CN100515963C - Negative-pressure micro-bubble ozone casting water treating method - Google Patents
Negative-pressure micro-bubble ozone casting water treating method Download PDFInfo
- Publication number
- CN100515963C CN100515963C CNB2007100721005A CN200710072100A CN100515963C CN 100515963 C CN100515963 C CN 100515963C CN B2007100721005 A CNB2007100721005 A CN B2007100721005A CN 200710072100 A CN200710072100 A CN 200710072100A CN 100515963 C CN100515963 C CN 100515963C
- Authority
- CN
- China
- Prior art keywords
- ozone
- water
- bubble
- reactor
- negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A negative pressure microbubble ozonized water method relates to a water treatment method and overcomes the problem of that the ozonizer has a large ozone output, the pressure is large, the reactor has a high effective depth, the compressor has a large load, and consequently the power consumption is large and the cost is high, which are caused by the lower gas solution efficiency and the lower ozone utilization ratio of the present ozone oxidation water treatment method. In the present invention, ozone enters into the reactor in an ultramicro bubble gas-water mixed liquor fashion by adopting a negative pressure adding method cooperating with a bubble shearing-machine and a high efficiency gas distributor, and completes the oxidation removing of the water contaminant in the reactor; wherein the ozone adding quantity is 0.5~800 mg/l water, the contact time between ozone and water is 5~100 minutes, the water surface height is 0.8~6 m, and the high efficiency water distributor is arranged in a three layers fashion. The method of the present invention can obviously improve the ozone gas solution efficiency and the ozone utilization ratio, reduce the height of the reactor, and reduce the requirement for the output and the pressure of the ozonizer, so as to reduce the cost.
Description
Technical field
The present invention relates to a kind of water treatment method.Be specifically related to a kind of by producing the ultramicro air bubble mode is efficiently dissolved in ozone in water ozone oxidation depollution method.
Background technology
Ozonation technology is to utilize in the strong oxidation capacity oxygenolysis water of ozone the part readily oxidizable substance to remove the traditional water technology that pollutes, used in Dutch water factory early than 1893, be widely used in water treatment field at present at home and abroad, the domestic example that also has ozone to be applied to produce.In actual applications, adopt the mode of traditional micropore gas distribution, the molten gas efficient of ozone, utilising efficiency are low more, and ozone concentration in water is difficult to effective raising.For improving the molten gas efficient of ozone, strengthen the reactor available depth usually, be generally 5.5 meters～7.5 meters, under bigger pressure condition, the molten gas efficient of ozone is improved to some extent, but in this case, adding of ozone gas needs to consume lot of energy, directly increased processing cost.Has developed into below 1 micron in traditional its aperture of micropore gas pipe, formed bubble is generally but all greater than the hundreds of micron, even above 1 millimeter, its reason is because the gas column that produces by the micropore gas pipe mainly isolates by gas table surface tension and the faint turbulent flow of liquid on the one hand, become sphere after the gas column fracture, diameter is just bigger.On the other hand, the spacing of adjacent gas column is very little, and gas column is counted mm distance outside gas pipe just be enough to converge.The bubble formation mechanism of tradition micropore gas pipe causes the bubble of its generation bigger, and molten gas efficient is low, and ozone utilization rate is low, not only the ability need of ozonizer system ozone is strengthened, and also can strengthen the reactor depth of water, increases the air compressor machine load.Above several respects cause ozone Oxidation Treatment method power consumption to increase, and processing cost raises.
Summary of the invention
The objective of the invention is in order to solve the method that has ozone Oxidation Treatment water now because molten gas efficient is low and ozone utilization rate is low, and need ozonizer system ozone output big and pressure is big, reactor available depth height, the air compressor machine load is big, thereby cause current consumption big, the problem that cost is high provides a kind of method of negative-pressure micro-bubble ozone casting water treating.The present invention is applicable to contaminated drinking water resource, treatment of Organic Wastewater, is particularly useful for handling containing the former water of Persistent organic pollutants, as pharmacy waste water, dyeing waste water.The present invention can significantly improve the speed of reaction of the molten gas efficient of ozone, utilising efficiency and ozone and pollutent, has reduced ozone preparation system energy consumption.The invention is characterized in that ozone adopts negative pressure to add, cooperate bubble shear and efficient distribution device to enter reaction unit, in reaction unit, finish oxidation removal effect water pollutant with the form of ultramicro air bubble air water mixed solution by force (forcing) pump.
The step of the inventive method treating water method is as follows: adopt the negative pressure addition method that ozone is added in the pending water, ozone mixes in force (forcing) pump with the mixed solution of water, mixing time is 1～3S, pass through the bubble shear again, part ozone dissolves in the water, the air water mixed solution of ozone and water enters reactor by efficient gas pipe, and ozone is finished the oxidation removal to organic pollutant in reactor; Ozone dosage 0.5～800 mg/litre water, the air water mixed solution of ozone and water residence time in bubble shear and efficient gas pipe is 0.5～50 millisecond, ozone and water duration of contact are 5～100 minutes, and the height of the water surface is 0.8 meter～6 meters, and efficient gas pipe is by one to three layer of layout.
Among the present invention, ozone adopts the negative pressure dosing method, adds before force (forcing) pump by water sprayer, ozone and water are in force (forcing) pump after the high-speed mixing, enter the bubble shear, part ozone dissolves in the water, and not dissolving part enters reactor with microvesicle air water mixed solution form by efficient distribution device.Owing to adopt negative pressure to add, therefore do not need air pressurized equipment that very big pressure is provided, and, can collect subsequent disposal system ozone tail gas and reflux.The bubble shear that the ozone air-water mixed solution is provided with after by force (forcing) pump, in the bubble shear, produce a large amount of ultramicro air bubbles, the mean diameter of bubble can be regulated in 1～100 micrometer range, and last, the air water mixed solution of ozone and water enters reactor by efficient gas pipe.Because molten gas is finished with gas-liquid high-speed mixing and ultramicro air bubble mode, gas-liquid mass transfer efficient height, the molten gas efficient of ozone height, the ultramicro air bubble residence time in water that produces is long, can fully react with organic pollutant in the water is long-time on the one hand, the dimensional properties of ultramicro air bubble and surface property on the other hand, and improve the ozone concn that increases with molten gas efficient in the water, all can accelerate the speed of response of ozone and water pollutant.The method of the invention can be used for separately also can uniting use with other water technology to water treatment or sewage disposal.
After ultramicro air bubble enters reactor, the part bubble breaks, and produces the High Temperature High Pressure phenomenon, the High Temperature High Pressure zone that produces when microvesicle can break by it, inducing ozone decomposes the hydroxyl radical free radical that generation has the height reactive behavior rapidly, destroys organic pollutant in the water indirectly at a high speed by hydroxyl radical free radical.
(pending water is by the water inlet of reactor middle part to be divided into downflow system (pending water is by below water inlet top water outlet) reactor, reverse-flow (pending water is by top water inlet below water outlet) reactor and mixing streaming according to the water intake mode reactor, by the respectively water outlet of reactor both sides) three kinds, can select according to the water treatment field condition.
According to carrying out the pending water difference of air water blended, this technology can be divided into whole process gas-liquid mixed technology, part gas-liquid mixed technology and partial reflux gas-liquid mixed technology.Whole process gas-liquid mixed technology is that main pipe line place negative pressure adds ozone before former water force (forcing) pump, and the bubble shear is set on main pipe line behind the force (forcing) pump, and whole former water enter reactor by efficient gas pipe; Part gas-liquid mixed technology is to get partial raw water, and negative pressure adds ozone before force (forcing) pump, and the bubble shear is set behind force (forcing) pump, and the dissolved air water that this part is rich in ozone enters behind the reactor and all the other former water blended treatment process; Partial reflux gas-liquid mixed technology is that the water of getting after a part is handled refluxes, recirculation water is back to reactor by force (forcing) pump, ozone negative pressure before force (forcing) pump adds, and makes the recirculation water that is rich in ozone and microvesicle mix the treatment process that reacts with former water by efficient gas pipe.In part gas-liquid mixed technology and the partial reflux gas-liquid mixed technology, dissolved air water is 0.1～0.5: 1 with treating water water yield ratio.
Method of the present invention can significantly improve molten gas efficient of ozone and utilising efficiency, reduces height for reactor, reduces the demand to ozonizer output and pressure, thereby reduces cost of water treatment.The present invention can either use separately, also can unite use with other water technology.
Embodiment
Embodiment one: the step of the method for negative-pressure micro-bubble ozone casting water treating is as follows in the present embodiment: adopt the negative pressure addition method that ozone is added in the pending water, ozone mixes in force (forcing) pump with the mixed solution of water, mixing time is 1～3S, pass through the bubble shear again, part ozone dissolves in the water, not dissolving part enters reactor by efficient gas pipe, and ozone is finished the oxidation removal to organic pollutant in reactor; The ozone dosage is 0.5～800 mg/litre water, the air water mixed solution of ozone and water residence time in bubble shear and efficient gas pipe is 0.5～50 millisecond, ozone and water duration of contact are 5～100 minutes, the height of the water surface is 0.8 meter～6 meters, and efficient gas pipe is by one to three layer of layout.
Produce a large amount of ultramicro air bubbles behind the mixed solution of ozone and the pending water process bubble shear in the present embodiment, ozone discharges, dissolves at reactor assembly in the ultramicro air bubble mode, finishes the removal effect to water pollutant in reactor.Present embodiment is applicable to handles the former water of various water quality, particularly contains the former water of the hazardous contaminant of high stability difficult degradation.This technology can either be used to separately feed water and the processing of sewage, also can unite use with other water technologies.
Embodiment two: present embodiment and embodiment one are different is that ozone adds and adopts whole process gas-liquid mixed mode, adopts part gas-liquid mixed mode or adopt partial reflux gas-liquid mixed mode.Other is identical with embodiment one.
When adopting whole process gas-liquid mixed mode in the present embodiment, negative pressure adds before the ozone force (forcing) pump; When adopting part gas-liquid mixed mode; Ozone draws arm at pending water water inlet pipe place and utilizes force (forcing) pump to add ozone; When adopting partial reflux gas-liquid mixed mode, the internal recycle water pump is set in the reactor, handles system's water outlet place water intaking certainly, ozone adds before internal circulation pump.
Embodiment three: present embodiment and embodiment one are different is that the way of contact of pending water is the way of contact of following current, adverse current or mixed flow.Other is identical with embodiment one.
When present embodiment was the following current way of contact when pending water, pending water entered the top by the reactor below and flows out; When pending water was the counter current contact mode, pending water entered the below by the reactor top and flows out; When pending water is that pending water enters by in the middle part of the reactor when mixing the way of contact, by reactor both sides water outlet respectively up and down.Present embodiment is for the following current way of contact, and efficient gas pipe is arranged at reactor bottom, and for adverse current, the mixed flow way of contact, efficient gas pipe is arranged at the reactor middle and lower part.According to the water pollution situation, water residence time in reactor is 5～100 minutes, and height for reactor is 0.8 meter～6 meters.
Embodiment four: what present embodiment and embodiment one were different is at the middle part of reactor filler or baffle plate to be set.Other is identical with embodiment one.
The middle part of reactor is provided with filler or baffle plate is in order to control the fluidised form of water in the present embodiment.
Embodiment five: what present embodiment and embodiment one were different is on the top of reactor the bubble manifold to be set, and bubble manifold and horizontal direction angle are 15 °～60 °.Other is identical with embodiment one.
Present embodiment is provided with the bubble manifold on reactor top be in order to promote local ozone concentration.
Embodiment six: bubble manifold and horizontal direction angle are 25 °～50 ° in the present embodiment.Other is identical with embodiment five.
Embodiment seven: bubble manifold and horizontal direction angle are 45 ° in the present embodiment.Other is identical with embodiment five.
Embodiment eight: the bubble manifold is swash plate or inclined tube in the present embodiment.Other is identical with embodiment five.
Embodiment nine: the swash plate area is 1/8 to 1/2 of a reactor water-carrying section in the present embodiment.Other is identical with embodiment five.
Embodiment ten: present embodiment is provided with ozone tail gas in reactor head and collects and breaking plant.Other is identical with embodiment one.
Present embodiment is provided with that ozone tail gas is collected and breaking plant is in order to collect tail gas ozone in reactor head, and tail gas is handled by specific ozone tail gas breaking plant, prevents to enter environment.
Embodiment 11: the efficient gas pipe of present embodiment is by two to six layers of layout.Other is identical with embodiment one.
Embodiment 12: the efficient gas pipe of present embodiment is by three to five layers of layout.Other is identical with embodiment one.
Adopt following evidence effect of the present invention, particular content is as follows:
According to the method for the invention, former water enters reactor through force (forcing) pump, bubble shear, efficient water distribution (gas distribution) device, ozone adopts that negative pressure adds before force (forcing) pump, mix in the pump, enter reactor by efficient water distribution (gas distribution) device, in reactor, finish degraded, process using whole process gas-liquid mixed technology to target contaminant.Comparative group is selected the reactor of traditional supporting micro-hole aerator of ozonizer.
With phenol is target contaminant, adds the ozone mode with conventional micro-hole aerator and the described negative pressure microvesicle of this patent system respectively and add ozone in reactor, make its at room temperature with phenol reactant, relatively two kinds of methods are removed the effect of phenol.Initial phenol concentration: 2.99mg/L, ozone dosage: 300mg/h, gas flow: 0.6L/min, reaction times: 5min.Test-results is referring to table 1.
Table 1:
| Initial value | Adopt the described technology of this patent | Adopt traditional micro-pore aeration technology | |
| Phenol concentration (mg/L) | 2.99 | 0.76 | 2.08 |
| Clearance (%) | - | 74.58 | 30.43 |
The result shows, adopts the described technology of this patent, and the phenol clearance can reach 74.58%, only is 30.43% and adopt the clearance of phenol in the reactor of traditional micro porous aeration head, and the described technology of this patent obviously is better than traditional micro-pore aeration mode.
Claims (8)
1, a kind of method of negative-pressure micro-bubble ozone casting water treating, the step that it is characterized in that this method is as follows: adopt the negative pressure addition method that ozone is added in the pending water, ozone mixes in force (forcing) pump with the mixed solution of water, mixing time is 1～3S, pass through the bubble shear again, part ozone dissolves in the water, and the air water mixed solution of ozone and water enters reactor by efficient gas pipe, and ozone is finished the oxidation removal to organic pollutant in reactor; The ozone dosage is 0.5～800 mg/litre water, the air water mixed solution of ozone and water residence time in bubble shear and efficient gas pipe is 0.5～50 millisecond, ozone and water duration of contact are 5～100 minutes, the water height is 0.8 meter～6 meters in the reactor, and efficient gas pipe is by one to three layer of layout.
2, the method for negative-pressure micro-bubble ozone casting water treating according to claim 1 is characterized in that ozone adds whole process gas-liquid mixed mode, employing part gas-liquid mixed mode or the employing partial reflux gas-liquid mixed mode of adopting.
3, the method for negative-pressure micro-bubble ozone casting water treating according to claim 1, the way of contact that it is characterized in that pending water is the way of contact of following current, adverse current or mixed flow.
4, the method for negative-pressure micro-bubble ozone casting water treating according to claim 1 is characterized in that at the middle part of reactor filler or baffle plate being set.
5, the method for negative-pressure micro-bubble ozone casting water treating according to claim 1 is characterized in that on the top of reactor the bubble manifold being set, and bubble manifold and horizontal direction angle are 15 °～60 °.
6, the method for negative-pressure micro-bubble ozone casting water treating according to claim 5 is characterized in that bubble manifold and horizontal direction angle are 25 °～50 °.
7, the method for negative-pressure micro-bubble ozone casting water treating according to claim 5 is characterized in that the bubble manifold is a swash plate, and the swash plate area is 1/8 to 1/2 of a reactor water-carrying section.
8, the method for negative-pressure micro-bubble ozone casting water treating according to claim 1 is characterized in that in reactor head the ozone tail gas collection device being set, and the rear end is established the tail gas breaking plant and handled tail gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100721005A CN100515963C (en) | 2007-04-25 | 2007-04-25 | Negative-pressure micro-bubble ozone casting water treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100721005A CN100515963C (en) | 2007-04-25 | 2007-04-25 | Negative-pressure micro-bubble ozone casting water treating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101037256A CN101037256A (en) | 2007-09-19 |
| CN100515963C true CN100515963C (en) | 2009-07-22 |
Family
ID=38888462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100721005A Expired - Fee Related CN100515963C (en) | 2007-04-25 | 2007-04-25 | Negative-pressure micro-bubble ozone casting water treating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100515963C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266739B (en) * | 2011-06-20 | 2013-06-19 | 广东佳德环保科技有限公司 | Process for realizing oxygen and free radical liquid-phase high-efficiency mass transfer by utilizing micro-foams |
| CN103145260A (en) * | 2013-03-22 | 2013-06-12 | 王召元 | Variable frequency resonance nano-foam oxygen-increasing generator |
| CN103819019B (en) * | 2014-02-13 | 2015-05-13 | 北京环利科环境工程技术有限公司 | Method for classification oxidation treatment on reverse osmosis (RO) thick water |
| CN105836872B (en) * | 2016-05-20 | 2018-12-25 | 泸州市聚源电力设备有限公司 | The corona plasma activation method of water body ozone microbubble mass-transfer efficiency can be improved |
| CN110479125B (en) * | 2019-09-03 | 2022-05-10 | 梁荷 | Overpressure aeration device and application |
| CN114380385A (en) * | 2022-01-21 | 2022-04-22 | 长沙市森蓝环境工程有限公司 | Sewage treatment device and method |
-
2007
- 2007-04-25 CN CNB2007100721005A patent/CN100515963C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101037256A (en) | 2007-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100515963C (en) | Negative-pressure micro-bubble ozone casting water treating method | |
| CN100544808C (en) | A kind of method and apparatus of shooting flow film-bioreactor | |
| CN101781036A (en) | Equipment and method for treating nondegradable wastewater by utilizing catalytic oxidation of ozone | |
| CN209507714U (en) | A kind of ozone oxidation reaction device | |
| CN208561948U (en) | A kind of organic wastewater catalytic ozonation processing system | |
| CN109851025A (en) | A kind of device and method of ozone/hydrogen peroxide solution advanced oxidation indegradable industrial effluent | |
| CN101468862A (en) | High purification treatment system for dyeing wastewater | |
| WO2022143015A1 (en) | Micro-bubble pressurized circulating ozone catalytic oxidation reactor and method for treating waste water | |
| WO2023082818A1 (en) | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method | |
| CN106495359A (en) | A kind of highly difficult advanced waste treatment apparatus and method | |
| CN106365348B (en) | Fenton synergistic ozone fluidization catalytic oxidation wastewater treatment device and wastewater treatment method thereof | |
| CN102491510B (en) | Membrane up-flow aerobic bioreactor (MUAR) | |
| CN109607745A (en) | Catalytic ozonation processing system and catalysed oxidation processes and application | |
| CN213977104U (en) | Energy-efficient fenton fluidized bed | |
| CN213834834U (en) | Deep decolorization and purification system for waste water generated by brewing Maotai-flavor liquor | |
| WO2023140319A1 (en) | Industrial wastewater treatment system, use for industrial wastewater treatment system, industrial wastewater treatment method, and wastewater treatment process | |
| CN214829265U (en) | Microbubble supercharging circulation ozone catalytic oxidation reaction device | |
| CN116002911A (en) | Combined ozone catalytic oxidation water purification device and raw water purification method | |
| CN206109157U (en) | Fenton is ozone treatment waste water device in coordination | |
| CN206188490U (en) | Handle high concentration organic waste water's device | |
| CN106007176B (en) | A kind of high temperature, high rigidity, the sewage disposal system and technique of high COD, ammonia nitrogen | |
| CN214781329U (en) | Micro-nano MBBR small-size integrated rural domestic sewage treatment equipment | |
| CN203946939U (en) | The ozone Oxidation Treatment device of waste water | |
| CN102180544A (en) | Urban sewage intermittent biological treatment device and treatment method thereof | |
| CN102190378A (en) | Method and device for treating wastewater through air flotation process utilizing microbial coagulant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Raoping Wangda Hippo Electronics Co., Ltd. Assignor: Harbin Institute of Technology Contract record no.: 2010440000794 Denomination of invention: Negative-pressure micro-bubble ozone casting water treating method Granted publication date: 20090722 License type: Exclusive License Open date: 20070919 Record date: 20100612 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20130425 |