CN112979039A - Industrial wastewater deep oxidation treatment system and treatment method - Google Patents
Industrial wastewater deep oxidation treatment system and treatment method Download PDFInfo
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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
- C02F1/24—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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
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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
- C02F1/72—Treatment of water, waste water, or sewage by 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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Abstract
The invention provides an industrial wastewater deep oxidation treatment system and a treatment method. Wherein, industrial waste water advanced oxidation processing system includes: an electromagnetic and control system capable of emitting high frequency electromagnetic energy; the electromagnetic oxidation system contains wastewater to be treated and a compound medicament, and high-frequency electromagnetic energy emitted by the electromagnetic and control system is transmitted into the wastewater of the electromagnetic oxidation system; the advanced treatment system is communicated with the electromagnetic oxidation system, and wastewater after primary oxidation reaction is introduced into the advanced treatment system and is subjected to advanced treatment under the action of a catalytic medium in the advanced treatment system; the solid-liquid separation system is communicated with the advanced treatment system, and the wastewater after advanced treatment is introduced into the solid-liquid separation system for solid-liquid separation; the device is an integrated combined system. The invention solves the problem that the advanced treatment process of industrial wastewater in the prior art can not meet the discharge requirement.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, in particular to an industrial wastewater deep oxidation treatment system and a treatment method.
Background
A large amount of industrial wastewater which is difficult to treat exists in the industrial wastewater, such as petrochemical industry, coal coke chemical industry, printing and dyeing, electroplating, pharmacy and the like, which has great harm to the environment, belongs to typical industrial wastewater which is difficult to treat, and an efficient and economic wastewater treatment integrated technology is urgently needed to realize ultralow emission and recycling.
In the coal coke chemical industry, coking wastewater contains a large amount of toxic, harmful and non-degradable high-concentration organic matters, has the characteristics of complex components, large change of water quality and water quantity, poor biodegradability, difficult effluent reaching the standard and the like, and belongs to typical refractory industrial wastewater. At present, the total coke energy in the whole coking industry is huge, the coking wastewater treatment generally adopts a biochemical combined advanced treatment process, most enterprises execute the discharge standard of pollutants for coking chemical industry (GB16171-2012) and the COD (chemical oxygen demand) below 150mg \ L in Table 2 of Table 2, zero discharge is required in some areas, and the rear ends of part of the enterprises are treated by a membrane system to realize partial recycling, so that the generated membrane concentrated water becomes a new pollution treatment difficulty. Currently, applied advanced treatment technologies, such as fenton technology, ozone catalytic oxidation technology, electrocatalytic oxidation technology and the like, have no ultralow emission technology which reaches below COD40mg \ L and has obvious chromaticity removal due to the technical inflection point of removing pollution factors such as COD.
Disclosure of Invention
The invention mainly aims to provide an industrial wastewater advanced oxidation treatment system and a treatment method, so as to solve the problem that the industrial wastewater advanced treatment process in the prior art cannot meet the discharge requirement.
In order to achieve the above object, according to one aspect of the present invention, there is provided an industrial wastewater deep oxidation treatment system comprising: an electromagnetic and control system capable of emitting high frequency electromagnetic energy; the electromagnetic oxidation system contains wastewater to be treated and a composite medicament, and high-frequency electromagnetic energy emitted by the electromagnetic and control system is transmitted into the wastewater of the electromagnetic oxidation system and is subjected to preliminary oxidation reaction, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are distorted and weakened, the stability is reduced, and the oxidability is improved; the advanced treatment system is communicated with the electromagnetic oxidation system, the wastewater after the primary oxidation reaction is introduced into the advanced treatment system and is subjected to advanced treatment under the action of a catalytic medium in the advanced treatment system, so that unstable organic matters in the wastewater after the primary oxidation reaction are fully oxidized to generate water and carbon dioxide; the solid-liquid separation system is communicated with the advanced treatment system, and the wastewater after advanced treatment is introduced into the solid-liquid separation system for solid-liquid separation; the device integral combination system, the electromagnetic and control system, the electromagnetic oxidation system, the advanced treatment system and the solid-liquid separation system are all fixedly arranged on the device integral combination system and are communicated and controlled through the device integral combination system.
Further, the electromagnetic and control system comprises: an electromagnetic generating device capable of emitting high frequency electromagnetic energy; the electromagnetic control device is electrically connected with the electromagnetic generating device and can control the energy power of the high-frequency electromagnetic energy emitted by the electromagnetic generating device; and the electromagnetic transmission device is connected with the electromagnetic generation device and the electromagnetic oxidation system and can transmit the high-frequency electromagnetic energy emitted by the electromagnetic generation device to the electromagnetic oxidation system.
Further, the electromagnetic oxidation system comprises: the electromagnetic oxidation reaction body is provided with a containing cavity for containing the wastewater to be treated, and the high-frequency electromagnetic energy emitted by the electromagnetic and control system is transmitted into the electromagnetic oxidation reaction body; the dosing device stores compound medicament and is communicated with the electromagnetic oxidation reaction body, and the dosing device conveys the compound medicament into the electromagnetic oxidation reaction body.
Further, the deep processing system comprises: the advanced treatment reaction body is communicated with the electromagnetic oxidation system and can contain the wastewater after the primary oxidation reaction; agitating unit, agitating unit rotationally set up in the advanced treatment reaction body, and the surface load has catalytic medium, and catalytic medium and continuous contact reaction of waste water carry out advanced treatment.
Further, the catalytic media has a supported solid form that is non-toxic and odorless.
Further, the catalytic media is a catalyst comprised of one or more transition metal elements and compounds thereof.
Further, the stirring device has a special-shaped frame structure.
Further, the stirring device can be replaced relative to the advanced treatment reaction body, and the rotating speed can be adjusted.
Further, the solid-liquid separation system comprises at least one of an air floatation type solid-liquid separation device and a precipitation type solid-liquid separation device, and when the air floatation type solid-liquid separation device and the precipitation type solid-liquid separation device are arranged at the same time, the air floatation type solid-liquid separation device and the precipitation type solid-liquid separation device are arranged separately and are both communicated with the advanced treatment system.
Further, the device overall combination system comprises: the electromagnetic oxidation system, the deep treatment system and the solid-liquid separation system are all fixedly arranged on the machine shell rack; the electromagnetic oxidation system is used for carrying out deep treatment on the waste water and the solid-liquid separation system; the pipeline connecting device, the electromagnetic oxidation system, the advanced treatment system and the solid-liquid separation system are communicated through the pipeline connecting device.
According to another aspect of the present invention, there is provided an industrial wastewater deep oxidation treatment method, using the above industrial wastewater deep oxidation treatment system, the industrial wastewater deep oxidation treatment method including: under the action of high-frequency electromagnetic energy and a compound medicament, the wastewater is subjected to multistage, continuous and strong oscillation radiation action on the wastewater in an electromagnetic oxidation system of an industrial wastewater deep oxidation treatment system, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are distorted and weakened, the stability of the organic matters is reduced, the oxidability of the organic matters is improved, and a preliminary oxidation reaction is carried out; the wastewater after the preliminary oxidation reaction enters an advanced treatment system of an industrial wastewater advanced oxidation treatment system, the catalytic medium is continuously contacted with the wastewater under the stirring of a stirring device attached with the catalytic medium, the wastewater is subjected to the advanced oxidation reaction under the catalytic oxidation action, and unstable organic matters in the wastewater after the preliminary oxidation in an electromagnetic oxidation system are fully oxidized to generate water and carbon dioxide; and (4) the wastewater after advanced treatment enters a solid-liquid separation system of the industrial wastewater advanced oxidation treatment system, and supernatant effluent is obtained after separation.
By applying the technical scheme of the invention, the wastewater is correspondingly treated in the electromagnetic oxidation system, the advanced treatment system and the solid-liquid separation system in sequence through the system equipment formed by the electromagnetic and control system, the electromagnetic oxidation system, the advanced treatment system, the solid-liquid separation system and the device integrated combination system. Specifically, the high-frequency electromagnetic energy is used for carrying out multistage, continuous and strong oscillation, radiation and oxidation on long-chain, stable and difficult-to-oxidize organic matter chemical bonds in the wastewater, so that the organic matter chemical bonds are twisted and weakened, the stability of the organic matter chemical bonds is reduced, and the easy-to-oxidize property of the organic matter chemical bonds is improved. And then accelerating the processes of electron gain-loss, transfer and circulation by the advanced treatment system under the catalytic action of a catalytic reaction medium on the composite reagent, so that the composite reagent generates a large amount of hydroxyl radicals in a short time, the oxidation reaction speed and efficiency are greatly improved, unstable organic matters are fully oxidized to generate harmless water and carbon dioxide, and the effluent water reaches the direct discharge standard or enters a membrane system through a solid-liquid separation system, so that the reclaimed water recycling with high water yield is realized. Particularly, pollutants subjected to electromagnetic oxidation in the coking wastewater are fully degraded to reach below COD40mg \ L, the chromaticity removal is obviously standard, and a new mode of efficiently and continuously treating the coking wastewater by stages by applying an electromagnetic principle and matching with an efficient catalytic medium is created. The whole system is simplified in operation, safe, stable, convenient to maintain, low in maintenance rate, corrosion-resistant and easy to clean; no noise pollution, low energy consumption and drug consumption and large water treatment amount; the system is all electromechanical equipment, can realize quick start and quick stop, is simple and convenient to operate, occupies small area and has low investment cost; the electromagnetic energy can be used for distorting chemical bonds of unstable long-chain, difficultly-degradable and complex organic matters, so that the organic matters are easily oxidized; hydroxyl free radicals generated by the electromagnetic oxidation system and the advanced treatment system distort and destabilize the structure of the organic matter in a short time, and are greatly decomposed and oxidized to generate harmless carbon dioxide and water; the treated wastewater can reach below COD40mg \ L, the chroma removal is obvious, the ultra-low discharge is realized, and the wastewater can be efficiently recycled after membrane treatment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural diagram of an industrial wastewater advanced oxidation treatment system of the present invention.
Wherein the figures include the following reference numerals:
10. an electromagnetic and control system; 11. an electromagnetic generating device; 12. an electromagnetic control device; 13. an electromagnetic transmission device; 20. an electromagnetic oxidation system; 21. an electromagnetic oxidation reaction body; 22. a dosing device; 30. a deep processing system; 31. deeply treating the reaction body; 32. a stirring device; 40. a solid-liquid separation system; 41. an air-flotation type solid-liquid separation device; 42. a precipitation type solid-liquid separation device; 51. an electric operation device; 52. a pipeline connecting device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
The invention provides an industrial wastewater deep oxidation treatment system and a treatment method, aiming at solving the problem that the industrial wastewater deep treatment process in the prior art cannot meet the discharge requirement.
As shown in FIG. 1, the system for advanced oxidation treatment of industrial wastewater comprises an electromagnetic and control system 10, an electromagnetic oxidation system 20, an advanced treatment system 30, a solid-liquid separation system 40 and an integral combination system of devices, wherein the electromagnetic and control system 10 can emit high-frequency electromagnetic energy; the electromagnetic oxidation system 20 contains wastewater to be treated and a composite medicament, and high-frequency electromagnetic energy emitted by the electromagnetic and control system 10 is transmitted into the wastewater of the electromagnetic oxidation system 20 and is subjected to preliminary oxidation reaction, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are distorted and weakened, the stability is reduced, and the easy-to-oxidize property is improved; the advanced treatment system 30 is communicated with the electromagnetic oxidation system 20, the wastewater after the primary oxidation reaction is introduced into the advanced treatment system 30 and is subjected to advanced treatment under the action of a catalytic medium in the advanced treatment system 30, so that unstable organic matters in the wastewater after the primary oxidation reaction are fully oxidized to generate water and carbon dioxide; the solid-liquid separation system 40 is communicated with the advanced treatment system 30, and the wastewater after advanced treatment is introduced into the solid-liquid separation system 40 for solid-liquid separation; the electromagnetic and control system 10, the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40 are all fixedly arranged on the integral combination system of the device and are communicated and controlled through the integral combination system of the device.
In this embodiment, the electromagnetic oxidation system 20, the advanced treatment system 30, the solid-liquid separation system 40 and the whole device combination system form a system device, and the wastewater is treated correspondingly in the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40 in sequence. Specifically, the high-frequency electromagnetic energy is used for carrying out multistage, continuous and strong oscillation, radiation and oxidation on long-chain, stable and difficult-to-oxidize organic matter chemical bonds in the wastewater, so that the organic matter chemical bonds are twisted and weakened, the stability of the organic matter chemical bonds is reduced, and the easy-to-oxidize property of the organic matter chemical bonds is improved. Then, the advanced treatment system 30 accelerates the processes of electron gain, loss, transfer and circulation under the catalytic action of a catalytic reaction medium on the composite reagent, so that the composite reagent generates a large amount of hydroxyl radicals in a short time, the oxidation reaction speed and efficiency are greatly improved, unstable organic matters are fully oxidized to generate harmless water and carbon dioxide, and the effluent water reaches the direct discharge standard or enters a membrane system through a solid-liquid separation system 40, so that the reclaimed water recycling with high water yield is realized. Particularly, pollutants subjected to electromagnetic oxidation in the coking wastewater are fully degraded to reach below COD40mg \ L, the chromaticity removal is obviously standard, and a new mode of efficiently and continuously treating the coking wastewater by stages by applying an electromagnetic principle and matching with an efficient catalytic medium is created. The whole system is simplified in operation, safe, stable, convenient to maintain, low in maintenance rate, corrosion-resistant and easy to clean; no noise pollution, low energy consumption and drug consumption and large water treatment amount; the system is all electromechanical equipment, can realize quick start and quick stop, is simple and convenient to operate, occupies small area and has low investment cost; the electromagnetic energy can be used for distorting chemical bonds of unstable long-chain, difficultly-degradable and complex organic matters, so that the organic matters are easily oxidized; hydroxyl free radicals generated by the electromagnetic oxidation system 20 and the advanced treatment system 30 distort and destabilize the structure of the organic matter in a short time, and are greatly decomposed and oxidized to generate harmless carbon dioxide and water; the treated wastewater can reach below COD40mg \ L, the chroma removal is obvious, the ultra-low discharge is realized, and the wastewater can be efficiently recycled after membrane treatment.
In the present embodiment, the electromagnetic and control system 10 comprises an electromagnetic generating device 11, an electromagnetic control device 12 and an electromagnetic transmission device 13, wherein the electromagnetic generating device 11 is capable of emitting high-frequency electromagnetic energy with multipoint, continuous and strong oscillation radiation function; the electromagnetic control device 12 is electrically connected with the electromagnetic generating device 11 and can control the energy power of the high-frequency electromagnetic energy emitted by the electromagnetic generating device 11; the electromagnetic transmission device 13 is connected to the electromagnetic generating device 11 and the electromagnetic oxidizing system 20, and is capable of transmitting the high-frequency electromagnetic energy emitted from the electromagnetic generating device 11 to the electromagnetic oxidizing system 20.
In this embodiment, the electromagnetic oxidation system 20 includes an electromagnetic oxidation reaction body 21 and a dosing device 22, the electromagnetic oxidation reaction body 21 has a containing cavity for containing the wastewater to be treated, the electromagnetic transmission device 13 is connected with the electromagnetic oxidation reaction body 21, and the high-frequency electromagnetic energy emitted by the electromagnetic and control system 10 is transmitted into the electromagnetic oxidation reaction body 21; the dosing device 22 stores a compound medicament and is communicated with the bottom of the electromagnetic oxidation reaction body 21, a water inlet pipe for introducing wastewater is further arranged at the bottom of the electromagnetic oxidation reaction body 21, and the dosing device 22 conveys the compound medicament into the electromagnetic oxidation reaction body 21. When the device is used, a quantitative compound medicament is added into the electromagnetic oxidation reaction body 21 through the dosing device 22 according to the water quality condition, and under the coordination of the compound medicament, the electromagnetic energy multipoint, continuous and strong vibration radiation effect is utilized, so that the chemical bonds of long-chain and difficultly-degradable organic matters in the wastewater are distorted and weakened, the organic matters are unstable and are easier to oxidize, and a preliminary oxidation reaction is carried out. The effluent of the electromagnetic oxidation system 20 automatically flows into the advanced treatment system 30 for advanced oxidation.
Preferably, in order to make the electromagnetic and control system 10 and the electromagnetic oxidation system 20 adapt to the needs of chain breaking, twisting and instability of wastewater and organic matters with different properties, the electromagnetic generation devices 11 with the power of 1 to 30 kw are arranged in a grading manner in this embodiment, so as to ensure that the system has enough energy to break or weaken chemical bonds of organic pollutants, and ensure the adjustability and effectiveness of the electromagnetic energy of the electromagnetic and control system 10.
In the embodiment, the advanced treatment system 30 comprises an advanced treatment reaction body 31 and a stirring device 32, wherein the advanced treatment reaction body 31 is communicated with the electromagnetic oxidation reaction body 21 of the electromagnetic oxidation system 20 and can contain wastewater after primary oxidation reaction; the stirring device 32 is rotatably arranged in the advanced treatment reaction body 31, and different catalytic media are loaded on the surface of the advanced treatment reaction body, and the catalytic media are continuously contacted and reacted with the wastewater to carry out advanced treatment. When the device is used, the composite medicament is stirred and contacted by the stirring device 32 loaded with the catalytic medium in the advanced treatment reaction body 31, so that the catalytic action of the catalytic medium is fully exerted, the oxidation rate of the composite medicament is greatly improved, long-chain, difficultly-degraded and complex organic matters and other organic matters which are distorted and unstable after being treated by the electromagnetic oxidation system 20 in wastewater are fully oxidized and degraded in a short time, and the wastewater after the advanced treatment automatically flows into the solid-liquid separation system 40.
Preferably, the catalytic media has a supported solid form that is non-toxic and odorless. The catalytic media of this example is a catalyst comprised of one or more transition metal elements and compounds thereof. The system has low energy consumption and drug consumption and large water treatment amount; the used catalytic medium has stable property, no toxicity, no smell, obvious catalytic effect, light consumption and environment friendliness.
Preferably, the agitator 32 has a profile frame configuration such that the catalytic media on the agitator 32 is in sufficient contact with the wastewater. The stirring device 32 is replaceable relative to the advanced treatment reactor 31, and the rotating speed can be adjusted, so that the stirring device can be conveniently replaced and controlled.
In the present embodiment, the solid-liquid separation system 40 includes at least one of an air flotation type solid-liquid separation device 41 and a precipitation type solid-liquid separation device 42, which may be used alone or in combination according to the actual application requirements. When the air flotation type solid-liquid separation device 41 and the precipitation type solid-liquid separation device 42 are arranged at the same time, the air flotation type solid-liquid separation device 41 and the precipitation type solid-liquid separation device 42 are arranged separately and are communicated with the advanced treatment system 30, the fully oxidized and degraded sewage enters the solid-liquid separation system 40 for efficient separation, the supernatant of the effluent reaches the direct discharge standard in table 3 of the coking chemical industry pollutant discharge standard (GB16171-2012), the chromaticity removal is remarkable, the ultralow discharge is realized, or the effluent enters a membrane system, and the reclaimed water recycling with high water yield is realized.
In this embodiment, the integrated assembly system of the apparatus comprises a housing frame, an electric operation device 51 and a pipeline connection device 52, wherein the housing frame plays a role of integral support, and the electromagnetic and control system 10, the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40 are all fixedly arranged on the housing frame. The electric operation device 51 is used for controlling other systems, the electromagnetic and control system 10, the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40 are all electrically connected with the electric operation device 51, the electric operation device 51 can control state parameters of the electromagnetic and control system 10, the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40, parameter adjustment, starting step sequence and safety monitoring are achieved, particularly, parameters of electromagnetic input energy, compound medicament adding proportion and the like required by stages and point positions are adjusted according to the water quality change of waste water, full-automatic control or manual control of a PLC + touch screen is achieved, online monitoring signals are uploaded in real time through a remote communication interface in the system, an electromagnetic radiation field cannot be caused to the surrounding environment, and no electromagnetic interference influence is caused to a near-air aircraft. The pipeline connecting device 52 is used for communicating the systems, and the electromagnetic oxidation system 20, the advanced treatment system 30 and the solid-liquid separation system 40 are communicated through the pipeline connecting device 52.
The embodiment also provides an industrial wastewater advanced oxidation treatment method, which adopts the industrial wastewater advanced oxidation treatment system and comprises the following steps: in an electromagnetic oxidation system 20 of an industrial wastewater deep oxidation treatment system, under the action of high-frequency electromagnetic energy and a compound medicament, the wastewater is subjected to multistage, continuous and strong oscillation radiation, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are twisted and weakened, the stability of the organic matters is reduced, the easy-to-oxidize property of the organic matters is improved, and a preliminary oxidation reaction is carried out; the wastewater after the preliminary oxidation reaction enters an advanced treatment system 30 of an industrial wastewater advanced oxidation treatment system, the catalytic medium is continuously contacted with the wastewater under the stirring of a stirring device 32 attached with the catalytic medium, the wastewater is subjected to the advanced oxidation reaction under the catalytic oxidation action, and unstable organic matters after the preliminary oxidation in the electromagnetic oxidation system 20 in the wastewater are fully oxidized to generate water and carbon dioxide; the wastewater after advanced treatment enters a solid-liquid separation system 40 of an industrial wastewater advanced oxidation treatment system, and supernatant effluent is obtained after separation. The process method is matched with system equipment to realize effective treatment of industrial wastewater, the treated wastewater can reach below COD40mg \ L, the chromaticity removal is obvious, ultralow discharge is realized, the wastewater can be efficiently recycled after membrane treatment, and the treatment and discharge requirements of the industrial wastewater are met.
The mechanism of action of the present embodiment on the organic matters in the wastewater is as follows:
the electromagnetic and control system 10 and the electromagnetic oxidation system 20 apply electromagnetic fields, electromagnetic forces, specific media and agents, and are cooperatively matched with each other in chemical engineering equipment to generate electrochemical reactions such as electromagnetic thermal effect, non-thermal effect, thermoelectric effect and the like, so that chemical bonds of pollutants are broken, distorted or weakened, the activation energy of oxidation reaction is reduced, organic matters are unstable and are easy to oxidize, and conditions are created for the later-stage deep treatment system 30.
The advanced treatment system 30 adopts a special-shaped replaceable frame type stirring device 32 with adjustable rotating speed, and applicable solid catalytic media are loaded on the surface of the stirring device 32 and fully contacted with a composite medicament through rotary stirring to complete catalytic oxidation. Deep oxidation reaction is carried out under the catalytic action of a catalytic medium, so that the organic matters which cannot be degraded can be fully degraded.
The action principle of the catalytic medium is as follows:
the catalytic media employed in the polishing system 30 is comprised of one or more transition metal elements and compounds thereof, acting on the composite reagent. In a reaction system, the existence of the catalytic medium accelerates the gain-loss and transfer of electrons among reactants, and a material circulation path is unblocked, so that the redox reaction in the system breaks through a bottleneck and an inflection point, the reaction can be fully completed, the oxidation efficiency of the composite reagent is greatly improved, and organic matters are fully degraded in a short time.
It should be noted that, a plurality in the above embodiments means at least two.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. the problem that the industrial wastewater advanced treatment process in the prior art cannot meet the discharge requirement is solved;
2. the system is simplified in operation and control, safe and stable, convenient to maintain, low in maintenance rate, corrosion-resistant and easy to clean;
3. no noise pollution, low energy consumption and drug consumption and large water treatment amount;
4. the system is all electromechanical equipment, can realize quick start and quick stop, is simple and convenient to operate, occupies small area and has low investment cost;
5. the electromagnetic energy is used for distorting chemical bonds of unstable long-chain, difficultly-degradable and complex organic matters, so that the organic matters are easily oxidized;
6. hydroxyl free radicals generated by the electromagnetic oxidation system and the advanced treatment system distort and destabilize the structure of the organic matter in a short time, and are greatly decomposed and oxidized to generate harmless carbon dioxide and water;
7. the treated wastewater can reach below COD40mg \ L, the chroma removal is obvious, the ultra-low discharge is realized, and the wastewater can be efficiently recycled after membrane treatment.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An industrial wastewater advanced oxidation treatment system, which is characterized by comprising:
an electromagnetic and control system (10), said electromagnetic and control system (10) being capable of emitting high frequency electromagnetic energy;
the electromagnetic oxidation system (20) contains wastewater to be treated and a compound medicament, high-frequency electromagnetic energy emitted by the electromagnetic and control system (10) is transmitted into the wastewater of the electromagnetic oxidation system (20) and is subjected to primary oxidation reaction, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are twisted and weakened, the stability is reduced, and the oxidability is improved;
the advanced treatment system (30), the advanced treatment system (30) is communicated with the electromagnetic oxidation system (20), the wastewater after the primary oxidation reaction is introduced into the advanced treatment system (30), and advanced treatment is carried out under the action of a catalytic medium in the advanced treatment system (30), so that unstable organic matters in the wastewater after the primary oxidation reaction are fully oxidized to generate water and carbon dioxide;
the solid-liquid separation system (40), the solid-liquid separation system (40) is communicated with the advanced treatment system (30), and the wastewater after advanced treatment is introduced into the solid-liquid separation system (40) for solid-liquid separation;
the electromagnetic oxidation system (20), the advanced treatment system (30) and the solid-liquid separation system (40) are all fixedly arranged on the integral combination system of the device and are communicated and controlled through the integral combination system of the device.
2. The advanced oxidation treatment system of industrial wastewater according to claim 1, wherein the electromagnetic and control system (10) comprises:
an electromagnetic generating device (11), said electromagnetic generating device (11) being capable of emitting high frequency electromagnetic energy;
the electromagnetic control device (12), the electromagnetic control device (12) is electrically connected with the electromagnetic generating device (11) and can control the energy power of the high-frequency electromagnetic energy emitted by the electromagnetic generating device (11);
an electromagnetic transmission device (13), wherein the electromagnetic transmission device (13) is connected with the electromagnetic generation device (11) and the electromagnetic oxidation system (20) and can transmit the high-frequency electromagnetic energy emitted by the electromagnetic generation device (11) to the electromagnetic oxidation system (20).
3. The advanced oxidation treatment system for industrial wastewater as set forth in claim 1, wherein the electromagnetic oxidation system (20) comprises:
the electromagnetic oxidation reaction body (21) is provided with a containing cavity for containing wastewater to be treated, and high-frequency electromagnetic energy emitted by the electromagnetic and control system (10) is transmitted into the electromagnetic oxidation reaction body (21);
the dosing device (22) stores the compound medicament and is communicated with the electromagnetic oxidation reaction body (21), and the dosing device (22) conveys the compound medicament into the electromagnetic oxidation reaction body (21).
4. The advanced oxidation treatment system for industrial wastewater as claimed in claim 1, wherein the advanced treatment system (30) comprises:
the advanced treatment reaction body (31), the advanced treatment reaction body (31) is communicated with the electromagnetic oxidation system (20) and can contain the wastewater after the primary oxidation reaction;
the stirring device (32) is rotatably arranged in the advanced treatment reaction body (31), the surface of the stirring device (32) is loaded with the catalytic medium, and the catalytic medium and the wastewater are continuously contacted and reacted to carry out advanced treatment.
5. The advanced oxidation treatment system for industrial wastewater as claimed in claim 4, wherein the catalytic media is in the form of a non-toxic odorless supported solid.
6. The advanced oxidation treatment system for industrial wastewater as claimed in claim 4, wherein the catalytic medium is a catalyst consisting of one or more transition metal elements and compounds thereof.
7. The advanced oxidation treatment system for industrial wastewater according to claim 4, wherein the stirring device (32) has a frame-and-profile structure.
8. The advanced oxidation treatment system for industrial wastewater as claimed in claim 4, wherein the stirring device (32) is arranged to be replaceable relative to the advanced treatment reactor (31) and the rotating speed can be adjusted.
9. The advanced oxidation treatment system for industrial wastewater as claimed in claim 1, wherein the solid-liquid separation system (40) comprises at least one of an air-flotation type solid-liquid separation device (41) and a precipitation type solid-liquid separation device (42), and when the air-flotation type solid-liquid separation device (41) and the precipitation type solid-liquid separation device (42) are provided simultaneously, the air-flotation type solid-liquid separation device (41) and the precipitation type solid-liquid separation device (42) are provided separately and are both communicated with the advanced treatment system (30).
10. The advanced oxidation treatment system for industrial wastewater as claimed in claim 1, wherein the integrated combination system of the device comprises:
the electromagnetic and control system (10), the electromagnetic oxidation system (20), the advanced treatment system (30) and the solid-liquid separation system (40) are all fixedly arranged on the machine shell rack;
an electrically operated device (51), said electromagnetic and control system (10), said electromagnetic oxidation system (20), said advanced treatment system (30), and said solid-liquid separation system (40) all being electrically connected to said electrically operated device (51), said electrically operated device (51) being capable of controlling state parameters of said electromagnetic and control system (10), said electromagnetic oxidation system (20), said advanced treatment system (30), and said solid-liquid separation system (40);
the pipeline connecting device (52) is used for communicating the electromagnetic oxidation system (20), the advanced treatment system (30) and the solid-liquid separation system (40) through the pipeline connecting device (52).
11. An industrial wastewater advanced oxidation treatment method, which is characterized in that the industrial wastewater advanced oxidation treatment system of any one of claims 1 to 10 is adopted, and the industrial wastewater advanced oxidation treatment method comprises the following steps:
in an electromagnetic oxidation system (20) of the industrial wastewater deep oxidation treatment system, under the action of high-frequency electromagnetic energy and a compound medicament, the wastewater is subjected to multistage, continuous and strong oscillation radiation action, so that chemical bonds of long-chain, stable and difficult-to-oxidize organic matters in the wastewater are twisted and weakened, the stability of the organic matters is reduced, the oxidability of the organic matters is improved, and a primary oxidation reaction is carried out;
the wastewater after the preliminary oxidation reaction enters an advanced treatment system (30) of the industrial wastewater advanced oxidation treatment system, the catalytic medium is continuously contacted with the wastewater under the stirring of a stirring device (32) attached with the catalytic medium, the wastewater is subjected to the advanced oxidation reaction under the catalytic oxidation action, and unstable organic matters in the wastewater after the preliminary oxidation in the electromagnetic oxidation system (20) are fully oxidized to generate water and carbon dioxide;
the wastewater after advanced treatment enters a solid-liquid separation system (40) of the industrial wastewater advanced oxidation treatment system, and supernatant effluent is obtained after separation.
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Application publication date: 20210618 |