CN214654205U - Organic wastewater treatment system device combining ozone oxidation and photocatalysis - Google Patents
Organic wastewater treatment system device combining ozone oxidation and photocatalysis Download PDFInfo
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- CN214654205U CN214654205U CN202022732370.8U CN202022732370U CN214654205U CN 214654205 U CN214654205 U CN 214654205U CN 202022732370 U CN202022732370 U CN 202022732370U CN 214654205 U CN214654205 U CN 214654205U
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Abstract
The utility model provides an organic wastewater treatment system device combining ozone oxidation and photocatalysis, which comprises a reaction tank, a pH adjusting tank and a sedimentation tank which are sequentially connected along the flow direction of organic wastewater, wherein a dosing device is connected to a connecting pipeline of the pH adjusting tank and the sedimentation tank; the reaction tank comprises a shell, at least one longitudinal partition plate is arranged in the shell at intervals, the partition plate divides the interior of the shell into at least two reaction chambers with communicated tops, and at least one photocatalytic assembly is vertically arranged in each reaction chamber; the bottom of the reaction chamber is provided with an ozone injection device, and the ozone injection device is externally connected with an ozone generating device. The utility model discloses combine together ozone oxidation and photocatalytic oxidation, show the reinforcing to organic pollutant's oxidation effect, improved ozone utilization ratio and oxidability, reduced the input volume of ozone.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, a organic wastewater treatment system device is related to, especially relate to an organic wastewater treatment system device of ozone oxidation in coordination with photocatalysis.
Background
In recent years, with the rapid development of economy in China, the industrial development also enters the middle and later stages, but extensive development modes of some heavy pollution industries, such as chemical industry, pharmacy, printing and dyeing and the like, are not completely changed, so that a large amount of organic wastewater difficult to degrade is discharged.
The refractory organic wastewater is toxic and harmful, has complex components, often has three effects of carcinogenesis, teratogenesis and mutagenesis, and can seriously threaten human health once entering into an ecosphere. With the stricter requirements of the emission standard, the existing water treatment process mainly based on biochemical treatment cannot meet the requirement of higher organic pollutant removal rate. Therefore, on the basis of the biochemical treatment process, the addition of an efficient physicochemical treatment technology in the pretreatment or advanced treatment stage of the biochemical treatment is a necessary trend for realizing the standard emission of the refractory organic wastewater at present.
Advanced oxidation technology is a research hotspot of materialized water treatment technology in recent years. Hydroxyl free radicals with extremely strong oxidizability can be generated in the advanced oxidation process, and various refractory organic pollutants can be removed in a non-selective manner. The advanced oxidation technologies which are researched more include ozone oxidation, ozone catalytic oxidation, fenton oxidation, photocatalysis, wet oxidation, catalytic wet oxidation, supercritical water oxidation and the like. The ozone catalytic oxidation technology has the advantages of high reaction efficiency, mild reaction conditions and no secondary pollution, has wide application prospect in the field of refractory organic wastewater, and has a great deal of research on researchers and certain achievements.
Chinese patent CN205500885U discloses a device for treating organic wastewater by ultrasonic ozone catalytic oxidation, which comprises an ozone generator, a stainless steel reaction tank arranged in a main body, a low-frequency ultrasonic transducer, a high-frequency ultrasonic transducer and an ultrasonic generator, wherein the low-frequency ultrasonic transducer, the high-frequency ultrasonic transducer and the ultrasonic generator are sequentially arranged on the side wall of the stainless steel reaction tank, an ozone inlet and a wastewater inlet pipe communicated with the ozone generator are arranged at the bottom of the stainless steel reaction tank, an ozone outlet pipe and a wastewater outlet pipe are arranged at the top of the stainless steel reaction tank, the low-frequency ultrasonic transducer is arranged below the high-frequency ultrasonic transducer, and the low-frequency ultrasonic transducer and the high-frequency ultrasonic transducer are respectively connected with the ultrasonic generator. The device has the advantages that ozone and organic wastewater are separately introduced into the reaction tank, so that gas-liquid mixing is not uniform, the gas-liquid two-phase mass transfer effect is poor, and the catalytic oxidation reaction rate is low.
CN207404920U discloses an ozone catalytic oxidation system for refractory organic waste water, including air water mixing unit, catalytic oxidation unit and back flush unit, air water mixing unit includes the ejector of mixing organic waste water and ozone, pump the booster pump and the ozone generator of organic waste water pump income ejector, catalytic oxidation unit includes the reactor, pack catalyst and dissolved gas releaser in the reactor, back flush unit is including setting up on the reactor, a back flush water inlet and a back flush delivery port for rinsing catalyst surface adhesion pollutant, ejector import one end is connected with the booster pump, the other end is connected with ozone generator.
CN203256089U discloses an organic wastewater treatment device, which comprises a photocatalytic ozone oxidation module, a membrane bioreactor module and an automatic control system, wherein the membrane bioreactor module comprises a tank body, a membrane module is arranged in the tank body, and a water outlet of the photocatalytic ozone oxidation module is connected with a water inlet of the tank body; the membrane module is arranged below the water surface in the tank body, the water outlet of the membrane module is connected with a self-suction water pump, a negative pressure meter is arranged on a water inlet pipeline of the self-suction water pump, and the negative pressure meter and the self-suction water pump are respectively connected with an automatic control system through signal lines.
However, most research is directed to the development and optimization of catalysts, and the research on the optimization of the process flow is less reported. Particularly, the method reports how to effectively improve the utilization rate of ozone in the catalytic oxidation process of ozone.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an organic waste water processing system device of ozone oxidation cooperation photocatalysis, the utility model discloses combine together ozone oxidation and photocatalytic oxidation, show the reinforcing to organic pollutant's oxidation effect, improved ozone utilization ratio and oxidizing power, reduced the input volume of ozone.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an organic wastewater treatment system device combining ozone oxidation and photocatalysis, which comprises a reaction tank, a pH adjusting tank and a sedimentation tank which are sequentially connected along the flow direction of organic wastewater, wherein a dosing device is connected to a connecting pipeline of the pH adjusting tank and the sedimentation tank;
the reaction tank comprises a shell, at least one longitudinal partition plate is arranged in the shell at intervals, the partition plate divides the interior of the shell into at least two reaction chambers with communicated tops, and at least one photocatalytic assembly is vertically arranged in each reaction chamber; the bottom of the reaction chamber is provided with an ozone injection device, and the ozone injection device is externally connected with an ozone generating device.
The utility model provides an organic wastewater treatment system device combines together ozone oxidation and photocatalytic oxidation, and the catalytic oxidation reaction takes place for the catalyst of suspension in ozone and the organic waste water, produces a large amount of hydroxyl free radicals that have strong oxidizing property, and hydroxyl free radical is difficult degradation, macromolecule organic pollutant decomposes into nontoxic, the low toxicity micromolecule material with in the organic waste water, and some pollutants are direct oxidative decomposition for CO2And H2And O. At the same time, under the action of ultraviolet light catalysis, hydroxylThe generation amount of the free radicals is obviously improved, the oxidation effect on organic pollutants is obviously enhanced, the ozone utilization rate and the oxidation capacity are improved, and the adding amount of ozone is reduced. The defect that the organic matters in the wastewater are difficult to completely treat by a single photocatalysis process is overcome, the catalysis efficiency of the photocatalysis process is improved, and the degradation rate of the organic matters in the wastewater is further improved.
As an optimal technical scheme of the utility model, the photocatalysis subassembly include ultraviolet fluorescent tube, quartz sleeve pipe and the stainless steel net that from interior to exterior overlaps in proper order and establish, the ultraviolet fluorescent tube embedded in quartz sleeve intraduct, quartz sleeve pipe and stainless steel net interval set up.
The stainless steel wire mesh is coated with a catalyst layer.
The catalyst layer is a titanium dioxide layer, a zinc oxide layer, a zirconium dioxide layer, a tungsten oxide layer or a silicon dioxide layer.
As an optimized technical scheme of the utility model, shells inner wall be provided with the reflector layer.
And the surfaces of two sides of the longitudinal partition board are provided with reflecting layers.
As an optimal technical scheme, organic waste water treatment system device still include mixing arrangement and rather than external oxidant storage tank, mixing arrangement's exit end insert the reaction tank, the oxidant storage tank provide the oxidant to mixing arrangement, organic waste water gets into and pours into the reaction tank into after mixing arrangement and the oxidant.
The utility model discloses oxidant pre-oxidation technology has been add at organic wastewater treatment system's technology front end, can decompose and destroy the partly organic matter in the organic wastewater through pre-oxidation treatment, is favorable to the coupling oxidation reaction, can guarantee follow-up coupling oxidation technology's treatment effect, further promotes treatment effeciency, can improve ozone utilization ratio and reduce ozone emission to atmospheric pollution. In the utility model, the oxidant stored in the oxidant storage tank can be selected to be hydrogen peroxide.
As an optimized technical scheme, the reaction chamber in be provided with an even number photocatalysis subassembly, the photocatalysis subassembly be the matrix in the reaction chamber and arrange.
As an optimized technical proposal of the utility model, the ozone injection device comprises an ozone injection pipe network and an ozone nozzle arranged on the ozone injection pipe network.
The ozone injection pipe network is of a grid structure which is staggered transversely and longitudinally, and the injection direction of the ozone nozzle is opposite to the photocatalytic component above the ozone nozzle.
The photocatalytic components arranged at the bottom of each reaction chamber are combined into one path and then connected into the ozone generating device.
As an optimized technical proposal of the utility model, ozone catalyst particles are suspended in the organic waste gas injected into the shell.
As an optimized technical proposal of the utility model, the dosing device is stored with coagulant.
The coagulant comprises polyaluminium chloride, polyaluminium sulfate, polyferric chloride, polyferric sulfate, polyacrylamide or sodium alginate.
As an optimal technical scheme, the water purification of sedimentation tank be responsible for the exit end divide into first branch pipe and second branch pipe, the outer row of first branch pipe, the exit end tieback of second branch pipe mixing arrangement.
The water purification main pipe is provided with a COD detector which is used for detecting COD in the purified water discharged from the sedimentation tank.
The first branch pipe is provided with a first electromagnetic valve, and the second branch pipe is provided with a second electromagnetic valve.
As an optimal technical scheme, organic wastewater treatment system device still include control module, control module electric connection the COD detector, control module respectively independently feedback connection first solenoid valve and second solenoid valve, control module be used for receiving the test result that the COD detector acquireed, carry out the logic contrast back with the COD standard value of predetermineeing, according to first solenoid valve of contrast result independent control and second solenoid valve.
The utility model discloses an add control module and realized the retrieval and utilization or the outer row of producing water, convenience of customers real-time supervision treatment effect and inflow adjustment.
The system refers to an equipment system, or a production equipment.
Exemplarily, the utility model provides an organic waste water treatment system device's theory of operation as follows:
(1) the oxidant storage tank provides an oxidant hydrogen peroxide to the mixing device, the organic wastewater enters the mixing device to be mixed with the hydrogen peroxide to realize preliminary oxidation, and the organic wastewater after the preliminary oxidation is introduced into the reaction tank;
(2) ultraviolet light emitted by the ultraviolet lamp tube penetrates through the quartz sleeve and irradiates on the catalyst layer coated on the surface of the stainless steel wire mesh, and the catalyst generates hydroxyl radicals under the photocatalysis;
(3) the ozone generating device sprays ozone into the organic wastewater through the ozone spraying device, the ozone and ozone catalyst particles suspended in the organic wastewater generate ozone catalytic oxidation reaction to generate a large amount of hydroxyl radicals, and the hydroxyl radicals deeply oxidize organic pollutants in the organic wastewater;
(4) discharging the oxidized organic wastewater from the reaction tank, allowing the organic wastewater to enter a pH adjusting tank, adjusting the pH to about 10, introducing the organic wastewater into a flocculation sedimentation tank, adding a flocculating agent into the organic wastewater before flowing into the flocculation sedimentation tank, allowing the flocculated and precipitated product water to flow through a COD detector, and detecting the COD of the product water;
(5) the COD detector outputs a detection result to the control module, the control module receives the test structure and then logically compares the test result with a preset standard value, when the test result is larger than the standard value, the control module outputs feedback control signals to the first electromagnetic valve and the second electromagnetic valve to control the first electromagnetic valve to be closed and the second electromagnetic valve to be opened, and the produced water is refluxed and the steps are repeated; when the test result is less than or equal to the standard value, the quality of the produced water reaches the standard, the control module outputs feedback control signals to the first electromagnetic valve and the second electromagnetic valve, the first electromagnetic valve is controlled to be opened, the second electromagnetic valve is controlled to be closed, and the produced water is discharged as purified water.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides an organic wastewater treatment system combines together ozone oxidation and photocatalytic oxidation, and the catalytic oxidation reaction takes place for the catalyst of suspension in ozone and the organic waste water, produces a large amount of hydroxyl free radicals that have strong oxidizing property, and hydroxyl free radical is difficult degradation, macromolecule organic pollutant decomposes into nontoxic, the low toxicity micromolecule material in with the organic waste water, and some pollutants are direct oxidative decomposition for CO2And H2And O. Meanwhile, under the action of ultraviolet light catalysis, the generation amount of hydroxyl radicals is remarkably improved, the oxidation effect on organic pollutants is remarkably enhanced, the ozone utilization rate and the oxidation capacity are improved, and the adding amount of ozone is reduced. The defect that the organic matters in the wastewater are difficult to completely treat by a single photocatalysis process is overcome, the catalysis efficiency of the photocatalysis process is improved, and the degradation rate of the organic matters in the wastewater is further improved.
(2) The utility model discloses a pH equalizing basin, charge device and sedimentation tank realize the sedimentation separation of insoluble substance, can separate from this and obtain solid waste and water purification, and the play water after the processing can directly discharge or the retrieval and utilization.
(3) The utility model discloses oxidant pre-oxidation technology has been add at organic wastewater treatment system's technology front end, can decompose and destroy the partly organic matter in the organic wastewater through pre-oxidation treatment, is favorable to the coupling oxidation reaction, can guarantee follow-up coupling oxidation technology's treatment effect, further promotes treatment effeciency, can improve ozone utilization ratio and reduce ozone emission to atmospheric pollution.
Drawings
FIG. 1 is a schematic structural view of an organic wastewater treatment system according to an embodiment of the present invention.
Wherein, 1-an oxidant storage tank; 2-a mixing device; 3-a reaction tank; 4-longitudinal partition board; 5-a reaction chamber; 6-a photocatalytic module; 7-an ozone generating device; 8-an ozone injection device; 9-pH adjusting tank; 10-a sedimentation tank; 11-a dosing device; 12-a COD detector; 13-main water purification pipe; 14-a first manifold; 15-a second manifold; 16-a first solenoid valve; 17-second solenoid valve.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In a specific embodiment, the utility model provides an ozone oxidation cooperates organic waste water treatment system device of photocatalysis, and organic waste water treatment system device is shown in fig. 1, including along organic waste water flow to reaction tank 3, pH equalizing basin 9 and the sedimentation tank 10 that connects gradually, insert charge device 11 on the connecting pipeline of pH equalizing basin 9 and sedimentation tank 10.
The reaction tank 3 comprises a shell, at least one longitudinal partition plate 4 is arranged in the shell at intervals, the partition plate divides the interior of the shell into at least two reaction chambers 5 with communicated tops, and at least one photocatalytic assembly 6 is vertically arranged in each reaction chamber 5; further, an even number of photocatalytic assemblies 6 are arranged in the reaction chamber 5, and the photocatalytic assemblies 6 are arranged in the reaction chamber 5 in a matrix manner. The bottom of the reaction chamber 5 is provided with an ozone injection device 8, and the ozone injection device 8 is externally connected with an ozone generating device 7. Ozone catalyst particles are suspended in the organic exhaust gas injected into the housing.
The photocatalytic component 6 comprises an ultraviolet lamp tube, a quartz sleeve and a stainless steel wire net which are sequentially sleeved from inside to outside, the ultraviolet lamp tube is embedded inside the quartz sleeve, and the quartz sleeve and the stainless steel wire net are arranged at intervals. The stainless steel wire mesh is coated with a catalyst layer, and the catalyst layer can be a titanium dioxide layer, a zinc oxide layer, a zirconium dioxide layer, a tungsten oxide layer or a silicon dioxide layer. The inner wall of the shell is provided with a reflecting layer, and the surfaces of the two sides of the longitudinal partition plate 4 are provided with the reflecting layers.
The organic wastewater treatment system device also comprises a mixing device 2 and an oxidant storage tank 1 which is externally connected with the mixing device, the outlet end of the mixing device 2 is connected to a reaction tank 3, the oxidant storage tank 1 provides an oxidant for the mixing device 2, and the organic wastewater enters the mixing device 2 to be mixed with the oxidant and then is injected into the reaction tank 3.
The ozone injection device 8 comprises an ozone injection pipe network and an ozone nozzle arranged on the ozone injection pipe network. The ozone injection pipe network is in a grid structure which is staggered transversely and longitudinally, and the injection direction of the ozone nozzle is opposite to the photocatalytic component 6 positioned above the ozone nozzle. The photocatalytic components 6 arranged at the bottom of each reaction chamber 5 are combined into one path and then connected to an ozone generating device 7.
Coagulant is stored in the dosing device 11 and comprises polyaluminium chloride, polyaluminium sulfate, polyferric chloride, polyferric sulfate, polyacrylamide or sodium alginate.
The outlet end of the main water purification pipe 13 of the sedimentation tank 10 is divided into a first branch pipe 14 and a second branch pipe 15, the first branch pipe 14 is discharged outside, and the outlet end of the second branch pipe 15 is connected back to the mixing device 2. The main water pipe 13 is provided with a COD detector 12, and the COD detector 12 is used for detecting COD in the purified water discharged from the sedimentation basin 10. The first branch pipe 14 is provided with a first solenoid valve 16, and the second branch pipe 15 is provided with a second solenoid valve 17.
The organic wastewater treatment system device also comprises a control module, the control module is electrically connected with the COD detector 12, the control module is respectively and independently connected with the first electromagnetic valve 16 and the second electromagnetic valve 17 in a feedback manner, the control module is used for receiving a test result obtained by the COD detector 12, and after logical comparison is carried out on the test result and a preset COD standard value, the control module independently controls the first electromagnetic valve 16 and the second electromagnetic valve 17 according to the comparison result.
In another embodiment, the present invention provides a method for purifying organic wastewater by using the above treatment system, the method specifically comprises the following steps:
(1) the oxidant storage tank 1 provides an oxidant hydrogen peroxide to the mixing device 2, organic wastewater enters the mixing device 2 and is mixed with the hydrogen peroxide to realize preliminary oxidation, and the organic wastewater after the preliminary oxidation is introduced into the reaction tank 3;
(2) ultraviolet light emitted by the ultraviolet lamp tube penetrates through the quartz sleeve and irradiates on the catalyst layer coated on the surface of the stainless steel wire mesh, and the catalyst generates hydroxyl radicals under the photocatalysis;
(3) the ozone generating device 7 sprays ozone into the organic wastewater through the ozone spraying device 8, the ozone and ozone catalyst particles suspended in the organic wastewater generate ozone catalytic oxidation reaction to generate a large amount of hydroxyl radicals, and the hydroxyl radicals deeply oxidize organic pollutants in the organic wastewater;
(4) discharging the oxidized organic wastewater from the reaction tank 3, allowing the organic wastewater to enter a pH adjusting tank 9, adjusting the pH value to about 10, introducing the organic wastewater into a flocculation sedimentation tank, adding a flocculating agent into the organic wastewater before the organic wastewater flows into the flocculation sedimentation tank, allowing the flocculated and precipitated product water to flow through a COD detector 12, and detecting the COD of the product water;
(5) the COD detector 12 outputs the detection result to the control module, the control module receives the test structure and then logically compares the test result with a preset standard value, when the test result is greater than the standard value, the control module outputs a feedback control signal to the first electromagnetic valve 16 and the second electromagnetic valve 17, the second electromagnetic valve 17 is opened while the first electromagnetic valve 16 is controlled to be closed, and the produced water is refluxed and the steps are repeated; when the test result is less than or equal to the standard value, the water quality of the produced water is up to the standard, the control module outputs feedback control signals to the first electromagnetic valve 16 and the second electromagnetic valve 17, the first electromagnetic valve 16 is controlled to be opened, meanwhile, the second electromagnetic valve 17 is controlled to be closed, and the produced water is discharged as purified water.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. An organic wastewater treatment system device combining ozone oxidation and photocatalysis is characterized by comprising a reaction tank, a pH adjusting tank and a sedimentation tank which are sequentially connected along the flow direction of organic wastewater, wherein a dosing device is connected to a connecting pipeline of the pH adjusting tank and the sedimentation tank;
the reaction tank comprises a shell, at least one longitudinal partition plate is arranged in the shell at intervals, the partition plate divides the interior of the shell into at least two reaction chambers with communicated tops, and at least one photocatalytic assembly is vertically arranged in each reaction chamber; the bottom of the reaction chamber is provided with an ozone injection device, and the ozone injection device is externally connected with an ozone generating device.
2. The organic wastewater treatment system device according to claim 1, wherein the photocatalytic component comprises an ultraviolet lamp tube, a quartz sleeve and a stainless steel wire mesh which are sequentially sleeved from inside to outside, the ultraviolet lamp tube is embedded in the quartz sleeve, and the quartz sleeve and the stainless steel wire mesh are arranged at intervals;
the stainless steel wire mesh is coated with a catalyst layer;
the catalyst layer is a titanium dioxide layer, a zinc oxide layer, a zirconium dioxide layer, a tungsten oxide layer or a silicon dioxide layer.
3. The organic wastewater treatment system device according to claim 1, wherein the inner wall of the housing is provided with a light reflecting layer;
and the surfaces of two sides of the longitudinal partition board are provided with reflecting layers.
4. The organic wastewater treatment system device according to claim 1, further comprising a mixing device and an oxidant storage tank connected to the mixing device, wherein an outlet end of the mixing device is connected to the reaction tank, the oxidant storage tank supplies an oxidant to the mixing device, and the organic wastewater enters the mixing device to be mixed with the oxidant and then is injected into the reaction tank.
5. The apparatus of claim 1, wherein an even number of photocatalytic modules are disposed in the reaction chamber, and the photocatalytic modules are arranged in a matrix in the reaction chamber.
6. The organic wastewater treatment system device according to claim 1, wherein the ozone injection device comprises an ozone injection pipe network and an ozone nozzle arranged on the ozone injection pipe network;
the ozone injection pipe network is in a grid structure which is staggered transversely and longitudinally, and the injection direction of the ozone nozzle is over against the photocatalytic component above the ozone nozzle;
the photocatalytic components arranged at the bottom of each reaction chamber are combined into one path and then connected into the ozone generating device.
7. The organic wastewater treatment system apparatus according to claim 1, wherein ozone catalyst particles are suspended in the organic exhaust gas injected into the housing.
8. The organic wastewater treatment system device according to claim 1, wherein a coagulant is stored in the dosing device;
the coagulant comprises polyaluminium chloride, polyaluminium sulfate, polyferric chloride, polyferric sulfate, polyacrylamide or sodium alginate.
9. The organic wastewater treatment system device of claim 4, wherein the outlet end of the main water purification pipe of the sedimentation basin is divided into a first branch pipe and a second branch pipe, the first branch pipe is arranged outside the outer row, and the outlet end of the second branch pipe is connected back to the mixing device;
the COD detector is arranged on the main water purification pipe and is used for detecting COD in the purified water discharged from the sedimentation tank;
the first branch pipe is provided with a first electromagnetic valve, and the second branch pipe is provided with a second electromagnetic valve.
10. The organic wastewater treatment system device according to claim 9, further comprising a control module, wherein the control module is electrically connected to the COD detector, the control module is separately and independently connected to the first solenoid valve and the second solenoid valve in a feedback manner, and the control module is configured to receive a test result obtained by the COD detector, perform logical comparison with a preset COD standard value, and independently control the first solenoid valve and the second solenoid valve according to a comparison result.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115367959A (en) * | 2022-08-22 | 2022-11-22 | 石家庄高新技术产业开发区供水排水公司 | Wastewater treatment device for ozone/hydrogen peroxide synergistic oxidation coupling biochemical tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115367959A (en) * | 2022-08-22 | 2022-11-22 | 石家庄高新技术产业开发区供水排水公司 | Wastewater treatment device for ozone/hydrogen peroxide synergistic oxidation coupling biochemical tank |
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