CN105753280B - Ship borne type bottom sediment prosthetic device and method - Google Patents
Ship borne type bottom sediment prosthetic device and method Download PDFInfo
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- CN105753280B CN105753280B CN201610242400.2A CN201610242400A CN105753280B CN 105753280 B CN105753280 B CN 105753280B CN 201610242400 A CN201610242400 A CN 201610242400A CN 105753280 B CN105753280 B CN 105753280B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- 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
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- Y02W10/20—Sludge processing
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- 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)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Ship borne type bottom sediment prosthetic device, prosthetic device main body are connected by pull rope with tractor tug, including bottom plate and gas deflation assembly and drain assembly on bottom plate;Gas deflation assembly includes aeration tube and multiple micro porous aeration heads, and air inlet is provided with aeration tube, and micro porous aeration head forms the pipeline of insertion with aeration tube;Drain assembly includes water pipe, and water inlet is provided with water pipe, is provided with multiple outlet pipes communicated with water pipe along length of pipe direction is transversely arranged, a vomerine tooth is connected to below each outlet pipe;It ploughs the jetting pipeline that dorsal part is internally formed one section of insertion, and the entrance of jetting pipeline communicates with outlet pipe;Delivery pipe includes water-supply-pipe and appendix, and the entrance of water-supply-pipe and appendix communicates with water inlet and air inlet respectively positioned at traction shipboard, outlet.Vomerine tooth digs the low soil in sea in tractor tug traveling process, forms suspension, gas and liquid are passed through to seabed respectively through aeration tube and water pipe, is reacted with seabed suspension, realizes the purpose that seabed is repaired.
Description
Technical field
The invention belongs to seabed marine sediments recovery technique field, is related to a kind of ship borne type bottom sediment prosthetic device
And method.
Background technology
Earth major part seabed is deposited thing covering, and the biology that bottom sediment turns into maximum in covering on the earth is inhabited
Ground.However, bottom sediment is also often the final home to return to of Lu Yuan pollution flux, common pollutant has heavy metal, organic
Pollutant and nutriment etc., these materials often produce potential threat after being accumulated in deposit, such as heavy metal and poisonous
Organic matter is difficult to be disappeared by natural process, can always accumulate and is enriched with step by step into human body by food chain, threaten the mankind
Health.Meanwhile if the nutriment such as the organic matter of enriched, nitrogen, phosphorus in bottom sediment, just it is easy to cause water body rich
Nutrient laden, and then cause seabed to form large area low-oxygen area, finally benthic ecosystems are degenerated.
With China's rapid development of economy, a large amount of land-sourced pollutants are discharged into by river, river and all kinds of sewage draining exits, discharge outlet
Marine water, immediate offshore area is caused constantly to be contaminated.It is big by physics, chemistry and the bioprocess of complexity, these pollutants
Marine ecosystems and survival and development of mankind are produced very big potential threat by more deposited thing absorption.Therefore, ocean is being administered
The pollution problem of very important bottom sediment during pollution, reparation marine ecology.
The content of the invention
It is an object of the invention to provide a kind of bottom sediment prosthetic device, by the skill such as engineering technology and biology, chemistry
Art is combined, the hazardous contaminant in transferable or conversion bottom sediment, improves the ecological environment of bottom sediment.
The technical scheme is that:Ship borne type bottom sediment prosthetic device, it is characterised in that:Including prosthetic device master
Body, pull rope and delivery pipe, prosthetic device main body are connected by pull rope with tractor tug;Prosthetic device main body includes bottom plate, and
Gas deflation assembly and drain assembly on bottom plate;
Gas deflation assembly includes aeration tube, and multiple micro porous aeration heads, aeration are provided with along aeration tube length direction is transversely arranged
Air inlet is provided with pipe, micro porous aeration head forms the pipeline of insertion, micro porous aeration head direction and traction obliquely with aeration tube
Shipping agency enters side in opposite direction;
Drain assembly includes water pipe, and water inlet is provided with water pipe, along length of pipe direction it is transversely arranged be provided with it is multiple
The outlet pipe communicated with water pipe, each outlet pipe lower section are connected to a vomerine tooth;Vomerine tooth includes plough cutting edge of a knife or a sword side and plough dorsal part, and it ploughs cutting edge of a knife or a sword side
For blade-like, towards a side of tractor tug;Its plough dorsal part be internally formed one section insertion jetting pipeline, the entrance of jetting pipeline with
Outlet pipe is communicated, and it is exported obliquely towards the side opposite with tractor tug direct of travel;
Delivery pipe includes water-supply-pipe and appendix, the entrance of water-supply-pipe and appendix positioned at traction shipboard, outlet respectively with
Water inlet and air inlet communicate.
Preferably:Aeration tube and water pipe are embedded in base plate interior, and water inlet, air inlet and micro porous aeration head extend to
The outside of bottom plate.
Preferably:Bottom plate close to the side of tractor tug be upturned it is streamlined.
Preferably:Plough cutting edge of a knife or a sword side includes one section of vertical section and one section of tilting section, and a pointed plough is formed on the bottom of tilting section
Increment.
Preferably:Water pump is configured on tractor tug and air pump, water delivery tube inlet connect with water pump, gas transmission tube inlet and air pump
Connect.
When carrying out bottom sediment reparation, tractor tug dragging prosthetic device main body travels forward;By water-supply-pipe to seabed
Convey liquid;Gas is conveyed to seabed by appendix.Liquid is the seawater containing biological reagent or chemical reagent, and gas is oxygen
Gas or ozone, improvement demand can be analyzed, to allocate the species of the reagent of input and gas according to environments such as subsea.
Beneficial effects of the present invention are:
(1) make bottom sediment fully participate in reacting, be purified, improve the anaerobic environment of bottom sediment and seawater.
Ensure that seabed marine sediments can fully participate in reaction and can be only achieved more preferable sediment remediation purpose.The design
By the double action of vomerine tooth and High-Pressure Water, sea bed surface deposit is stirred, the suspension of subrange is formed, makes deposit
Particle and harmful substance can fully react with oxygen or biological reagent, chemical reagent and reach optimum efficiency.
Seabed anoxic, desertification will influence the existence of benthon.Oxygen, oxygen-enriched table are inputted to seabed by gas deflation assembly
Layer seawater and microbubble can significantly improve the state of seabed anoxic, can administer aqueous desert, improve benthic ecosystems.
(2) it is simple and easy, periodically the bottom sediment of important sea areas can be improved.
Operation is simple for the device, and only fishing boat simply need to be transformed, the facility such as increase high-pressure hydraulic pump, air pump,
The medium input source such as biochemical reagents, ozone.The ship of different tonnages can be selected, and select according to the size in purification region
With various sizes of prosthetic device main body, by the volume, the quantity of micro porous aeration head, vomerine tooth that adjust prosthetic device main body bottom plate
Quantity can adjust the size of prosthetic device main body.It can select to be passed through different gas according to the specific ambient conditions in seabed
With it is easy, fully reacted with seabed marine sediments.With serious pollution sea-bed area can periodically be repaired, it is possible to achieve periodically repair
It is multiple.The design is especially suitable for easily outburst red tide, the marine site of green tide, by being carried out only to the ocean bottom soil of anoxic, pollution in advance
Change and repair, can effectively mitigate the influence of organic matter, prevent the generation of the disasters such as red tide, green tide.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is prosthetic device agent structure schematic diagram.
Fig. 3 is prosthetic device agent structure schematic diagram.
Fig. 4 is prosthetic device agent structure schematic diagram.
Fig. 5 is gas deflation assembly structural representation.
Fig. 6 is drain assembly structural representation.
Fig. 7 is vomerine tooth structural representation.
Wherein:1- pull ropes, 2- tractor tugs, 3- prosthetic device main bodys, 4- delivery pipes, 401- water-supply-pipes, 402- appendixs,
5- bottom plates, 6- gas deflation assemblies, 601- aeration tubes, 602- micro porous aeration heads, 603- air inlets, 7- drain assemblies, 701- water pipes,
702- water inlets, 703- outlet pipes, 704- vomerine tooths, 705- plough cutting edges of a knife or a sword side, 706- plough dorsal parts, 707- jetting pipelines, 708- water spouts,
709- ploughs cutting edge of a knife or a sword, 8- seas, 9- sea beds, 10- supports, 11- protection pipes
Embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, ship borne type bottom sediment prosthetic device, including prosthetic device main body 3, pull rope 1 and defeated
Pipe 4 is sent, prosthetic device main body is connected by pull rope 1 with tractor tug 2, below sea;Prosthetic device main body 3 includes bottom plate
5 and gas deflation assembly 6 and drain assembly 7 on bottom plate 5.Support 10 is installed, for ensuring the structure of bottom plate 5 on bottom plate 5
Strength and stability.Bottom plate 5 and support 10 are made of stainless steel, when tractor tug 2 moves, will drag prosthetic device master
Body 3 moves, and sea bed slip is close in the bottom of bottom plate 5, and bottom plate 5 is streamlined, the guarantee that is upturned close to the side of tractor tug 2
When barrier obstruction is run into sliding process, bottom plate 5 can smoothly break the barriers;The postmedian of bottom plate 5 is flat, with
The larger contact area between sea bed is obtained, bottom plate 5 is not inverted easily.
Shown in Fig. 5, gas deflation assembly 6 includes aeration tube 601, along the length direction of aeration tube 601 it is transversely arranged be provided with it is multiple
Micro porous aeration head 602, air inlet 603 is provided with aeration tube 601, each micro porous aeration head 602 communicates with aeration tube 601,
The pipeline of insertion is formed, micro porous aeration head 602 is obliquely towards the side opposite with the direct of travel of tractor tug 2.
As shown in fig. 6, drain assembly includes water pipe 701, water inlet 702 is provided with water pipe 701, along the length of water pipe 701
Direction is transversely arranged to be provided with multiple outlet pipes 703 communicated with water pipe 701, and each lower section of outlet pipe 703 is connected to a vomerine tooth
704;As shown in fig. 7, vomerine tooth 704 includes plough cutting edge of a knife or a sword side 705 and plough dorsal part 706, it is blade-like that it, which ploughs cutting edge of a knife or a sword side 705, towards tractor tug 2
A side;It ploughs the jetting pipeline 707 that dorsal part 705 is internally formed one section of insertion, entrance and the outlet pipe 703 of jetting pipeline 707
Communicate, it is exported obliquely towards the opposite side of the direct of travel of tractor tug 2;Water spout 708 is arranged on going out for jetting pipeline 707
At mouthful, water spout 708 is obliquely towards sea bed, the side in opposite direction advanced with tractor tug 2.
The direction of aeration tube 601 and water pipe 701 is perpendicular to the direction that tractor tug 2 moves, and aeration tube 601 and water pipe 701 are simultaneously
Row is arranged on bottom plate 5.The quantity of micro porous aeration head 601 and outlet pipe 703 is 12 in the present embodiment, actual application
In, the size of bottom plate 5 according to demand, can be increased, configure greater number of micro porous aeration head 601 and outlet pipe 703.Micro-pore aeration
First 601 and the arrangement mode of outlet pipe 703 be also not limited to parallel arranged.
Delivery pipe 4 includes water-supply-pipe 401 and appendix 402, and the entrance of water-supply-pipe 401 and appendix 402 is located at tractor tug 2
Side, outlet communicate with water inlet 702 and air inlet 603 respectively.During carrying out bottom sediment reparation, depending on sea bed environment
Difference, can convey the liquid such as oxygen-enriched seawater, biological reagent or chemical reagent by water-supply-pipe 401, appendix 402 convey oxygen,
The gases such as ozone, for improving environments such as subsea.Water pump and air pump are equipped with tractor tug 2, is needing to be passed through seawater to seabed
Or on the premise of air, water pump connects with the entrance of water-supply-pipe 401, extracts the oxygen-enriched air on sea;Air pump and appendix 402
Entrance connect, convey purity oxygen or oxygen-enriched air to seabed;Needing to seabed is passed through other biological reagents, chemistry tries
During the other kinds of gases such as agent, ozone, water pump or air pump are directly accessed gas medium input source.
Aeration tube 601 and water pipe 701 are embedded in inside bottom plate 5, and this structure can ensure aeration tube 601 and water pipe
701 are not influenceed by sea bottom complex environment, avoid pipeline from being damaged by subsea rocks or other hard objects.Water inlet 702, air inlet
Mouth 603 and micro porous aeration head 602 extend to the outside of bottom plate 5, and wherein water inlet 702 and air inlet 603 is all connected to tractor tug 2
Side.
Plough cutting edge of a knife or a sword side includes one section of vertical section and one section of tilting section, and a pointed plough cutting edge of a knife or a sword 709 is formed on the bottom of tilting section, this
Structure forms sharp plough cutting edge of a knife or a sword 709, ensures that vomerine tooth 704 continuously continual can break ground.
When carrying out bottom sediment reparation, start tractor tug 2, tractor tug 2 drags prosthetic device main body and travelled forward;Vomerine tooth
704 are inserted into sea bed soil, and during being travelled forward with tractor tug 2, vomerine tooth 704 stirs soil, by soil scarifying.Enrichment
The sedimentary particle of a large amount of pollutants suspends in the seawater, forms the sludge suspension of subrange, can increase aeration tube 601
With the effluent of water pipe 701 and the contact area of pollutant, pollutant control efficiency is improved.
Below in conjunction with the difference of environments such as subsea, the method that several environments such as subsea improve is provided:
(1) seabed anoxic:High-pressure hydraulic pump on tractor tug 2 draws the oxygen-enriched seawater of seawater surface, is conveyed through water-supply-pipe 401
To water pipe 701, each jetting pipeline 707 is distributed to, is sprayed through water spout 708, is mixed with sludge suspension.Oxygen-enriched seawater and
Microbubble can increase the concentration of benthic dissolved oxygen, improve the environment of bottom seawater, by its self-regeneration, maintain the life in seabed
State balances.
(2) organic matter being enriched with bottom sediment is excessive:Now seabed also has the performance of anoxic.In anaerobic condition
Under, anaerobic bacteria decomposing organic matter produces the noxious materials such as hydrogen sulfide, ammonia, causes seawater to be acidified.Now, aeration tube is passed through
601 are passed through pulverized limestone, are sprayed through multiple micro porous aeration heads 602, and pulverized limestone is melted into water and forms aqua calcis, suspended with sludge
Liquid mixes, and is neutralized with the seawater of acidifying.
(3) if virus, bacterium in bottom sediment are excessive:Ozone can be passed through by aeration tube 601, be exposed through multiple micropores
Gas first 602 sprays, and is mixed with sludge suspension, primary using the virus in the extremely strong oxidisability kill seawater of ozone, bacterium etc.
Thing.Product after ozone reaction is oxygen, will not produce secondary pollution.
(4) if rich in heavy metal, toxic chemical etc. in bottom sediment:It can be selected according to the difference of deposit composition
Biological reagent or chemical reagent are administered.The input source of biological reagent or chemical reagent is connected to water-supply-pipe 401, reagent will be through
Water-supply-pipe 401 is delivered to water pipe 701, and is distributed to each jetting management 707, sprays through sparge pipe 708, is mixed with sludge suspension
Close.It is pointed out that the biological reagent or chemical reagent of selection will not cause secondary pollution to environments such as subsea, and can and sea
The heavy metal at bottom, toxic chemical reaction generate harmless deposit.
Claims (7)
1. ship borne type bottom sediment prosthetic device, it is characterised in that:Including prosthetic device main body, pull rope and delivery pipe, repair
Apparatus for coating main body is connected by pull rope with tractor tug;Prosthetic device main body includes bottom plate and the gas deflation assembly on bottom plate
And drain assembly;
The gas deflation assembly includes aeration tube, and multiple micro porous aeration heads, aeration are provided with along aeration tube length direction is transversely arranged
Air inlet is provided with pipe, micro porous aeration head forms the pipeline of insertion, micro porous aeration head direction and traction obliquely with aeration tube
Shipping agency enters side in opposite direction;
The drain assembly includes water pipe, and water inlet is provided with water pipe, along length of pipe direction it is transversely arranged be provided with it is multiple
The outlet pipe communicated with water pipe, each outlet pipe lower section are connected to a vomerine tooth;The vomerine tooth includes plough cutting edge of a knife or a sword side and plough dorsal part, and it is ploughed
Cutting edge of a knife or a sword side is blade-like, towards a side of tractor tug;It ploughs the jetting pipeline that dorsal part is internally formed one section of insertion, and jetting pipeline enters
Mouth communicates with outlet pipe, and it is exported installs towards the opposite side of tractor tug direct of travel, the exit of jetting pipeline obliquely
There is water spout;
The delivery pipe includes water-supply-pipe and appendix, the entrance of water-supply-pipe and appendix positioned at traction shipboard, outlet respectively with
Water inlet and air inlet communicate.
2. ship borne type bottom sediment prosthetic device as claimed in claim 1, it is characterised in that:On tractor tug configure water pump and
Air pump, water delivery tube inlet connect with water pump, and gas transmission tube inlet connects with air pump.
3. ship borne type bottom sediment prosthetic device as claimed in claim 1, it is characterised in that:The aeration tube and water pipe are equal
Base plate interior is embedded in, water inlet, air inlet and micro porous aeration head extend to the outside of bottom plate.
4. ship borne type bottom sediment prosthetic device as claimed in claim 1, it is characterised in that:Bottom plate close to tractor tug one
Side be upturned it is streamlined.
5. ship borne type bottom sediment prosthetic device as claimed in claim 1, it is characterised in that:The plough cutting edge of a knife or a sword side includes one section
One pointed vomerine tooth end is formed on vertical section and one section of tilting section, the bottom of the tilting section.
6. the method for bottom sediment reparation is carried out using the ship borne type bottom sediment prosthetic device described in claim 1, its
It is characterised by:Tractor tug dragging prosthetic device main body travels forward;Liquid is conveyed to seabed by water-supply-pipe;By appendix to
Seabed conveys gas.
7. the method for bottom sediment reparation is carried out using the ship borne type bottom sediment prosthetic device described in claim 6, its
It is characterised by:The liquid is the seawater containing biological reagent or chemical reagent, and the gas is oxygen or ozone.
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CN201610242400.2A CN105753280B (en) | 2016-04-19 | 2016-04-19 | Ship borne type bottom sediment prosthetic device and method |
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CN201610242400.2A CN105753280B (en) | 2016-04-19 | 2016-04-19 | Ship borne type bottom sediment prosthetic device and method |
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CN105753280B true CN105753280B (en) | 2018-02-27 |
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CN111648749A (en) * | 2020-07-09 | 2020-09-11 | 中国海洋石油集团有限公司 | Seabed shallow surface layer natural gas hydrate mobile vertical pipe type mining system and mining method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103848548A (en) * | 2014-03-05 | 2014-06-11 | 华东师范大学 | Sediment repair aeration device for intensifying controlled release of endogenous nutrients and aeration method thereof |
CN104895031A (en) * | 2015-05-04 | 2015-09-09 | 安徽工业大学 | Polluted water and muddy water synchronous repair ship and application method |
CN205528335U (en) * | 2016-04-19 | 2016-08-31 | 国家海洋局第一海洋研究所 | Ship -borne deep -sea sediment prosthetic devices |
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JP2000233196A (en) * | 1999-02-12 | 2000-08-29 | Hiyoshi:Kk | Device for removing foreign matter for wastewater disposal |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103848548A (en) * | 2014-03-05 | 2014-06-11 | 华东师范大学 | Sediment repair aeration device for intensifying controlled release of endogenous nutrients and aeration method thereof |
CN104895031A (en) * | 2015-05-04 | 2015-09-09 | 安徽工业大学 | Polluted water and muddy water synchronous repair ship and application method |
CN205528335U (en) * | 2016-04-19 | 2016-08-31 | 国家海洋局第一海洋研究所 | Ship -borne deep -sea sediment prosthetic devices |
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