CN101845835A - Cutter-suction packing pumping method for cleaning contaminated sediments in river - Google Patents
Cutter-suction packing pumping method for cleaning contaminated sediments in river Download PDFInfo
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- CN101845835A CN101845835A CN 201010180039 CN201010180039A CN101845835A CN 101845835 A CN101845835 A CN 101845835A CN 201010180039 CN201010180039 CN 201010180039 CN 201010180039 A CN201010180039 A CN 201010180039A CN 101845835 A CN101845835 A CN 101845835A
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Abstract
The invention relates to a cutter-suction packing pumping method for cleaning contaminated sediments in a river, which is characterized in that: the sediments are conveyed to a hydraulic separation tank by using a cutter-suction dredger, and the left coarse particles after screening are mechanically transported to a dump to be treated; liquid fine particles self-flows into a treatment pond and are packed and sealed from the top of the treatment pond by using a closed device; a water filtering system is arranged in the sealed body, a water filtering layer capable of adsorbing heavy metal ions is arranged at the bottom of the water filtering system, a pond bottom pipe network which is communicated with the water filtering layer is arranged in the sealed body, and a pumping passage is arranged in the water filtering layer; the gas-water mixture in the sealed body is forcibly absorbed from the pumping passage by using a jet pumping and water adsorbing device until the liquid fine particles are converted into a solid state from a liquid state; the solid fine particles are mechanically transported to a centralized stacking spot; and tail water is treated by using a chemical reagent and discharged into the river after meeting the emission standard. The method has the advantages of no diffusion of pollution because the mud water body is isolated from the outside in the treatment process, no derivative, less power consumption, high efficiency and environmental-friendly treatment of underwater contaminated sediments.
Description
Technical field
What the present invention relates to is the sedimental strand suction packing pumping of a kind of cleaning pollution of river method, belongs to the water environment treatment technical field.
Background technology
The method cleaning pollution of river deposit that adopts strand to inhale, wrap up, bleed does not appear in the newspapers as yet.
Summary of the invention
What the present invention proposed is the sedimental strand suction packing pumping of a kind of cleaning pollution of river method, its purpose is intended to adopt under the environmental sealing condition, select for use and bleed, in inclusion enclave, produce the negative pressure transmission, make the interior pore water of fine grained body fluid to negative pressure eminence directed flow, make the fine grained body water content reduce, thereby obtain solidifying.
Technical solution of the present invention: it is characterized in that pollution of river deposit is transported to the waterpower separate tank by cutter suction dredger, after the waterpower screening, a part of coarse granule (stone, sand, rubbish) shape material is handled to the soot by mechanical handing; Another part fluidised form fine grained body is sent in the treatment pond, adopt obturator, from treatment pond bottom with fluidised form plasma environmental sealing, screening system is set, the drainage layer of adsorbable heavy metal ion is set in its bottom, the pond bottom tube net that is communicated with the drainage layer is set within it, in the drainage layer, establish bleed-off passage, adopt the jet water absorber of bleeding, from bleed-off passage powerful sucking-off air-water mixture in the seal, be converted into solid-stately until the plasma body from fluidised form, reach the moisture content that the carrying of available engineering machinery requires, adopt engineering machinery will handle fine particle after solidifying and be transported to and concentrate the stacking point; Handle accordingly according to the purposes of utilizing again, adopt chemical agent to handle tail water, enter the river course after reaching discharge standard.
Advantage of the present invention, the muddy water body is hedged off from the outer world in the processing procedure, and pollute and do not have diffusion, no derivative, power consumption is few, and the efficient height has solved the sedimental problem of the environmental protection cleaning pollution of river, has higher social benefit and economic worth.Can be widely used in bigger lake, city of engineering quantity and river course and pollute sedimentary processing under water.
Description of drawings
Accompanying drawing 1 is a process chart of the present invention.
Accompanying drawing 2 is that treatment pond is laid floor map.
Accompanying drawing 3 is that treatment pond is laid schematic cross-sectional view.
Accompanying drawing 4 is that pond bottom tube screen cloth is established floor map.
Accompanying drawing 5 is that pond bottom tube screen cloth is established schematic cross-sectional view.
The specific embodiment
Contrast accompanying drawing 1, pollution of river deposit is transported to the waterpower separate tank by cutter suction dredger, and after the waterpower screening, a part of coarse granule (stone, sand, rubbish) shape material is handled to the soot by mechanical handing; The liquid fine particle of another part is from flowing in the treatment pond, adopt obturator, from treatment pond bottom with fluidised form particulate thing environmental sealing, screening system is set, the drainage layer of adsorbable heavy metal ion is set in its bottom, the filtration pipe network that is communicated with the drainage layer is set in its body, in the drainage layer, establish bleed-off passage, adopt the jet water absorber of bleeding, from bleed-off passage powerful sucking-off air-water mixture in the seal, be converted into solid-stately until the particulate thing from fluidised form, reach the moisture content that the carrying of available engineering machinery requires, adopt engineering machinery will handle fine particle after solidifying and be transported to and concentrate the stacking point; Handle accordingly according to the purposes of utilizing again, adopt chemical agent to handle tail water, enter the river course after reaching discharge standard.
Contrast accompanying drawing 2,3, its structure is to be the sealed envelope film around the treatment pond, upwards be arranged in order the person in charge that bleeds, filtration and heavy metal adsorption layer in the pond end of from, separation layer is responsible for, is filtered to drainage, bleed to be responsible for and connect the air removal jet pump, drainage is responsible for and is comprised some drainage arms, the vertical spacing 0.5-0.8m of each drainage arm.
Contrast accompanying drawing 4,5, its structure are to be arranged in order from top to bottom to filter separation layer, filtration and heavy metal adsorption layer, the drainage person in charge, the person in charge bleeds.Bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by drainage bed course UNICOM.
Filter with the heavy metal adsorption layer and adopt interpolation heavy metal absorbent composition in the medium coarse sand, require transmission coefficient to be not less than 0.01cm/ second.
Drainage is responsible for and is adopted diameter 50mm pvc pipe, needs punching on the chimney filter wall, and the aperture is 5mm, and the tube wall hole count of every prolongation 1m is not less than 40, and tube wall needs to overlap geotechnological filter membrane outward, and the connection between the pipe connects with steel wire strand pipe.
Bleeding to be responsible for adopts diameter 75mm pvc pipe to make.Need punching on the chimney filter wall, the aperture is 5mm, and the tube wall hole count of every prolongation 1m is not less than 50, and tube wall needs to overlap geotechnological filter membrane outward, and the connection between the pipe connects with steel wire strand pipe.Bleeding to be responsible for is laid in the drainage person in charge down, directly is not communicated with.Pore water enters drainage be responsible for after, by filtering and the heavy metal adsorption layer, filter out suspension and adsorbing heavy metal in water after, entering bleeds is responsible for and gets rid of.Fluidised form particulate thing in sealing is wrapped up in the body, and utilizing bleeds produces near 100% atmospheric spherical negative pressure, makes the pore water place's of the forcing down directed flow that hoists of thinking highly of oneself, and the moisture content of seal reduces successively, is converted into plastic state until solid-state from fluidised form gradually.
During enforcement, desilting equipment must adopt strand suction formula hydraulic suction dredge, guarantees the thorough cleaning to the deposit fouling thing, can avoid simultaneously because desilting produces secondary pollution.Hydraulic suction dredge hydraulic reclamation deposit at first enters the silt particle separate tank, makes silt particle separate by the waterpower sieving actoion, and the fluidised form thin particulate matter after the separation is from flowing into treatment pond.The sand, stone and the rubbish that are deposited in the separate tank can directly be excavated, and far deliver to the soot and handle.
At first surperficial environmental sealing film in the treatment pond; Lay the thick medium coarse sand filtration beds of one deck 30～50cm in the treatment pond bottom, and in filtration beds, add the heavy metal absorbent; In filtration beds, bury the person in charge that bleeds, the drainage person in charge then respectively underground, bleed to be responsible for and be embedded in the following 10～15cm of the drainage person in charge, bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by filtering pading layer UNICOM, the person in charge and the drainage person in charge that bleeds adopts punching chimney filter outsourcing filter membrane to make, diameter 50～75mm buries spacing 2～3m underground, and the jet pump of being responsible for outside palpus and the treatment pond of bleeding joins; Bury underground and bleed and after drainage is responsible for, lay one deck drainage geotextiles as loaded filter on the filtration beds surface; Establish the drainage arm at the pool inner water plain cloth at last, be responsible in drainage arm and the filtration beds and join;
After filling the fluidised form plasma in the treatment pond, the top layer diaphragm seal is sealed up, then inner surface diaphragm seal and top layer film are done the lap seal processing.
Jet pump is that 10kw is equipped with according to 1500～2000 cubic metres of muddy water body required powers.
Behind the encapsulation process pond, open jet pump, check sealing, after confirming no gas leak phenomenon, continue to bleed.
Near treatment pond, build the tail water treatment pond, in treatment pond, add disinfectant and help precipitating reagent, handle tail water and reach discharge standard.
This technology is applicable to that larger lake, cleaning city and river course pollute sedimentary water environment treatment object of construction production under water.This technology is in the muddy water inclusion enclave of sealing, and utilizing bleeds produces near 100% atmospheric spherical negative pressure, makes the pore water place's of the forcing down directed flow that hoists of thinking highly of oneself, and the moisture content of muddy water body reduces successively, is converted into plastic state until solid-state from fluidised form gradually.Adopt cutter suction dredger, thoroughly clear up and export water-bed precipitation pollutant, avoid producing the secondary pollution diffusion because of the construction disturbance bottom.The hydraulic reclamation body of dredge boat collection at first enters the silt particle separate tank, makes coarse granule wherein separate by the waterpower sieving actoion, and fluidised form fine grained body enters treatment pond.The sand, stone and the rubbish that are deposited in the separate tank are directly excavated with machinery, are transported to the soot and handle.Treatment pond inner surface lining shop diaphragm seal, on the treatment pond counterdie, lay the thick medium coarse sand filtration beds of one deck 30～50cm, and in filtration beds, add heavy metal absorbent, in filtration beds, bury the person in charge that bleeds, the drainage person in charge then respectively underground, bleed to be responsible for and be embedded in the following 10～15cm of the drainage person in charge, bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by drainage bed course UNICOM, the person in charge and the drainage person in charge that bleeds adopts porose chimney filter outsourcing filter membrane to make, diameter 50～75mm, bury spacing 2～3m underground, the jet pump of being responsible for outside palpus and the treatment pond of bleeding joins; Bury underground and bleed and after drainage is responsible for, lay one deck drainage geotextiles as loaded filter on the filtration beds surface; Establish the drainage arm at the pool inner water plain cloth at last, be responsible in drainage arm and the filtration beds and join.
1. after filling the muddy water body in the treatment pond, capping top layer diaphragm seal is done the lap seal processing with pond inner surface diaphragm seal and top layer film then.
2. jet pump is that 10kW is equipped with according to 1500～2000 cubic metres of muddy water body required powers.
3. after the muddy water body being done encapsulation process, open jet pump, check sealing, after confirming no gas leak phenomenon, continue to bleed.
4. near treatment pond, build the tail water treatment pond, in treatment pond, add disinfectant and help the precipitation Ji, handle tail water and reach discharge standard.
Claims (6)
1. clear up the sedimental strand suction packing pumping of pollution of river method for one kind, it is characterized in that the river course under water marine sediments be transported to the waterpower separate tank by cutter suction dredger, after the waterpower screening, a part is handled to the soot by mechanical handing as coarse granule shape materials such as stone, sand, rubbish; The liquid thin particulate matter of another part is sent in the treatment pond, adopt obturator, from treatment pond bottom with muddy water body environmental sealing, screening system is set, the drainage layer of adsorbable heavy metal ion is set in muddy water body bottom, the pond bottom tube net that is communicated with the drainage layer is set in the muddy water body, in the drainage layer, establish bleed-off passage, bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by drainage bed course UNICOM, adopt the jet water absorber of bleeding, from bleed-off passage powerful sucking-off air-water mixture in the inclusion enclave, be converted into solid-stately until the muddy water body from fluidised form, reach the moisture content that the carrying of available engineering machinery requires, adopt engineering machinery will handle thin particulate matter after solidifying and be transported to and concentrate the stacking point; Handle accordingly according to the purposes of utilizing again, adopt chemical agent to handle tail water, enter the river course after reaching discharge standard.
2. the sedimental strand suction packing pumping of a kind of cleaning pollution of river according to claim 1 method, the structure that it is characterized in that treatment pond wherein is to be the sealed envelope film around the treatment pond, upwards be arranged in order the person in charge that bleeds, filtration and heavy metal adsorption layer in the pond end of from, separation layer is responsible for, is filtered to drainage, bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by drainage bed course UNICOM, bleed to be responsible for and connect the air removal jet pump, drainage is responsible for and is comprised some drainage arms, the vertical spacing 0.5-0.8m of each drainage arm.
3. the sedimental strand suction packing pumping of a kind of cleaning pollution of river according to claim 1 method, the structure that it is characterized in that pond bottom tube net wherein is to be arranged in order from top to bottom to filter separation layer, filtration and heavy metal adsorption layer, the drainage person in charge, the person in charge bleeds, bleed and be responsible for and the direct UNICOM of the drainage person in charge, both are by drainage bed course UNICOM.
4. the sedimental strand suction packing pumping of a kind of cleaning pollution of river according to claim 3 method is characterized in that wherein filtering with the heavy metal adsorption layer and adopts interpolation heavy metal absorbent composition in the medium coarse sand, requires transmission coefficient to be not less than 0.01cm/ second.
5. the sedimental strand suction packing pumping of a kind of cleaning pollution of river according to claim 3 method, it is characterized in that wherein drainage is responsible for employing diameter 50mm pvc pipe, need on the chimney filter wall with punching, the aperture is 5mm, the tube wall hole count of every prolongation 1m is not less than 40, tube wall needs to overlap geotechnological filter membrane outward, and the connection between the pipe connects with steel wire strand pipe.
6. the sedimental strand suction packing pumping of a kind of cleaning pollution of river according to claim 3 method is characterized in that wherein bleeding being responsible for and adopts diameter 75mm pvc pipe to make.Need on the chimney filter wall with punching, the aperture is 5mm, and the tube wall hole count of every prolongation 1m is not less than 50, and tube wall needs to overlap geotechnological filter membrane outward, and the connection between the pipe connects with steel wire strand pipe.Bleeding to be responsible for is laid in the drainage person in charge down, directly is not communicated with.Pore water enters drainage be responsible for after, by filtering and the heavy metal adsorption layer, filter out suspension and adsorbing heavy metal in water after, entering bleeds is responsible for and gets rid of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101800398A CN101845835B (en) | 2010-05-24 | 2010-05-24 | Cutter-suction packing pumping method for cleaning contaminated sediments in river |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101800398A CN101845835B (en) | 2010-05-24 | 2010-05-24 | Cutter-suction packing pumping method for cleaning contaminated sediments in river |
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| CN101845835A true CN101845835A (en) | 2010-09-29 |
| CN101845835B CN101845835B (en) | 2011-08-03 |
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| CN2010101800398A Expired - Fee Related CN101845835B (en) | 2010-05-24 | 2010-05-24 | Cutter-suction packing pumping method for cleaning contaminated sediments in river |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745872A (en) * | 2012-07-26 | 2012-10-24 | 山东建筑大学 | Treatment method and device for riverway and lake heavy metal pollution bottom sludge |
| CN102775040A (en) * | 2012-08-02 | 2012-11-14 | 上海市离心机械研究所有限公司 | Shipborne centrifugal dewatering system |
| CN104275341A (en) * | 2014-01-22 | 2015-01-14 | 天津城建大学 | Treatment method for heavy metal polluted sediment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020318A (en) * | 1999-07-08 | 2001-01-23 | Mitsubishi Heavy Ind Ltd | Waters purifying method and waters purifying system and dam soil discharging system |
| CN1565923A (en) * | 2003-06-13 | 2005-01-19 | 王雅谷 | Fast separation type dredger |
| CN201082964Y (en) * | 2008-02-15 | 2008-07-09 | 上海远舟港湾建设有限公司 | Self-navigating type harrow-twisting dredger |
| TW200833618A (en) * | 2007-02-15 | 2008-08-16 | S J Tsair Liaw Ltd | Rapid silt spontaneous drying method |
| CN101376071A (en) * | 2008-10-09 | 2009-03-04 | 江苏江达生态科技有限公司 | Technique for separating mud and water in river and lake deposit |
-
2010
- 2010-05-24 CN CN2010101800398A patent/CN101845835B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020318A (en) * | 1999-07-08 | 2001-01-23 | Mitsubishi Heavy Ind Ltd | Waters purifying method and waters purifying system and dam soil discharging system |
| CN1565923A (en) * | 2003-06-13 | 2005-01-19 | 王雅谷 | Fast separation type dredger |
| TW200833618A (en) * | 2007-02-15 | 2008-08-16 | S J Tsair Liaw Ltd | Rapid silt spontaneous drying method |
| CN201082964Y (en) * | 2008-02-15 | 2008-07-09 | 上海远舟港湾建设有限公司 | Self-navigating type harrow-twisting dredger |
| CN101376071A (en) * | 2008-10-09 | 2009-03-04 | 江苏江达生态科技有限公司 | Technique for separating mud and water in river and lake deposit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745872A (en) * | 2012-07-26 | 2012-10-24 | 山东建筑大学 | Treatment method and device for riverway and lake heavy metal pollution bottom sludge |
| CN102775040A (en) * | 2012-08-02 | 2012-11-14 | 上海市离心机械研究所有限公司 | Shipborne centrifugal dewatering system |
| CN102775040B (en) * | 2012-08-02 | 2013-11-13 | 上海市离心机械研究所有限公司 | Shipborne centrifugal dewatering system |
| CN104275341A (en) * | 2014-01-22 | 2015-01-14 | 天津城建大学 | Treatment method for heavy metal polluted sediment |
| CN104275341B (en) * | 2014-01-22 | 2017-02-08 | 天津城建大学 | Treatment method for heavy metal polluted sediment |
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| CN101845835B (en) | 2011-08-03 |
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