery port.
According to the utility model, the inner Fenton reaction tank is arranged at the upper part for adding chemicals, the reaction conditions are adjusted for pre-reaction, then the mixture enters the outer Fenton reaction tank for reaction, and then the separation effect of mud and water after the reaction is increased through the cooperation of the water weir and the side plate, so that the water outlet effect is clearer. However, in order to realize continuous treatment of kitchen waste water, continuous addition of chemicals is required, but continuous addition of chemicals causes the dosage of chemicals to fluctuate within a range, for example, the pH is generally controlled between 2 and 3, when the pH is greater than 3, the addition of acid is automatically increased, and when the pH is less than 2, the addition of acid is automatically decreased, so that the optimal conditions of reaction are difficult to achieve, and the reaction efficiency is reduced. In order to simultaneously realize continuous treatment and control the reaction condition to be a fixed value, the utility model is provided with at least two inner Fenton reaction tanks, and intermittent operation is carried out through the specific volume of the inner Fenton reaction tanks, so that the reaction condition in one inner Fenton reaction tank is controlled to be an optimal value, and then the reaction is continuously carried out, at the moment, the reaction condition in the other inner Fenton reaction tank is conditioned, and the reaction conditions of a plurality of inner Fenton reaction tanks are intermittently operated, so that the control condition can be realized to be a desired fixed value rather than a range, and simultaneously, the whole system can be continuously operated rather than intermittent operation.
Furthermore, each inner Fenton reaction tank is internally provided with an aeration device. Can realize stirring effect and ensure that the added medicament fully reacts with the wastewater.
Further, an iron-carbon filler is arranged in each inner Fenton reaction tank. Under the action of aeration, iron-carbon filler arranged in the inner Fenton reaction tank can form a miniature primary battery in the tank body, so that the micro-electrolysis effect is realized.
Furthermore, each inner Fenton reaction tank is connected with the outer Fenton reaction tank through an inner circulating pipe.
Further, the bottom of the outer Fenton reaction tank is provided with a slope. The slope makes the mud automatic landing to the sedimentation tank. The slope gradient is 5-10%.
Further, a slope is provided with a mud scraper. The automatic cleaning device can work regularly to clean accumulated mud which cannot automatically slide down.
Further, the bottom of the sedimentation tank is provided with a mud bucket, and the sludge at the bottom of the outer Fenton reaction tank enters the mud bucket through an outlet on the lower side of the side plate.
Furthermore, the bottom of the overflow weir is provided with water holes. Ensure that the effluent of the outer Fenton reaction tank is clear.
Further, the pore diameter of the water passing hole is in the order of millimeter. Can filter suspended matters in the wastewater better.
Further, the number of the inner Fenton reaction tanks is 3. One is used for adding drugs to adjust reaction conditions, the other is used for carrying out pre-reaction after adding the drugs, and the other is used for entering an outer Fenton reaction tank after the pre-reaction.
Furthermore, each inner Fenton reaction pool is internally provided with automatic dosing equipment and detection equipment, and the dosing amount of the automatic dosing equipment is adjusted through the detection equipment.
The utility model has the beneficial effects that:
according to the utility model, the multiple inner Fenton reaction tanks are intermittently operated, so that the Fenton reaction conditions are accurately controlled, especially the dosing amount is accurately controlled, the strong oxidation reaction effect is better, and the efficiency is higher; the aeration device arranged in the inner Fenton reaction tank realizes the stirring effect, can provide an oxygen transmission medium for micro-electrolysis and reduces the cost; ferrous ions generated by the inner Fenton microelectrolysis reaction can be used as an outer Fenton ferrous ion source, so that the using amount of a medicament is reduced, and the cost is reduced; the slope is established to outer fenton reaction tank bottom, adopts the mud scraper to go out mud, and the weir is established on upper portion, makes the play water effect more clear.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a schematic structural diagram of a short-range internal Fenton tandem external Fenton strong oxidation apparatus according to an embodiment of the present invention;
the system comprises a water inlet pipe 1, an automatic medicine feeding and detecting device 2, an internal Fenton reaction tank 3, a filler zone 4, an internal circulating pipe 5, an external Fenton reaction tank 6, a mud scraper 7, a water-passing weir 8, a sedimentation tank 9 and a water outlet pipe 10.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In view of the problems of poor quality of effluent, floating mud and the like in the existing Fenton reaction device for treating kitchen waste water, the utility model provides a short-range inner Fenton series-connection outer Fenton strong oxidation device.
The utility model provides a short-range inner Fenton serial outer Fenton strong oxidation device which comprises an upper pool body and a lower pool body, wherein the upper pool body is provided with at least two inner Fenton reaction pools, the lower pool body is provided with an outer Fenton reaction pool and a sedimentation pool in parallel in the horizontal direction, a side plate is arranged between the outer Fenton reaction pool and the sedimentation pool, the upper side and the lower side of the side plate are respectively provided with an outlet, the top of the outer Fenton reaction pool is provided with a water passing weir, the water passing weir and the side plate form a water channel, the water outlet of each inner Fenton reaction pool is connected with the water inlet of the outer Fenton reaction pool, and the water outlet is arranged above the side wall of the sedimentation pool.
According to the utility model, the inner Fenton reaction tank is arranged at the upper part for adding chemicals, the reaction conditions are adjusted for pre-reaction, then the mixture enters the outer Fenton reaction tank for reaction, and then the separation effect of mud and water after the reaction is increased through the cooperation of the water weir and the side plate, so that the water outlet effect is clearer. Set up two at least interior fenton reaction ponds simultaneously, through the specific volume of interior fenton reaction pond, carry out intermittent operation to the reaction condition in controlling one interior fenton reaction pond is the optimum, and the reaction continues again, and at this moment, the reaction condition of another interior fenton reaction pond of rethread condition, through the intermittent operation of a plurality of interior fenton reaction ponds, can realize that the control condition is at a desired definite value, and not the scope, can satisfy whole system continuous operation simultaneously again, and not intermittent operation.
In some embodiments of this embodiment, an aeration device is disposed in each inner Fenton reaction tank to increase the reaction efficiency of the chemical agent and the kitchen waste water.
In order to increase the treatment effect of the kitchen waste water, in one or more embodiments, an iron-carbon filler is arranged in each inner Fenton reaction tank. The iron-carbon filler arranged in the inner Fenton reaction tank can form a micro primary battery in the tank body under the action of aeration, so that the micro-electrolysis effect is realized, and the treatment effect of kitchen waste water is improved.
In order to more conveniently connect the inner and outer fenton reaction cells, in some examples of this embodiment, each inner fenton reaction cell is connected to the outer fenton reaction cell by an inner circulation pipe.
In order to prevent the sludge generated after the fenton reaction from depositing in the outer fenton reaction tank, in some embodiments of the embodiment, a slope is provided at the bottom of the outer fenton reaction tank. The slope makes the mud automatic landing to the sedimentation tank. The slope gradient is 5-10%.
To further avoid sludge settling, in one or more embodiments, the ramp is provided with a mud scraper. The automatic cleaning device can work regularly to clean accumulated mud which cannot automatically slide down.
In order to facilitate the collection of the sludge after the fenton reaction in the sedimentation tank, in some embodiments of the present embodiment, a hopper is disposed at the bottom of the sedimentation tank, and the sludge at the bottom of the outer fenton reaction tank enters the hopper through an outlet on the lower side of the side plate.
In order to ensure that the effluent of the outer Fenton reaction tank is clearer, in some examples of the embodiment, the bottom of the overflow weir is provided with water through holes.
To further filter suspended matter in the wastewater, in one or more embodiments, the pore size of the water passing holes is in the order of millimeters.
In order to better realize the continuous treatment of the kitchen waste water, in some examples of the embodiment, the number of the inner Fenton reaction tanks is 3. One is used for adding drugs to adjust reaction conditions, the other is used for carrying out pre-reaction after adding the drugs, and the other is used for entering an outer Fenton reaction tank after the pre-reaction.
In some embodiments of the embodiment, an automatic dosing device and a detection device are arranged in each inner fenton reaction pool, and the dosing amount of the automatic dosing device is adjusted through the detection device.
In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to specific embodiments.
Examples
A short-range inner Fenton series connection outer Fenton strong oxidation device is shown in figure 1 and comprises three inner Fenton reaction tanks 3, wherein the upper parts of the inner Fenton reaction tanks are connected with a water inlet pipe 1, and the lower parts of the inner Fenton reaction tanks are connected with an inner circulation pipe 5. Each inner Fenton reaction tank 3 is provided with an automatic chemical agent feeding and detecting device 2, and a filling area 4 (the filling is iron-carbon filling) is arranged in the middle; the outer Fenton reaction tank 6 is arranged at the lower parts of the three inner Fenton reaction tanks 3, the upper part of the side wall of the outer Fenton reaction tank 6 is communicated with the sedimentation tank 9, and the lower part of the side wall is communicated with a mud bucket of the sedimentation tank 9; a water outlet pipe 10 is arranged on one side of the sedimentation tank 9 far away from the outer Fenton reaction tank 6. The automatic chemical agent feeding and detecting device 2 comprises a pH meter, an ORP meter, a dosing pump and a PLC (programmable logic controller), wherein the pH meter is used for detecting a pH value and converting the pH value into an electric signal to be transmitted to the PLC, the OPR meter is used for detecting an oxidation-reduction potential and converting detected oxidation-reduction potential data into an electric signal to be transmitted to the PLC, and the PLC controls the dosing pump to add a chemical agent into the inner Fenton reaction tank according to the electric signal of the pH value and the electric signal of the oxidation-reduction potential.
The water inlet and outlet of each inner Fenton reaction tank 3 are controlled by an automatic chemical agent feeding and detecting device 2.
The bottom of the outer Fenton reaction tank 6 is provided with a slope of 5% -10%, the slope is provided with a mud scraper 7, and accumulated mud is removed by timing work.
The aeration device is arranged in the inner Fenton reaction tank 3, so that the stirring effect can be realized, the added medicament can fully react with the wastewater, an oxygen transmission medium can be provided in the wastewater body, and the micro-electrolysis reaction can be carried out while the Fenton reaction is carried out in the reaction tank.
The three inner Fenton reaction tanks 3 are intermittently operated, so that the Fenton reaction conditions are accurately controlled, particularly the dosing amount is accurately controlled, the strong oxidation reaction effect is better, and the efficiency is higher; the aeration device arranged in the inner Fenton reaction tank 3 not only realizes the stirring function, but also can provide an oxygen transmission medium for micro-electrolysis, thereby reducing the cost; ferrous ions generated by the inner Fenton microelectrolysis reaction can be used as an outer Fenton ferrous ion source, so that the using amount of a medicament is reduced, and the cost is reduced; the slope is established to outer fenton reaction tank 6 bottom, adopts mud scraper 7 to go out mud, and weir 8 is established on upper portion, makes the play water effect more clear.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a strong oxidation unit of outer fenton of fenton series connection in short-range, characterized by, including upper and lower two cell bodies, go up the cell body and set up two at least interior fenton reaction tanks, lower cell body sets up outer fenton reaction tank and sedimentation tank side by the horizontal direction, sets up the curb plate between outer fenton reaction tank and the sedimentation tank, the upper and lower both sides of curb plate all set up the export, outer fenton reaction tank top sets up the weir, crosses weir and curb plate formation water passageway, and the water inlet of outer fenton reaction tank is connected to the delivery port of every interior fenton reaction tank, and sedimentation tank lateral wall top sets up the delivery port.
2. The short-range inner-Fenton tandem outer-Fenton strong oxidation device according to claim 1, wherein an aeration device is arranged in each inner-Fenton reaction tank.
3. The short-range inner-Fenton tandem outer-Fenton strong oxidation device according to claim 1, wherein an iron-carbon filler is arranged in each inner-Fenton reaction tank.
4. The short-range inner-Fenton tandem outer-Fenton strong oxidation device according to claim 1, wherein each inner-Fenton reaction tank is connected to an outer-Fenton reaction tank through an inner circulation pipe.
5. The short-range inner-Fenton tandem outer-Fenton strong oxidation device according to claim 1, wherein a slope is arranged at the bottom of the outer-Fenton reaction tank.
6. The short-range inner Fenton in-series outer Fenton strong oxidation device according to claim 5, wherein a slope is provided with a mud scraper.
7. The short-range inner-Fenton serial outer-Fenton strong oxidation device as claimed in claim 1, wherein a hopper is arranged at the bottom of the settling tank, and sludge at the bottom of the outer-Fenton reaction tank enters the hopper through an outlet at the lower side of the side plate.
8. The short-range internal Fenton in-series external Fenton strong oxidizer of claim 1, wherein a water through hole is formed in the bottom of the water-passing weir.
9. The short-range inner-Fenton in-series outer-Fenton strong oxidation device according to claim 8, wherein the pore size of the water through holes is in mm.
10. The short-range inner-Fenton tandem outer-Fenton strong oxidation device according to claim 1, wherein there are 3 inner-Fenton reaction cells.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121708345 | 2021-07-26 | ||
| CN2021217083454 | 2021-07-26 |
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| Publication Number | Publication Date |
|---|---|
| CN215667534U true CN215667534U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121771367.5U Active CN215667534U (en) | 2021-07-26 | 2021-07-30 | Short-range inner Fenton series-connection outer Fenton strong oxidation device |
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| CN (1) | CN215667534U (en) |
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2021
- 2021-07-30 CN CN202121771367.5U patent/CN215667534U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 215500 Text Road of Yushan High-tech Industrial Park, Changshu City, Jiangsu Province Patentee after: Jiangsu CRRC Huateng Environmental Protection Technology Co.,Ltd. Address before: 215500 Text Road of Yushan High-tech Industrial Park, Changshu City, Jiangsu Province Patentee before: JIANGSU ZHONGCHE ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |