CN115353244A - High COD concentration emulsion waste water treatment equipment - Google Patents
High COD concentration emulsion waste water treatment equipment Download PDFInfo
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- CN115353244A CN115353244A CN202210757048.1A CN202210757048A CN115353244A CN 115353244 A CN115353244 A CN 115353244A CN 202210757048 A CN202210757048 A CN 202210757048A CN 115353244 A CN115353244 A CN 115353244A
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- tank
- water
- tubular reactor
- emulsion
- oil
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
Abstract
The invention provides high COD concentration emulsion wastewater treatment equipment, which comprises a tubular reactor, wherein emulsion wastewater is input into the tubular reactor through an input end of the tubular reactor; the bottom of the air flotation tank is connected with the output end of the tubular reactor, a NaOH dosing pipe and a demulsifier dosing pipe are arranged on the tubular reactor, a medicament can be added into the tubular reactor through the NaOH dosing pipe and the demulsifier dosing pipe, emulsion wastewater fully mixed with the medicament through the tubular reactor can be damaged in a stable system, oil and water are separated and enter the air flotation tank together, the upper end of the air flotation tank is in an inclined design, an oil content collecting tank is arranged on one side of the air flotation tank, and an emulsion clear water tank is arranged on the other side of the air flotation tank; the gas dissolving system is connected with the emulsion clear water tank, is also connected with high-pressure gas equipment and a gas floating tank in a plant, and is used for mixing gas and clear water to form gas-dissolved water.
Description
Technical Field
The invention relates to the field of emulsion wastewater treatment, in particular to a high COD concentration emulsion wastewater treatment device.
Background
The emulsion is used for metal processing mostly, and its chemical composition is mainly water, oil mixture, surfactant active etc. in metal processing's enterprise, inevitably can produce the emulsion waste water, and the emulsion waste water has high COD, and the system is stable, and difficult degradation, the characteristics that biodegradability is poor generally adopt to add demulsifier layered filtration, cooperates the mode of advanced oxidation to carry out the preliminary treatment to this type of waste water, gets rid of most pollutant, nevertheless lacks good COD in the preliminary treatment stage and gets rid of the effect.
Disclosure of Invention
The invention aims to provide equipment for treating high-COD-concentration emulsified liquid wastewater so as to solve the problem that COD is not treated in the pretreatment process in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the equipment for treating the emulsified liquid wastewater with high COD concentration comprises
The pipe reactor is used for inputting the emulsion wastewater into the pipe reactor through the input end of the pipe reactor;
the bottom of the air flotation tank is connected with the output end of the tubular reactor, a NaOH dosing pipe and a demulsifier dosing pipe are arranged on the tubular reactor, a medicament can be added into the tubular reactor through the NaOH dosing pipe and the demulsifier dosing pipe, emulsion wastewater fully mixed with the medicament through the tubular reactor can be damaged in a stable system, oil and water are separated and enter the air flotation tank together, the upper end of the air flotation tank is in an inclined design, an oil content collecting tank is arranged on one side of the air flotation tank, and an emulsion clear water tank is arranged on the other side of the air flotation tank;
the gas dissolving system is connected with the emulsion clear water tank, is also connected with high-pressure gas equipment and an air floatation tank in a factory, is used for mixing gas and clear water to form gas dissolving water, then introduces the gas dissolving water into the air floatation tank, moves the gas in the gas dissolving water to the water surface in a bubble mode in the water inlet mixing process with the air floatation tank, and carries oil in the emulsion wastewater separated from oil and water to the liquid surface in the bubble floating process;
the scum board is arranged above the air floatation tank and matched with the upper end of the air floatation tank in an inclined mode, the scum board is used for moving oil on the surface of the liquid to scrape into an oil collecting tank, and clear water with the oil on the surface scraped off flows into the emulsion clear water tank through one side with a relatively low position.
Further characterized in that the dissolved air system comprises a dissolved air water pump, a clear water inlet pipe, a high-pressure gas pipe and a dissolved air water outlet pipe.
Further, the oil content collecting tank and the emulsion clear water tank are respectively provided with an oil content discharge pipe and a clear water discharge pipe which correspond to each other.
The tubular reactor is characterized in that a steam pipe is connected to the tail end of the tubular reactor, steam can be introduced into the steam pipe to properly heat the emulsion wastewater, so that the emulsion wastewater and the demulsifier are mixed and reacted more fully, gas in the dissolved gas water is more easily released after the liquid temperature is increased, and the speed of floating oil to the liquid level is increased.
Compared with the prior art, the invention has the beneficial effects that:
the invention comprises a whole set of processes of ph adjustment, medicament addition, air flotation separation and heating demulsification, and can achieve good COD removal effect in the emulsion pretreatment stage through a set of equipment.
Drawings
FIG. 1 is a schematic view of a tubular reactor according to an embodiment of the present invention;
FIG. 2 is a block diagram of an apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a tubular reactor connection according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an air dissolving system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 4, an embodiment of the present invention provides a technical solution: the high COD concentration emulsified liquid waste water treatment equipment comprises a tubular reactor, an air floatation tank, an air dissolving system and a slag scraping plate;
inputting emulsion wastewater into the tubular reactor through the input end of the tubular reactor;
the bottom of the air flotation tank is connected with the output end of the tubular reactor, a NaOH dosing pipe and a demulsifier dosing pipe are arranged on the tubular reactor, a medicament can be added into the tubular reactor through the NaOH dosing pipe and the demulsifier dosing pipe, emulsion wastewater fully mixed with the medicament through the tubular reactor can be damaged in a stable system, oil and water are separated and enter the air flotation tank together, the upper end of the air flotation tank is in an inclined design, the upper end of the air flotation tank is high from left to right, an oil content collecting tank is arranged on one side of the air flotation tank, an emulsion clear water tank is arranged on the other side of the air flotation tank, and clear water can be added into the emulsion clear water tank according to needs;
the dissolved air system is connected with the emulsion clear water tank, is also connected with high-pressure air equipment in a factory and an air floatation tank, is used for mixing gas and clear water to form dissolved air water, then introduces the dissolved air water into the air floatation tank, moves the gas in the dissolved air water to the water surface in a bubble mode in the process of mixing the dissolved air water with the water inlet of the air floatation tank, and brings oil in the emulsion wastewater separated from oil and water to the liquid surface in the process of floating bubbles;
the scum board sets up in the top in air supporting pond, with the slope phase-match of air supporting pond upper end, the scum board is arranged in the oil content that the removal scraped the liquid surface to scrape to the oil content collecting vat, and the clear water of being scraped the surface oil content then flows in to the emulsion clear water groove through the relatively lower one side in position, and scum board moving direction is from the right side left, scrapes the oil content on the liquid surface to lieing in the left oil content collecting vat of air supporting pond.
As shown in fig. 2 and 4, the dissolved air system comprises a dissolved air water pump, a clean water inlet pipe, a high-pressure gas pipe and a dissolved air water outlet pipe, the clean water and the high-pressure gas respectively enter the dissolved air tank through the clean water inlet pipe and the high-pressure gas pipe to be fully fused, and then are sent out by the dissolved air water pump, and the dissolved air water is discharged into the air flotation tank through the dissolved air water outlet pipe.
As shown in fig. 4, the oil collecting tank and the emulsion clear water tank are provided with corresponding oil discharge pipes and clear water discharge pipes, the collected oil can be discharged through the oil discharge pipes, and the clear water can be discharged through the clear water discharge pipes.
As shown in fig. 1, the tail end of the tubular reactor is also connected with a steam pipe, steam can be introduced into the steam pipe to properly heat the emulsion wastewater, so that the emulsion wastewater and the demulsifier can be mixed and reacted more fully, the gas in the dissolved gas water can be easily released after the liquid temperature is increased, the speed of oil floating to the liquid level is increased, and the finishing treatment efficiency is improved.
When the device is used, a tubular reactor is adopted at a water inlet section of an air floatation tank, an agent pipeline is connected at a specific position of the pipeline while emulsion wastewater flows in the pipeline, a corresponding ph adjusting agent and a corresponding demulsifier are added, the agent and the emulsion simultaneously flow in the pipeline, and a mixing reaction of the agent and the emulsion is finished along with the flowing and the bending of the pipeline;
the gas dissolving system is connected with high-pressure gas in a plant, the gas is mixed with clear effluent to form gas dissolving water, the gas dissolving water fully mixed with the gas is introduced into the air floatation tank, in the mixing process with air floatation inlet water, the gas in the gas dissolving water moves to the water surface in a bubble mode, and oil in emulsion wastewater separated from oil and water is carried to the liquid surface in the bubble floating process;
oil on the liquid surface is scraped to an oil collecting tank from right to left at the liquid surface by a slag scraping plate, the bottom of an air floatation tank is almost clear water, most of the clear water enters the next treatment link, and the small part of the clear water continues to enter an air dissolving system to form air dissolving water to assist the oil in the emulsion wastewater to float to the liquid surface;
when the whole operation of air supporting is got, tubular reactor's end connection steam pipe, steam lets in and can suitably heat emulsion waste water for the mixed reaction of emulsion and demulsifier is more abundant, improves the speed that the oil content floated to the page, improves whole treatment effeciency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The equipment for treating the emulsified liquid wastewater with high COD concentration is characterized by comprising
The tubular reactor is used for inputting the emulsion wastewater into the tubular reactor through the input end of the tubular reactor;
the bottom of the air flotation tank is connected with the output end of the tubular reactor, a NaOH dosing pipe and a demulsifier dosing pipe are arranged on the tubular reactor, a medicament can be added into the tubular reactor through the NaOH dosing pipe and the demulsifier dosing pipe, emulsion wastewater fully mixed with the medicament through the tubular reactor can be damaged in a stable system, oil and water are separated and enter the air flotation tank together, the upper end of the air flotation tank is in an inclined design, an oil content collecting tank is arranged on one side of the air flotation tank, and an emulsion clear water tank is arranged on the other side of the air flotation tank;
the gas dissolving system is connected with the emulsion clear water tank, is also connected with high-pressure gas equipment and an air floatation tank in a factory, is used for mixing gas and clear water to form gas dissolving water, then introduces the gas dissolving water into the air floatation tank, moves the gas in the gas dissolving water to the water surface in a bubble mode in the water inlet mixing process with the air floatation tank, and carries oil in the emulsion wastewater separated from oil and water to the liquid surface in the bubble floating process;
the scraping plate is arranged above the air flotation tank and matched with the upper end of the air flotation tank in an inclined mode, the scraping plate is used for moving oil on the surface of the liquid to be scraped into the oil collecting tank, and clear water with the oil on the surface scraped through the lower side of the scraping plate flows into the emulsion clear water tank.
2. The apparatus for treating emulsion wastewater with high COD concentration according to claim 1, characterized in that: the dissolved air system comprises a dissolved air water pump, a clear water inlet pipe, a high-pressure gas pipe and a dissolved air water outlet pipe.
3. The apparatus for treating emulsion wastewater with high COD concentration according to claim 1, characterized in that: and the oil content collecting tank and the emulsion clear water tank are respectively provided with an oil content discharge pipe and a clear water discharge pipe which correspond to each other.
4. The apparatus for treating emulsion wastewater with high COD concentration according to claim 1, characterized in that: the tail end of the tubular reactor is also connected with a steam pipe, steam can be introduced into the steam pipe to properly heat the emulsion wastewater, so that the emulsion wastewater and the demulsifier are mixed and reacted more fully, the gas in the dissolved gas water is easier to release after the liquid temperature is increased, and the speed of oil floating to the liquid level is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210757048.1A CN115353244A (en) | 2022-06-29 | 2022-06-29 | High COD concentration emulsion waste water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210757048.1A CN115353244A (en) | 2022-06-29 | 2022-06-29 | High COD concentration emulsion waste water treatment equipment |
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| CN115353244A true CN115353244A (en) | 2022-11-18 |
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| CN202210757048.1A Pending CN115353244A (en) | 2022-06-29 | 2022-06-29 | High COD concentration emulsion waste water treatment equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203820577U (en) * | 2014-02-13 | 2014-09-10 | 江苏星驰环保有限公司 | All-in-one machine for comprehensive sewage treatment |
| CN207608351U (en) * | 2017-11-29 | 2018-07-13 | 河南环源环保科技有限公司 | Sewage disposal current stabilization air-floating apparatus |
| CN108328787A (en) * | 2018-01-19 | 2018-07-27 | 光山白鲨针布有限公司 | A kind of high-concentration emulsified liquid waste water treatment process and its processing unit |
| CN209143933U (en) * | 2018-10-11 | 2019-07-23 | 湖北中和普汇环保股份有限公司 | Waste emulsified mixture advanced treatment apparatus |
-
2022
- 2022-06-29 CN CN202210757048.1A patent/CN115353244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203820577U (en) * | 2014-02-13 | 2014-09-10 | 江苏星驰环保有限公司 | All-in-one machine for comprehensive sewage treatment |
| CN207608351U (en) * | 2017-11-29 | 2018-07-13 | 河南环源环保科技有限公司 | Sewage disposal current stabilization air-floating apparatus |
| CN108328787A (en) * | 2018-01-19 | 2018-07-27 | 光山白鲨针布有限公司 | A kind of high-concentration emulsified liquid waste water treatment process and its processing unit |
| CN209143933U (en) * | 2018-10-11 | 2019-07-23 | 湖北中和普汇环保股份有限公司 | Waste emulsified mixture advanced treatment apparatus |
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