CN104386801A - Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method - Google Patents
Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method Download PDFInfo
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- CN104386801A CN104386801A CN201410758516.2A CN201410758516A CN104386801A CN 104386801 A CN104386801 A CN 104386801A CN 201410758516 A CN201410758516 A CN 201410758516A CN 104386801 A CN104386801 A CN 104386801A
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- Prior art keywords
- air lift
- reaction tank
- water
- gas
- ozone
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 20
- 238000006385 ozonation reaction Methods 0.000 title abstract description 6
- 238000004065 wastewater treatment Methods 0.000 title abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000010865 sewage Substances 0.000 claims description 25
- 238000007254 oxidation reaction Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 claims description 9
- 230000001351 cycling effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 208000036142 Viral infection Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005706 microflora Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003403 water pollutant Substances 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
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/784—Diffusers or nozzles for ozonation
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)
Abstract
The invention belongs to the technical field of environmental protection and relates to a gas-stripping circulating catalytic ozonation reaction device and an advanced wastewater treatment method. The device comprises one or more gas-stripping circulating pipes positioned at the bottom of a reaction tank, an ozone microporous aeration head positioned at the bottom of each gas-stripping circulating pipe, and a flow bed catalyst. Treated wastewater, the flow bed catalyst and tiny bubbles are repeatedly circulated inside and outside the gas-stripping circulating pipes under the action of gas-stripping circulating flow, so that the catalytic ozonation efficiency is improved; difficult-to-degrade organic matters in the treated wastewater are ozonized, so that the chemical oxygen demand (COD) of the wastewater is reduced and the biodegradability of the oxidized organic matters is improved.
Description
Technical field
The invention belongs to environmental protection technical field, particularly water-treatment technology field, relate to a kind of air lift circulation ozone catalytic oxidation reaction device and advanced treatment method for sewage water.
Technical background
Along with Economic development, the mankind are more and more serious to the pollution of water, more and more higher to the requirement of Water warfare, sewage disposal and regeneration effluent.Putting before this, Novel sewage treatment technology and method also more and more seem heavy to pass, especially the treatment technology of difficult degradation sewage and and advanced treatment of wastewater technology.
Advanced treatment of wastewater refers to and processes further to realize lowering disposal of pollutants or reaching subsequent regeneration processing requirement to the sewage through traditional wastewater process.
Industrial sewage or industry and municipal combined sewage be usually difficult to reach emission standard through traditional sewage water treatment method, have larger pollution to environment.In order to lower pollution, advanced treatment of wastewater should be carried out to this kind of water.
The recycle of water will be one of the most important approach of water-deficient area sustainable economic development.Regeneration effluent gordian technique is membrane technique, and advanced treatment of wastewater is bridge necessary between traditional wastewater process and membrane technique.
But particularly always have some to be difficult to biological degradation in industrial sewage in sewage, or even to the virose pollutent of microflora.These pollutents can pass through chemical reaction, make it sex change and become bio-degradable.
Ozone can oxidize majority organism, can directly reduce contamination index's chemical oxygen demand (COD), but efficiency is lower by ozone oxidation.Can be changed the biochemical characteristic of hardly degraded organic substance by ozone oxidation, then by biochemical method by contaminant degradation, such efficiency is higher.Ozone oxidation efficiency can be improved by the method for adding ozone oxidation catalyst.
But the reaction of ozone and water pollutant relates to the competition that ozone solution and ozone are overflowed, how the competition of ozone reaction and ozone decomposed, therefore improve the dissolving of ozone and be the key improving ozone efficiency with fully contacting of solid-phase catalyst.The method increasing solid-phase catalyst, processed sewage and ozone gas three and contact is lacked in known technology.
Summary of the invention
The present invention will solve the technical problem that in known technology, ozone reaction efficiency is lower, disclose a kind of utilize air lift circulate by catalyst fluidization and change liquids and gases flow to air lift circulation ozone catalytic oxidation reaction device and advanced treatment method for sewage water.
In order to realize above object, this air lift circulation ozone catalytic oxidation reaction device comprises a reaction tank, at least one ozone micro porous aeration head being positioned at the air lift circulation tube bottom reaction tank and being positioned at bottom each air lift circulation tube; Open bottom described air lift circulation tube, top seal is cut side, top and is provided with multiple pod apertures; Catalyzer water conservancy diversion skewed slot is provided with bottom described reaction tank; Described reaction tank top is provided with exhaust port, maintenance manhole and water outlet, and bottom is provided with water inlet and ozone gas pipeline.
Also fluidized-bed catalyst is comprised in described catalytic ozonation reaction unit.
Air lift circulation ozone catalytic oxidation advanced treatment method for sewage water of the present invention comprises and fluidized-bed catalyst is added reaction tank, processed sewage is injected reaction tank through water inlet, then by the gas containing ozone by ozone gas pipeline and at least one micro porous aeration head expose to the sun bottom at least one air lift circulation tube into; In reaction tank, catalyzer, water and gas are subject to gas stripping fast to upper reaches in air lift circulation tube inside, pod apertures water conservancy diversion through being located at gas circulating tube upper side turns to, major part water-band moves micro-bubble to dirty, catalyzer moves downward simultaneously, water again enters thrust-augmenting nozzle and upwards flows bottom air lift thrust-augmenting nozzle, realizes air lift circulation; Bottom catalyst sedimentation to reaction tank, the catalyzer water conservancy diversion skewed slot be located at bottom reaction tank flows to bottom air lift circulation tube, again enters gas circulating tube and to upper reaches, realize iterative cycles under the effect of air lift cycling stream; Air pocket is up gradually, discharges through exhaust port; Small part flows through to upper reaches after the water of pod apertures, and continues to react with residue ozone, finally discharges through water outlet.
The beneficial effect of air lift circulation ozone catalytic oxidation reaction device and advanced treatment method for sewage water shows that sewage and catalyzer are under the effect of gas circulation stream, inner to upper reaches at air lift circulation tube, at air lift circulation tube externally to dirty, and iterative cycles.Under current drive, micro-bubble is at air lift circulation tube externally to dirty, extends the residence time of micro-bubble.Momentum containing ozone gas is used to produce air lift cycling stream, achieves sewage, catalyzer contacts repeatedly with micro-bubble inside and outside air lift circulation tube, improves the efficiency of catalytic ozonation reaction.Hardly degraded organic substance in processed sewage is by ozone oxidation, and the chemical oxygen demand (COD) of sewage is reduced, and the biodegradability of organic matter after oxidation is improved.
Accompanying drawing explanation
Fig. 1 air lift circulation ozone of the present invention catalytic oxidation reaction device and advanced treatment method for sewage water structural representation
100. reaction tanks in Fig. 1,101. water inlets, 102 water outlets, 103. exhaust ports, 104. manholes, 105. catalyzer water conservancy diversion skewed slots, 201. air lift circulation tubes, 202. pod apertures, 301. micro porous aeration heads.
Embodiment
See Fig. 1, this air lift circulation ozone catalytic oxidation reaction device comprises a reaction tank (100), and at least one is positioned at the air lift circulation tube (201) of reaction tank (100) bottom and is positioned at an ozone micro porous aeration head (301) of each air lift circulation tube (201) bottom; Described air lift circulation tube (201) bottom is open, and top seal is cut side, top and is provided with multiple pod apertures (202); Described reaction tank (100) bottom is provided with catalyzer water conservancy diversion skewed slot (105); Described reaction tank (100) top is provided with exhaust port (103), maintenance manhole (104) and water outlet (102), and bottom is provided with into water (101) and ozone gas pipeline (302).
Also fluidized-bed catalyst is comprised in described catalytic ozonation reaction unit.
Air lift circulation tube (201) is highly the 20-65% of reaction tank (100) height.
Reaction tank (100) and air lift circulation tube (201) external form are not limit.
Described air lift circulation ozone catalytic oxidation reaction device also comprises ozone tail gas decomposer.
Air lift circulation ozone catalytic oxidation advanced treatment method for sewage water of the present invention comprises and fluidized-bed catalyst is added reaction tank (100), processed sewage is injected reaction tank (100) through water inlet, then by the gas containing ozone by ozone gas pipeline (302) and at least one micro porous aeration head (301) expose to the sun bottom at least one air lift circulation tube (201) into; Described air lift circulation tube (201) bottom is open, and top seal is cut side, top and is provided with multiple pod apertures (202); In reaction tank (100), catalyzer, water and gas are subject to gas stripping fast to upper reaches in air lift circulation tube (201) inside, pod apertures (202) water conservancy diversion through being located at gas circulating tube (201) upper side turns to, major part water-band moves micro-bubble to dirty, catalyzer moves downward simultaneously, water again enters thrust-augmenting nozzle (210) through air lift thrust-augmenting nozzle (201) bottom and upwards flows, and realizes air lift circulation; Catalyst sedimentation is to reaction tank (100) bottom, the catalyzer water conservancy diversion skewed slot (105) being located at reaction tank (100) bottom flows to air lift circulation tube (201) bottom, under the effect of air lift cycling stream, again enter gas circulating tube (201) and to upper reaches, realize iterative cycles; Air pocket is up gradually, discharges through exhaust port (103); Small part flows through to upper reaches after the water of pod apertures (202), and continues to react with residue ozone, finally discharges through water outlet (102).
Claims (4)
1. an air lift circulation ozone catalytic oxidation reaction device is characterized in that comprising a reaction tank (100), and at least one is positioned at the air lift circulation tube (201) of reaction tank (100) bottom and is positioned at an ozone micro porous aeration head (301) of each air lift circulation tube (201) bottom; Described air lift circulation tube (201) bottom is open, and top seal is cut side, top and is provided with multiple pod apertures (202); Catalyzer water conservancy diversion skewed slot (105) is provided with bottom described reaction tank; Described reaction tank (100) top be provided with exhaust port (103) and maintenance manhole (104), water inlet (101), ozone gas pipeline (302) and water outlet (102).
2. air lift circulation ozone catalytic oxidation reaction device according to claim 1, characterized by further comprising fluidized-bed catalyst.
3. air lift circulation ozone catalytic oxidation reaction device according to claim 1, is characterized in that air lift circulation tube (201) is highly the 20-65% of reaction tank (100) height.
4. an air lift circulation ozone catalytic oxidation advanced treatment method for sewage water is characterized in that fluidized-bed catalyst being added reaction tank (100), processed sewage is injected reaction tank (100) through water inlet, then by the gas containing ozone by ozone gas pipeline (302) and at least one micro porous aeration head (301) expose to the sun bottom at least one air lift circulation tube (201) into; Described air lift circulation tube (201) bottom is open, and top seal is cut side, top and is provided with multiple pod apertures (202); In reaction tank (100), catalyzer, water and gas are subject to gas stripping fast to upper reaches in air lift circulation tube (201) inside, pod apertures (202) water conservancy diversion through being located at gas circulating tube (201) upper side turns to, major part water-band moves micro-bubble to dirty, catalyzer moves downward simultaneously, water again enters thrust-augmenting nozzle (210) through air lift thrust-augmenting nozzle (201) bottom and upwards flows, and realizes air lift circulation; Catalyst sedimentation is to reaction tank (100) bottom, the catalyzer water conservancy diversion skewed slot (105) being located at reaction tank (100) bottom flows to air lift circulation tube (201) bottom, again to upper reaches under the effect of air lift cycling stream, realize iterative cycles; Air pocket is up gradually, discharges through exhaust port (103); Small part flows through to upper reaches after the water of pod apertures (202), and continues to react with residue ozone, finally discharges through water outlet (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758516.2A CN104386801A (en) | 2014-12-12 | 2014-12-12 | Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758516.2A CN104386801A (en) | 2014-12-12 | 2014-12-12 | Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN104386801A true CN104386801A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410758516.2A Pending CN104386801A (en) | 2014-12-12 | 2014-12-12 | Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method |
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| Country | Link |
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| CN (1) | CN104386801A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016446A (en) * | 2015-08-10 | 2015-11-04 | 北京格兰特膜分离设备有限公司 | Gas stripping circulation three-phase reaction device and sewage treatment method |
| CN105152304A (en) * | 2015-07-24 | 2015-12-16 | 长春黄金研究院 | Reactor for treating tailing slurry or waste water by virtue of ozone method |
| CN110272113A (en) * | 2019-07-18 | 2019-09-24 | 上海明诺环境科技有限公司 | A kind of internal-circulation ozone catalysis oxidation sewage-treatment plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2432483A1 (en) * | 1978-08-02 | 1980-02-29 | Rhone Poulenc Ind | Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed |
| US6267878B1 (en) * | 1997-08-20 | 2001-07-31 | Air Liquide Sante (International) | Apparatus for the treatment of water by injection of ozone and carbon dioxide |
| CN2839261Y (en) * | 2005-10-28 | 2006-11-22 | 华南理工大学 | Arrangement for aerating biological filtering tank coupling ozone oxidation treating petrochemical sewage |
| CN102190365A (en) * | 2011-05-18 | 2011-09-21 | 宁波永峰环保工程科技有限公司 | Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof |
| CN204281399U (en) * | 2014-12-12 | 2015-04-22 | 北京格兰特膜分离设备有限公司 | Air lift circulation ozone catalytic oxidation reaction device |
-
2014
- 2014-12-12 CN CN201410758516.2A patent/CN104386801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2432483A1 (en) * | 1978-08-02 | 1980-02-29 | Rhone Poulenc Ind | Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed |
| US6267878B1 (en) * | 1997-08-20 | 2001-07-31 | Air Liquide Sante (International) | Apparatus for the treatment of water by injection of ozone and carbon dioxide |
| CN2839261Y (en) * | 2005-10-28 | 2006-11-22 | 华南理工大学 | Arrangement for aerating biological filtering tank coupling ozone oxidation treating petrochemical sewage |
| CN102190365A (en) * | 2011-05-18 | 2011-09-21 | 宁波永峰环保工程科技有限公司 | Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof |
| CN204281399U (en) * | 2014-12-12 | 2015-04-22 | 北京格兰特膜分离设备有限公司 | Air lift circulation ozone catalytic oxidation reaction device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152304A (en) * | 2015-07-24 | 2015-12-16 | 长春黄金研究院 | Reactor for treating tailing slurry or waste water by virtue of ozone method |
| CN105016446A (en) * | 2015-08-10 | 2015-11-04 | 北京格兰特膜分离设备有限公司 | Gas stripping circulation three-phase reaction device and sewage treatment method |
| CN110272113A (en) * | 2019-07-18 | 2019-09-24 | 上海明诺环境科技有限公司 | A kind of internal-circulation ozone catalysis oxidation sewage-treatment plant |
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| CB02 | Change of applicant information |
Address after: 2 Xibinhe Road, Miyun County, Beijing, 100102 Applicant after: Huazi Grant Environmental Protection Technology (Beijing) Co.,Ltd. Address before: 2 Xibinhe Road, Miyun County, Beijing, 100102 Applicant before: BEIJING GRANT MEMBRANE SEPARATION EQUIPMENT Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |
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| WD01 | Invention patent application deemed withdrawn after publication |