CN113121045A - Electric flocculation ozone coupling sewage treatment device for collecting produced gas - Google Patents
Electric flocculation ozone coupling sewage treatment device for collecting produced gas Download PDFInfo
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- CN113121045A CN113121045A CN202110429903.1A CN202110429903A CN113121045A CN 113121045 A CN113121045 A CN 113121045A CN 202110429903 A CN202110429903 A CN 202110429903A CN 113121045 A CN113121045 A CN 113121045A
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- 238000005189 flocculation Methods 0.000 title claims abstract description 64
- 230000016615 flocculation Effects 0.000 title claims abstract description 62
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000010865 sewage Substances 0.000 title claims abstract description 25
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005352 clarification Methods 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 62
- 239000001257 hydrogen Substances 0.000 claims description 31
- 229910052739 hydrogen Inorganic materials 0.000 claims description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 29
- 239000012528 membrane Substances 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 14
- 239000012510 hollow fiber Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009297 electrocoagulation Methods 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 description 11
- 230000003647 oxidation Effects 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 150000004696 coordination complex Chemical class 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- AQCHWTWZEMGIFD-UHFFFAOYSA-N metolazone Chemical compound CC1NC2=CC(Cl)=C(S(N)(=O)=O)C=C2C(=O)N1C1=CC=CC=C1C AQCHWTWZEMGIFD-UHFFFAOYSA-N 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D2053/221—Devices
- B01D2053/223—Devices with hollow tubes
- B01D2053/224—Devices with hollow tubes with hollow fibres
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2201/007—Modular design
Abstract
The invention relates to an electrocoagulation ozone coupling sewage treatment device for collecting produced gas, wherein an electronic flocculation unit is arranged in a device body, an active carbon filler area is arranged below the electronic flocculation unit, a sewage inlet pipe is arranged in the active carbon filler area, an aeration device is arranged in the active carbon filler area, an electronic flocculation module is arranged above the active carbon filler area, a gas collecting device is arranged above the electronic flocculation module, the gas collecting device is arranged above the device body, the top of the gas collecting device is connected with the air inlet of an air compressor through an induced draft fan, the air outlet of the air compressor is connected with a gas separation unit, the electronic flocculation unit is provided with a water outlet, the water outlet is connected with a deflection area and arranged above the left side of the deflection area, the deflection area comprises a first deflection area and an inclined plate clarification area, the first deflection area is connected with the inclined plate clarification area through, the bottom of the inclined plate clarification area is provided with a sludge discharge port, and a vent port is arranged below the right side edge.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an electric flocculation ozone coupling sewage treatment device for collecting produced gas.
Background
The advanced treatment and resource utilization of sewage are important ways for relieving water resource shortage, and the advanced treatment of the sewage containing organic matters is usually carried out by adopting 'coagulating sedimentation and biological treatment'. The process has the defects of long treatment process, incapability of treating sewage containing biological toxicity and the like.
The electric flocculation is an electrochemical flocculation process, has the advantages of no need of adding chemicals, capability of quickly flocculating and precipitating suspended matters and the like, and has the defect of insufficient oxidation capability on soluble organic matters.
Ozone is a homomorphic body of oxygen, has an oxidation potential of 2.07V, belongs to a strong oxidant, can be produced on site, can be prepared by using an air source or an oxygen source, has strong ozone oxidation capability when being widely used in water treatment engineering, but has selectivity in oxidation reaction, and has unsatisfactory effect on treating nondegradable organic pollutants with stable chemical structures. Ozone catalytic oxidation utilizes ozone to generate OH (hydroxyl radical) under the action of a catalyst, the oxidation potential of the OH is 2.8V, the oxidation capacity is stronger than that of ozone, and selective oxidation is not carried out.
The coupling of the electric flocculation and the ozone requires the addition of an ozone catalyst, and the energy consumption of the electric flocculation and the ozone generator is higher. How to reduce the investment of the catalyst and reduce the energy consumption generated by ozone generation; how to collect and utilize hydrogen and oxygen generated by electrolyzing water by electric flocculation is a technical problem which needs to be solved urgently.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides an electric flocculation ozone coupling sewage treatment device for collecting generated gas, which solves the problem of insufficient capacity of electric flocculation for oxidizing soluble organic matters and Al (OH) generated by electric flocculation3、Fe(OH)2、 Fe(OH)2The metal complex is loaded on the active carbon packing layer, is proved to be a good heterogeneous phase loaded metal ozone catalyst, and solves the problem of adding the ozone catalyst. The hydrogen and the oxygen generated by electrolyzing water by the electric flocculation electrode plate are collected and separated, the oxygen is introduced into the ozone generator and is used as an oxygen source of the ozone generator, the hydrogen is collected, the energy consumption of equipment is reduced, and gas resources are recycled.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
an electric flocculation ozone coupling sewage treatment device for collecting produced gas comprises a device body 22, wherein an electronic flocculation unit 23 is arranged in the device body, an activated carbon filling area 2 is arranged below the electronic flocculation unit, a sewage inlet pipe 1 is arranged below the activated carbon filling area, an aeration device 6 is arranged inside the activated carbon filling area, an electronic flocculation module 3 is arranged above the activated carbon filling area, a gas collection device 7 is arranged above the electronic flocculation module, the gas collection device is arranged above the device body, the top of the gas collection device is connected with an air inlet of an air compressor 8 through an induced draft fan, an air outlet of the air compressor is connected with a gas separation unit 24, the electronic flocculation unit is provided with a water outlet, the water outlet is connected with a baffling area 14 and is arranged above the left side of the baffling area, the baffling area 14 comprises a first baffling area and an inclined plate clarifying area, the first baffling area 27 is connected with the inclined plate clarifying area 15 through a baffling plate 25, the baffling plate is fixedly connected with the top of the device body, the front side and the rear side of the device body, the bottom of the baffling plate is of an open structure, a clear water overflow pipe orifice 20 is arranged above the inclined plate clarifying area, a sludge discharge port 18 is arranged at the bottom of the inclined plate clarifying area, and a vent 19 is arranged below the right side of the inclined plate clarifying area.
Further, the aeration device 6 is connected with the air outlet of the ozone generator 4 through an air inlet pipe 5.
Furthermore, an overflow slag discharge port 21 is arranged above the left side of the baffle plate, the overflow slag discharge port 21 is connected with a scum discharge pipe, and the scum discharge pipe 17 is used for discharging suspended substance scum generated by electronic flocculation.
Further, the inclined plate clarification area comprises six-side pipes 26 arranged between the baffle plate and the right side shell of the device body, the six-side pipes are arranged into two groups in the inclined plate clarification area, the two groups are opposite in arrangement direction, the height of each group of six-side pipes is 1m, and the inclination angle is 60 degrees.
Furthermore, the right side bottom that the electron flocculation unit bottom was provided with the electron flocculation district is provided with mud pipe 16, the discharge of mud is held back with electron flocculation module and active carbon.
Further, the gas separation unit 24 includes a composite hollow fiber molecular membrane sieve 10, a hydrogen storage tank 11, and an intermediate gas storage tank 9, wherein gas coming out from the gas outlet of the air compressor enters the composite hollow fiber molecular membrane sieve through a pipeline, the composite hollow fiber molecular membrane sieve 10 is connected with the hydrogen storage tank 11 through a bottom hydrogen conveying pipeline 13, and the composite hollow fiber molecular membrane sieve 10 is connected with the intermediate gas storage tank 9 through a bottom gas pipeline.
Further, an oxygen source pipeline 12 is arranged at the bottom of the intermediate gas storage tank 9 and is used for guiding oxygen and ozone in the intermediate gas storage tank into the ozone generator 4.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention combines the processes of electronic flocculation, ozone catalytic oxidation, gas collection and reuse, baffling clarification and the like, and compresses the original process flow with long flow and large occupied area into a smaller and compact integrated device through reasonable arrangement. The occupied area and capital investment are reduced;
2. according to the invention, the traditional dosing coagulation mode is replaced by the electronic flocculation technology, so that the dosing cost is reduced, the reaction speed is increased, and the environment-friendly effect is higher;
3. compared with the common ozone catalytic oxidation, the method has the advantages that no catalyst is needed to be added, after the electrocoagulation reaction is carried out for a period of time, the generated metal hydroxide is loaded on the surface of the activated carbon to form a heterogeneous ozone catalytic layer, no secondary pollution is caused, the treatment time is shorter compared with a common biological treatment mode, the integrated process can adjust the electrocoagulation current density and the ozone generation concentration, and the method can intelligently adapt to the change of water quality and water quantity;
4. the sewage treatment integrated device reduces the intermediate water tank and the intermediate water pump after electronic flocculation, reduces the head loss and has less pollution blockage;
5. the invention collects the oxygen and hydrogen generated by the electric flocculation electrolysis of water, separates the hydrogen from other gases through the composite hollow fiber membrane, realizes resource utilization, and connects the residual oxygen and ozone with the oxygen inlet of the ozone generator, thereby realizing the recycling of the residual gas.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, an electric flocculation ozone coupling sewage treatment device for collecting produced gas comprises a device body 22, an electronic flocculation unit 23 is arranged in the device body, an activated carbon filler area 2 is arranged below the electronic flocculation unit, a sewage inlet pipe 1 is arranged below the activated carbon filler area, an aeration device 6 is arranged inside the activated carbon filler area, an electronic flocculation module 3 is arranged above the activated carbon filler area, and the technical principle adopted by the electronic flocculation unit is as follows: in a low-voltage direct-current electric field, the anode is subjected to oxidation reaction, metal cations Al3+, Fe2+ and Fe3+ are dissolved out, and a large amount of oxygen is generated; the cathode generates reduction and hydrogen evolution reaction to produce a large amount of OH & lt- & gt and hydrogen, and the metal cation and the OH & lt- & gt generate reaction to generate Al (OH)3、Fe(OH)2、 Fe(OH)2And the metal complexes can lead suspended particles in water to be condensed and destabilized, the heavier suspended particles are caught and precipitated, and the other part of suspended particles float on the surface of the liquid along with the generated bubbles. A gas collecting device 7 is arranged above the electronic flocculation module and used for collecting oxygen, hydrogen and residual gas produced by the electronic flocculation unitIs collected. The gas collecting device is arranged above the device body and adopts a conical steel structure, the top of the gas collecting device is connected with the gas inlet of the air compressor 8 through the draught fan, hydrogen and oxygen generated by electrolyzed water are led into the air compressor through the draught fan, the gas outlet of the air compressor is connected with the gas separation unit 24, and the hydrogen, the oxygen and ozone are led into the gas separation unit by the air compressor to be separated. The electronic flocculation unit is provided with a water outlet, the water outlet is connected with the baffling area 14 and arranged above the left side of the baffling area, the baffling area 14 comprises a first baffling area and an inclined plate clarification area, the first baffling area 27 is connected with the inclined plate clarification area 15 through a baffle plate 25, the baffle plate is fixedly connected with the top of the device body and the front side and the rear side of the device body, the bottom of the device body is of an open structure, effluent of the electronic flocculation unit flows back through the baffle plate, removal of suspended matters is further ensured through secondary electrocoagulation, a clear water overflow pipe orifice 20 is arranged above the inclined plate clarification area, a sludge discharge port 18 is arranged at the bottom of the inclined plate clarification area, a vent 19 is arranged below the right side, and the vent is responsible for emptying water in.
Further, the aeration device 6 is connected with the air outlet of the ozone generator 4 through an air inlet pipe 5. The metal complex generated by the electronic flocculation module is precipitated at the bottom of a part of metal complex precipitated at the bottom of the electric flocculation unit, the bottom of the electric flocculation unit is provided with an activated carbon packing layer, an aeration device and an air inlet pipe, the precipitated metal complex and activated carbon form an ozone catalysis layer loaded with a metal catalyst, the valence state of the metal is changed to participate in oxidation-reduction reaction, the ozone can oxidize micromolecule acid, phenol, aldehyde and the like which cannot be degraded by ozone alone under the action of the loaded metal catalyst, the organic matter can be completely mineralized, and the TOC removal rate of sewage is improved.
Furthermore, an overflow slag discharge port 21 is arranged above the left side of the baffle plate, the overflow slag discharge port 21 is connected with a scum discharge pipe, and the scum discharge pipe 17 is used for discharging suspended substance scum generated by electronic flocculation.
Go toThe inclined plate clarification area comprises six side pipes 26 arranged between the baffle plate and the right side shell of the device body, the six side pipes are arranged into two groups in the inclined plate clarification area, the two groups are arranged in opposite directions, the height of each group of six side pipes is 1m, the inclination angle is 60 degrees, and the sedimentation area is 10m2. The sewage passes through the inclined plate clarification area, the flow velocity is greatly slowed down, and a sludge discharge port is arranged at the bottom to discharge the sludge into the sludge discharge device body.
Furthermore, the right side bottom that the electron flocculation unit bottom was provided with the electron flocculation district is provided with mud pipe 16, the discharge of mud is held back with electron flocculation module and active carbon.
Further, the gas separation unit 24 includes a composite hollow fiber molecular membrane sieve 10, a hydrogen storage tank 11, and an intermediate gas storage tank 9, wherein gas coming out from the gas outlet of the air compressor enters the composite hollow fiber molecular membrane sieve through a pipeline, the composite hollow fiber molecular membrane sieve 10 is connected with the hydrogen storage tank 11 through a bottom hydrogen conveying pipeline 13, and the composite hollow fiber molecular membrane sieve 10 is connected with the intermediate gas storage tank 9 through a bottom gas pipeline. The molecular sieve membrane in the composite hollow fiber molecular membrane sieve can intercept 0.1nm hydrogen molecules, 99% of hydrogen is recovered, the recovered hydrogen is stored in a hydrogen storage tank, the rest air components are mainly oxygen, a small part of residual ozone and the rest 1% of hydrogen and enter an intermediate gas storage tank, a hydrogen outlet is arranged above the intermediate gas storage tank and is connected with a hydrogen outlet pipe, the hydrogen outlet pipe is connected with the hydrogen storage tank and the intermediate gas storage tank, the hydrogen is led into the hydrogen storage tank from the intermediate gas storage tank through the hydrogen outlet pipe, and the oxygen and the small part of residual ozone in the intermediate gas storage tank are led into an ozone generator as an oxygen source to be recycled.
Further, an oxygen source pipeline 12 is arranged at the bottom of the intermediate gas storage tank 9, and is used for guiding oxygen and ozone in the intermediate gas storage tank into the ozone generator 4, so that gas recycling and resource recovery can be realized. Air source and oxygen source pipeline can be selected to ozone generator's the source of admitting air in this application file to well oxygen concentration to oxygen source pipeline lets in ozone generator detects, when providing sufficient oxygen in the oxygen source pipeline, closes the air source, opens the oxygen source import, when reducing the energy consumption, can improve the concentration value of ozone, when the electricity flocculation unit just begins to operate, perhaps when the oxygen source pipeline oxygen suppliment is not enough, opens the air source, produces ozone.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a collect electric flocculation ozone coupling sewage treatment plant of producing gas which characterized in that: comprises a device body (22), an electronic flocculation unit (23) is arranged in the device body, an active carbon filler area (2) is arranged below the electronic flocculation unit, a sewage inlet pipe (1) is arranged below the active carbon filler area, an aeration device (6) is arranged inside the active carbon filler area, an electronic flocculation module (3) is arranged above the active carbon filler area, a gas collection device (7) is arranged above the electronic flocculation module, the gas collection device is arranged above the device body, the top of the gas collection device is connected with the air inlet of an air compressor (8) through an induced draft fan, the air outlet of the air compressor is connected with a gas separation unit (24), the electronic flocculation unit is provided with a water outlet, the water outlet is connected with a baffling area (14) and is arranged above the left side of the baffling area, the baffling area (14) comprises a first baffling area and an inclined plate clarification area, the first baffling area (27) is connected with the inclined plate clarification area (15) through a baffling plate (25), the baffling plate is fixedly connected with the top of the device body, the front side and the rear side of the device body, the bottom of the baffling plate is of an open structure, a clear water overflow pipe orifice (20) is arranged above the inclined plate clarification area, a sludge discharge port (18) is arranged at the bottom of the inclined plate clarification area, and a vent (19) is arranged below the right side.
2. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: the aeration device (6) is connected with the air outlet of the ozone generator (4) through an air inlet pipe (5).
3. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: an overflow slag discharge port (21) is arranged above the left side of the baffle plate, the overflow slag discharge port (21) is connected with a scum discharge pipe, and the scum discharge pipe (17) is used for discharging suspended substance scum generated by electronic flocculation.
4. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: the inclined plate clarification area comprises six-side pipes (26) arranged between the baffle plate and the right side shell of the device body, the six-side pipes are arranged into two groups in the inclined plate clarification area, the two groups are arranged in opposite directions, the height of each group of six-side pipes is 1m, and the inclination angle is 60 degrees.
5. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: the right side bottom that the electron flocculation unit bottom was provided with the electron flocculation district is provided with sludge discharge pipe (16), holds back the discharge of mud with electron flocculation module and active carbon.
6. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: the gas separation unit (24) comprises a composite hollow fiber molecular membrane sieve (10), a hydrogen storage tank (11) and an intermediate gas storage tank (9), gas coming out of a gas outlet of the air compressor enters the composite hollow fiber molecular membrane sieve through a pipeline, the composite hollow fiber molecular membrane sieve (10) is connected with the hydrogen storage tank (11) through a bottom hydrogen conveying pipeline (13), and the composite hollow fiber molecular membrane sieve (10) is connected with the intermediate gas storage tank (9) through a bottom gas pipeline.
7. The electric flocculation ozone coupling sewage treatment device for collecting generated gas according to claim 1, which is characterized in that: an oxygen source pipeline (12) is arranged at the bottom of the intermediate gas storage tank (9) and used for guiding oxygen and ozone in the intermediate gas storage tank into the ozone generator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429903.1A CN113121045A (en) | 2021-04-21 | 2021-04-21 | Electric flocculation ozone coupling sewage treatment device for collecting produced gas |
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| CN113800691A (en) * | 2021-10-08 | 2021-12-17 | 江苏京源环保股份有限公司 | Integrated electronic flocculation wastewater treatment method and treatment equipment |
| CN114380364A (en) * | 2021-12-20 | 2022-04-22 | 中海油天津化工研究设计院有限公司 | Electric flocculation coupling ozone catalytic oxidation reactor |
| CN114538683A (en) * | 2022-03-15 | 2022-05-27 | 旭彤环保科技南通有限公司 | Buried integrated sewage treatment system and treatment method thereof |
| CN115417536A (en) * | 2022-07-15 | 2022-12-02 | 中国石油大学(华东) | System and method for treating oilfield sewage and synchronously producing hydrogen |
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