CN210085058U - Novel three-phase ozone catalytic vulcanization tower - Google Patents
Novel three-phase ozone catalytic vulcanization tower Download PDFInfo
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- CN210085058U CN210085058U CN201920455888.6U CN201920455888U CN210085058U CN 210085058 U CN210085058 U CN 210085058U CN 201920455888 U CN201920455888 U CN 201920455888U CN 210085058 U CN210085058 U CN 210085058U
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Abstract
The utility model provides a novel three-phase ozone catalytic vulcanization tower, it includes the tower body to and set up inlet tube and the outlet pipe of upper end at the tower body lower extreme, its characterized in that be equipped with pipe-line mixer, pressure boost backwash pump and efflux aerator on the inlet tube in proper order, the inlet tube is connected with the water distribution gas distribution person in charge of tower body bottom water distribution gas distribution district one end to violently insert evenly distributed's water distribution gas distribution branch pipe in the water distribution gas distribution person in charge, the other end is equipped with the evacuation mouth, bottom water distribution gas distribution district upper strata is equipped with the cobblestone layer, and is equipped with the short handle filter head that is linked together with water distribution gas distribution district in cobblestone layer bottom, this novel three-phase ozone catalytic fluidization tower is a high-tech multidisciplinary combined process form, and no secondary pollution has solved the difficult problem of administering of the organic matter waste water that contains.
Description
Technical Field
The invention relates to a wastewater treatment device, in particular to a novel three-phase ozone catalytic fluidized tower which is mainly used for adsorbing and decomposing refractory organic matters in water, is applied to the field of advanced wastewater treatment in industries such as printing and dyeing, papermaking, electroplating, chemical engineering and the like, and can also be applied to the pre-stage pretreatment process of a reverse osmosis and ion exchange softening desalting system in water supply treatment.
Background
At present, most industrial wastewater discharge still contains a certain amount of COD, the biochemical capacity of the organic substances contributing to the COD is poor, and the amount of the COD exceeds the emission limit value permitted by the new standard. At the present stage, a very efficient process method for treating low-concentration refractory organic matters does not exist in the field of wastewater treatment, and an activated carbon adsorption method, a chemical oxidation method, an ozone oxidation method and the like are commonly used.
The activated carbon adsorption method has simple operation, quick effect and low equipment investment; however, the activated carbon needs to be replaced regularly, the labor intensity is high, and the operation cost is high (the adsorption capacity is about 0.08 kgCOD/kg). In addition, in the regeneration method of the activated carbon, the recovery rate is highest by using the traditional high-temperature activation method, and the effects of other normal-temperature or low-temperature methods are not ideal, so that the method is a great obstacle for restricting the application of the activated carbon adsorption process.
The chemical oxidation method has the advantages of thorough removal, mineralization of organic matters and improvement of biodegradability of effluent; the disadvantages are that the process control is complex, the requirement on equipment material is high, the sludge production is large, and a sedimentation tank needs to be configured subsequently.
The ozone oxidation method has the advantages of good decolorization effect, high automation degree of system equipment and no sludge; the disadvantages are high energy consumption of the system and large investment. In a pure ozone oxidation process, the traditional method is applied in the form of empty tower jet mixing or a bubble tower, the ozone utilization rate is low, and the method is mostly applied in an ozone sterilization and disinfection process and is not suitable for being applied in a process for degrading organic matters.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: by catalytic reaction of ozoneReasonable design of reactor structure, optimization of aeration mode, optimization of carrier material structure (grain diameter, density, porous characteristic, surface shape, mechanical strength and organophilic molecular property), optimization control of operation parameters, etc. to reduce fluidization power, save investment and make organic matrix-oxide radical (∙ O)2 -+HO2∙ + ∙ OH), uniform contact, more contacts, high mass transfer speed, thorough decomposition and good treatment effect.
The technical scheme adopted by the invention is as follows: a novel three-phase ozone catalytic vulcanizing tower, which comprises a tower body, a water inlet pipe arranged at the lower end of the tower body and a water outlet pipe arranged at the upper end of the tower body, the water inlet pipe is sequentially provided with a pipeline mixer, a pressure-boosting reflux pump and a jet aerator, the water inlet pipe is connected with a water and gas distribution main pipe at one end of a water and gas distribution area at the bottom of the tower body, the water and gas distribution branch pipes are transversely inserted into the water and gas distribution main pipe and are uniformly distributed, the other end of the water and gas distribution main pipe is provided with a drain port, the upper layer of the water and gas distribution area at the bottom is provided with a cobble layer, a short-handle filter head communicated with the water and gas distribution area is arranged at the bottom of the cobblestone layer, an active catalytic carrier chamber is arranged on the cobblestone layer, an active catalytic carrier is arranged in the active catalytic carrier chamber, the upper layer of the active catalytic carrier chamber is provided with a clear liquid area, the upper layer of the clear liquid area is provided with a water outlet weir groove, the water outlet weir groove is connected with a water outlet pipe, and the water outlet pipe is provided with a water outlet regulating valve.
Preferably, the method comprises the following steps: one side in clear liquid district is equipped with the backward flow hole, the backward flow hole connection back flow links to each other with the inlet tube of bottom to set up the backward flow governing valve of a control discharge on the back flow, form a hydrologic cycle between back flow, inlet tube and the tower body.
Preferably, the method comprises the following steps: an observation sight glass is arranged at the position of the active catalytic carrier chamber at one outer side of the tower body, and the active catalytic carrier chamber and the clear liquid zone at the other outer side are respectively provided with a man-in hole through which a person can enter the chamber to replace the active catalytic carrier or clean the clear liquid zone.
Preferably, the method comprises the following steps: the pipeline mixer consists of a water inlet, a water outlet, a mixing cavity and a dosing port, wherein the dosing port is positioned at the top of a pipeline 5CM away from the water inlet and is provided with a sealing cover plate.
Preferably, the method comprises the following steps: the jet aerator is characterized in that a jet water inlet is formed in one end of the jet aerator and connected to a mixing cavity, a flow guide turbine is arranged in the mixing cavity, a total air suction port is formed in the top of the mixing cavity, and a diffusion chamber is formed in the other end of the jet aerator.
The invention, through the structure optimization and reasonable design, leads the gas-solid-liquid three-phase mixed liquid to be mixed violently in the active catalytic carrier area of the tower body, and the gas-solid-liquid three-phase mixed liquid is relatively detained in the circulating reflux outer tube for contact reaction, and is continuously circulated and relatively flowed between the two areas, thereby leading the phase interface and the active contact point to be continuously updated and fully contacted, and sequentially promoting the reaction process. Meanwhile, the jet aeration and water and gas distribution system standardizes the motion of gas-liquid-solid three phases to approximate UP-CSTR and DOWN-PF flow patterns, and has small flow resistance, easy initial fluidization and low energy consumption.
In the device, the gas-liquid-solid mixing in the upflow zone is very violent, and a large amount of liquid continuously and circularly flows in the upflow zone and the reflux zone, so that the device has great dilution and diffusion capacity and strong impact load resistance capacity.
The novel three-phase ozone catalytic fluidized tower is a high-tech multidisciplinary combined process form, has no secondary pollution, and effectively solves the problem of treatment of waste water containing refractory organic matters.
Drawings
Fig. 1 is a schematic front sectional view of the structure of the present invention.
FIG. 2 is a cross-sectional view taken along line A-A of the present invention
Fig. 3 is a schematic sectional view of the structure of the jet aerator of the invention.
FIG. 4 is a schematic sectional view of the structure of the line mixer of the present invention.
Figure 5 is a process flow diagram of the inventive structure.
Detailed Description
Referring now to the drawings, the technical contents of the present invention will be further described with reference to fig. 1-3, which shows a novel three-phase ozone catalytic vulcanizing tower, comprising a tower 23, a water inlet pipe 15 arranged at the lower end of the tower 23 and a water outlet pipe 11 arranged at the upper end of the tower, wherein the water inlet pipe 15 is sequentially provided with a pipeline mixer 16, a pressure-increasing reflux pump 17 and a jet aerator 18, the water inlet pipe 15 is connected with a water and gas distribution main pipe 24 at one end of a water and gas distribution area 22 at the bottom of the tower 23, water and gas distribution branch pipes 25 are transversely inserted into the water and gas distribution main pipe 24 and are uniformly distributed, the other end is provided with an evacuation port 1, a cobble layer 3 is arranged on the upper layer of the water and gas distribution area 22 at the bottom of the cobble layer 3, a short-handle filter head 2 communicated with the water and gas distribution area 22 is arranged at the bottom of the cobble layer 3, an active catalytic carrier, a clear liquid area 20 is arranged on the upper layer of the active catalytic carrier chamber 26, a water outlet weir groove 8 is arranged on the upper layer of the clear liquid area 20, the water outlet weir groove 8 is connected with a water outlet pipe 11, and a water outlet regulating valve 10 is arranged on the water outlet pipe 11; a return hole 14 is formed in one side of the clear liquid area 20, the return hole 14 is connected with a return pipe 12 and is connected with a water inlet pipe 15 at the bottom, a return regulating valve 13 for controlling water flow is arranged on the return pipe 14, and a water circulation is formed among the return pipe 14, the water inlet pipe 15 and the tower body 23; an observation sight glass 19 is arranged at the position of the active catalytic carrier chamber 26 at one outer side of the tower body 23, and the active catalytic carrier chamber 26 and the clear liquid zone 20 at the other outer side are respectively provided with a man-in hole 7 through which a person can enter the tower body to replace the active catalytic carrier or the clear liquid zone; the pipeline mixer 16 consists of a water inlet 27, a water outlet 28, a mixing cavity 29 and a dosing port 30, wherein the dosing port 30 is positioned at the top of the pipeline with the distance of 5CM from the water inlet 27 and is provided with a sealing cover plate 31; one end of the jet aerator 18 is provided with a jet water inlet 32, the jet water inlet 32 is connected to a mixing cavity 33, a flow guide turbine 34 is arranged in the mixing cavity 33, the top of the mixing cavity is provided with a total air suction port 35, and the other end of the jet aerator 18 is provided with a diffusion chamber 36.
The technical problems to be solved by the invention are as follows: through reasonable design of the ozone catalytic reactor structure, optimization of an aeration mode, optimization of a carrier material structure (particle size, density, porous characteristic, surface shape, mechanical strength, organophilic molecular property), optimization control of operation parameters and the like, the fluidization power is reduced, the investment is saved, and the organic substrate-oxide group (∙ O)2 -+HO2∙ + ∙ OH), uniform contact, more contacts, high mass transfer speed, thorough decomposition and good treatment effect.
The technical scheme adopted by the invention is as follows: adopts the process of catalytic oxidation of the ozone in a fluidized tower and is supplemented with H2O2Synergistic AOPs (O)3/H2O2) The advanced oxidation technology uses an ozone special catalyst loaded with an oxide/metal catalyst as a catalytic oxidation carrier, and adsorbs organic substance molecules and ozone product OH free radicals on the surface of the ozone special catalyst, so that the ozone utilization rate and the reaction rate are effectively improved. The active carrier is an accelerator for accelerating the decomposition of ozone and forming OH free radicals in the reaction process and promoting O3+OH-→∙O2-+HO2∙ + ∙ OH chain reaction, OH radical participates as the most main organic oxidant. The process has the characteristics that:
(1) using AOPs (O)3/H2O2) The technology accelerates the ozone decomposition and improves the reaction rate of organic matters; (2) a top return pipe is added by adopting a jet mixing technology, so that the utilization rate of ozone is over 90 percent; (3) the fluidized tower technology is adopted, so that the catalytic carrier is prevented from being compacted in the overflowing process, and the running resistance is reduced; (4) the effective fluidization of the special ozone catalyst enables an active catalytic carrier in the reactor to uniformly contact with ozone, so that the catalytic activity of the special ozone catalyst is improved; (5) the active carrier of the supported oxide/metal catalyst is used as a catalytic carrier, so that the reaction contact probability of free radicals and organic molecules is improved.
The specific process shown in fig. 4 is: a novel three-phase ozone catalytic fluidization tower comprises five parts, namely a jet aeration part, a water and gas distribution area, a catalytic reaction chamber, a reflux system and a clear liquid chamber. The device consists of a water inlet pipe, a pressure-boosting reflux pump, a jet aerator, a tower body, a water and gas distribution system, a short-handle filter head, an active catalytic carrier, a water outlet pipe, a reflux pipe, a gas reflux pipe, a water outlet weir groove, a viewing mirror and a manhole. H is added into the wastewater containing the refractory organic matters through a water inlet pipe and a pipeline mixer2O2Pressurized by a pressurizing reflux pump, then enters an incident flow aerator, passes through a nozzle, a mixing cavity and O pressed in by an air suction chamber3The gas is fully contacted and mixed and then enters a water distribution and gas distribution system arranged at the bottom of the tower body, and the kinetic energy and the gas are sprayed to wrap the clampUnder the synergistic action of entrainment promotion (density reduction caused by increase of gas content), the water-gas two-phase mixed liquid is fully mixed and flows upwards to reach the water-gas two-phase mixed liquid in a water distribution and gas distribution area and uniformly enter an active catalytic carrier area of the tower body through a short handle filter head, the water-gas-carrier three-phase mixed liquid fully contacts and reacts, then clear liquid entering a filter chamber flows out through a water outlet, part of the clear liquid is discharged through a water outlet pipe, and part of the clear liquid flows back to the front end of the booster reflux pump through a reflux pipe and is subjected to secondary circulation reaction after being subjected to pressure boosting again.
The invention, through the structure optimization and reasonable design, leads the gas-solid-liquid three-phase mixed liquid to be mixed violently in the active catalytic carrier area of the tower body, and the gas-solid-liquid three-phase mixed liquid is relatively detained in the circulating reflux outer tube for contact reaction, and is continuously circulated and relatively flowed between the two areas, thereby leading the phase interface and the active contact point to be continuously updated and fully contacted, and sequentially promoting the reaction process. Meanwhile, the jet aeration and water and gas distribution system standardizes the motion of gas-liquid-solid three phases to approximate UP-CSTR and DOWN-PF flow patterns, and has small flow resistance, easy initial fluidization and low energy consumption.
In the device, the gas-liquid-solid mixing in the upflow zone is very violent, and a large amount of liquid continuously and circularly flows in the upflow zone and the reflux zone, so that the device has great dilution and diffusion capacity and strong impact load resistance capacity.
The novel three-phase ozone catalytic fluidized tower is a high-tech multidisciplinary combined process form, has no secondary pollution, and effectively solves the problem of treatment of waste water containing refractory organic matters.
Claims (5)
1. A novel three-phase ozone catalytic vulcanizing tower, which comprises a tower body, a water inlet pipe arranged at the lower end of the tower body and a water outlet pipe arranged at the upper end of the tower body, it is characterized in that a pipeline mixer, a pressure-increasing reflux pump and a jet aerator are sequentially arranged on the water inlet pipe, the water inlet pipe is connected with a water and gas distribution main pipe at one end of a water and gas distribution area at the bottom of the tower body, the water and gas distribution branch pipes are transversely inserted into the water and gas distribution main pipe and are uniformly distributed, the other end of the water and gas distribution main pipe is provided with a drain port, the upper layer of the water and gas distribution area at the bottom is provided with a cobble layer, a short-handle filter head communicated with the water and gas distribution area is arranged at the bottom of the cobblestone layer, an active catalytic carrier chamber is arranged on the cobblestone layer, an active catalytic carrier is arranged in the active catalytic carrier chamber, the upper layer of the active catalytic carrier chamber is provided with a clear liquid area, the upper layer of the clear liquid area is provided with a water outlet weir groove, the water outlet weir groove is connected with a water outlet pipe, and the water outlet pipe is provided with a water outlet regulating valve.
2. The novel three-phase ozone catalytic vulcanizing tower as claimed in claim 1, wherein a return hole is formed at one side of the cleaning solution area, the return hole is connected with the return pipe and connected with the bottom water inlet pipe, a return regulating valve for controlling water flow is arranged on the return pipe, and a water circulation is formed among the return pipe, the water inlet pipe and the tower body.
3. A novel three-phase ozone catalytic sulfuration tower as claimed in claim 2, wherein an observation mirror is provided at the active catalytic carrier chamber at one outer side of the tower body, and the active catalytic carrier chamber and the clean liquid zone at the other outer side are respectively provided with a man-access hole for a person to enter the room for replacing the active catalytic carrier or cleaning the clean liquid zone.
4. The novel three-phase ozone catalytic vulcanization tower of claim 1, characterized in that the pipeline mixer is composed of a water inlet, a water outlet, a mixing chamber and a dosing port, wherein the dosing port is located at the top of the pipeline 5CM away from the water inlet and is provided with a sealing cover plate.
5. The novel three-phase ozone catalytic vulcanizing tower as claimed in claim 1, wherein one end of the jet aerator is provided with a jet water inlet, the jet water inlet is connected to a mixing chamber, a diversion turbine is arranged in the mixing chamber, a total air suction port is arranged at the top of the mixing chamber, and the other end of the jet aerator is provided with a diffusion chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920455888.6U CN210085058U (en) | 2019-04-05 | 2019-04-05 | Novel three-phase ozone catalytic vulcanization tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987695A (en) * | 2019-04-05 | 2019-07-09 | 杭州司迈特水处理工程有限公司 | A kind of Three phase ozone catalytic vulcanization tower |
| CN111943348A (en) * | 2020-08-27 | 2020-11-17 | 上海中耀环保实业有限公司 | Sewage ozone catalytic oxidation treatment system and method |
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2019
- 2019-04-05 CN CN201920455888.6U patent/CN210085058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987695A (en) * | 2019-04-05 | 2019-07-09 | 杭州司迈特水处理工程有限公司 | A kind of Three phase ozone catalytic vulcanization tower |
| CN111943348A (en) * | 2020-08-27 | 2020-11-17 | 上海中耀环保实业有限公司 | Sewage ozone catalytic oxidation treatment system and method |
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