CN111484170B - Ozone-hydroxyl ligand electric control coupling air floatation water treatment device - Google Patents
Ozone-hydroxyl ligand electric control coupling air floatation water treatment device Download PDFInfo
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- CN111484170B CN111484170B CN202010253152.8A CN202010253152A CN111484170B CN 111484170 B CN111484170 B CN 111484170B CN 202010253152 A CN202010253152 A CN 202010253152A CN 111484170 B CN111484170 B CN 111484170B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003446 ligand Substances 0.000 title claims abstract description 18
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000003647 oxidation Effects 0.000 claims abstract description 21
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 21
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000460 chlorine Substances 0.000 claims abstract description 12
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims abstract description 7
- 230000002195 synergetic effect Effects 0.000 claims abstract description 6
- 239000011229 interlayer Substances 0.000 claims abstract description 4
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 238000005188 flotation Methods 0.000 claims 1
- 239000013543 active substance Substances 0.000 abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- -1 hydroxyl free radical Chemical class 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an ozone-hydroxyl ligand electric control coupling air floatation water treatment device. The device comprises an outer barrel (1) and an inner barrel (2) which are coaxially arranged, wherein the upper half part of the inner barrel (2) forms an electric control core area (5), the middle part forms an air floatation area (6), the middle interlayer of the outer barrel (1) and the inner barrel (2) forms a pre-oxidation area (3), and the bottom of the inner part of the outer barrel (1) forms a sedimentation area (4); ozone is introduced into the pre-oxidation area (3) and the electric control core area (5) through an air inlet pipe (8), and electric control electrodes (11) are arranged in the electric control core area (5) in parallel. The hydroxyl ligand generated by electric control in the device is coupled with ozone to generate hydroxyl free radicals with strong oxidability, and meanwhile, active substances such as active chlorine, hydrogen peroxide and the like generated by electric control and ozone are synergistic to jointly strengthen the removal of organic pollutants in sewage.
Description
Technical Field
The invention relates to an ozone-hydroxyl ligand electric control coupling air floatation water treatment device, and belongs to the technical field of sewage treatment.
Background
The traditional ozone oxidation technology has selectivity on removing organic matters, the complete removal of the organic matters is difficult to realize, catalyst is usually required to be added for catalysis, but the recovery and regeneration utilization way of the catalyst is a bottleneck for restricting the catalytic ozone technology, so that the development of a novel ozone water treatment device without external medicaments is particularly urgent.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the ozone-hydroxyl ligand electric control coupling air floatation water treatment device which has small occupied area, strong treatment capacity, no need of external medicament and low treatment cost.
In order to achieve the purpose, the ozone-hydroxyl ligand electric control coupling air floatation water treatment device comprises an outer barrel and an inner barrel which are coaxially arranged, wherein the upper half part of the inner barrel forms an electric control core area, the middle part forms an air floatation area, the middle interlayer of the outer barrel and the inner barrel forms a pre-oxidation area, and the bottom of the inner part of the outer barrel forms a sedimentation area;
ozone is introduced into the pre-oxidation area and the electric control core area through an air inlet pipe, and electric control electrodes are arranged in the electric control core area in parallel.
Further, the pre-oxidation area is communicated with the water inlet, the top of the air floatation area is communicated with the slag discharging pipe, the inner barrel is communicated with the water discharging pipe through the water outlet barrel, and the bottom of the outer barrel is communicated with the mud discharging pipe.
Further, an active chlorine detection device controlled by a PLC is arranged in the electric control core area.
Further, titanium aeration heads are uniformly distributed on the air inlet pipe.
Further, the anode of the electric control electrode is a dimensionally stable anode, the cathode is a carbonaceous air cathode, the distance between the electrode plates of the electric control electrode is kept between 2 cm and 3cm, and the current density is 5mA/cm to 15mA/cm 2 An insulating electrode assembly rod is arranged at the upper part of the electric control electrode and is connected with each electrode, and an unpowered iron plate or aluminum plate is arranged between the electrode plates.
Further, the bottom of the inner part of the outer barrel is isolated to form a sedimentation zone through a conical baffle.
Further, the hydraulic retention time of the pre-oxidation area is designed to be 20-30 min, the hydraulic retention time of the precipitation area is designed to be 10-15 min, the hydraulic retention time of the electric control core area is designed to be 30-40 min, and the hydraulic retention time of the air floatation area is designed to be 10-15 min.
Compared with the prior art, the invention has the following beneficial effects:
the device aims at the bottlenecks of poor organic matter removal effect caused by the selective oxidation characteristic of the traditional ozone, difficult catalyst use and recovery faced by the ozone catalytic oxidation technology and the like, hydroxyl ligands generated by electric control in the device are coupled with the ozone to generate hydroxyl free radicals with strong oxidability, meanwhile, active substances such as active chlorine, hydrogen peroxide and the like generated by electric control and the ozone are synergistic effect to jointly strengthen the removal of organic pollutants in sewage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: 1. an outer tub; 2. an inner barrel; 3. a pre-oxidation zone; 4. a precipitation zone; 41. a conical baffle; 5. an electric control core area; 6. an air floatation area; 7. a water inlet; 8. an air inlet pipe; 9. a titanium aeration head; 10. an active chlorine detection device; 11. an electric control electrode; 12. a slag discharge pipe; 13. a mud pipe; 14. a water outlet cylinder; 15. and (5) a water drain pipe.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the ozone-hydroxyl ligand electric control coupling air-floatation water treatment device comprises an outer barrel 1 and an inner barrel 2 which are coaxially arranged, wherein the upper half part of the inner barrel 2 forms an electric control core area 5, the middle part forms an air-floatation area 6, the middle interlayer of the outer barrel 1 and the inner barrel 2 forms a pre-oxidation area 3, and the bottom of the inner part of the outer barrel 1 forms a sedimentation area 4; the scheme occupies small area and has more compact structure.
Ozone is introduced into the pre-oxidation area 3 and the electric control core area 5 through an air inlet pipe 8, and electric control electrodes 11 are arranged in the electric control core area 5 in parallel.
Further, the pre-oxidation area 3 is communicated with the water inlet 7, the top of the air floatation area 6 is communicated with the slag discharging pipe 12, the inner barrel 2 is communicated with the water discharging pipe 15 through the water outlet barrel 14, and the bottom of the outer barrel 1 is communicated with the mud discharging pipe 13.
The wastewater enters the pre-oxidation zone 3 from the water inlet 7, the cohesiveness of organic matters in the wastewater is improved, and the formation of ozone-hydroxyl ligands in the electric control core zone 5 is enhanced. The wastewater automatically flows into the electric control core area 5 after pre-oxidation, hydroxyl ligand generated by electrolysis in the electric control core area 5 is coupled with ozone to generate hydroxyl free radical with strong oxidability, and active substances such as active chlorine, hydrogen peroxide and the like generated by electrolysis and ozone are synergistic to jointly strengthen the removal of organic pollutants in the wastewater. Heavy floccules generated in the pre-oxidation area 3 and the electric control core area 5 are removed through a sludge discharge pipe 13 after being precipitated in the precipitation area 4. The wastewater after the electric control core area 5 enters the air floatation area 6, organic matters carried by ozone-hydroxyl ligands are further removed under the combined action of various active substances in the air floatation area 6, the air floatation process is completed under the action of ozone microbubbles, and the generated scum is discharged through the slag discharge pipe 12. The wastewater after air floatation is discharged through the water outlet pipe 15 after entering the water outlet cylinder 14, the preferable scheme can realize the self-flow of the water body in the device, the measures of adding a pressure pump in the device are saved, the energy consumption of the device is low, and the treatment efficiency is high.
Further, an active chlorine detection device 10 controlled by a PLC is arranged in the electric control core area 5. The PLC controller regulates and controls the direct current power supply in real time through the received active chlorine components and concentration signals to provide different electrode potentials, so that the synergistic effect of the active chlorine and ozone can be enhanced.
Further, titanium aeration heads 9 are uniformly distributed on the air inlet pipe 8. The titanium aeration head 9 is arranged at the bottom of the electric control core area 5 and is used for diffusing ozone which is added through the air inlet 8, and the ozone adding amount is 0.5-1 mg O 3 and/mgCOD, the cohesiveness of organic matters in the oxidized organic wastewater is improved, the content of suspended matters is greatly reduced, and the required ozone adding amount is greatly reduced.
Further, the anode of the electric control electrode 11 is a dimensionally stable anode, oxygen mixed in the ozone generates hydroxyl free radicals through the catalysis of the anode, and meanwhile, chloride ions existing in the water body generate active chlorine through the catalysis of the anode, and the removal of organic matters is enhanced through the synergistic effect of the active chlorine and the ozone. The cathode of the electric control electrode 11 is a carbonaceous air cathode, and simultaneously realizes the electrocatalytic reduction of ozone and oxygen to generate hydroxyl radicals and hydrogen peroxide, thereby strengthening the removal of organic matters in the wastewater. Electrode of electric control electrode 11The distance between the plates is kept 2-3 cm, and the current density is 5-15 mA/cm 2 An insulating electrode assembly rod is arranged at the upper part of the electric control electrode 11 and is connected with each electrode so as to facilitate the replacement of the polar plate. An unpowered iron plate or aluminum plate is arranged between the electrode plates, hydroxyl ligand is generated by induction electrification in an electric field between the cathode and anode plates, and hydroxyl free radical with strong oxidability is generated by coupling action with ozone, so that removal of organic matters is enhanced.
Further, the hydraulic retention time of the pre-oxidation area 3 is designed to be 20-30 min, the hydraulic retention time of the precipitation area 4 is designed to be 10-15 min, the hydraulic retention time of the electric control core area 5 is designed to be 30-40 min, and the hydraulic retention time of the air floatation area 6 is designed to be 10-15 min.
Further, the bottom of the inner part of the outer barrel 1 is isolated by a conical baffle 41 to form a sedimentation zone 4.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (5)
1. An ozone-hydroxyl ligand electric control coupling air floatation water treatment device is characterized in that,
the device comprises an outer barrel (1) and an inner barrel (2) which are coaxially arranged, wherein the upper half part of the inner barrel (2) forms an electric control core area (5), the middle part forms an air floatation area (6), the middle interlayer of the outer barrel (1) and the inner barrel (2) forms a pre-oxidation area (3), and the bottom of the outer barrel (1) forms a sedimentation area (4);
ozone is introduced into the pre-oxidation area (3) and the electric control core area (5) through an air inlet pipe (8), and electric control electrodes (11) are arranged in the electric control core area (5) in parallel;
the anode of the electric control electrode (11) is a dimensionally stable anode, the cathode is a carbonaceous air cathode, the distance between the electrode plates of the electric control electrode (11) is kept to be 2-3 cm, the current density is 5-15 mA/cm < 2 >, the upper part of the electric control electrode (11) is provided with an insulating electrode assembly rod which is connected with each electrode, and an unpowered iron plate or aluminum plate is arranged between the electrode plates;
the anode of the electric control electrode (11) is a dimensionally stable anode, oxygen mixed in the ozone generates hydroxyl free radicals through the catalysis of the anode, and meanwhile, chloride ions existing in the water body generate active chlorine through the catalysis of the anode and enhance the removal of organic matters through the synergistic effect of the ozone; the cathode of the electric control electrode (11) is a carbonaceous air cathode, and simultaneously realizes electrocatalytic reduction of ozone and oxygen to generate hydroxyl free radicals and hydrogen peroxide, so as to strengthen removal of organic matters in the wastewater;
the pre-oxidation zone (3) is communicated with the water inlet (7), the top of the air flotation zone (6) is communicated with the slag discharge pipe (12), the inner barrel (2) is communicated with the drain pipe (15) through the water outlet barrel (14), and the bottom of the outer barrel (1) is communicated with the mud discharge pipe (13).
2. The ozone-hydroxyl ligand electrically-controlled coupling air-floating water treatment device according to claim 1, wherein,
an active chlorine detection device (10) controlled by a PLC is arranged in the electric control core area (5).
3. The ozone-hydroxyl ligand electrically-controlled coupling air-floating water treatment device according to claim 1, wherein,
titanium aeration heads (9) are uniformly distributed on the air inlet pipe (8).
4. The ozone-hydroxyl ligand electrically-controlled coupling air-floating water treatment device according to claim 1, wherein,
the hydraulic retention time of the pre-oxidation area (3) is designed to be 20-30 min, the hydraulic retention time of the precipitation area (4) is designed to be 10-15 min, the hydraulic retention time of the electric control core area (5) is designed to be 30-40 min, and the hydraulic retention time of the air floatation area (6) is designed to be 10-15 min.
5. The ozone-hydroxyl ligand electrically-controlled coupling air-floating water treatment device according to claim 1, wherein,
the bottom of the inner part of the outer barrel (1) is isolated to form a sedimentation zone (4) by a conical baffle (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010253152.8A CN111484170B (en) | 2020-04-02 | 2020-04-02 | Ozone-hydroxyl ligand electric control coupling air floatation water treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010253152.8A CN111484170B (en) | 2020-04-02 | 2020-04-02 | Ozone-hydroxyl ligand electric control coupling air floatation water treatment device |
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| CN111484170A CN111484170A (en) | 2020-08-04 |
| CN111484170B true CN111484170B (en) | 2023-12-22 |
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| CN115520939A (en) * | 2022-10-11 | 2022-12-27 | 西安交通大学 | Multipole type electric control coupling ozone air flotation water treatment device |
Citations (5)
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|---|---|---|---|---|
| JP2009034625A (en) * | 2007-08-02 | 2009-02-19 | Mhi Environment Engineering Co Ltd | Wastewater treatment apparatus and method |
| CN102745794A (en) * | 2011-04-21 | 2012-10-24 | 北京市自来水集团有限责任公司 | Drinking water electrochemical preoxidation device and method |
| CN106495370A (en) * | 2016-12-06 | 2017-03-15 | 西安建筑科技大学 | A kind of electrolysis inducing ozone air-floating integral unit |
| CN110240326A (en) * | 2019-06-28 | 2019-09-17 | 西安建筑科技大学 | Air bearing and the coupling integrated device of precipitating |
| CN212315797U (en) * | 2020-04-02 | 2021-01-08 | 江苏永冠给排水设备有限公司 | Ozone-hydroxyl ligand electric control coupling air flotation water treatment device |
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2020
- 2020-04-02 CN CN202010253152.8A patent/CN111484170B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009034625A (en) * | 2007-08-02 | 2009-02-19 | Mhi Environment Engineering Co Ltd | Wastewater treatment apparatus and method |
| CN102745794A (en) * | 2011-04-21 | 2012-10-24 | 北京市自来水集团有限责任公司 | Drinking water electrochemical preoxidation device and method |
| CN106495370A (en) * | 2016-12-06 | 2017-03-15 | 西安建筑科技大学 | A kind of electrolysis inducing ozone air-floating integral unit |
| CN110240326A (en) * | 2019-06-28 | 2019-09-17 | 西安建筑科技大学 | Air bearing and the coupling integrated device of precipitating |
| CN212315797U (en) * | 2020-04-02 | 2021-01-08 | 江苏永冠给排水设备有限公司 | Ozone-hydroxyl ligand electric control coupling air flotation water treatment device |
Non-Patent Citations (1)
| Title |
|---|
| 电生成强氧化剂处理染料废水试验研究;方建章等;水处理技术(第第3期期);173-175 * |
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