CN113429033A - Electrocatalysis coupling high concentration organic waste water treatment method and equipment - Google Patents
Electrocatalysis coupling high concentration organic waste water treatment method and equipment Download PDFInfo
- Publication number
- CN113429033A CN113429033A CN202110656279.9A CN202110656279A CN113429033A CN 113429033 A CN113429033 A CN 113429033A CN 202110656279 A CN202110656279 A CN 202110656279A CN 113429033 A CN113429033 A CN 113429033A
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- treatment
- treatment tank
- organic wastewater
- concentration organic
- coupling high
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention provides an electrocatalysis coupling high-concentration organic wastewater treatment method and equipment. The electrocatalysis coupling high-concentration organic wastewater treatment method comprises the following steps: s1: carrying out clarification pretreatment on the organic wastewater; s2: performing clarification and buffering after electrolytic air flotation treatment; s3: introducing into an electrocatalytic coupling reactor to decompose the organic matters and release carbon dioxide to obtain clear water; s4: carrying out advanced treatment system treatment on the clean water treated by the electrocatalysis coupling reactor; s5: and finally, discharging or recycling the treated wastewater. The method and the equipment for treating the high-concentration organic wastewater by electrocatalysis coupling have the advantage of quickly and conveniently treating the organic wastewater.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a method and equipment for treating high-concentration organic wastewater through electrocatalysis coupling.
Background
Environmental protection, which is called environmental protection in its entirety, refers to the collective name of various actions that human beings take to solve real or potential environmental problems, coordinate the relationship between human beings and the environment, and guarantee the sustainable development of economy and society. The method and means of the method are engineering technology, administrative management, innovation research and development, legal, economic, propaganda and education and the like, and people pay attention to the environmental protection problem with the continuous development of science and technology.
The traditional method has low efficiency in the process of treating the organic wastewater.
Therefore, there is a need to provide a new method and apparatus for treating high concentration organic wastewater by electrocatalysis coupling.
Disclosure of Invention
The invention solves the technical problem of providing an electrocatalysis coupling high-concentration organic wastewater treatment method and device which can quickly and conveniently treat organic wastewater.
In order to solve the technical problem, the electrocatalysis coupling high-concentration organic wastewater treatment method provided by the invention comprises the following steps:
s1: carrying out clarification pretreatment on the organic wastewater;
s2: performing clarification and buffering after electrolytic air flotation treatment;
s3: introducing into an electrocatalytic coupling reactor to decompose the organic matters and release carbon dioxide to obtain clear water;
s4: carrying out advanced treatment system treatment on the clean water treated by the electrocatalysis coupling reactor;
s5: and finally, discharging or recycling the treated wastewater.
Preferably, in S2, the waste water and waste residue after the electrolytic air flotation treatment are collected.
Preferably, in the step S3, when the wastewater is clarified and buffered, a catalytic agent is added.
The invention also provides an electro-catalytic coupling high-concentration organic wastewater treatment device which comprises a clarification pretreatment tank, an electrolytic air flotation treatment tank, a clarification buffer tank and an electro-catalytic coupling reactor, wherein the clarification pretreatment tank, the electrolytic air flotation treatment tank, the clarification buffer tank and the electro-catalytic coupling reactor are sequentially connected.
Preferably, the electrolytic air-flotation treatment tank comprises a treatment tank, an electrolytic diaphragm is arranged in the treatment tank, a water pump is arranged on one side of the treatment tank, a collecting tank is arranged on one side of the treatment tank, which is far away from the water pump, two electrode plates are fixedly arranged at the bottom of the treatment tank, two internal thread pipes are rotatably arranged below the treatment tank, screw rods are arranged in the internal thread pipes, one ends, which are far away from each other, of the two screw rods respectively extend out of the corresponding internal thread pipes and are fixedly provided with first supporting frames, the top end of each first supporting frame is fixedly provided with a connecting rod, one ends, which are close to each other, of the two connecting rods both extend into the treatment tank, the connecting rods are connected with the side wall of the treatment tank in a sliding and sealing manner, scrapers are fixedly arranged at the bottoms of the connecting rods, and the scrapers are contacted with the tops of the corresponding electrode plates, two the one end fixed mounting that the internal thread pipe is close to each other has same dwang, be equipped with drive mechanism on the dwang, drive mechanism is used for controlling just reversing and the rotational speed of dwang.
Preferably, four rotating blocks are fixedly mounted at the bottom of the treatment tank, the internal thread pipe penetrates through the two corresponding rotating blocks, and the internal thread pipe is rotatably connected with the rotating blocks.
Preferably, the bottom fixed mounting of handling the pond has four supporting legs that are the rectangle and distribute, four fixed mounting has same backup pad on the supporting leg, drive mechanism installs in the backup pad.
Preferably, drive mechanism includes fixed mounting and establishes the first belt pulley in the transfer line outside with fixed cover the motor in the backup pad, fixed mounting has the second belt pulley on the output shaft of motor, first belt pulley with the outside cover of second belt pulley is equipped with same belt.
Preferably, the connecting rod is fixedly provided with a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is fixedly connected with the first support frame, and the second reinforcing rib is fixedly connected with the scraper.
Preferably, a rotating hole is formed in one side of the rotating block, a bearing is fixedly sleeved on the outer side of the internal threaded pipe, and the outer ring of the bearing is fixedly connected with the inner wall of the rotating hole.
Compared with the related technology, the electrocatalysis coupling high-concentration organic wastewater treatment method and the device provided by the invention have the following beneficial effects:
the invention provides a method and equipment for treating high-concentration organic wastewater through electrocatalysis coupling, which can quickly and conveniently treat organic matters in wastewater by adding an electrolysis air flotation treatment and an electrocatalysis coupling reactor in the normal water treatment process, decompose the organic matters in the wastewater, and quickly treat the wastewater rich in the organic matters to reach the discharge standard through normal wastewater treatment.
Drawings
FIG. 1 is a flow chart of the electrocatalytic coupling high-concentration organic wastewater treatment method provided by the invention;
FIG. 2 is a schematic structural diagram of an electrolytic air-flotation treatment tank in an electro-catalytic coupling high-concentration organic wastewater treatment device;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged schematic view of a portion B shown in fig. 2.
Reference numbers in the figures: 1. the device comprises a treatment pool, 2, an electrolytic diaphragm, 3, a water pump, 4, a collecting tank, 5, an electrode plate, 6, an internal threaded pipe, 7, a screw rod, 8, a first supporting frame, 9, a connecting rod, 10, a scraping plate, 11, a rotating rod, 12, a first belt pulley, 13, a supporting leg, 14, a supporting plate, 15, a motor, 16, a second belt pulley, 17, a belt, 18 and a rotating block.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a flow chart of a method for treating high concentration organic wastewater by electrocatalysis coupling; FIG. 2 is a schematic structural diagram of an electrolytic air-flotation treatment tank in an electro-catalytic coupling high-concentration organic wastewater treatment device; FIG. 3 is an enlarged view of portion A of FIG. 2; fig. 4 is an enlarged schematic view of a portion B shown in fig. 2. The electrocatalysis coupling high-concentration organic wastewater treatment method comprises the following steps:
s1: the organic wastewater is subjected to clarification pretreatment, so that coarse impurities in the organic wastewater can be precipitated, and the burden of subsequent treatment steps can be reduced;
s2: the electrolytic air flotation treatment is carried out, then clarification and buffering are carried out, the electrolytic air flotation treatment can be used for introducing direct current into the sewage containing electrolyte as an electrolytic medium for electrolysis, three effects, namely electrolytic oxidation, electrolytic coagulation and electrolytic air flotation can be simultaneously carried out, organic matters in the wastewater can be preliminarily oxidized, and the organic matters in the wastewater can float on the water surface through bubbles;
s3: the organic matters are decomposed by introducing an electro-catalytic coupling reactor and carbon dioxide is released to obtain clear water, so that the organic matters in the wastewater can be thoroughly decomposed and the carbon dioxide is discharged;
s4: clear water treated by the electro-catalytic coupling reactor is treated by an advanced treatment system, and waste water treated by organic matters is treated by utilizing the traditional waste water treatment process, so that the safe discharge standard is reached;
s5: and finally, discharging or recycling the treated wastewater.
And in the step S2, collecting the waste water and the waste residues subjected to the electrolytic air flotation treatment.
When the wastewater is clarified and buffered in the S3, the catalytic agent is added, and the rapid precipitation of impurities in the wastewater can be accelerated by adding the catalytic agent.
The invention also provides an electro-catalytic coupling high-concentration organic wastewater treatment device which comprises a clarification pretreatment tank, an electrolytic air flotation treatment tank, a clarification buffer tank and an electro-catalytic coupling reactor, wherein the clarification pretreatment tank, the electrolytic air flotation treatment tank, the clarification buffer tank and the electro-catalytic coupling reactor are sequentially connected.
The electrolytic air-flotation treatment tank comprises a treatment tank 1, an electrolytic diaphragm 2 is arranged in the treatment tank 1, a water pump 3 is arranged on one side of the treatment tank 1, a collecting tank 4 is arranged on one side of the treatment tank 1 far away from the water pump 3, two electrode plates 5 are fixedly arranged at the bottom of the treatment tank 1, two internal thread pipes 6 are rotatably arranged below the treatment tank 1, screw rods 7 are arranged in the internal thread pipes 6, one ends of the two screw rods 7 far away from each other respectively extend out of the corresponding internal thread pipes 6 and are fixedly provided with first supporting frames 8, a connecting rod 9 is fixedly arranged at the top end of each first supporting frame 8, one ends of the two connecting rods 9 close to each other respectively extend into the treatment tank 1, the connecting rods 9 are connected with the side wall of the treatment tank 1 in a sliding sealing manner, and scrapers 10 are fixedly arranged at the bottom of the connecting rods 9, scraper blade 10 and corresponding the top of plate electrode 5 contacts, two the one end fixed mounting that internal thread pipe 6 is close to each other has same dwang 11, be equipped with drive mechanism on the dwang 11, drive mechanism is used for controlling the positive and negative rotation and the rotational speed of dwang 11.
Four turning blocks 18 are fixedly mounted at the bottom of the treatment tank 1, the internal thread pipe 6 penetrates through the two corresponding turning blocks 18, and the internal thread pipe 6 is rotatably connected with the turning blocks 18.
The bottom fixed mounting of handling pond 1 has four supporting legs 13 that are the rectangle and distribute, four fixed mounting has same backup pad 14 on the supporting leg 13, drive mechanism installs on the backup pad 14.
Drive mechanism includes fixed mounting and establishes the first belt pulley 12 in the transfer line 11 outside with fixed cover motor 15 in the backup pad 14, fixed mounting has second belt pulley 16 on the output shaft of motor 15, first belt pulley 12 with the outside cover of second belt pulley 16 is equipped with same belt 17.
The connecting rod 9 is fixedly provided with a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is fixedly connected with the first support frame 8, and the second reinforcing rib is fixedly connected with the scraper 10.
A rotating hole is formed in one side of the rotating block 18, a bearing is fixedly sleeved on the outer side of the internal threaded pipe 6, and the outer ring of the bearing is fixedly connected with the inner wall of the rotating hole.
When the electrolytic efficiency is affected by a large amount of sundries attached to the electrode plate 5 in the electrolytic air-flotation treatment tank due to long-term use, the motor 15 is started, the motor 15 drives the second belt pulley 16 to rotate, the second belt pulley 16 drives the first belt pulley 12 to rotate through the belt 17, the first belt pulley 12 drives the rotating rod 11 to rotate, the rotating rod 11 drives the two internal thread pipes 6 to rotate, the thread directions of the two internal thread pipes 6 are set to be opposite, the internal thread pipes 6 drive the screw rods 7 to rotate, so that the two screw rods 7 are far away from or close to each other, the screw rods 7 drive the first support frame 8 to move, the first support frame 8 drives the connecting rod 9 to move, the connecting rod 9 drives the scraper 10 to move on the electrode plate 5, so that the impurities on the electrode plate 5 can be cleaned through the scraper 10, the electrode plate 5 can be cleaned repeatedly for multiple times by controlling the forward and reverse rotation of the motor 15, and the cleanliness of the electrode plate 5 can be improved, thereby ensuring the normal use of the electrode plate 5 and the efficiency of electrolysis.
Compared with the related technology, the electrocatalysis coupling high-concentration organic wastewater treatment method and the device provided by the invention have the following beneficial effects:
the invention provides a method and equipment for treating high-concentration organic wastewater through electrocatalysis coupling, which can quickly and conveniently treat organic matters in wastewater by adding an electrolysis air flotation treatment and an electrocatalysis coupling reactor in the normal water treatment process, decompose the organic matters in the wastewater, and quickly treat the wastewater rich in the organic matters to reach the discharge standard through normal wastewater treatment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An electrocatalysis coupling high-concentration organic wastewater treatment method is characterized by comprising the following steps:
s1: carrying out clarification pretreatment on the organic wastewater;
s2: performing clarification and buffering after electrolytic air flotation treatment;
s3: introducing into an electrocatalytic coupling reactor to decompose the organic matters and release carbon dioxide to obtain clear water;
s4: carrying out advanced treatment system treatment on the clean water treated by the electrocatalysis coupling reactor;
s5: and finally, discharging or recycling the treated wastewater.
2. The method as claimed in claim 1, wherein the step of collecting the waste water and waste residue after the step of performing electro-catalytic coupling high concentration organic wastewater treatment in step S2.
3. The method as claimed in claim 1, wherein a catalytic agent is added when the wastewater is clarified and buffered in S3.
4. The utility model provides an organic waste water treatment equipment of electrocatalysis coupling high concentration, its characterized in that, including clarification pretreatment tank, electrolysis air supporting treatment tank, clarification buffer pool and electrocatalysis coupling reactor, clarification pretreatment tank electrolysis air supporting treatment tank clarification buffer pool with electrocatalysis coupling reactor links gradually.
5. The electro-catalytic coupling high-concentration organic wastewater treatment device according to claim 4, wherein the electro-catalytic coupling high-concentration organic wastewater treatment tank comprises a treatment tank, an electrolytic diaphragm is arranged in the treatment tank, a water pump is arranged on one side of the treatment tank, a collecting tank is arranged on the side of the treatment tank far away from the water pump, two electrode plates are fixedly mounted at the bottom of the treatment tank, two internal threaded pipes are rotatably mounted below the treatment tank, threaded rods are mounted in the internal threaded pipes, one ends of the two threaded rods far away from each other respectively extend out of the corresponding internal threaded pipes and are fixedly mounted with first support frames, connecting rods are fixedly mounted at the top ends of the first support frames, one ends of the two connecting rods close to each other both extend into the treatment tank, the connecting rods are connected with the side walls of the treatment tank in a sliding and sealing manner, and scrapers are fixedly mounted at the bottoms of the connecting rods, the scraper blade with corresponding the top of plate electrode contacts, two the one end fixed mounting that the internal thread pipe is close to each other has same dwang, be equipped with drive mechanism on the dwang, drive mechanism is used for controlling just reversing and the rotational speed of dwang.
6. The electro-catalytic coupling high-concentration organic wastewater treatment device according to claim 5, wherein four rotating blocks are fixedly mounted at the bottom of the treatment tank, the internal threaded pipe penetrates through two corresponding rotating blocks, and the internal threaded pipe is rotatably connected with the rotating blocks.
7. The electro-catalytic coupling high-concentration organic wastewater treatment equipment according to claim 5, wherein four support legs which are distributed in a rectangular shape are fixedly arranged at the bottom of the treatment tank, the same support plate is fixedly arranged on the four support legs, and the transmission mechanism is arranged on the support plate.
8. The electro-catalytic coupling high-concentration organic wastewater treatment device according to claim 7, wherein the transmission mechanism comprises a motor fixedly mounted on the support plate and a first belt pulley fixedly mounted on the outer side of the transmission rod, a second belt pulley is fixedly mounted on the output shaft of the motor, and the same belt is sleeved on the outer sides of the first belt pulley and the second belt pulley.
9. The electrocatalysis coupling high concentration organic wastewater treatment device according to claim 5, wherein a first reinforcing rib and a second reinforcing rib are fixedly installed on the connecting rod, the first reinforcing rib is fixedly connected with the first supporting frame, and the second reinforcing rib is fixedly connected with the scraper.
10. The apparatus as claimed in claim 6, wherein a rotation hole is formed at one side of the rotation block, a bearing is fixedly sleeved at the outer side of the internal threaded pipe, and the outer ring of the bearing is fixedly connected with the inner wall of the rotation hole.
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CN202110656279.9A CN113429033A (en) | 2021-06-12 | 2021-06-12 | Electrocatalysis coupling high concentration organic waste water treatment method and equipment |
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CN202110656279.9A CN113429033A (en) | 2021-06-12 | 2021-06-12 | Electrocatalysis coupling high concentration organic waste water treatment method and equipment |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102115287A (en) * | 2011-01-13 | 2011-07-06 | 北京首钢国际工程技术有限公司 | Coking waste water deep treatment zero-emission process |
CN207859137U (en) * | 2018-02-09 | 2018-09-14 | 青岛市捷能新型材料有限公司 | Sand aerated-block useless slurry slot cleaning waste slag device |
CN209702362U (en) * | 2018-10-16 | 2019-11-29 | 诸城市隆鑫环保机械科技有限公司 | Electrolytic air-floating machine |
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2021
- 2021-06-12 CN CN202110656279.9A patent/CN113429033A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102115287A (en) * | 2011-01-13 | 2011-07-06 | 北京首钢国际工程技术有限公司 | Coking waste water deep treatment zero-emission process |
CN207859137U (en) * | 2018-02-09 | 2018-09-14 | 青岛市捷能新型材料有限公司 | Sand aerated-block useless slurry slot cleaning waste slag device |
CN209702362U (en) * | 2018-10-16 | 2019-11-29 | 诸城市隆鑫环保机械科技有限公司 | Electrolytic air-floating machine |
Non-Patent Citations (1)
Title |
---|
同济大学环境工程系编: "《给水工程基本知识 第2版》", 31 December 1987, 中国建筑工业出版社 * |
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Application publication date: 20210924 |