CN101602550A - The submerged type bubble-free high-efficiency oxygenated water body restoration system - Google Patents

The submerged type bubble-free high-efficiency oxygenated water body restoration system Download PDF

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Publication number
CN101602550A
CN101602550A CNA2009100549978A CN200910054997A CN101602550A CN 101602550 A CN101602550 A CN 101602550A CN A2009100549978 A CNA2009100549978 A CN A2009100549978A CN 200910054997 A CN200910054997 A CN 200910054997A CN 101602550 A CN101602550 A CN 101602550A
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oxygen
water
dissolved oxygen
efficiency
jar
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CNA2009100549978A
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李建华
陈雪雯
张选军
邹丽敏
姜德刚
张亚雷
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Tongji University
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Tongji University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

A kind of submerged type bubble-free high-efficiency oxygenated water body restoration system, it comprises oxygen system, dissolved oxygen system, this oxygen system discharges high-concentration oxygen dissolving water to the water liquid oxygenation of dissolved oxygen system by the dissolved oxygen system in water body.Described oxygen system, it comprises air compressor machine, oxygen generator, link to each other successively and the purity that the oxygen generator produces is higher than 90% oxygen delivery dissolved oxygen jar by pipeline to the dissolved oxygen system, the dissolved oxygen system also comprises submersible pump, its fluming water to dissolved oxygen jar and oxygen does not have bubble and dissolves each other and obtain high-concentration oxygen dissolving water, is discharged into by the dissolved oxygen jar and realizes no bubble oxygenation in the water body.Native system can also be provided with Controlling System and control it and start oxygenation voluntarily, perhaps further sets up Monitoring systems is regulated the control oxygenation in real time according to every index keying and flow.The present invention has characteristics such as less energy-consumption, high-level efficiency, can effectively reduce the nitrogen and phosphorus content in the source water, and then suppresses the outburst of wawter bloom.

Description

The submerged type bubble-free high-efficiency oxygenated water body restoration system
Technical field
The invention belongs to water treatment field, relate to contaminated water body is repaired aerating apparatus in the industry.
Background technology
Fast development and quickening of urbanization process along with China's industrial or agricultural, pollutant discharge amount increases day by day in trade effluent, sanitary sewage, the agricultural irrigation waste water, after nitrogen wherein, phosphorus nutrition salt enter the waters of relative closure, under solar radiation, very easily cause body eutrophication, damage for the utilization of water resources.Blue-green alga bloom mostly occurred in the 5-8 month in spring end to summer, and obvious seasonal is arranged.Temperature, illumination, nutrition etc. all are the factors of influence of its growth.When water temperature more than 20 ℃, body eutrophication, higher pH, suitable illumination, blue-green algae just can breed in a large number, forms wawter bloom.Time one is long, the frond mass mortality, and decomposition gives out one unpleasant foul smell, and polluted air consumes oxygen in water simultaneously.In addition, blue-green algae has intracellular toxin, when the blue-green algae cell is corrupt decompose after, cyanophycean toxin is released in the water body, can cause fish kill, and cyanophycean toxin is the intensive carcinogenic substance, is directly threatening human beings'health.
The waterworks of China all is traditional water preparation process more than 90%, can only effectively handle physics, microbial contamination, can't carry out advanced treatment to biotoxin and chemical pollution.Content can be up to 28-65 μ g/l in the toxogen water that blue-green alga bloom produces.People are to containing the most effective way of evading of Microcystin in the tap water, at present general in the world is the coupling of granulated active carbon and membrane technique.The above-mentioned technology of utilization in water treatment system, running cost is extremely high, and a cover system reaches more than ten million, and common water factory is difficult to have.It is then unsatisfactory to drop into the Powdered Activated Carbon removal effect in tap water, and the algae toxin all once detected in some water factories, have in addition up to 0.64 μ g/1, this can produce great harm to infant, has to cause people's attention.One of effective means of eutrophication water processing at present is to adopt biochemical process, by fill the into a large amount of microorganism of oxygen cultivation of capacity in sewage, makes the pollutent in the polluted-water obtain degrading and removing.
Summary of the invention
The objective of the invention is at existing various artificial aeration's equipment watercourse aeration function singlenesses, energy consumption height, big, the difficult problem of recovering the polluted-water self-purification function of power waste, a kind of submerged type bubble-free high-efficiency oxygenated water body restoration system is provided, it is suitable for samll cities and towns' contaminated water source water body reparation, have characteristics such as less energy-consumption, high-level efficiency, can effectively reduce the nitrogen and phosphorus content in the source water, progressively recover water ecosystem.
For reaching above purpose, solution of the present invention is:
Based on Henry's law as can be known, at a certain temperature, the equilibrium partial pressure of the solubleness of gas in liquid and this gas is directly proportional.
pB＝kxB
PB is the vapor partial pressure of solute in the thin solution in the formula; XB is the amount of substance mark of solute; K is a Henry's constant.From Henry's law as can be known, effectively improve the vapor partial pressure of oxygen, the solubleness of raising oxygen in water that is directly proportional will be arranged.Improve the vapor partial pressure of oxygen, can go from two aspects to solve, the one, improve waterborne pressure, the 2nd, the per-cent of oxygen in the raising air.
The present invention adopts the generation of PSA oxygen generator to contain oxygen purity above the air more than 90%, thereby improves the vapor partial pressure of oxygen.Further, the oxygen purity that contains that the PSA oxygen generator produces is surpassed the dissolved oxygen jar that the air more than 90% is transported to, improve the pressure in the dissolved oxygen jar, reach the vapor partial pressure that improves oxygen by air compressor machine.Simultaneously, the dissolved oxygen jar is set at certain depth under water, makes its low temperature that can utilize hydraulic pressure and profundal zone dissolved oxygen efficiently in water.By submersible pump the bed mud overlying water is pressed into the dissolved oxygen jar, forms the thinner globule by nozzle when water enters the dissolved oxygen jar, dissolving each other with the high pressure high-concentration oxygen that enters the dissolved oxygen jar forms high-concentration oxygen dissolving water, realizes no bubble dissolved oxygen.According to the horizontal proliferation principle, high-concentration oxygen dissolving water be transported to behind the water body level to around diffusion, realize that under the situation that does not cause the water body turbulent fluctuation water body is not on every side had the bubble oxygenation.Can also control the operation of PSA oxygen generator, air compressor machine, submersible pump by on-line oxidation reduction potential instrument, online thermometer, online dissolved oxygen meter, magnetic flow meter, dissolving vessel tensimeter, dissolving vessel water level gauge, high-effect continuous recording instrument by central controller, realize that whole system repairs the water surrounding of polluting.
A kind of high-efficiency oxygenated body restoration system, it comprises oxygen system, dissolved oxygen system, this oxygen system discharges high-concentration oxygen dissolving water to the water liquid oxygenation of dissolved oxygen system by the dissolved oxygen system in water body.
Described oxygen system, it comprises air compressor machine, oxygen generator, links to each other successively and is connected to the dissolved oxygen system to its oxygenation by pipeline.
The oxygen purity that described oxygen generator produces is higher than 90%.
Described dissolved oxygen system comprises dissolved oxygen jar, submersible pump, and submersible pump extracts former water and is delivered to high-purity oxygen that dissolved oxygen jar and oxygen system be conveyed into the dissolved oxygen jar and dissolves each other and form high-concentration oxygen dissolving water, and discharges in water body.
Described dissolved oxygen jar places in the water body, and is positioned at certain depth under water.
It also comprises Controlling System, and control oxygen system automatic transport oxygen discharges high-concentration oxygen dissolving water to the dissolved oxygen system and to water body.
It also comprises Monitoring systems, and the status information that Monitoring systems is monitored dissolved oxygen system and water body in real time feeds back to Controlling System, and whether Controlling System gets the control in real time of feedback information control oxygen system to the oxygenation of dissolved oxygen system according to Monitoring systems.
Described Controlling System comprises registering instrument, central controller, total ammeter, and registering instrument is collected every index of Monitoring systems monitoring, and feeds back to keying and the flow of central controller controls to the water body oxygenation, total ammeter register system power consumption; Described Monitoring systems comprises tensimeter, water level gauge, import dissolved oxygen meter, under meter, outlet dissolved oxygen meter, thermometer, potentiometer, this tensimeter, water level gauge place its interior pressure and water level of monitoring on the dissolved oxygen jar, this import dissolved oxygen meter places the water sucking mouth monitor oxygen level of submersible pump, this under meter, outlet dissolved oxygen meter place the water port of dissolved oxygen jar to monitor the flow and the concentration of the high-concentration oxygen dissolving water of its release, this thermometer, potentiometer monitoring bottom water temperature.
Owing to adopted such scheme, the present invention to have following characteristics:
1, the present invention is based under the Henry's law and to adopt high pressure that high-concentration oxygen is dissolved into to obtain high density dissolved oxygen water in the water, high density dissolved oxygen water is realized horizontal proliferation in water body, under the situation that does not cause the water body turbulent fluctuation, effectively realize the efficient oxygenation of no bubble, prevent and treat the polluted water body alga eruption effectively, repair water body and reach it and have self-purification function;
2, when the dissolved oxygen of online dissolved oxygen instrument indication water sucking mouth water body is lower than 1.0ppm, central controller start signal output air compressor machine, PSA oxygen generator and submersible pump, equipment begins that water body is not had the bubble oxygenation, when online dissolved oxygen instrument indication is higher than 7.0ppm at the dissolved oxygen of water sucking mouth water body, or during the temperature difference≤2 of online temperature indication water sucking mouth and TNE UPPER SEA TEMPERATURE more than its 1m height ℃, the central controller output signal is closed air compressor machine, PSA oxygen generator and submersible pump, realize operation fully automatically, handling cost is low, less energy consumption.
3, submersible pump water-in and high density dissolved oxygen water are released in same level height at water body, guarantee high density dissolved oxygen water realization horizontal proliferation like this, oxygen is transported to from equipment zone far away, makes the area of the area of oxygenation water body, realized oxygenation efficiently considerably beyond equipment.
4, this equipment body partly is placed in the underwater, needs the land occupation area very little, compact construction, and volume is little, is easy to transportation and installs.
Description of drawings
Fig. 1 is submerged type bubble-free high-efficiency oxygenated water body restoration system control synoptic diagram.
Fig. 2 is that each assembly of submerged type bubble-free high-efficiency oxygenated water body restoration system is implemented synoptic diagram.
Fig. 3 is oxygenation operation of the present invention water body oxidation effect figure after 9 days for water body adopts.
The pollutent of Fig. 4 oxygenation of the present invention front and back for water body adopts changes contrast.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
Oxygenated water body restoration system design of the present invention is divided into the two parts, and as Fig. 1 and Fig. 2, a part is oxygen system and the Controlling System on horizontal plane, and another part is dissolved oxygen system and the Monitoring systems under horizontal plane.Above-water oxygen system, is placed on the dike 26 with PSA oxygen generator 13 and be connected oxygen conveying pipe 14 and form by air 11, air compressor machine 12; Controlling System is by high-effect continuous recording instrument 1, central controller 7, the signal data line 2 of total ammeter 4 and detection signal output, the signal data line 3,10 of rate of discharge, the signal data line 5,6 that is used for operation signal is formed, and Controlling System is placed on the dike 26.Air compressor machine 12 adopts quiet oilless air compressor, and pressure switch is set, and pressure range is 0.5-0.8MPa, and voltage is 220V/50HZ, and maximum gas production rate is 150L/min, and rated output is 1.1Kw.The model of PSA oxygen generator 13 is OW-50TB, and the oxygen work output is 20-30L/min, and power is 100w, and voltage is 220V/50HZ.Connect oxygen conveying pipe 14 and adopt stainless steel tube, caliber is 25mm, is connected to be threaded.The model of high-effect continuous recording instrument 1 is Memo graph S RSG12, as an incorporate observed value acquisition system, Memo-graph shows signal, monitors setting point, measurement point, the storage internal data is also deposited current procedural information variable on the disk of standard.Central controller 7 adopts the control mode operation of PLC+ upper computer, and the PLC controlling center is selected siemens S7-300 system for use, and upper computer selecting is ground magnificent industrial computer.It is the AC ammeter of DMB4-H-COS that total ammeter 4 is selected model for use.
The dissolved oxygen system of underwater portion is made up of submersible pump 15, dissolved oxygen jar 16, original water inlet place 22 and high-concentration oxygen dissolving water release place 24 etc.; Monitoring systems is made up of dissolving vessel tensimeter 8, dissolving vessel water level gauge 9, ingress's dissolved oxygen meter 17, magnetic flow meter 18, outlet dissolved oxygen meter 19, thermometer 20, redox potential instrument 21.Submersible pump 15 rated flows are 30m 3/ h, motor rated power are 3.0kw, adopt the mobile hard tube of φ 75 to install, and connect by coupling bend.The height of dissolving 16 is 1m, and diameter is 1m, and material is 316 stainless steels, and a tensimeter 8 and water level gauge 9 are installed on tank body simultaneously, and the tensimeter model is Y-100,0-1.6MPa, 1.5 grades, G1/2A radially.It is LDO+SC100 that ingress's dissolved oxygen meter 17 adopts model with outlet dissolved oxygen meter 19, and the dissolved oxygen useful range is 0.00～20.00mg/L (ppm), and degree of protection is IP68.The useful range of magnetic flow meter 18 is 18～50m 3/ h, operating pressure is 1.0～2.5MPa, nominal diameter is DN75.Thermometer 20 is included in the redox potential instrument 21, and the redox potential instrument is a model SC100+ digital differential transmitter, and useful range is-2000～+ 2000mv/-5～70 ℃, degree of protection is IP68.
Air 11 presses down in the effect of air compressor 12 and is reduced to PSA pure oxygen generator 13, produce purity by PSA pure oxygen generator 13 and be higher than 90% oxygen, under the pressure continuation effect of air compressor 12, purity is higher than 90% oxygen and is transported to oxygen dissolution jar 16 by oxygen conveying pipe 14.Former water at original water inlet place 22 is transported to oxygen dissolution jar 16 by submersible pump 15, enter oxygen dissolution jar 16 backs and form the thinner globule by nozzle, dissolve each other with the high pressure high-concentration oxygen that enters the dissolved oxygen jar and to form high-concentration oxygen dissolving water, realize no bubble dissolved oxygen, obtained the dissolved oxygen water of ultrahigh concentration.By the concentration of the high-purity oxygen 14 in dissolving vessel tensimeter 8 and the dissolving vessel water level gauge 9 monitoring oxygen dissolution jars 16 and the water level of high-purity oxygen dissolving water, with of the monitoring of realization system to oxidation effect in the oxygen dissolution jar 16.When the reading that shows when dissolving vessel tensimeter 8 surpasses the safe pressure scope that oxygen dissolution jar 16 can bear, central controller 7 is by signal data line 5 and the output of 6 control signals, close air compressor machine 12, PSA pure oxygen generator 13, submersible pump 15, stop not have the bubble oxygenation.When dissolving vessel water level gauge 9 showed that being full of high-concentration oxygen in the oxygen dissolution jar 16 dissolves water, central controller 7 cut out air compressor machine 12, PSA pure oxygen generator 13, submersible pump 15 by signal data line 5 and the output of 6 control signals, stops not have the bubble oxygenation.High-concentration oxygen dissolving water is discharged in the water body at 24 places, and pass through outlet magnetic flow meter 18 and export flow and the concentration of dissolved oxygen instrument 19 monitorings from the high density dissolved oxygen water of dissolved oxygen jar 16 releases, the flow of high density dissolved oxygen water feeds back to central controller 7 by rate of discharge signal data line 10.According to the data that outlet dissolved oxygen instrument 19 is measured, the concentration value of oxygen in water is the highest can to reach 112mg/L.The dissolved oxygen water of ultrahigh concentration is discharged in the water body at high-concentration oxygen dissolving water release place 24 places, and the same layer water body that contains the lower concentration dissolved oxygen or do not contain dissolved oxygen do not had the bubble oxygenation, obtains the high density dissolved oxygen water layer 23 that just forms at bottom.21 pairs of bottom aquatic monitorings of on-line monitoring instrument temperature instrument 20, redox potential instrument of bottom, simultaneously signal is outputed to high-effect continuous recording instrument 1, high-effect continuous recording instrument 1 outputs to central controller 7 by signal data line 2,3 with data in record data.Central controller 7 is according to the height and the temperature of the redox potential of bottom dissolved oxygen water body, by the flow of rate of discharge signal data line 10 control exit high-concentration oxygen dissolving water.When the water sucking mouth dissolved oxygen of ingress's dissolved oxygen meter 17 measurements was lower than 1.0ppm, central controller 7 started air compressor machine 12, PSA pure oxygen generator 13, submersible pump 15 by signal data line 5 and the output of 6 control signals, begins not have the bubble oxygenation.When the water sucking mouth dissolved oxygen of bottom ingress dissolved oxygen meter 17 measurements was higher than 7.0ppm, central controller 7 cut out air compressor machine 12, PSA pure oxygen generator 13, submersible pump 15 by signal data line 5 and the output of 6 control signals, stops not have the bubble oxygenation.When the temperature difference≤2 of online thermometer 20 indication water sucking mouths and its TNE UPPER SEA TEMPERATURE more than 1m height ℃, high-effect continuous recording instrument 1 by signal data line 2 with message feedback in central controller 7, central controller 7 is by signal data line 5 and the output of 6 control signals, close air compressor machine 12, PSA pure oxygen generator 13, submersible pump 15, stop not have the bubble oxygenation.Ingress's dissolved oxygen meter 17, magnetic flow meter 18, outlet dissolved oxygen instrument 19 are transported to high-effect continuous recording instrument 1 with data monitored, high-effect continuous recording instrument 1 by signal data line 2,3 with message feedback in central controller 7, be used for analyzing the oxidation effect of whole system.Total ammeter 4 is noted the current consumption of whole system, in order to the energy consumption situation of analytical system, thereby instructs the operational management of whole system.
Can see that from Fig. 3,4 when water body adopted the operation of submerged type bubble-free high-efficiency oxygenated water body restoration system, the dissolved oxygen of water bottom altered a great deal, the highlyest can reach 20mg/L.As seen from Figure 4, move after 9 days, obvious variation has all taken place in the pollutent of water body, has reached the target of repairing body eutrophication.
The heavy water type of table 1 different depths does not have the effect comparison of gas bubble oxygen
Figure A20091005499700061
Test condition: water pump pushing quantity 30m3/h, oxygen supply purity: 93%, oxygen supply ratio: 5%V (oxygen)/V (water)
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.

Claims (8)

1, a kind of high-efficiency oxygenated body restoration system is characterized in that: it comprises oxygen system, dissolved oxygen system, and this oxygen system discharges high-concentration oxygen dissolving water to the water liquid oxygenation of dissolved oxygen system by the dissolved oxygen system in water body.
2, high-efficiency oxygenated body restoration system as claimed in claim 1 is characterized in that: described oxygen system, it comprises air compressor machine, oxygen generator, links to each other successively and is connected to the dissolved oxygen system to its oxygenation by pipeline.
3, high-efficiency oxygenated body restoration system as claimed in claim 2 is characterized in that: the oxygen purity that described oxygen generator produces is higher than 90%.
4, high-efficiency oxygenated body restoration system as claimed in claim 1, it is characterized in that: described dissolved oxygen system comprises dissolved oxygen jar, submersible pump, submersible pump extracts former water and is delivered to high-purity oxygen that dissolved oxygen jar and oxygen system be conveyed into the dissolved oxygen jar and dissolves each other and form high-concentration oxygen dissolving water, and discharges in water body.
5, high-efficiency oxygenated body restoration system as claimed in claim 4 is characterized in that: described dissolved oxygen jar places in the water body, and is positioned at certain depth under water.
6, high-efficiency oxygenated body restoration system as claimed in claim 1, it is characterized in that: it also comprises Controlling System, control oxygen system automatic transport oxygen discharges high-concentration oxygen dissolving water to the dissolved oxygen system and to water body.
7, high-efficiency oxygenated body restoration system as claimed in claim 6, it is characterized in that: it also comprises Monitoring systems, the status information that Monitoring systems is monitored dissolved oxygen system and water body in real time feeds back to Controlling System, and whether Controlling System gets the control in real time of feedback information control oxygen system to the oxygenation of dissolved oxygen system according to Monitoring systems.
8, high-efficiency oxygenated body restoration system as claimed in claim 7, it is characterized in that: described Controlling System comprises registering instrument, central controller, total ammeter, registering instrument is collected every index of Monitoring systems monitoring, and feed back to keying and the flow of central controller controls, total ammeter register system power consumption to the water body oxygenation; Described Monitoring systems comprises tensimeter, water level gauge, import dissolved oxygen meter, under meter, outlet dissolved oxygen meter, thermometer, potentiometer, this tensimeter, water level gauge place its interior pressure and water level of monitoring on the dissolved oxygen jar, this import dissolved oxygen meter places the water sucking mouth monitor oxygen level of submersible pump, this under meter, outlet dissolved oxygen meter place the water port of dissolved oxygen jar to monitor the flow and the concentration of the high-concentration oxygen dissolving water of its release, this thermometer, potentiometer monitoring bottom water temperature.
CNA2009100549978A 2009-07-17 2009-07-17 The submerged type bubble-free high-efficiency oxygenated water body restoration system Pending CN101602550A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120183A2 (en) * 2010-03-30 2011-10-06 Oxzo S.A. Transportable system for generating and injecting oxygen in situ for fish cages in the sea
CN104671460A (en) * 2015-01-29 2015-06-03 江苏菲力环保工程有限公司 Oxygen supply system for water body
CN107047444A (en) * 2015-10-28 2017-08-18 华中农业大学 A kind of oxygen-enriching method
CN108408880A (en) * 2018-03-14 2018-08-17 佛山市顺德区键合电子有限公司 For the high dissolved oxygen biodegradation system of sewage disposal and its treatment process
CN113264637A (en) * 2021-05-19 2021-08-17 三峡大学 Low-disturbance oxygen supply repair equipment and method for lake and reservoir bottom
CN113856505A (en) * 2021-10-14 2021-12-31 哈维(上海)环境科技有限公司 Method for feeding high-concentration oxygen-enriched solution by adopting oxygen-enriched solution feeding system
CN114409105A (en) * 2022-03-09 2022-04-29 武汉氢能与燃料电池产业技术研究院有限公司 Immersion type efficient deep water oxygenation equipment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120183A2 (en) * 2010-03-30 2011-10-06 Oxzo S.A. Transportable system for generating and injecting oxygen in situ for fish cages in the sea
WO2011120183A3 (en) * 2010-03-30 2011-11-17 Oxzo S.A. Transportable system for generating and injecting oxygen in situ for fish cages in the sea
GB2491085A (en) * 2010-03-30 2012-11-21 Oxzo S A Transportable system for generating and injecting oxygen in situ for fish cages in the sea
GB2491085B (en) * 2010-03-30 2013-11-27 Oxzo S A Portable onsite oyygen generation and injection system for fish cages in the sea
CN104671460A (en) * 2015-01-29 2015-06-03 江苏菲力环保工程有限公司 Oxygen supply system for water body
CN107047444A (en) * 2015-10-28 2017-08-18 华中农业大学 A kind of oxygen-enriching method
CN108408880A (en) * 2018-03-14 2018-08-17 佛山市顺德区键合电子有限公司 For the high dissolved oxygen biodegradation system of sewage disposal and its treatment process
CN113264637A (en) * 2021-05-19 2021-08-17 三峡大学 Low-disturbance oxygen supply repair equipment and method for lake and reservoir bottom
CN113856505A (en) * 2021-10-14 2021-12-31 哈维(上海)环境科技有限公司 Method for feeding high-concentration oxygen-enriched solution by adopting oxygen-enriched solution feeding system
CN114409105A (en) * 2022-03-09 2022-04-29 武汉氢能与燃料电池产业技术研究院有限公司 Immersion type efficient deep water oxygenation equipment

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Application publication date: 20091216