CN110937678A - Primary removing equipment for electroplating wastewater COD based on ozone oxidation - Google Patents
Primary removing equipment for electroplating wastewater COD based on ozone oxidation Download PDFInfo
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- CN110937678A CN110937678A CN201911290480.9A CN201911290480A CN110937678A CN 110937678 A CN110937678 A CN 110937678A CN 201911290480 A CN201911290480 A CN 201911290480A CN 110937678 A CN110937678 A CN 110937678A
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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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/23—O3
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Abstract
The invention discloses a primary removing device of electroplating wastewater COD based on ozone oxidation, which comprises a reaction kettle, a bottom frame and a top cover plate, wherein an ozone concentration adjusting mechanism communicated with the inside of the reaction kettle and used for adjusting the concentration of ozone in the reaction kettle is fixed on the inner side of the bottom frame, a PH adjusting mechanism is fixed at a position close to the top of the side end of the reaction kettle, the adjustment of the concentration of ozone and PH in the reaction kettle is completed through the ozone concentration adjusting mechanism and the PH adjusting mechanism, a control module adjusts the power of a second ozone generator through the statistical analysis of data of a first ozone concentration tester and a second ozone concentration tester, so that the concentration of ozone flowing through a middle cylinder reaches a preset concentration value, the concentration of ozone in the reaction kettle is kept in a relatively stable state, and the electroplating wastewater COD treatment by ozone reaches a relatively stable state, the usage rate of ozone reaches a maximum.
Description
Technical Field
The invention relates to the technical field of electroplating wastewater COD primary treatment equipment, in particular to primary removing equipment for electroplating wastewater COD based on ozone oxidation.
Background
In recent years, with the rapid development of electroplating industry in China, the discharge amount of electroplating wastewater is increasing, and the electroplating wastewater is one of the most difficult industrial wastewater to treat because the wastewater quality is complex and has high volatility. However, the treatment and monitoring of the waste water in the electroplating industry mainly focuses on the pollution of heavy metal ions, and until recently, the harm of organic pollutants in the electroplating waste water has attracted high attention from the electroplating industry and the environmental protection. Organic pollutants in the electroplating wastewater are difficult to biodegrade and easy to accumulate in organisms, and the wastewater can seriously threaten human beings when being discharged into the environment.
The Chemical Oxygen Demand (COD) is the amount of reducing substances needing to be oxidized in a water sample measured by a chemical method. The oxygen equivalent of a substance (typically an organic substance) that can be oxidized by a strong oxidizing agent in wastewater, wastewater treatment plant effluent, and contaminated water. In the research of river pollution and industrial wastewater properties and the operation management of wastewater treatment plants, the method is an important and relatively fast measurable organic pollution parameter, and at present, common treatment methods related to organic pollutants in electroplating wastewater include an ozone oxidation method, an adsorption method, a coagulation method and the like.
The ozone oxidation method is a method of purifying and sterilizing wastewater using ozone as an oxidizing agent. Ozone has a strong oxidizing power, and thus is widely used in environmental protection, chemical engineering, and the like. The ozone oxidation treatment of wastewater uses air or oxygen containing low concentration ozone. The main technological facilities consist of ozone generator and gas-water contact equipment. The ozone oxidation method is mainly used for water disinfection, removal of pollutants such as phenol, cyanogen and the like in water, water decolorization, removal of metal ions such as iron, manganese and the like in water, and removal of peculiar smell and odor.
The pH value of ozone concentration and solution influences great among the elementary ozone treatment process of electroplating effluent COD, and the direct influence treatment effect of ozone concentration value change, and electroplating effluent COD uses single ozone to provide the source when utilizing ozone to carry out oxidation treatment among the prior art, and the ozone concentration that single ozone source provided is extremely unstable, seriously influences the treatment effect, and the pH adjustment can not be adjusted according to waste water particular case moreover, and the oxidation performance of indirect influence ozone, and then produces the influence to the treatment effect.
Disclosure of Invention
The invention aims to provide a primary removing device for electroplating wastewater COD based on ozone oxidation, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a primary removing device of electroplating wastewater COD based on ozone oxidation, which comprises a reaction kettle, a bottom frame and a top cover plate, the top end of the reaction kettle is sleeved with a top cover plate, the inner side of the top cover plate is rotatably provided with a stirring rod for stirring the electroplating wastewater in the reaction kettle, the stirring rod is driven by a stirring motor, the reaction kettle is fixed on the upper surface of the bottom frame, an ozone concentration adjusting mechanism which is communicated with the inside of the reaction kettle and is used for adjusting the ozone concentration in the reaction kettle is fixed on the inner side of the bottom frame, a PH adjusting mechanism is fixed at the position of the side end of the reaction kettle, which is close to the top, the adjustment of the concentration of ozone and PH in the reaction kettle is completed through the ozone concentration adjusting mechanism and the PH adjusting mechanism, a liquid inlet for the electroplating wastewater to enter and a liquid outlet for the electroplating wastewater after the primary treatment to flow out are also formed at the side end of the reaction kettle.
Preferably, the ozone concentration adjusting mechanism comprises a first ozone generator, a second ozone generator, an intermediate storage cavity and a connecting cylinder, an ozone outlet of the second ozone generator is communicated with an air inlet of the intermediate storage cavity, an ozone outlet of the first ozone generator and an air outlet of the intermediate storage cavity are respectively communicated with the inside of the connecting cylinder, and the other end of the connecting cylinder is connected to the inside of the reaction kettle and is used for providing ozone for the inside of the reaction kettle to complete the primary oxidation treatment process of the electroplating wastewater COD inside the reaction kettle.
Preferably, the first ozone generator is an ozone generator with constant power, and the second ozone generator is an ozone generator with a power adjustment switch, and is used for supplementing the ozone concentration provided by the first ozone generator.
Preferably, the connecting cylinder comprises a middle cylinder, a first connecting port, a second connecting port, a dispersing cavity and a communicating cavity, the first connecting port is formed in the side end of the middle cylinder, the ozone outlet of the first ozone generator is fixedly communicated with the first connecting port, the second connecting port is formed in the bottom end of the middle cylinder, the gas outlet of the middle storage cavity is fixedly communicated with the second connecting port, and the dispersing cavity and the communicating cavity are arranged at the bottom end of the reaction kettle and used for conveying the ozone in the middle cylinder to the reaction kettle.
Preferably, the pH adjusting mechanism comprises a lye tank and an acid tank, wherein the lye tank is fixed on the outer side of the top end of the reaction kettle and is internally provided with an alkaline adjusting liquid for adjusting the pH inside the reaction kettle, and the acid tank is fixed on the side end of the reaction kettle and is internally provided with an acidic adjusting liquid.
Preferably, the device also comprises a control module, a PH tester,
wherein the PH determinator is used for measuring the pH value of the electroplating wastewater in the reaction kettle, the signal output end of the PH determinator is in signal connection with the signal input end of the control module, the control module is also in signal connection with a base solution tank bottom valve matched with the base solution tank and an acid solution tank bottom valve matched with the acid solution tank respectively,
the PH value of the electroplating wastewater in the reaction kettle is measured by the PH measuring instrument, then data information is transmitted to the control module, the control module judges the detected PH value, if the wastewater is acidic, the bottom valve of the alkaline liquid tank is opened by the control module to enable the alkaline liquid to complete the adjustment of the wastewater in the neutral direction, if the wastewater is alkaline, the bottom valve of the acid liquid tank is opened by the control module to enable the acid liquid to complete the adjustment of the wastewater in the neutral direction, and therefore the adjustment of the whole neutral direction of the wastewater is completed.
Preferably, the ozone concentration measuring device further comprises a first ozone concentration measuring instrument, a second ozone concentration measuring instrument,
first ozone concentration apparatus installs the inboard position that is close to the dispersion chamber of a section of thick bamboo in the middle of being used for monitoring letting in the inside ozone concentration of reation kettle, second ozone concentration apparatus is installed the inboard position that is close to a section of thick bamboo in the middle of the second connector is used for monitoring the inside ozone concentration that flows of chamber in the middle of storing, just the signal output part of first ozone concentration apparatus and second ozone concentration apparatus respectively with signal connection between the control module.
Preferably, a first interface valve is arranged on the inner side of the first connecting port in a matched manner, a second interface valve is arranged on the inner side of the second connecting port in a matched manner, and the first interface valve and the second interface valve are respectively in signal connection with the control module;
when the treatment is started, the first interface valve is opened to enable ozone generated by the first ozone generator to flow into the reaction kettle through the first connector and the middle cylinder to carry out ozone oxidation treatment on electroplating wastewater COD, the first ozone concentration determinator is used for monitoring the ozone concentration, and when the ozone concentration is lower than a preset value, the control module opens the second interface valve to enable the ozone generated by the second ozone generator to flow into the middle cylinder after passing through the middle storage cavity to supplement the ozone concentration, so that the ozone concentration in the reaction kettle is kept in a relatively stable state, and the treatment effect is improved.
Preferably, a plurality of check valves are arranged in the communicating cavity and used for completing the ozone entering into the reaction kettle so as to prevent the wastewater from entering the communicating cavity.
Preferably, the inner side of the top cover plate is provided with a plurality of air holes.
Compared with the prior art, the invention has the beneficial effects that:
the first ozone generator, the second ozone generator and the middle storage cavity are arranged on the bottom frame of the reaction kettle, so that ozone generated by the first ozone generator flows into the reaction kettle through the middle cylinder of the first connecting port to carry out ozone oxidation treatment on electroplating wastewater COD, the control module can be used for monitoring the ozone concentration passing through the middle cylinder through the first ozone concentration tester, when the ozone concentration is lower than a preset value, the control module opens the second ozone generator to enable the generated ozone to flow into the middle cylinder through the middle storage cavity to supplement the ozone concentration, the second ozone concentration tester is used for monitoring the ozone concentration flowing out of the middle storage cavity, ozone concentration data are transmitted to the control module, the control module adjusts the power of the second ozone generator through the statistical analysis of the data of the first ozone concentration tester and the data of the second ozone concentration tester, make the ozone concentration of a section of thick bamboo in the middle of flowing through reach preset concentration value to make the inside ozone concentration of reation kettle keep relatively stable state, make ozone reach relatively stable state to electroplating effluent COD handles, the rate of utilization of ozone reaches the maximum value.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a connector barrel according to the present invention;
fig. 3 is a general principle framework diagram of the present invention.
In the figure: 1-a reaction kettle; 11-a liquid inlet; 12-a liquid outlet; 13-a lye tank; 131-a base valve of the lye tank; 14-an acid solution tank; 141-acid tank bottom valve; 15-PH meter; 2-a chassis; 3-a top cover plate; 31-a stirring motor; 32-a stirring rod; 4-a first ozone generator; 5-a second ozone generator; 6-intermediate storage chamber; 7-connecting cylinder; 71-an intermediate cylinder; 72-a first connection port; 73-a second connection port; 721-a first interface valve; 731-second interface valve; 74-a dispersion chamber; 75-a communicating chamber; 76-a first ozone concentration meter; 77-a second ozone concentration meter; 8-a control module.
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. 1-3, the present invention provides a technical solution: the primary removing equipment for the electroplating wastewater COD based on ozone oxidation comprises a reaction kettle 1, a bottom frame 2 and a top cover plate 3, wherein the top end of the reaction kettle 1 is sleeved with the top cover plate 3, a stirring rod 32 used for stirring the electroplating wastewater in the reaction kettle 1 is rotatably arranged on the inner side of the top cover plate 3, the stirring rod 32 is driven by a stirring motor 31, the reaction kettle 1 is fixed on the bottom frame 2, an ozone concentration adjusting mechanism communicated with the interior of the reaction kettle 1 and used for adjusting the ozone concentration in the reaction kettle 1 is fixed on the inner side of the bottom frame 2, and a PH adjusting mechanism is fixed at the position, close to the top, of the side end of the reaction kettle 1;
accomplish through ozone concentration adjustment mechanism with PH adjustment mechanism is right the inside ozone of reation kettle 1 and the adjustment of PH concentration, reation kettle 1's side is still offered and is used for the inlet 11 that electroplating effluent got into and is used for the electroplating effluent outflow 12 of the electroplating effluent that the primary treatment was accomplished.
The ozone concentration adjusting mechanism comprises a first ozone generator 4, a second ozone generator 5, an intermediate storage cavity 6 and a connecting cylinder 7, wherein the first ozone generator 4 is an ozone generator with constant power, and the power of the first ozone generator 4 for generating ozone is determined according to the capacity of the reaction kettle 1 and is used for providing constant ozone oxidation treatment for the interior of the reaction kettle 1;
the second ozone generator 5 is an ozone generator with a power adjusting switch and is used for supplementing the concentration of the ozone provided by the first ozone generator 4, when the concentration of the ozone generated by the first ozone generator 4 fluctuates, the second ozone generator 5 supplements the concentration of the ozone, and the ozone reaching the constant concentration is used for treating the electroplating wastewater COD in the reaction kettle 1;
the ozone outlet of the second ozone generator 5 is communicated with the air inlet of the middle storage cavity 6, the ozone outlet of the first ozone generator 4 and the air outlet of the middle storage cavity 6 are respectively communicated with the inside of the connecting cylinder 7, and the other end of the connecting cylinder 7 is connected to the inside of the reaction kettle 1 and is used for providing ozone for the inside of the reaction kettle 1 to complete the primary oxidation treatment process of the electroplating wastewater COD inside the reaction kettle 1.
The connecting cylinder 7 comprises an intermediate cylinder 71, a first connecting port 72, a second connecting port 73, a dispersing cavity 74 and a communicating cavity 75, the first connecting port 72 is formed in the side end of the intermediate cylinder 71, the ozone outlet of the first ozone generator 4 is fixedly communicated with the first connecting port 72, the second connecting port 73 is formed in the bottom end of the intermediate cylinder 71, the air outlet of the intermediate storage cavity 6 is fixedly communicated with the second connecting port 73, and the dispersing cavity 74 and the communicating cavity 75 are installed at the bottom end of the reaction kettle 1 and used for conveying the ozone in the intermediate cylinder 71 to the inside of the reaction kettle 1.
The pH adjusting mechanism comprises a lye tank 13 and an acid tank 14, wherein the lye tank 13 is fixed on the outer side of the reaction kettle 1 close to the top end and is internally provided with an alkaline adjusting liquid for adjusting the pH inside the reaction kettle 1, and the acid tank 14 is fixed on the side end of the reaction kettle 1 and is internally provided with an acid adjusting liquid.
Also comprises a control module 8, a PH tester 15,
wherein, the PH determinator 15 is used for measuring the pH value of the electroplating wastewater in the reaction kettle 1, the signal output end of the PH determinator is in signal connection with the signal input end of the control module 8, the control module 8 is also in signal connection with a base solution tank bottom valve 131 matched with the base solution tank 13 and an acid solution tank bottom valve 141 matched with the acid solution tank 14 respectively,
PH apparatus 15 surveys the PH value of reation kettle 1 inside electroplating effluent, then transmits data information to control module 8, control module 8 judges the PH value that detects, if waste water is acid, opens lye tank bottom valve 131 through control module 8 and makes lye accomplish the adjustment towards neutral direction to waste water, if waste water is alkaline, then opens acid tank bottom valve 141 through control module 8 and makes the adjustment towards neutral direction of acidizing fluid completion waste water to accomplish the adjustment of the whole neutral direction of waste water.
Further comprises a first ozone concentration measuring instrument 76, a second ozone concentration measuring instrument 77,
the first ozone concentration measuring instrument 76 is installed at the position, close to the dispersion cavity 74, on the inner side of the middle cylinder 71 and used for monitoring the concentration of ozone introduced into the reaction kettle 1, the second ozone concentration measuring instrument 77 is installed at the position, close to the middle cylinder 71, on the inner side of the second connecting port 73 and used for monitoring the concentration of ozone flowing out of the middle storage cavity 6, and the signal output ends of the first ozone concentration measuring instrument 76 and the second ozone concentration measuring instrument 77 are respectively connected with the control module 8 through signals.
A first interface valve 721 is arranged on the inner side of the first connecting port 72 in a matching manner, a second interface valve 731 is arranged on the inner side of the second connecting port 73 in a matching manner, and the first interface valve 721 and the second interface valve 731 are in signal connection with the control module 8 respectively;
when the treatment is started, the first interface valve 721 is opened to make the ozone generated by the first ozone generator 4 flow into the reaction kettle 1 through the first connection port 72 and the intermediate cylinder 71 to perform ozone oxidation treatment on the electroplating wastewater COD, the first ozone concentration measuring instrument 76 is used for monitoring the ozone concentration, and when the ozone concentration is lower than a preset value, the control module 8 opens the second interface valve 731 to make the ozone generated by the second ozone generator 5 flow into the intermediate cylinder 71 through the intermediate storage cavity 6 to supplement the ozone concentration, so that the ozone concentration inside the reaction kettle 1 is kept in a relatively stable state, and the treatment effect is improved.
In order to make ozone enter the inside of the reaction kettle 1 and prevent wastewater from entering the inside of the middle barrel 7, a plurality of check valves are opened inside the communication cavity 75 to complete the ozone entering the inside of the reaction kettle 1 and prevent wastewater from entering the communication cavity 75.
In order to facilitate the discharge of the treated ozone out of the reaction kettle 1, a plurality of air holes are formed in the inner side of the top cover plate 3.
In conclusion, when the device is used, electroplating wastewater is sent into the reaction kettle 1 through the liquid inlet 11, then the pH meter 15 measures the pH degree of the electroplating wastewater, data information is sent to the control module 8, the alkali liquor tank 13 and the acid liquor tank 14 cooperate to perform the pH adjustment treatment on the electroplating wastewater, so that the pH of the electroplating wastewater is kept between 7.0 and 7.5, and the stirring motor 31 is started to drive the stirring rod 32 to complete the adjustment of the integral uniformity of the electroplating wastewater during the adjustment;
after the PH adjustment is completed, the control module 8 controls the first ozone generator 4 to work and opens the first interface valve 721, so that the ozone generated by the first ozone generator 4 flows into the reaction kettle 1 through the first connection port 72 and the intermediate cylinder 71 to perform ozone oxidation treatment on the electroplating wastewater COD, the control module 8 monitors the ozone concentration passing through the intermediate cylinder 71 through the first ozone concentration determinator 76, when the ozone concentration is lower than the preset value, the control module 8 opens the second interface valve 731, so that the ozone generated by the second ozone generator 5 flows into the intermediate cylinder 71 through the intermediate storage cavity 6 to supplement the ozone concentration, the second ozone concentration determinator 77 monitors the ozone concentration flowing out of the intermediate storage cavity 6, and transmits the ozone concentration data to the control module 8,
the control module 8 adjusts the power of the second ozone generator 5 through statistical analysis of data of the first ozone concentration measuring instrument 76 and the second ozone concentration measuring instrument 77, so that the concentration of ozone flowing through the middle cylinder 71 reaches a preset concentration value, the concentration of ozone inside the reaction kettle 1 is kept in a relatively stable state, the COD (chemical oxygen demand) treatment of electroplating wastewater by ozone reaches a relatively stable state, and the utilization rate of ozone reaches a maximum value;
ozone that the processing was accomplished in the processing procedure flows through the bleeder vent of top apron 3, discharges into the atmosphere, and reation kettle 1 is inside to be exported through liquid outlet 12 through the electroplating effluent COD of primary treatment and carries out the post processing, and is simple and convenient, economical and practical.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (10)
1. The utility model provides an electroplating effluent COD's elementary removal equipment based on ozone oxidation, includes reation kettle (1), chassis (2) and top apron (3), top apron (3) have been cup jointed on the top of reation kettle (1), the inboard of top apron (3) is rotated and is installed puddler (32) that are used for reation kettle (1) inside electroplating effluent to stir, just puddler (32) drive its characterized in that through agitator motor (31): the higher authority in chassis (2) is fixed in reation kettle (1), the inboard of chassis (2) is fixed with the ozone concentration guiding mechanism who is used for adjusting reation kettle (1) inside ozone concentration with reation kettle (1) inside intercommunication, just the position that the side of reation kettle (1) is close to the top is fixed with PH guiding mechanism, through ozone concentration guiding mechanism with PH guiding mechanism accomplishes to the adjustment of inside ozone of reation kettle (1) and PH concentration, inlet (11) that are used for electroplating effluent to get into and liquid outlet (12) that the electroplating effluent that is used for primary treatment to accomplish flowed out are still seted up to the side of reation kettle (1).
2. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to the claim 1, characterized in that: ozone concentration adjustment mechanism includes first ozone generator (4), second ozone generator (5), middle storage chamber (6) and connecting cylinder (7), the ozone export of second ozone generator (5) and the air inlet intercommunication of middle storage chamber (6), the ozone export of first ozone generator (4) and the gas outlet of middle storage chamber (6) communicate with the inside of connecting cylinder (7) respectively, the other end of connecting cylinder (7) is connected to the inside of reation kettle (1) and is used for accomplishing the primary oxidation treatment process to the inside electroplating effluent COD of reation kettle (1) for inside providing ozone to reation kettle (1).
3. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to the claim 2, characterized in that: the first ozone generator (4) is an ozone generator with constant power, and the second ozone generator (5) is an ozone generator with a power adjusting switch and is used for supplementing the ozone concentration provided by the first ozone generator (4).
4. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to the claim 2, characterized in that: the connecting cylinder (7) comprises an intermediate cylinder (71), a first connecting port (72), a second connecting port (73), a dispersing cavity (74) and a communicating cavity (75), wherein the first connecting port (72) is formed in the side end of the intermediate cylinder (71), an ozone outlet of the first ozone generator (4) is fixedly communicated with the first connecting port (72), the second connecting port (73) is formed in the bottom end of the intermediate cylinder (71), a gas outlet of the intermediate storage cavity (6) is fixedly communicated with the second connecting port (73), and the dispersing cavity (74) and the communicating cavity (75) are installed at the bottom end of the reaction kettle (1) and used for conveying the ozone inside the intermediate cylinder (71) to the inside of the reaction kettle (1).
5. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to claim 4, characterized in that: PH guiding mechanism includes lye tank (13) and acid liquor tank (14), lye tank (13) are fixed and are close to the outside on top and place the alkaline conditioning fluid that is used for the inside PH adjustment of reation kettle (1) in its inside, acid liquor tank (14) are fixed and are placed the acid conditioning fluid at the side of reation kettle (1) and in its inside.
6. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to claim 5, characterized in that: also comprises the following steps of (1) preparing,
a control module (8) for controlling the operation of the motor,
a PH meter (15) for measuring the pH value,
wherein the PH tester (15) is used for measuring the pH value of electroplating wastewater in the reaction kettle (1), the signal output end of the PH tester is in signal connection with the signal input end of the control module (8), the control module (8) is also in signal connection with a base solution tank bottom valve (131) matched with the base solution tank (13) and a pH solution tank bottom valve (141) matched with the pH solution tank (14) respectively,
PH apparatus (15) survey the PH value of reation kettle (1) inside electroplating effluent, then transmit data information to control module (8), control module (8) judge the PH value that detects, if waste water is acid, open lye tank bottom valve (131) through control module (8) and make alkali lye accomplish the adjustment towards neutral direction to waste water, if waste water is alkaline, open acid tank bottom valve (141) through control module (8) and make the acidizing fluid accomplish the adjustment towards neutral direction of waste water to accomplish the adjustment of the whole neutral direction of waste water.
7. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to claim 6, characterized in that: also comprises the following steps of (1) preparing,
a first ozone concentration measuring instrument (76),
a second ozone concentration measuring instrument (77),
the position that first ozone concentration apparatus (76) are installed and are close to dispersion chamber (74) in the inboard of middle section of thick bamboo (71) is used for monitoring letting in the inside ozone concentration of reation kettle (1), second ozone concentration apparatus (77) are installed the inboard of second connector (73) is close to the position of middle section of thick bamboo (71) and is used for monitoring the inside ozone concentration that flows out of middle storage chamber (6), just the signal output part of first ozone concentration apparatus (76) and second ozone concentration apparatus (77) respectively with signal connection between control module (8).
8. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to claim 7, characterized in that: a first interface valve (721) is arranged on the inner side of the first connecting port (72) in a matched manner, a second interface valve (731) is arranged on the inner side of the second connecting port (73) in a matched manner, and the first interface valve (721) and the second interface valve (731) are respectively in signal connection with the control module (8);
when the treatment is started, the first interface valve (721) is opened to enable ozone generated by the first ozone generator (4) to flow into the reaction kettle (1) through the first connecting port (72) and the middle cylinder (71) to carry out ozone oxidation treatment on the electroplating wastewater COD, the first ozone concentration measuring instrument (76) is used for monitoring the ozone concentration, and when the ozone concentration is lower than a preset value, the control module (8) opens the second interface valve (731) to enable ozone generated by the second ozone generator (5) to flow into the middle cylinder (71) after passing through the middle storage cavity (6) to supplement the ozone concentration, so that the ozone concentration in the reaction kettle (1) is kept in a relatively stable state, and the treatment effect is improved.
9. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to claim 8, characterized in that: a plurality of check valves are arranged in the communicating cavity (75) and used for completing the process that ozone enters the reaction kettle (1) so as to prevent waste water from entering the communicating cavity (75).
10. The primary removing apparatus for electroplating wastewater COD based on ozone oxidation according to the claim 1, characterized in that: the inner side of the top cover plate (3) is provided with a plurality of air holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911290480.9A CN110937678A (en) | 2019-12-16 | 2019-12-16 | Primary removing equipment for electroplating wastewater COD based on ozone oxidation |
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| CN201911290480.9A CN110937678A (en) | 2019-12-16 | 2019-12-16 | Primary removing equipment for electroplating wastewater COD based on ozone oxidation |
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Citations (4)
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| JP2003236353A (en) * | 2002-02-19 | 2003-08-26 | Advan Riken:Kk | Apparatus for producing ozonized water |
| CN105905953A (en) * | 2016-04-27 | 2016-08-31 | 杭州娃哈哈集团有限公司 | Pure water produced ozone online automatic control method |
| CN206051586U (en) * | 2016-08-29 | 2017-03-29 | 南京易德高臭氧有限公司 | Integrated water processes ozone machine |
| CN207581529U (en) * | 2017-11-20 | 2018-07-06 | 杭州恒畅环保科技有限公司 | Organic matter carries the neutralization pond of ozone-oxidizing device in a kind of reduction electroplating wastewater |
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2019
- 2019-12-16 CN CN201911290480.9A patent/CN110937678A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003236353A (en) * | 2002-02-19 | 2003-08-26 | Advan Riken:Kk | Apparatus for producing ozonized water |
| CN105905953A (en) * | 2016-04-27 | 2016-08-31 | 杭州娃哈哈集团有限公司 | Pure water produced ozone online automatic control method |
| CN206051586U (en) * | 2016-08-29 | 2017-03-29 | 南京易德高臭氧有限公司 | Integrated water processes ozone machine |
| CN207581529U (en) * | 2017-11-20 | 2018-07-06 | 杭州恒畅环保科技有限公司 | Organic matter carries the neutralization pond of ozone-oxidizing device in a kind of reduction electroplating wastewater |
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