CN219771837U - Electrochemical reaction and flocculation precipitation integrated device and wastewater treatment system - Google Patents
Electrochemical reaction and flocculation precipitation integrated device and wastewater treatment system Download PDFInfo
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- CN219771837U CN219771837U CN202321145703.4U CN202321145703U CN219771837U CN 219771837 U CN219771837 U CN 219771837U CN 202321145703 U CN202321145703 U CN 202321145703U CN 219771837 U CN219771837 U CN 219771837U
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- 238000005189 flocculation Methods 0.000 title claims abstract description 123
- 230000016615 flocculation Effects 0.000 title claims abstract description 123
- 238000003487 electrochemical reaction Methods 0.000 title claims abstract description 67
- 238000001556 precipitation Methods 0.000 title claims abstract description 64
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 238000006243 chemical reaction Methods 0.000 claims abstract description 55
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000004062 sedimentation Methods 0.000 claims description 43
- 239000002351 wastewater Substances 0.000 claims description 33
- 239000010802 sludge Substances 0.000 claims description 32
- 238000005192 partition Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 12
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- 239000000126 substance Substances 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 238000006864 oxidative decomposition reaction Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
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- 230000009286 beneficial effect Effects 0.000 description 3
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- 238000000354 decomposition reaction Methods 0.000 description 3
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of wastewater treatment, and provides an electrochemical reaction and flocculation precipitation integrated device and a wastewater treatment system, which comprise an electrochemical reaction tank and a flocculation precipitation tank, wherein the design of combining heavy metal ion removal, organic matter oxidative decomposition and flocculation precipitation is carried out, so that the process is simplified, the separation effect is enhanced, a water inlet component, an electrode component and a water receiving component are sequentially arranged in the electrochemical reaction tank, the flocculation precipitation tank is sequentially communicated with a flocculation reaction unit, a precipitation unit and a drainage unit, in the wastewater treatment process, electric power is adopted to replace the addition of various medicaments, other substances are not introduced into a water body or are not introduced as much as possible, secondary pollution is avoided, only the voltage, the current and the frequency of a power supply are controlled in the treatment process, complicated dosing and detection means are not needed, and the application is wider.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to an electrochemical reaction and flocculation precipitation integrated device and a wastewater treatment system.
Background
The domestic treatment route for the coal chemical wastewater is as follows: pretreatment, membrane integration concentration decrement and high-concentration brine reclamation, and the pretreatment unit in the whole treatment process is very critical according to each production state of operation.
The pretreatment technology with wider application range at present is a triple box flocculation precipitation treatment technology, which aims at removing each metal ion in the wastewater of coal chemical industry by adding corresponding medicaments, for example: when calcium and magnesium ions are removed, lime and sodium carbonate combination, caustic soda and sodium carbonate combination and the like are required to be added according to water quality;
however, the triple box flocculation precipitation production process is complex, various ions in wastewater can interfere with each other when medicines are added, the design of the flocculation precipitation process and the hydraulic conditions during production operation are required to be high in consistency, the medicine adding system is very complicated when various components are removed, on-line monitoring equipment is required to be installed, the operation cost is high, a large amount of medicines are added to cause secondary pollution of a water body, the solubility of each precipitate can be changed under the condition of high salt, and the separation effect is poor.
Disclosure of Invention
The utility model provides an electrochemical reaction and flocculation precipitation integrated device and a wastewater treatment system, which are used for solving the problems of complex flocculation precipitation treatment process and poor precipitate separation effect of a triple tank.
A first aspect of the present utility model provides an electrochemical reaction and flocculation precipitation integrated device comprising:
the electrochemical reaction tank is internally provided with a water inlet assembly, an electrode assembly and a water receiving assembly in sequence, wherein the electrode assemblies are arranged into a plurality of groups and distributed between the water inlet assembly and the water receiving assembly, the electrode assembly is used for carrying out electrochemical reaction on wastewater, and the water receiving assembly is used for collecting the wastewater after the electrochemical reaction;
the flocculation sedimentation tank is internally and sequentially communicated with a flocculation reaction unit, a sedimentation unit and a drainage unit, wherein the flocculation reaction unit is communicated with the water receiving assembly, the flocculation reaction unit is used for adding a coagulant aid to perform flocculation reaction, and the sedimentation unit is used for separating wastewater after flocculation reaction;
and the sludge discharge assembly is respectively arranged at the bottoms of the electrochemical reaction tank and the flocculation sedimentation tank and is used for discharging sludge in the wastewater.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the electrode assembly comprises the anode plate and the cathode, the anode plate is of a trapezoid bending structure with opposite directions, a plurality of water outlets are uniformly distributed on the anode plate, the cathode is of a tubular structure, and the cathode is arranged in the trapezoid bending structure and keeps a set distance from three surfaces of the trapezoid bending structure.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the water inlet component and the water receiving component are respectively arranged at two sides of the tank body, the tank body is provided with the first partition board for separating the water inlet component and the water receiving component, and the bottom of the first partition board is kept at a set distance from the bottom of the tank;
the water inlet assembly and the water receiving assembly comprise pipeline assemblies, and water holes are uniformly formed in the pipeline assemblies.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the flocculation reaction unit, the precipitation unit and the drainage unit are sequentially separated by the second partition board, the bottom of the second partition board between the flocculation reaction unit and the precipitation unit is kept at a set distance from the bottom of the tank, and the precipitation unit and the drainage unit are communicated through the top of the second partition board.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the flocculation reaction unit comprises a plurality of folded plates with opposite inclination directions, the folded plates are sequentially and alternately distributed from the top to the bottom of the tank body at intervals, the top of the flocculation reaction unit is provided with a water inlet pipe, and the water inlet pipe is communicated with the pipeline assembly of the water receiving assembly.
According to the integrated device for electrochemical reaction and flocculation precipitation provided by the utility model, the precipitation unit comprises a plurality of inclined pipes, the inclined pipes are uniformly arranged at intervals, and the inclined pipes are used for carrying out precipitation separation on wastewater passing through the flocculation reaction unit.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the top of the second partition plate between the precipitation unit and the drainage unit is level with the inclined tube;
the drainage unit comprises a drainage main pipe and a plurality of groups of drainage branch pipes, the drainage main pipe and the plurality of groups of drainage branch pipes are horizontally arranged at the top of the drainage unit, the drainage main pipe and the plurality of groups of drainage branch pipes are respectively communicated, drainage holes are uniformly distributed on the plurality of groups of drainage branch pipes, and the drainage main pipe is connected with an external drainage pipeline.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the tops of the electrochemical reaction tank and the flocculation precipitation tank are also provided with the slag scraping machine, and the slag scraping machine is used for scraping slag generated in wastewater treatment.
According to the electrochemical reaction and flocculation precipitation integrated device provided by the utility model, the sludge discharge assembly comprises a sludge discharge pipeline and jet flow sludge discharge devices, wherein the jet flow sludge discharge devices are uniformly distributed in the sludge discharge pipeline, and the sludge discharge pipeline is arranged at the bottoms of the electrochemical reaction tank and the flocculation precipitation tank.
In a second aspect the utility model provides a wastewater treatment system comprising an electrochemical reaction and flocculation precipitation integrated device as described above.
The beneficial effects are that: the electrochemical reaction and flocculation precipitation integrated device provided by the utility model comprises an electrochemical reaction tank and a flocculation precipitation tank, wherein the design of combining heavy metal ion removal, organic matter oxidative decomposition and flocculation precipitation is carried out, and the reactions such as redox decomposition, electrode adsorption and flocculation precipitation are combined, so that the process is simplified, the effect of simultaneous removal is achieved, and the separation effect is enhanced.
The electrochemical reaction tank is internally provided with a water inlet component, an electrode component and a water receiving component in sequence, the flocculation sedimentation tank is sequentially communicated with a flocculation reaction unit, a sedimentation unit and a drainage unit, the flocculation reaction unit is communicated with the water receiving component, the flocculation reaction unit is used for adding a coagulant aid to perform flocculation reaction, the sedimentation unit is used for separating the wastewater after flocculation reaction, in the wastewater treatment process, electric power is adopted to replace adding various medicaments, other substances are not introduced into the water body or are introduced as little as possible, secondary pollution is avoided, only the voltage, the current and the frequency of a power supply are controlled in the treatment process, complicated dosing and detection means are not needed, and the application is wider.
Further, the wastewater treatment system according to the present utility model has the above-described electrochemical reaction and flocculation and precipitation integrated device, and thus has various advantages as described above.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall schematic diagram of an electrochemical reaction and flocculation precipitation integrated device in an embodiment of the utility model;
FIG. 2 is a schematic view showing the internal structure of an electrochemical reaction cell according to an embodiment of the present utility model;
FIG. 3 is a front view of a flocculation sedimentation tank in an embodiment of the present utility model;
FIG. 4 is a schematic view showing the internal structure of a flocculation sedimentation tank in the embodiment of the present utility model;
fig. 5 is a schematic view of the structure of an electrode assembly in an embodiment of the present utility model;
FIG. 6 is a schematic view showing the structure of a drainage unit according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of a wastewater treatment process in an embodiment of the utility model.
Reference numerals:
1. an electrochemical reaction tank; 11. a water inlet assembly; 12. an electrode assembly; 13. a water receiving assembly; 14. an anode plate; 15. a cathode; 16. a first separator; 17. a pipeline assembly;
2. a flocculation sedimentation tank; 21. a flocculation reaction unit; 22. a precipitation unit; 23. a drainage unit; 24. a second separator; 25. a folded plate; 26. a water inlet pipe; 27. a chute; 28. a water drain header; 29. drainage branch pipes;
3. a mud discharging assembly; 31. a mud discharge pipeline; 32. a jet mud discharger;
4. a slag scraping machine.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The pretreatment technology with wider application range at present is a triple box flocculation precipitation treatment technology, which aims at removing each metal ion in the wastewater of coal chemical industry by adding corresponding medicaments, for example: when calcium and magnesium ions are removed, lime and sodium carbonate combination, caustic soda and sodium carbonate combination and the like are required to be added according to water quality;
however, the triple box flocculation precipitation production process is complex, various ions in wastewater can interfere with each other when medicines are added, the design of the flocculation precipitation process and the hydraulic conditions during production operation are required to be high in consistency, the medicine adding system is very complicated when various components are removed, on-line monitoring equipment is required to be installed, the operation cost is high, a large amount of medicines are added to cause secondary pollution of a water body, the solubility of each precipitate can be changed under the condition of high salt, and the separation effect is poor.
The electrochemical reaction tank and the flocculation sedimentation tank are combined into an integrated device, the heavy metal ions are removed, the oxidative decomposition of the organic matters and the flocculation sedimentation are treated together, and the oxidation-reduction decomposition, the electrode adsorption, the flocculation sedimentation and other reactions carried out in the tank body are combined, so that the process is simplified, the effect of simultaneous removal is achieved, and the separation effect is enhanced.
The electrochemical reaction tank is internally provided with a water inlet component, an electrode component and a water receiving component in sequence, the flocculation sedimentation tank is sequentially communicated with a flocculation reaction unit, a sedimentation unit and a drainage unit, the flocculation reaction unit is communicated with the water receiving component, the flocculation reaction unit is used for adding a coagulant aid to perform flocculation reaction, the sedimentation unit is used for separating the wastewater after flocculation reaction, in the wastewater treatment process, electric power is adopted to replace adding various medicaments, other substances are not introduced into the water body or are introduced as little as possible, secondary pollution is avoided, only the voltage, the current and the frequency of a power supply are controlled in the treatment process, complicated dosing and detection means are not needed, and the application is wider.
As shown in fig. 1 to 4, the electrochemical reaction tank and flocculation sedimentation tank integrated device provided by the embodiment of the utility model comprises an electrochemical reaction tank 1 and a flocculation sedimentation tank 2, wherein a water inlet assembly 11, an electrode assembly 12 and a water receiving assembly 13 are sequentially arranged in the electrochemical reaction tank 1, the electrode assemblies 12 are arranged into a plurality of groups and distributed between the water inlet assembly 11 and the water receiving assembly 13, wastewater to be treated enters the electrochemical reaction tank 1 through the water inlet assembly 11, electrochemical reaction is carried out through the electrode assembly 12, and the wastewater after the electrochemical reaction is collected by the water receiving assembly 13 for further treatment.
The flocculation sedimentation tank 2 is internally and sequentially communicated with a flocculation reaction unit 21, a sedimentation unit 22 and a drainage unit 23, the flocculation reaction unit 21 is communicated with the water receiving component 13, the wastewater after electrochemical reaction is collected by the water receiving component 13, enters the flocculation reaction unit 21 for flocculation reaction, coagulant aids can be added according to the situation in the process to promote flocculation reaction, and finally the sedimentation unit 22 carries out sedimentation separation on the wastewater after flocculation reaction, and the sludge discharge component 3 is respectively arranged at the bottoms of the electrochemical reaction tank 1 and the flocculation sedimentation tank 2 and discharges sludge in the wastewater at any time in the wastewater treatment process.
In the embodiment of the utility model, the electrochemical reaction tank 1 and the flocculation sedimentation tank 2 are combined into an integrated device, the heavy metal ions are removed, the oxidative decomposition of organic matters and the flocculation sedimentation are treated together, and the oxidation-reduction decomposition, the electrode adsorption, the flocculation sedimentation and other reactions carried out in the tank body are combined, so that the process is simplified, the effect of simultaneous removal is achieved, and the separation effect is enhanced.
The water inlet component 11, the electrode component 12 and the water receiving component 13 which are sequentially arranged in the electrochemical reaction tank 1, the flocculation sedimentation tank 2 is sequentially communicated with the flocculation reaction unit 21, the sedimentation unit 22 and the drainage unit 23, various medicaments are replaced by electric power in the wastewater treatment process, other substances are not introduced into the water body or are introduced as little as possible, secondary pollution is avoided, only the voltage, the current and the frequency of a power supply are controlled in the treatment process, complicated medicament adding and detecting means are not needed, and the application is wider.
As shown in fig. 5, the electrode assembly 12 in some embodiments of the present utility model includes an anode plate 14 and a cathode 15, the anode plate 14 has a trapezoid bending structure with opposite directions, a plurality of water outlets are uniformly distributed on the anode plate 14, wastewater to be treated flows through the anode plate 14 through the water outlets for electrochemical reaction, the cathode 15 has a tubular structure, and the cathode 15 is disposed in the trapezoid bending structure and keeps a set distance from three sides of the trapezoid bending structure. The anode plate 14 adopts a trapezoid bending structure, which is beneficial to improving the discharge efficiency of the electrode, and the cathode 15 is placed in the trapezoid bending structure of the anode plate 14, so that the structure of a combined electrode is formed, the reduction reaction of in-situ ferrous ions and double-electron oxygen is ensured, the generation of free hydroxyl of an oxide substance is increased, the efficient performance of Fenton chemical reaction of the electrode oxidation reaction is ensured, the formation of a precipitate is improved, and the separation effect is enhanced.
As shown in fig. 2, in some embodiments of the present utility model, the water inlet assembly 11 and the water receiving assembly 13 are respectively disposed at two sides of the tank body, the tank body is provided with a first partition plate 16 for separating the water inlet assembly 11 and the water receiving assembly 13, the bottom of the first partition plate 16 keeps a set distance from the tank bottom, the flow path of the wastewater in the tank body is in a U shape due to the arrangement of the first partition plate 16, the reaction time of the wastewater in the tank body is increased, and a part of sludge in the wastewater can be precipitated at the tank bottom, and discharged by the sludge discharge assembly 3, so that the primary precipitation effect is achieved, and the separation effect is enhanced.
The water inlet assembly 11 and the water receiving assembly 13 are respectively provided with water inlet holes and water receiving holes by the pipeline assembly 17, the pipeline assembly 17 can be uniformly distributed on the tank top, and the water inlet holes and the water receiving holes on the pipeline assembly 17 enable the flow of water to be layered, so that the uniformity in the wastewater treatment process is ensured, and the separation effect is enhanced.
As shown in fig. 4, in some embodiments of the present utility model, the flocculation reaction unit 21, the sedimentation unit 22 and the drainage unit 23 are sequentially separated by the second partition 24, the bottom of the second partition 24 between the flocculation reaction unit 21 and the sedimentation unit 22 is kept at a set distance from the bottom of the tank, the sedimentation unit 22 and the drainage unit 23 are communicated through the top of the second partition 24, and the second partition 24 has the same function as the first partition 16, which is not described herein.
As shown in fig. 4, the flocculation reaction unit 21 in some embodiments of the present utility model includes a plurality of flaps 25 with opposite inclination directions, the flaps 25 are sequentially and alternately distributed from the top of the tank body to the bottom, i.e., a plurality of flaps 25 are fixed on one side of the tank wall in the flocculation reaction unit 21, a plurality of flaps 25 are also fixed on one side of the second partition plate 24, the flaps on both sides are sequentially and alternately crossed and are inclined toward the center of the flocculation reaction unit 21, a water inlet pipe 26 is provided at the top of the flocculation reaction unit 21, the water inlet pipe 26 is communicated with the pipeline assembly 17 of the water receiving assembly 13, a dosing interface (not shown in the figure) may be provided on the water inlet pipe 26, and a coagulant aid may be added on the water inlet pipe 26 according to the condition of treating water quality. The wastewater subjected to electrochemical reaction enters the flocculation reaction unit 21 through the pipeline assembly 17 of the water receiving assembly 13 and the water inlet pipe 26, and the flow path of the wastewater is S-shaped through the folded plates 25 which are alternately arranged, so that the reaction time of the wastewater and the coagulant aid can be prolonged, more flocculation sediment is produced in the wastewater, and the separation effect is enhanced.
As shown in fig. 4, in other embodiments of the present utility model, the flap 25 in the flocculation reaction unit 21 may also be inclined in a direction opposite to the center of the flocculation reaction unit 21, so that the above technical effects may still be achieved, which will not be described herein.
The sedimentation unit 22 in some embodiments of the present utility model comprises a plurality of inclined pipes 27, the plurality of inclined pipes 27 are uniformly arranged at intervals on the upper half part of the sedimentation unit 22, water flows into the sedimentation unit 22 through the bottom of the second partition board 24 after flocculation reaction, the water flow slowly rises upwards from the bottom of the sedimentation unit 22, the flocculated sediment and the sludge gradually realize sedimentation separation on the wastewater passing through the flocculation reaction unit 21 along with the downward sliding of the inclined pipes 27 along with the rising of the water flow slowly flowing through the inclined pipes 27, so that the separation effect is enhanced, and the flocculated sediment and the sludge are discharged through the sludge discharge assembly 3 arranged at the bottom of the tank.
In some embodiments of the present utility model, the top of the second partition 24 between the settling unit 22 and the drainage unit 23 is flush with the inclined pipe 27, so that water separated by the inclined pipe 27 enters the drainage unit 23 from the top of the second partition 24.
The drainage unit 23 comprises a drainage main pipe 28 and a plurality of groups of drainage branch pipes 29, the drainage main pipe 28 and the plurality of groups of drainage branch pipes 29 are horizontally arranged at the top of the drainage unit 23, the drainage main pipe 28 and the plurality of groups of drainage branch pipes 29 are respectively communicated, drainage holes are uniformly distributed in the plurality of groups of drainage branch pipes 29, the drainage main pipe 28 is connected with an external drainage pipeline, and the drainage main pipe 28 and the plurality of groups of drainage branch pipes 29 are horizontally arranged at the top of the drainage unit 23, so that the flow during drainage is discharged in a layered manner, the uniformity in the wastewater treatment process is ensured, and the separation effect is enhanced.
A water level controller (not shown in the figure) can be additionally arranged at the top of the water discharge unit 23 to ensure that water production and water discharge are cooperatively carried out.
An ion air floatation generator (not shown in the figure) can be additionally arranged at the bottom of the drainage unit 23 to flocculate suspended matters in water in the drainage unit 23 again, so that the separation effect is enhanced.
In some embodiments of the utility model, the tops of the electrochemical reaction tank 1 and the flocculation sedimentation tank 2 are also provided with a slag scraping machine 4, the slag scraping machine 4 is used for scraping slag generated in wastewater treatment, the slag scraping machine 4 can be arranged in the middle or at one side of the tank body, namely, the slag scraping machine 4 can scrape slag from the middle to two sides or scrape slag to one side, so that the normal operation of wastewater treatment is ensured.
The sludge discharging assembly 3 in some embodiments of the utility model comprises a sludge discharging pipeline 31 and a jet sludge discharging device 32, wherein the jet sludge discharging devices 32 are uniformly distributed in the sludge discharging pipeline 31, the sludge discharging pipeline 31 is arranged at the bottoms of the electrochemical reaction tank 1 and the flocculation sedimentation tank 2, the bottoms of the electrochemical reaction tank 1 and the flocculation sedimentation tank 2 can also be provided with funnel shapes, so that sludge in wastewater can be conveniently stored and discharged, and the jet sludge discharging device 32 is a sludge discharging device in the prior art, and the specific principle is not repeated here.
In fig. 7, the overall flow of wastewater treatment in some embodiments of the present utility model is shown, that is, wastewater to be treated first enters the electrochemical reaction tank 1, then enters the flocculation precipitation tank 2 after electrochemical reaction, and then is discharged after flocculation precipitation reaction.
On the other hand, the embodiment of the utility model also provides a wastewater treatment system, which comprises the electrochemical reaction and flocculation precipitation integrated device provided by any embodiment. The development of the beneficial effects of the treatment system according to the embodiments of the present utility model is substantially similar to that of the electrochemical reaction and flocculation precipitation integrated device described above, and therefore will not be described herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. Electrochemical reaction and flocculation precipitation integrated device, characterized by comprising:
the electrochemical reaction tank (1) is internally provided with a water inlet assembly (11), an electrode assembly (12) and a water receiving assembly (13) in sequence, wherein the electrode assemblies (12) are arranged in a plurality of groups and distributed between the water inlet assembly (11) and the water receiving assembly (13), the electrode assembly (12) is used for carrying out electrochemical reaction on wastewater, and the water receiving assembly (13) is used for collecting the wastewater after the electrochemical reaction;
the flocculation sedimentation tank (2) is internally and sequentially communicated with a flocculation reaction unit (21), a sedimentation unit (22) and a drainage unit (23), the flocculation reaction unit (21) is communicated with the water receiving component (13), the flocculation reaction unit (21) is used for adding a coagulant aid to perform flocculation reaction, and the sedimentation unit (22) is used for separating wastewater after flocculation reaction;
the sludge discharge assembly (3) is respectively arranged at the bottoms of the electrochemical reaction tank (1) and the flocculation sedimentation tank (2) and is used for discharging sludge in wastewater.
2. The electrochemical reaction and flocculation precipitation integrated device according to claim 1, wherein the electrode assembly (12) comprises an anode plate (14) and a cathode (15), the anode plate (14) has a trapezoid bending structure with opposite directions, a plurality of water outlets are uniformly distributed on the anode plate (14), the cathode (15) has a tubular structure, and the cathode (15) is arranged in the trapezoid bending structure and keeps a set distance from three surfaces of the trapezoid bending structure.
3. The electrochemical reaction and flocculation precipitation integrated device according to claim 1, wherein the water inlet assembly (11) and the water receiving assembly (13) are respectively arranged at two sides of a tank body, the tank body is provided with a first partition plate (16) for separating the water inlet assembly (11) and the water receiving assembly (13), and the bottom of the first partition plate (16) is kept at a set distance from the tank bottom;
the water inlet assembly (11) and the water receiving assembly (13) comprise pipeline assemblies (17), and water holes are uniformly formed in the pipeline assemblies (17).
4. An electrochemical reaction and flocculation precipitation integrated device according to claim 3, characterized in that said flocculation reaction unit (21), said precipitation unit (22) and said drainage unit (23) are separated in sequence by a second separator (24), the bottom of said second separator (24) between said flocculation reaction unit (21) and said precipitation unit (22) is kept at a set distance from the bottom of the tank, and said precipitation unit (22) and said drainage unit (23) are communicated through the top of said second separator (24).
5. The integrated electrochemical reaction and flocculation precipitation device according to claim 4, wherein the flocculation reaction unit (21) comprises a plurality of folded plates (25) with opposite inclination directions, the folded plates (25) are sequentially distributed at intervals from the top to the bottom of the tank body, a water inlet pipe (26) is arranged at the top of the flocculation reaction unit (21), and the water inlet pipe (26) is communicated with the pipeline assembly (17) of the water receiving assembly (13).
6. An electrochemical reaction and flocculation precipitation integrated device according to claim 4, characterized in that said precipitation unit (22) comprises a plurality of inclined pipes (27), a plurality of said inclined pipes (27) being arranged at uniform intervals, said inclined pipes (27) being used for precipitation separation of wastewater after passing through said flocculation reaction unit (21).
7. An electrochemical reaction and flocculation precipitation integrated device according to claim 6, characterized in that the top of the second partition (24) between the precipitation unit (22) and the drainage unit (23) is flush with the inclined tube;
the drainage unit (23) comprises a drainage main pipe (28) and a plurality of groups of drainage branch pipes (29), the drainage main pipe (28) and the plurality of groups of drainage branch pipes (29) are horizontally arranged at the top of the drainage unit (23), the drainage main pipe (28) and the plurality of groups of drainage branch pipes (29) are respectively communicated, drainage holes are uniformly distributed in the plurality of groups of drainage branch pipes (29), and the drainage main pipe is connected with an external drainage pipeline.
8. The electrochemical reaction and flocculation precipitation integrated device according to claim 1, wherein the top of the electrochemical reaction tank (1) and the top of the flocculation precipitation tank (2) are further provided with a slag scraping machine (4), and the slag scraping machine (4) is used for scraping slag generated in wastewater treatment.
9. The electrochemical reaction and flocculation precipitation integrated device according to claim 1, wherein the sludge discharging assembly (3) comprises a sludge discharging pipeline (31) and a jet sludge discharging device (32), the jet sludge discharging devices (32) are uniformly distributed in the sludge discharging pipeline (31), and the sludge discharging pipeline (31) is arranged at the bottoms of the electrochemical reaction tank (1) and the flocculation precipitation tank (2).
10. A wastewater treatment system comprising an electrochemical reaction and flocculation precipitation integrated device according to any one of claims 1-9.
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