CN215756629U - Ozone catalytic oxidation reaction unit system - Google Patents
Ozone catalytic oxidation reaction unit system Download PDFInfo
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- CN215756629U CN215756629U CN202023294710.XU CN202023294710U CN215756629U CN 215756629 U CN215756629 U CN 215756629U CN 202023294710 U CN202023294710 U CN 202023294710U CN 215756629 U CN215756629 U CN 215756629U
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 352
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 215
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 196
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 239000002101 nanobubble Substances 0.000 claims abstract description 76
- 239000002351 wastewater Substances 0.000 claims abstract description 56
- 239000003814 drug Substances 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims description 143
- 238000002156 mixing Methods 0.000 claims description 75
- 239000003054 catalyst Substances 0.000 claims description 71
- 239000007788 liquid Substances 0.000 claims description 51
- 238000005273 aeration Methods 0.000 claims description 43
- 238000010992 reflux Methods 0.000 claims description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 238000006385 ozonation reaction Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 17
- 230000006378 damage Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 10
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
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- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
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- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
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Abstract
The invention discloses an ozone catalytic oxidation reaction device system which comprises an ozone generating unit, a micro-nano bubble generating unit, an ozone catalytic oxidation reaction unit, a medicament adding unit and an ozone destroying unit, wherein ozone generated by the ozone generating unit generates micro-nano bubbles through the micro-nano bubble generating unit, the micro-nano bubbles and wastewater to be treated are dissolved and mixed and then enter the ozone catalytic oxidation reaction unit, the micro-nano bubbles and the wastewater to be treated react in the ozone catalytic oxidation reaction unit, treated water is discharged from the ozone catalytic oxidation reaction unit, and treated residual gas enters the ozone destroying unit from the ozone catalytic oxidation reaction unit and is discharged outwards after being treated by the ozone destroying unit. The invention has the advantages of small occupied area, simple process, low energy consumption, short hydraulic retention time, high ozone utilization rate and good treatment effect.
Description
Technical Field
The invention relates to the field of three-stage cylindrical ozone catalytic oxidation reaction device systems, and particularly belongs to an ozone catalytic oxidation reaction device system.
Background
In recent years, with the improvement of the discharge standard of wastewater to be treated, advanced oxidation technology is increasingly applied to the treatment of wastewater to be treated in a plurality of industrial parks and the advanced treatment of wastewater to be treated in domestic municipal life. Among them, the catalytic ozonation technology is one of the main application technologies in the category of advanced oxidation technology due to the advantages of high oxidation-reduction potential, fast pollutant removal rate, no secondary pollution risk, etc. The ozone catalytic oxidation technology provides important guarantee for the stable standard reaching of COD of the effluent of the wastewater treatment to be treated. The technology is widely applied to the fields of tap water purification, wastewater treatment, flue gas denitration, paper pulp bleaching, fine chemical industry, food and beverage sterilization and the like. The method is particularly widely applied to large-scale environmental protection treatment projects in the industries of municipal water supply advanced treatment, municipal wastewater to be treated and reclaimed water treatment, various degradation-resistant industrial wastewater treatment, flue gas denitration treatment and the like. However, when the existing ozone catalytic oxidation reactor is in actual use, the defects of short three-phase contact time of a catalyst, wastewater to be treated and ozone, low ozone utilization rate, low treatment efficiency, high energy consumption and long reaction time generally exist. Therefore, the invention provides an ozone catalytic oxidation reaction device system.
Disclosure of Invention
The invention provides an ozone catalytic oxidation reaction device system, which solves the problems mentioned in the background technology through the integral optimization design of an ozone generating unit, a micro-nano bubble generating unit, an ozone catalytic oxidation reaction unit, a medicament adding unit and an ozone destroying unit. Meanwhile, the invention can overcome the defects of short contact time of a catalyst, wastewater to be treated and ozone in the existing ozone catalytic oxidation reactor, low ozone utilization rate, low treatment efficiency, large energy consumption and long time consumption, has small occupied area, simple process and low energy consumption, short hydraulic retention time and high ozone utilization rate, can reduce the total ozone adding amount and the total number of the ozone catalytic oxidation reactors, has good treatment effect, and is suitable for being popularized and used as a deep purification COD upgrading device system in the wastewater treatment to be treated.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an ozone catalytic oxidation reaction device system, its characterized in that includes ozone generating unit, micro-nano bubble generating unit, ozone catalytic oxidation reaction unit, the medicament throws the unit, ozone destruction unit, ozone that ozone generating unit produced passes through micro-nano bubble generating unit and generates micro-nano bubble, micro-nano bubble enters into ozone catalytic oxidation reaction unit after dissolving the mixture with the waste water of treating, micro-nano bubble and the waste water of treating after the reaction in ozone catalytic oxidation reaction unit, the water after the processing is discharged from ozone catalytic oxidation reaction unit, the surplus gas after the processing gets into ozone destruction unit from ozone catalytic oxidation reaction unit, outwards discharge after ozone destruction unit handles, the medicament throws the unit and can throw the medicament with one unit connection in micro-nano bubble generating unit, ozone catalytic oxidation reaction unit, ozone destruction unit three units, the agent is thrown with two unit connection of unit can with micro-nano bubble generation unit, ozone catalytic oxidation reaction unit, in the three unit of ozone destruction unit and is thrown the agent, the agent is thrown with three unit connection in the unit can all be connected with micro-nano bubble generation unit, ozone catalytic oxidation reaction unit, the ozone destroys the three unit and is thrown the agent, ozone catalytic oxidation reaction unit has ozone catalytic oxidation reactor, circulating pump subassembly, circulation pipeline subassembly, has the circulation to import and export on the ozone catalytic oxidation reactor, and circulation pipeline subassembly is imported and exported with circulating pump subassembly series connection on the ozone catalytic oxidation reactor, remain to handle waste water import and export on the ozone catalytic oxidation reactor, ozone catalytic oxidation reactor can be connected with the waste water of treating through the circulation pipeline subassembly, the circulation volume of circulation pipeline subassembly can be 1 ~ 300 times of the waste water treatment volume of treating to handle in the ozone catalytic oxidation reaction unit .
Preferably, the ozone generating unit can adopt one or more than one of an air source and an oxygen source to produce ozone;
the micro-nano bubble generating unit can be one or more than one combination of a gas-liquid mixing pump, a micro-nano aeration head and an ejector;
the ozone catalytic oxidation reactor is provided with a shell and a catalyst, wherein the catalyst is arranged in the shell, the shell can be made of metal or nonmetal materials, and the shell can be made of metal and nonmetal composite materials;
the medicament added by the medicament adding unit can be one or more than one of hydrogen peroxide, sodium sulfite, sodium thiosulfate, potassium iodide, sodium hypochlorite, polyacrylamide, aluminum chloride and ferric chloride.
Preferably, the catalyst consists of an active component and a carrier, wherein the active component can be one or more than one of transition metal oxides of scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper and zinc;
the mass of the active component accounts for 0.1-10% of the total mass of the catalyst, the carrier can be one or more than one of silicon oxide, aluminum oxide and active carbon, and the external shape of the carrier can be one or more than one of a sphere and a honeycomb.
Preferably, the ozone generation unit can comprise an oxygen generator, an ozone generator, a circulating water tank and an ozone conveying assembly, wherein the oxygen generator is connected with the ozone generator, the circulating water tank is connected with the ozone generator through a pipeline, and the ozone generator is connected with the micro-nano bubble generation unit through the ozone conveying assembly;
the micro-nano bubble generation unit is provided with a wastewater pipe conveying assembly to be treated, a micro-nano bubble generator and an air flow mixing assembly, the ozone catalytic oxidation reaction unit is provided with an ozone catalytic oxidation reactor, a reflux system, a water distribution assembly, an aeration assembly and a reactor arrangement control assembly, and the ozone destruction unit is provided with an ozone detection device assembly;
the ozone generator is connected with the micro-nano bubble generator through the ozone conveying assembly, the wastewater to be treated is connected with the air flow mixing assembly through the wastewater pipe conveying assembly at the tail to be treated, the micro-nano bubble generator is connected with the air flow mixing assembly, the air flow mixing assembly is laterally connected with the lower part of the ozone catalytic oxidation generator, the water distribution assembly and the aeration assembly are both installed on the ozone catalytic oxidation generator, one end of a backflow system is connected with the upper part of the ozone catalytic oxidation reactor, the other end of the backflow system is connected with the water distribution assembly, one end of the aeration assembly is connected with the micro-nano bubble generator, the other end of the aeration assembly is connected with the ozone catalytic oxidation generator, the reactor arrangement control assembly is installed on the upper part of the ozone catalytic oxidation reactor, and the ozone detection device assembly is connected with the top end of the upper part of the ozone catalytic oxidation reactor.
Preferably, the ozone conveying assembly is provided with a first check valve, a concentration detector, a first flowmeter, a first ball valve and a second ball valve, the ozone generator is connected with the micro-nano bubble generator through a conveying pipeline, the first check valve, the concentration detector, the first flowmeter and the first ball valve are sequentially arranged on the conveying pipeline between the ozone generator and the micro-nano bubble generator from front to back, the back of the first flowmeter is connected with the bottom of the ozone catalytic oxidation reactor through a branch pipeline, and the second ball valve is arranged on the branch pipeline between the first flowmeter and the ozone catalytic oxidation reactor;
the tail wastewater pipe conveying assembly to be treated comprises a water pump, a check valve II, a flow meter II, a ball valve III and an electromagnetic water treatment device, wastewater to be treated is conveyed to the electromagnetic water treatment device through a pipeline and the water pump, the check valve II, the flow meter II and the ball valve III are sequentially arranged on the pipeline between the water pump and the electromagnetic water treatment device from front to back, and the electromagnetic water treatment device is connected with the airflow mixing assembly;
preferably, the air current mixing assembly is provided with an air current mixing pump, an ejector and an electric valve, the micro-nano bubble generator is connected with the air receiving end of the air current mixing pump through a pipeline, an electromagnetic water treatment device in the waste water pipe conveying assembly to be treated at the tail is connected with the water inlet end of the air current mixing pump through a pipeline, the output water air end of the air current mixing pump is connected with the ejector through a pipeline, the ejector is connected with the electric valve through a pipeline, and the electric valve is laterally connected with the lower part of the ozone catalytic oxidation generator through a pipeline.
Preferably, the ozone catalytic oxidation reactor has three sections of areas, the ozone catalytic oxidation reactor sequentially comprises a first area, a second area and a third area from bottom to top, a first gas-liquid mixing area is arranged at the lower part of the first area, a first catalyst layer is arranged at the upper part of the first area, a second gas-liquid mixing area is arranged at the lower part of the second area, a second catalyst layer is arranged at the upper part of the second area, a third gas-liquid mixing area is arranged at the lower part of the third area, a third catalyst layer is arranged at the upper part of the third area, and the first area, the second area and the third area are communicated with each other;
the side of the first catalyst layer on the upper portion of the first area, the second catalyst layer on the upper portion of the second area and the third catalyst layer on the upper portion of the third area are provided with filling ports, the first catalyst layer on the upper portion of the first area, the second catalyst layer on the upper portion of the second area and the third catalyst layer on the upper portion of the third area are provided with supporting layer pieces, catalysts are added to the supporting layer pieces through the filling ports on the side faces of the three different areas respectively, the catalysts are integrally formed into a fluffy catalyst layer on the supporting layer pieces, and the filling ports are closed after the catalysts are added to the supporting layer pieces through the filling ports.
Preferably, the reflux system is provided with a reflux pipeline piece and a reflux pump, the water inlet end of the reflux pump is connected with the upper part of the ozone catalytic oxidation reactor through the reflux pipeline piece, and the water outlet end of the reflux pump is respectively connected with the water distribution component of the first area, the water distribution component of the second area and the water distribution component of the third area in the ozone catalytic oxidation reactor through the reflux pipeline piece;
the three water distribution assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor;
the three groups of aeration assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor;
the installation position of the aeration component in the first area in the ozone catalytic oxidation reactor is positioned below the installation position of the water distribution component in the first area;
the installation position of the aeration component in the second area in the ozone catalytic oxidation reactor is positioned below the installation position of the water distribution component in the second area;
the mounting position of the aeration component in the third area in the ozone catalytic oxidation reactor is positioned below the mounting position of the water distribution component in the third area;
and the aeration component in the first area, the aeration component in the second area and the aeration component in the third area in the ozone catalytic oxidation reactor are connected with the micro-nano bubble generator through gas transmission pipelines.
Preferably, the ozone detection device assembly comprises a pneumatic regulating valve, an ozone destructor and an ozone detector, the top end of the upper part of the ozone catalytic oxidation reactor is connected with the ozone destructor through a pipeline, the pneumatic regulating valve is installed on the pipeline between the top end of the upper part of the oxygen catalytic oxidation reactor and the ozone destructor, the rear end of the ozone destructor is connected with the ozone detector through a pipeline, and after the ozone detector detects that tail gas at the rear end is qualified, the tail gas is discharged through a pipeline at the tail end of the ozone detector;
the reactor arrangement control component comprises a third flow meter, a pressure meter, a liquid level meter, a manual exhaust valve, a safety valve and a respirator, wherein the liquid level meter is arranged at the upper part of the ozone catalytic oxidation reactor;
the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor is not on the same side with the connecting position of the backflow pipeline piece in the backflow system at the upper part of the ozone catalytic oxidation reactor, and the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor is higher than the connecting position of the water inlet end of the backflow pump in the backflow system and the backflow pipeline piece at the upper part of the ozone catalytic oxidation reactor;
the ozone catalytic oxidation reactor is averagely divided into three sections, the bottom of each section is provided with a gas-liquid mixing area and a catalyst layer, and the bottom of each gas-liquid mixing area is provided with a reflux liquid feeding water distribution assembly and an aeration assembly;
the wastewater to be treated passes through a water pump of a wastewater pipe conveying assembly to be treated at the tail, then sequentially passes through a check valve II, a flow meter II and a ball valve III in the wastewater pipe conveying assembly to be treated at the tail, passes through an electromagnetic water treatment device, enters a water inlet end of an air flow mixing pump, oxygen passes through an oxygen generator, and is made into ozone through an ozone generator, the ozone sequentially passes through a check valve I, a concentration detector, a flow meter I and a ball valve I in the ozone conveying assembly to a micro-nano bubble generator, the ozone passes through the micro-nano bubble generator and enters a gas receiving end of the air flow mixing pump, the wastewater to be treated and the ozone after passing through the micro-nano bubble generator are fully mixed through the air flow mixing pump, enter a first gas-liquid mixing area in a first area at the lower part of the ozone catalytic oxidation generator through a jet device and an electric valve, and are uniformly distributed through a water distribution assembly in the first area in the ozone catalytic oxidation reactor, meanwhile, part of ozone is aerated through an aeration component in a first area of the ozone catalytic oxidation reactor and then rises to a first catalyst layer, then a gas-water mixture sequentially passes through a second gas-liquid mixing area and a second catalyst layer in a second area, a third gas-liquid mixing area and a third catalyst layer in a third area from bottom to top and enters the upper part of the ozone catalytic oxidation reactor, a reflux pump in a reflux system respectively and circularly feeds a water body on the upper part of the ozone catalytic oxidation reactor into a water distribution component in the first area, a water distribution component in the second area and a water distribution component in the third area in the ozone catalytic oxidation reactor through reflux pipeline pieces, and then the water body on the upper part of the ozone catalytic oxidation reactor is circularly fed into the first gas-liquid mixing area, the second gas-liquid mixing area and the third gas-liquid mixing area, so that a circulation is formed.
Compared with the prior art, the invention has the following beneficial effects:
the ozone catalytic oxidation reaction device system is manufactured by optimally designing and combining the ozone generating unit, the micro-nano bubble generating unit, the ozone catalytic oxidation reaction unit, the medicament adding unit and the ozone destroying unit. The defects of short three-phase contact time of a catalyst, wastewater to be treated and ozone, low ozone utilization rate, low treatment efficiency, high energy consumption and long reaction time of the existing ozone catalytic oxidation reactor in practical use are overcome.
Meanwhile, the device system of the invention has the advantages of small overall occupied area, simple process, low energy consumption, short hydraulic retention time and high ozone utilization rate, can reduce the total adding amount of ozone and the total number of ozone catalytic oxidation reactors, has good treatment effect, and is suitable for being popularized and used as a deep purification COD upgrading device system in the treatment of wastewater to be treated.
Drawings
FIG. 1 is a schematic diagram of the overall operation of an ozone catalytic oxidation reaction apparatus system according to the present invention;
FIG. 2 is a schematic view of the whole mixed flow of wastewater to be treated and ozone in the catalytic ozonation reactor system of the present invention;
FIG. 3 is a schematic view of the flow of ozone in the catalytic ozonation reactor system of the present invention;
FIG. 4 is a schematic flow diagram of the wastewater to be treated in the catalytic ozonation reactor system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and specific embodiments.
Referring to the attached drawings, the ozone catalytic oxidation reaction device system is characterized by comprising an ozone generating unit, a micro-nano bubble generating unit, an ozone catalytic oxidation reaction unit, a medicament adding unit and an ozone destroying unit, wherein ozone generated by the ozone generating unit generates micro-nano bubbles through the micro-nano bubble generating unit, the micro-nano bubbles are dissolved and mixed with wastewater to be treated and then enter the ozone catalytic oxidation reaction unit, the micro-nano bubbles and the wastewater to be treated react in the ozone catalytic oxidation reaction unit, treated water is discharged from the ozone catalytic oxidation reaction unit, treated residual gas enters the ozone destroying unit from the ozone catalytic oxidation reaction unit and is discharged outwards after being treated by the ozone destroying unit, and the medicament adding unit can be connected with one of the micro-nano bubble generating unit, the ozone catalytic oxidation reaction unit and the ozone destroying unit to add medicaments, the medicament is thrown with two unit connection of unit in can with micro-nano bubble generation unit, ozone catalytic oxidation reaction unit, the three unit of ozone destruction unit and is thrown the medicament, the medicament is thrown with three unit connection in the unit can generate unit, ozone catalytic oxidation reaction unit, the three unit of ozone destruction unit and is all connected and throw the medicament, ozone catalytic oxidation reaction unit has ozone catalytic oxidation reactor C, circulating pump subassembly, circulation pipeline subassembly, has the circulation to import and export on the ozone catalytic oxidation reactor C, and the circulation pipeline subassembly is imported and exported with circulation pump subassembly series connection on the ozone catalytic oxidation reactor C, ozone catalytic oxidation reactor C is last to remain to handle waste water and imports and exports, ozone catalytic oxidation reactor C can be connected with the waste water that treats through the circulation pipeline subassembly, the circulation flux of circulation pipeline subassembly can be for the waste water treatment volume of treating in the ozone catalytic oxidation reaction unit 1 to 300 times of the total amount of the active ingredient.
Preferably, the ozone generating unit can adopt one or more than one of an air source and an oxygen source to produce ozone;
the micro-nano bubble generating unit can be one or more than one combination of a gas-liquid mixing pump, a micro-nano aeration head and an ejector;
the ozone catalytic oxidation reactor C is provided with a shell and a catalyst, the catalyst is arranged in the shell, the shell can be made of metal or nonmetal materials, and the shell can be made of metal and nonmetal composite materials;
the medicament added by the medicament adding unit can be one or more than one of hydrogen peroxide, sodium sulfite, sodium thiosulfate, potassium iodide, sodium hypochlorite, polyacrylamide, aluminum chloride and ferric chloride.
Preferably, the catalyst consists of an active component and a carrier, wherein the active component can be one or more than one of transition metal oxides of scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper and zinc;
the mass of the active component accounts for 0.1-10% of the total mass of the catalyst, the carrier can be one or more than one of silicon oxide, aluminum oxide and active carbon, and the external shape of the carrier can be one or more than one of a sphere and a honeycomb.
Preferably, the ozone generation unit can comprise an oxygen generator 1, an ozone generator 2, a circulating water tank 3 and an ozone conveying assembly, wherein the oxygen generator 1 is connected with the ozone generator 2, the circulating water tank 3 is connected with the ozone generator 2 through a pipeline, and the ozone generator 2 is connected with the micro-nano bubble generation unit through the ozone conveying assembly;
the micro-nano bubble generation unit is provided with a wastewater pipe conveying assembly to be treated, a micro-nano bubble generator 12 and an air flow mixing assembly, the ozone catalytic oxidation reaction unit is provided with an ozone catalytic oxidation reactor C, a reflux system, a water distribution assembly, an aeration assembly and a reactor arrangement control assembly, and the ozone destruction unit is provided with an ozone detection device assembly;
Preferably, the ozone conveying assembly is provided with a first check valve 4, a concentration detector 5, a first flow meter 6, a first ball valve 7 and a second ball valve 8, the ozone generator 2 is connected with the micro-nano bubble generator 12 through a conveying pipeline, the first check valve 4, the concentration detector 5, the first flow meter 6 and the first ball valve 7 are sequentially arranged on the conveying pipeline between the ozone generator 2 and the micro-nano bubble generator 12 from front to back, the back of the first flow meter 6 is connected with the bottom of the ozone catalytic oxidation reactor C through a branch pipeline, and the second ball valve 8 is arranged on the branch pipeline between the first flow meter 6 and the ozone catalytic oxidation reactor C;
the waste water pipe transmission assembly for tail treatment comprises a water pump 17, a second check valve 16, a second flow meter 15, a third ball valve 14 and an electromagnetic water treatment device 13, waste water to be treated is transmitted to the electromagnetic water treatment device 13 through a pipeline and the water pump 17, the second check valve 16, the second flow meter 15 and the third ball valve 14 are sequentially arranged on the pipeline between the water pump 17 and the electromagnetic water treatment device 13 from front to back, and the electromagnetic water treatment device 13 is connected with an airflow mixing assembly.
Preferably, the air mixing component is provided with an air mixing pump 11, an ejector 10 and an electric valve 32, the micro-nano bubble generator 12 is connected with the air receiving end of the air mixing pump 11 through a pipeline, an electromagnetic water treatment device 13 in the waste water pipe conveying component to be treated at the tail is connected with the water inlet end of the air mixing pump 11 through a pipeline, the water outlet end of the air mixing pump 11 is connected with the ejector 10 through a pipeline, the ejector 10 is connected with the electric valve 32 through a pipeline, and the electric valve 32 is laterally connected with the lower part of the ozone catalytic oxidation generator C through a pipeline.
Preferably, the ozone catalytic oxidation reactor C has three sections, the ozone catalytic oxidation reactor C sequentially includes, from bottom to top, a first section, a second section and a third section, the first section has a first gas-liquid mixing section C1 at the lower part thereof, the first section has a first catalyst layer C2 at the upper part thereof, the second section has a second gas-liquid mixing section C3 at the lower part thereof, the second section has a second catalyst layer C4 at the upper part thereof, the third section has a third gas-liquid mixing section C5 at the lower part thereof, the third section has a third catalyst layer C6 at the upper part thereof, and the first section, the second section and the third section are communicated with each other;
the side surfaces of the first region upper first catalyst layer C2, the second region upper second catalyst layer C4 and the third region upper third catalyst layer C6 are provided with filling ports, the insides of the first region upper first catalyst layer C2, the second region upper second catalyst layer C4 and the third region upper third catalyst layer C6 are provided with supporting layer pieces, catalysts are respectively added onto the supporting layer pieces through the filling ports on the side surfaces of three different regions, the catalysts are integrally formed into fluffy catalyst layers on the supporting layer pieces, and the filling ports are closed after the catalysts are added onto the supporting layer pieces through the filling ports.
Preferably, the backflow system is provided with a backflow pipeline piece and a backflow pump 23, the water inlet end of the backflow pump 23 is connected with the upper part of the ozone catalytic oxidation reactor C through the backflow pipeline piece, and the water outlet end of the backflow pump 23 is respectively connected with the water distribution component 18 in the first area, the water distribution component 20 in the second area and the water distribution component 22 in the third area of the ozone catalytic oxidation reactor C through the backflow pipeline piece;
the three water distribution assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor C;
the three groups of aeration assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor C;
the installation position of the aeration component 9 in the first area in the ozone catalytic oxidation reactor C is positioned below the installation position of the water distribution component 18 in the first area;
the installation position of the aeration component 19 in the second area in the ozone catalytic oxidation reactor C is positioned below the installation position of the water distribution component 20 in the second area;
the mounting position of the aeration component 21 in the third region of the ozone catalytic oxidation reactor C is positioned below the mounting position of the water distribution component 22 in the third region;
the aeration component 9 in the first area, the aeration component 19 in the second area and the aeration component 21 in the third area in the ozone catalytic oxidation reactor C are all connected with the micro-nano bubble generator 12 through gas transmission pipelines.
Preferably, the ozone detection device assembly comprises a pneumatic regulating valve 29, an ozone destructor 30 and an ozone detector 31, the top end of the upper part of the ozone catalytic oxidation reactor C is connected with the ozone destructor 30 through a pipeline, the pneumatic regulating valve 29 is installed on the pipeline between the top end of the upper part of the oxygen catalytic oxidation reactor C and the ozone destructor 30, the rear end of the ozone destructor 30 is connected with the ozone detector 31 through a pipeline, and after the ozone detector 31 detects that tail gas at the rear end is qualified, the tail gas is discharged through the pipeline at the tail end of the ozone detector 31;
the reactor arrangement control component comprises a third flow meter 28, a pressure gauge, a liquid level meter 25, a manual exhaust valve 24, a safety valve 27 and a breather 26, wherein the liquid level meter 25 is installed at the upper part of the ozone catalytic oxidation reactor C, the installation position of the liquid level meter 25 on the ozone catalytic oxidation reactor C is higher than the position of the connection of the water inlet end of the reflux pump 23 in the reflux system and the reflux pipeline piece at the upper part of the ozone catalytic oxidation reactor C, the top end of the upper part of the ozone catalytic oxidation reactor C is provided with a water outlet pipeline, the third flow meter 28 is installed above the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor C, and the pressure gauge, the manual exhaust valve 24, the safety valve 27 and the breather 26 are all fixedly installed in the vicinity area of the top end of the upper part of the ozone catalytic oxidation reactor C;
the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor C is not on the same side with the connecting position of the return pipeline piece in the return system at the upper part of the ozone catalytic oxidation reactor C, and the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor C is higher than the height from the bottom of the ozone catalytic oxidation reactor C to the connecting position of the water inlet end of the return pump 23 in the return system and the return pipeline piece at the upper part of the ozone catalytic oxidation reactor C;
the ozone catalytic oxidation reactor C is averagely divided into three sections, the bottom of each section is provided with a gas-liquid mixing area and a catalyst layer, and the bottom of each gas-liquid mixing area is provided with a reflux liquid feeding water distribution assembly and an aeration assembly;
the wastewater to be treated passes through a water pump 17 of a wastewater pipe conveying assembly to be treated at the tail, then sequentially passes through a check valve II 16, a flow meter II 15 and a ball valve III 14 in the wastewater pipe conveying assembly to be treated at the tail, passes through an electromagnetic water treatment device 13, enters the water inlet end of an air flow mixing pump 11, oxygen passes through an oxygen generator 1, and is made into ozone through an ozone generator 2, the ozone sequentially passes through a check valve I4, a concentration detector 5, a flow meter I6 and a ball valve I7 in the ozone conveying assembly to reach a micro-nano bubble generator 12, the ozone passes through the micro-nano bubble generator 12 and enters the gas receiving end of the air flow mixing pump 11, the wastewater to be treated and the ozone passing through the micro-nano bubble generator 12 are fully mixed through the air flow mixing pump 11 and then enter a first gas-liquid mixing area C1 in a first area at the lower part of the ozone catalytic oxidation generator C through an ejector 10 and an electric valve 32, water is uniformly distributed by the water distribution component 18 in the first area of the ozone catalytic oxidation reactor C, part of ozone is aerated by the aeration component 9 in the first area of the ozone catalytic oxidation reactor C, and then rises to the first catalyst layer C2, then the gas-water mixture sequentially passes through the second gas-liquid mixing area C3 and the second catalyst layer C4 in the second area, the third gas-liquid mixing area C5 and the third catalyst layer C6 in the third area from bottom to top and enters the upper part of the ozone catalytic oxidation reactor C, the reflux pump 23 in the reflux system respectively and circularly feeds the water body on the upper part of the ozone catalytic oxidation reactor C to the water distribution component 18 in the first area, the water distribution component 20 in the second area and the water distribution component 22 in the third area of the ozone catalytic oxidation reactor C through reflux pipeline pieces, and then circularly feeds the water body on the upper part of the ozone catalytic oxidation reactor C to the first gas-liquid mixing area C1, A second gas-liquid mixing zone C3 and a third gas-liquid mixing zone C5, thereby forming a cycle.
After the water in the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor C in the device system is qualified after detection, the water at the upper part of the ozone catalytic oxidation reactor C can be discharged through the water outlet pipeline; the gas inside the ozone catalytic oxidation reactor C is treated by the ozone destructor 30 at the top end of the upper part of the ozone catalytic oxidation reactor C, and is discharged through a pipeline at the tail end of the ozone detector 31 after being detected to be qualified by the ozone detector 31.
The micro-nano bubble generator 12 is an important component of the system, ozone generated by the ozone generator 2 and external wastewater to be treated which passes through the water pump 17 are added into the ozone catalytic oxidation reactor C through micro-nano ozone bubbles generated by the micro-nano bubble generator 12. The micro-nano ozone bubbles have the advantages of large specific surface area, slow rising speed, charged surface, high gas solubility and capability of generating a large amount of hydroxyl radicals. The micro-nano bubble generator 12 is put into the ozone catalytic oxidation reactor C, so that ozone can be fully utilized, and the ozone catalytic oxidation reactor has an important effect on improving the reaction speed of the reactor.
The reactor C of the ozone catalytic oxidation reactor is integrally of a cylindrical structure, the interior of the reactor C is uniformly divided into three areas from bottom to top, each area comprises a gas-liquid mixing area and a catalyst layer, the bottom of each gas-liquid mixing area comprises a water distribution assembly and an aeration assembly, the water distribution assembly can uniformly mix and distribute water including original inlet water and return liquid of an upper water outlet section of the ozone catalytic oxidation reactor C into the oxygen catalytic oxidation reactor C, the design of the section in the invention can effectively ensure high utilization rate of ozone, and can prevent the occurrence of phenomena of hardening, short flow and the like of the catalyst layer in the oxygen catalytic oxidation reactor C; the water inlet flow and the reflux quantity in each section of gas-liquid mixing area in the oxygen catalytic oxidation reactor C can be adjusted through different electric valves in each area; the oxygen catalytic oxidation reactor C is provided with a pressure gauge, a manual exhaust valve 24, a safety valve 27, a breather 26 and a liquid level meter 25, and meanwhile, a catalyst filling port is arranged at a catalyst layer in each area so as to facilitate the supplement and replacement of the catalyst.
The invention optimally designs and combines the ozone generating unit, the micro-nano bubble generating unit, the ozone catalytic oxidation reaction unit, the medicament adding unit and the ozone destroying unit, overcomes the defects of short three-phase contact time of a catalyst, wastewater to be treated and ozone, low ozone utilization rate, low treatment efficiency, high energy consumption and long reaction time of the existing ozone catalytic oxidation reactor in actual use, has small overall occupied area, simple process, low energy consumption, short hydraulic retention time and high ozone utilization rate, can reduce the total adding amount of ozone and the total number of the ozone catalytic oxidation reactor, has good treatment effect, and is suitable for being popularized and used as a deep purification COD upgrading device system in the treatment of the wastewater to be treated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The utility model provides an ozone catalytic oxidation reaction device system, its characterized in that includes ozone generating unit, micro-nano bubble generating unit, ozone catalytic oxidation reaction unit, the medicament throws the unit, ozone destruction unit, ozone that ozone generating unit produced passes through micro-nano bubble generating unit and generates micro-nano bubble, micro-nano bubble enters into ozone catalytic oxidation reaction unit after dissolving the mixture with the waste water of treating, micro-nano bubble and the waste water of treating after the reaction in ozone catalytic oxidation reaction unit, the water after the processing is discharged from ozone catalytic oxidation reaction unit, the surplus gas after the processing gets into ozone destruction unit from ozone catalytic oxidation reaction unit, outwards discharge after ozone destruction unit handles, the medicament throws the unit and can throw the medicament with one unit connection in micro-nano bubble generating unit, ozone catalytic oxidation reaction unit, ozone destruction unit three units, the agent is thrown with two unit connection of unit can with micro-nano bubble generation unit, ozone catalytic oxidation reaction unit, in the three unit of ozone destruction unit and is thrown the agent, the agent is thrown with three unit connection in the unit can all be connected with micro-nano bubble generation unit, ozone catalytic oxidation reaction unit, the ozone destroys the three unit and is thrown the agent, ozone catalytic oxidation reaction unit has ozone catalytic oxidation reactor, circulating pump subassembly, circulation pipeline subassembly, has the circulation to import and export on the ozone catalytic oxidation reactor, and circulation pipeline subassembly is imported and exported with circulating pump subassembly series connection on the ozone catalytic oxidation reactor, remain to handle waste water import and export on the ozone catalytic oxidation reactor, ozone catalytic oxidation reactor can be connected with the waste water of treating through the circulation pipeline subassembly, the circulation volume of circulation pipeline subassembly can be 1 ~ 300 times of the waste water treatment volume of treating to handle in the ozone catalytic oxidation reaction unit .
2. The catalytic ozonation reactor system of claim 1, wherein the ozone generating unit is capable of generating ozone using one or a combination of more than one of an air source, an oxygen source;
the micro-nano bubble generating unit can be one or more than one combination of a gas-liquid mixing pump, a micro-nano aeration head and an ejector;
the ozone catalytic oxidation reactor is provided with a shell and a catalyst, wherein the catalyst is arranged in the shell, the shell can be made of metal or nonmetal materials, and the shell can be made of metal and nonmetal composite materials.
3. The catalytic ozonation reactor system of claim 2, wherein the catalyst comprises an active component and a support, and the support has an external shape selected from the group consisting of a sphere, a honeycomb, and a combination thereof.
4. The catalytic ozonation reaction device system of claim 1, wherein the ozone generation unit comprises an oxygen generator, an ozone generator, a circulating water tank and an ozone conveying assembly, the oxygen generator is connected with the ozone generator, the circulating water tank is connected with the ozone generator through a pipeline, and the ozone generator is connected with the micro-nano bubble generation unit through the ozone conveying assembly;
the micro-nano bubble generation unit is provided with a wastewater pipe conveying assembly to be treated, a micro-nano bubble generator and an air flow mixing assembly, the ozone catalytic oxidation reaction unit is provided with an ozone catalytic oxidation reactor, a reflux system, a water distribution assembly, an aeration assembly and a reactor arrangement control assembly, and the ozone destruction unit is provided with an ozone detection device assembly;
the ozone generator is connected with the micro-nano bubble generator through the ozone conveying assembly, the wastewater to be treated is connected with the air flow mixing assembly through the wastewater pipe conveying assembly at the tail to be treated, the micro-nano bubble generator is connected with the air flow mixing assembly, the air flow mixing assembly is laterally connected with the lower part of the ozone catalytic oxidation generator, the water distribution assembly and the aeration assembly are both installed on the ozone catalytic oxidation generator, one end of a backflow system is connected with the upper part of the ozone catalytic oxidation reactor, the other end of the backflow system is connected with the water distribution assembly, one end of the aeration assembly is connected with the micro-nano bubble generator, the other end of the aeration assembly is connected with the ozone catalytic oxidation generator, the reactor arrangement control assembly is installed on the upper part of the ozone catalytic oxidation reactor, and the ozone detection device assembly is connected with the top end of the upper part of the ozone catalytic oxidation reactor.
5. The catalytic ozonation reaction device system according to claim 4, wherein the ozone conveying assembly comprises a first check valve, a concentration detector, a first flowmeter, a first ball valve and a second ball valve, the ozone generator is connected with the micro-nano bubble generator through a conveying pipeline, the first check valve, the concentration detector, the first flowmeter and the first ball valve are sequentially arranged on the conveying pipeline between the ozone generator and the micro-nano bubble generator from front to back, the back of the first flowmeter is connected with the bottom of the catalytic ozonation reactor through a branch pipeline, and the second ball valve is arranged on the branch pipeline between the first flowmeter and the catalytic ozonation reactor;
the tail wastewater pipe conveying assembly to be treated comprises a water pump, a second check valve, a second flow meter, a third ball valve and an electromagnetic water treatment device, wastewater to be treated is conveyed to the electromagnetic water treatment device through a pipeline and the water pump, the second check valve, the second flow meter and the third ball valve are sequentially arranged on the pipeline between the water pump and the electromagnetic water treatment device from front to back, and the electromagnetic water treatment device is connected with the airflow mixing assembly.
6. The catalytic ozonation reactor system of claim 4, wherein the air mixing assembly comprises an air mixing pump, an ejector and an electric valve, the micro-nano bubble generator is connected with the air receiving end of the air mixing pump through a pipeline, the electromagnetic water treatment device in the wastewater pipe conveying assembly to be treated is connected with the water inlet end of the air mixing pump through a pipeline, the output water and air end of the air mixing pump is connected with the ejector through a pipeline, the ejector is connected with the electric valve through a pipeline, and the electric valve is laterally connected with the lower part of the catalytic ozonation generator through a pipeline.
7. The catalytic ozonation reactor system according to any one of claims 1 to 6, wherein the catalytic ozonation reactor has three sections, and the catalytic ozonation reactor sequentially includes, from bottom to top, a first section, a second section, and a third section, wherein a first gas-liquid mixing section is provided at a lower portion of the first section, a first catalyst layer is provided at an upper portion of the first section, a second gas-liquid mixing section is provided at a lower portion of the second section, a second catalyst layer is provided at an upper portion of the second section, a third gas-liquid mixing section is provided at a lower portion of the third section, a third catalyst layer is provided at an upper portion of the third section, and the first section, the second section, and the third section are communicated with each other;
the side of the first catalyst layer on the upper portion of the first area, the second catalyst layer on the upper portion of the second area and the third catalyst layer on the upper portion of the third area are provided with filling ports, the first catalyst layer on the upper portion of the first area, the second catalyst layer on the upper portion of the second area and the third catalyst layer on the upper portion of the third area are provided with supporting layer pieces, catalysts are added to the supporting layer pieces through the filling ports on the side faces of the three different areas respectively, the catalysts are integrally formed into a fluffy catalyst layer on the supporting layer pieces, and the filling ports are closed after the catalysts are added to the supporting layer pieces through the filling ports.
8. The catalytic ozonation reaction device system according to claim 4, wherein the reflux system comprises a reflux pipeline member and a reflux pump, a water inlet end of the reflux pump is connected with the upper part of the catalytic ozonation reactor through the reflux pipeline member, and a water outlet end of the reflux pump is respectively connected with the water distribution assembly in the first area, the water distribution assembly in the second area and the water distribution assembly in the third area in the catalytic ozonation reactor through the reflux pipeline member;
the three water distribution assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor;
the three groups of aeration assemblies are respectively arranged on the side surface of the first area, the side surface of the second area and the side surface of the third area in the ozone catalytic oxidation reactor;
the installation position of the aeration component in the first area in the ozone catalytic oxidation reactor is positioned below the installation position of the water distribution component in the first area;
the installation position of the aeration component in the second area in the ozone catalytic oxidation reactor is positioned below the installation position of the water distribution component in the second area;
the mounting position of the aeration component in the third area in the ozone catalytic oxidation reactor is positioned below the mounting position of the water distribution component in the third area;
and the aeration component in the first area, the aeration component in the second area and the aeration component in the third area in the ozone catalytic oxidation reactor are connected with the micro-nano bubble generator through gas transmission pipelines.
9. The catalytic ozonation reaction device system of claim 4, wherein the ozone detection device assembly comprises a pneumatic control valve, an ozone destructor and an ozone detector, the top end of the upper part of the catalytic ozonation reactor is connected with the ozone destructor through a pipeline, the pneumatic control valve is installed on the pipeline between the top end of the upper part of the catalytic ozonation reactor and the ozone destructor, the rear end of the ozone destructor is connected with the ozone detector through a pipeline, and after the ozone detector detects that tail gas at the rear end is qualified, the tail gas is discharged through the pipeline at the tail end of the ozone detector;
the reactor arrangement control component comprises a third flow meter, a pressure meter, a liquid level meter, a manual exhaust valve, a safety valve and a respirator, wherein the liquid level meter is arranged at the upper part of the ozone catalytic oxidation reactor;
the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor is not on the same side with the connecting position of the backflow pipeline piece in the backflow system at the upper part of the ozone catalytic oxidation reactor, and the mounting position of the water outlet pipeline at the top end of the upper part of the ozone catalytic oxidation reactor is higher than the connecting position of the water inlet end of the backflow pump in the backflow system and the backflow pipeline piece at the upper part of the ozone catalytic oxidation reactor;
the ozone catalytic oxidation reactor is averagely divided into three sections, the bottom of each section is provided with a gas-liquid mixing area and a catalyst layer, and the bottom of each gas-liquid mixing area is provided with a reflux liquid feeding water distribution assembly and an aeration assembly;
the wastewater to be treated passes through a water pump of a wastewater pipe conveying assembly to be treated at the tail, then sequentially passes through a check valve II, a flow meter II and a ball valve III in the wastewater pipe conveying assembly to be treated at the tail, passes through an electromagnetic water treatment device, enters a water inlet end of an air flow mixing pump, oxygen passes through an oxygen generator, and is made into ozone through an ozone generator, the ozone sequentially passes through a check valve I, a concentration detector, a flow meter I and a ball valve I in the ozone conveying assembly to a micro-nano bubble generator, the ozone passes through the micro-nano bubble generator and enters a gas receiving end of the air flow mixing pump, the wastewater to be treated and the ozone after passing through the micro-nano bubble generator are fully mixed through the air flow mixing pump, enter a first gas-liquid mixing area in a first area at the lower part of the ozone catalytic oxidation generator through a jet device and an electric valve, and are uniformly distributed through a water distribution assembly in the first area in the ozone catalytic oxidation reactor, meanwhile, part of ozone is aerated through an aeration component in a first area of the ozone catalytic oxidation reactor and then rises to a first catalyst layer, then a gas-water mixture sequentially passes through a second gas-liquid mixing area and a second catalyst layer in a second area, a third gas-liquid mixing area and a third catalyst layer in a third area from bottom to top and enters the upper part of the ozone catalytic oxidation reactor, a reflux pump in a reflux system respectively and circularly feeds a water body on the upper part of the ozone catalytic oxidation reactor into a water distribution component in the first area, a water distribution component in the second area and a water distribution component in the third area in the ozone catalytic oxidation reactor through reflux pipeline pieces, and then the water body on the upper part of the ozone catalytic oxidation reactor is circularly fed into the first gas-liquid mixing area, the second gas-liquid mixing area and the third gas-liquid mixing area, so that a circulation is formed.
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