CN212450767U - Nested electrochemical reaction device for sewage treatment - Google Patents
Nested electrochemical reaction device for sewage treatment Download PDFInfo
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- CN212450767U CN212450767U CN202020578281.XU CN202020578281U CN212450767U CN 212450767 U CN212450767 U CN 212450767U CN 202020578281 U CN202020578281 U CN 202020578281U CN 212450767 U CN212450767 U CN 212450767U
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- 239000010865 sewage Substances 0.000 title claims abstract description 28
- 238000003487 electrochemical reaction Methods 0.000 title claims abstract description 16
- 238000005189 flocculation Methods 0.000 claims abstract description 31
- 239000010802 sludge Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 230000016615 flocculation Effects 0.000 claims description 22
- 238000009297 electrocoagulation Methods 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 6
- TTXIPMFMHNUMTI-UHFFFAOYSA-N [Ir].[Rh].[Ti] Chemical compound [Ir].[Rh].[Ti] TTXIPMFMHNUMTI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
公开了一种污水处理嵌套式电化学反应装置，可用于油田污水的处理，所述反应装置包括：电絮凝反应器、电催化反应器、旋转电极、驱动所述旋转电极旋转的驱动系统；所述电絮凝反应器位于所述电催化反应器内，或所述电催化反应器位于所述电絮凝反应器内；所述电絮凝反应器上设有进水口，所述电絮凝反应器和所述电催化反应器通过管道流体连通，所述电絮凝反应器和所述电催化反应器上设有污泥流出口；所述旋转电极包括位于所述电絮凝反应器中的阳极和阴极，以及位于所述电催化反应器中的阳极和阴极。本公开的所述反应装置先对污水进行电絮凝处理，然后再进行电催化处理。可以提高水传质速率，提高电化学反应效率，降低能耗、设备体积和运行成本。
A nested electrochemical reaction device for sewage treatment is disclosed, which can be used for the treatment of oilfield sewage. The reaction device includes: an electro-flocculation reactor, an electro-catalytic reactor, a rotating electrode, and a driving system for driving the rotating electrode to rotate; The electro-flocculation reactor is located in the electro-catalytic reactor, or the electro-catalytic reactor is located in the electro-flocculation reactor; the electro-flocculation reactor is provided with a water inlet, and the electro-flocculation reactor and The electro-catalytic reactor is in fluid communication through a pipeline, and a sludge outflow port is provided on the electro-flocculation reactor and the electro-catalytic reactor; the rotating electrode includes an anode and a cathode located in the electro-flocculation reactor, and anode and cathode located in the electrocatalytic reactor. The reaction device of the present disclosure first performs electro-flocculation treatment on sewage, and then performs electro-catalytic treatment. It can improve water mass transfer rate, improve electrochemical reaction efficiency, reduce energy consumption, equipment volume and operating cost.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to novel nested formula electrochemical reaction device, can be used to the processing of oil field sewage.
Background
The process can produce thick oil sewage in the oil exploitation process, and the thick oil sewage has the characteristics of high temperature, serious emulsification, high oil content and suspended matter content, high silicon dioxide and hardness content and the like, and has great treatment difficulty. The treatment and resource utilization of the thick oil sewage at present are the direction of continuous exploration and the goal to be achieved in the sewage treatment in the petroleum development field.
The common treatment methods for industrial wastewater include electrocoagulation and electrocatalysis. The electric flocculation technology is that under the action of a direct current electric field, a soluble anode is utilized to generate metal cations, and the metal cations are hydrolyzed and polymerized to form a flocculating agent, so that pollutants in wastewater are removed. The electric flocculation technology has the characteristics of short reaction time, high treatment efficiency, no need of adding chemical agents and the like. The electrocatalytic oxidation technology is a novel efficient and clean wastewater treatment technology, and is applied to the treatment of organic wastewater difficult to degrade by many domestic and foreign scholars. The electrocatalytic oxidation utilizes a metal oxide electrode with catalytic performance to generate hydroxyl radicals (. OH) or other radicals and radicals with strong oxidizing capability through an electrochemical process to attack organic pollutants in a solution so as to decompose and mineralize the organic pollutants. The electrocatalytic oxidation technology has the advantages of high treatment efficiency, strong environmental adaptability, simple operation, no need of adding chemical agents, no secondary pollution, mild reaction conditions, good controllability, easy realization of automatic control and the like.
The existing sewage treatment device usually only contains one part of electrocatalysis or electrocoagulation, so that the pollutants in the sewage are not completely and thoroughly treated; or some devices set electrocatalysis and electroflocculation into two independent parts, which results in long treatment process, increased reactor volume, more occupied space and more energy consumption.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides a nested electrochemical reaction device for sewage treatment. Firstly, carrying out electric flocculation treatment on the sewage, and then carrying out electrocatalysis treatment. The device can realize uniform water distribution, improve the mass transfer efficiency, shorten the hydraulic retention time, improve the electrochemical reaction efficiency, simplify the design of the reactor, reduce the space used by the reactor, reduce the energy consumption and the operation cost and obviously improve the treatment effect of the reactor.
At least one embodiment of the present disclosure provides a nested electrochemical reaction device for wastewater treatment, comprising: the device comprises an electrocoagulation reactor, an electrocatalysis reactor, a rotating electrode and a driving system for driving the rotating electrode to rotate; the electric flocculation reactor is positioned in the electric catalytic reactor, or the electric catalytic reactor is positioned in the electric flocculation reactor; the electric flocculation reactor is provided with a water inlet, the electric flocculation reactor is in fluid communication with the electric catalytic reactor through a pipeline, and the electric flocculation reactor and the electric catalytic reactor are provided with sludge outflow ports; the rotating electrodes include an anode and a cathode in the electrocoagulation reactor, and an anode and a cathode in the electrocatalytic reactor.
In some examples, the anode and the cathode in the electrocoagulation reactor are an aluminum electrode and a graphite electrode, respectively.
In some examples, the anode and cathode in the electrocatalytic reactor are a titanium rhodium iridium electrode and a graphite electrode, respectively.
In some examples, the electrocoagulation reactor and the electrocatalytic reactor are coupled in a concentric cylinder structure having a top cover.
In some examples, the drive system includes a motor on the top cover, the motor coupled to the rotating electrode by a coupling through a hole in the center of the top cover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of a nested electrochemical reaction device for sewage treatment according to an embodiment of the present disclosure.
Detailed Description
The nested electrochemical reaction device 1 for sewage treatment is a concentric cylinder structure, wherein the inner layer can be an electric flocculation reactor, the outer layer 9 can be an electric catalytic reactor, the concentric cylinder structure is not equal in height, and the height of the inner layer cylinder is higher than that of the outer layer 9 cylinder. It is to be noted that the electrocoagulation reactor may also be in the outer layer 9, with the electrocatalytic reactor in the inner layer. The electric flocculation reactor and the electric catalysis reactor are communicated through a pipeline 8, a water inlet 10 is arranged on the electric flocculation reactor, and a sludge outflow port 11 is arranged on the electric flocculation reactor and the electric catalysis reactor.
The nested electrochemical reaction device for sewage treatment 1 is internally provided with a rotating electrode 3, the rotating electrode 3 is driven by a motor 6 to rotate, the motor 6 is arranged on a top cover 2 of the reaction device 1, and the motor 6 is connected with the rotating electrode 3 by a coupler 4. The rotating electrode 3 is connected to a dc power supply 5 via a slip ring 7. The rotating electrodes 3 comprise an anode and a cathode in the electrocoagulation reactor, and an anode and a cathode in the electrocatalytic reactor. The anode and the cathode in the electric flocculation reactor are respectively an aluminum electrode and a graphite electrode. The anode and the cathode in the electro-catalytic reactor are respectively a titanium rhodium iridium electrode and a graphite electrode.
In the sewage treatment process, sewage firstly enters the electric flocculation reactor through the water inlet 10 to be subjected to electric flocculation treatment, and most suspended matters in the sewage are removed through electrolysis and adsorption, so that the purpose of primary purification of the sewage is achieved. The sewage which is primarily purified flows into the electro-catalytic reactor from a pipeline 8 at the upper part of the electro-flocculation reactor, and is subjected to electro-catalytic treatment, organic substances in the sewage are oxidized and removed, and the sewage is further purified. The treated water flows out through a drain port on the electrocatalytic reactor and is collected.
After the sewage is treated by the electric flocculation and the electric catalysis, the sewage is precipitated and is discharged from the sludge discharge port 11 by the electric flocculation reactor and the sludge at the bottom of the electric catalysis reactor, the sludge discharge port 11 is connected with a sludge discharge pipe, a valve is arranged on the sludge discharge pipe, and the valve is opened to discharge sludge when the sludge is required to be regularly discharged.
Claims (5)
1. A nested electrochemical reaction device for sewage treatment is characterized by comprising: the device comprises an electrocoagulation reactor, an electrocatalysis reactor, a rotating electrode and a driving system for driving the rotating electrode to rotate; the electric flocculation reactor is positioned in the electric catalytic reactor, or the electric catalytic reactor is positioned in the electric flocculation reactor; the electric flocculation reactor is provided with a water inlet, the electric flocculation reactor is in fluid communication with the electric catalytic reactor through a pipeline, and the electric flocculation reactor and the electric catalytic reactor are provided with sludge outflow ports; the rotating electrodes include an anode and a cathode in the electrocoagulation reactor, and an anode and a cathode in the electrocatalytic reactor.
2. The nested electrochemical reaction device for wastewater treatment of claim 1, wherein the anode and the cathode in the electrocoagulation reactor are an aluminum electrode and a graphite electrode, respectively.
3. The nested electrochemical reaction device for wastewater treatment of claim 1, wherein the anode and cathode in the electrocatalytic reactor are titanium rhodium iridium electrode and graphite electrode, respectively.
4. The nested electrochemical reaction device for wastewater treatment of claim 1, wherein the electrocoagulation reactor and the electrocatalytic reactor are coupled in a concentric cylinder structure having a top cover.
5. The nested electrochemical reaction device for wastewater treatment of claim 4, wherein the drive system comprises a motor on the top cover, the motor passing through a hole at the center of the top cover, and being connected together by a coupling and the rotating electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578281.XU CN212450767U (en) | 2020-04-17 | 2020-04-17 | Nested electrochemical reaction device for sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578281.XU CN212450767U (en) | 2020-04-17 | 2020-04-17 | Nested electrochemical reaction device for sewage treatment |
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| CN212450767U true CN212450767U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115636521A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气股份有限公司 | Method for removing oil and silicon from high-temperature thick oil produced water |
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- 2020-04-17 CN CN202020578281.XU patent/CN212450767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115636521A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气股份有限公司 | Method for removing oil and silicon from high-temperature thick oil produced water |
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