CN105399290A - Rural river channel dredging construction method - Google Patents
Rural river channel dredging construction method Download PDFInfo
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- CN105399290A CN105399290A CN201510845384.1A CN201510845384A CN105399290A CN 105399290 A CN105399290 A CN 105399290A CN 201510845384 A CN201510845384 A CN 201510845384A CN 105399290 A CN105399290 A CN 105399290A
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Abstract
A rural river channel dredging construction method belongs to the technical field of river channel cleaning, and comprises the following steps: carrying out dredging, wherein a dredger equipped with a cutting head and a pump are adopted, the cutting head is put in a mud layer of a river channel, the dredger moves forwards, and the cutting head cuts in the mud layer and conveys mud into the pump; carrying out conveying, wherein the pump sucks both water and the mud to form slurry, and later the slurry is conveyed into a buffer pool by the river bank through a slurry conveying pipeline; carrying out deodorization and curing, wherein a deodorant and a curing agent are added into the buffer pool for curing and deodorization treatment; utilizing the pump to inject the slurry subjected to the curing and deodorization treatment into an ecologic pipe pocket though a pipeline, carrying out curing, precipitation and draining filtration for 1 month by use of the head weight of the slurry in the ecologic pipe pocket, and finally utilizing the dehydrated and cured slurry for slope protection, land filling and outward transport.
Description
Technical field
The invention belongs to Removal Technology field, river course, is exactly specifically that a kind of method of chemistry and physical gravity sedimentation filtration is to rural area channel cleanout process.
Technical field
China is vast in territory, river course, rural area is numerous, each river course as the blood vessels in rural area be all responsible for drink, function that flood passage, water drainage, tourism, shipping etc. are different, but due to the fast development of economy, the not treated phenomenon be directly discharged in river course, rural area of various industrial refuse and domestic refuse occurs repeatedly, cause rural area river channel sedimentation, the lighter's polluted river, severe one can make river course block, affect navigation channel usual, therefore, keep the clean unimpeded of [A1], safety and sanitation, just regularly must carry out desilting to river course in time.The method that generally common channel cleanout is at present taked is: first dredge with digging machine, then with ship, mud is dug out, then mud is placed in cofferdam to entruck and carry away after natural drying and carry out landfill, the method Problems existing of this channel cleanout first mud is placed in cofferdam airing, need to take over big area soil for use, next produces a large amount of backflow sewage, causes secondary pollution river, and in mud airing process, pollutent is evaporated in air and can affects surrounding environment simultaneously.Existing this channel cleanout mode is a kind of unlimited extensive style desilting mode.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide one and can carry out recycling to dehydrating and curing mud, and dehydrating and curing is satisfactory for result, after sludge dewatering, water ratio can be down to 50% ~ 55%, greatly simplifies the rural area channel cleanout constructional method of follow-up intractability.
For realizing the object of the invention, provide following technical scheme: a kind of rural area channel cleanout constructional method, is characterized in that comprising the following steps:
A. mud excavates: by the dredging shovel with cutting head and pump, wherein cutting head is placed in the silt seam in river course, and then dredging shovel starts to move forward, and cutting head incision silt seam is also carried mud in pump;
B. carry: water and mud together suck wherein by pump, and mud is admitted in river bank Buffer Pool by mud conveying pipeline subsequently;
C. deodorized and solidified: in Buffer Pool, to add reodorant and solidifying agent is cured, deodorizing process;
D. utilized by the mud after deodorizing, solidification treatment pump to be injected into ecological pipe bag by pipeline, utilize the mud of ecological pipe bag to conduct oneself with dignity to be cured, to precipitate, draining filters one month, finally the mud after dehydrating and curing is used as bank protection, landfill or outward transport.
As preferably, solidification treatment comprises the following steps: sealed on Buffer Pool top, and utilizes vacuum extractor to make it keep tiny structure, and micro-vacuum state is 0.9 normal atmosphere, in Buffer Pool, heating unit is set, temperature increases for three times gradually by 25 degree ~ 60 degree points, on average within each hour, increases by 10 degree, and arranges whipping appts stirring, temperature remained constant when 25 degree, stir 1 hour, and add one-step solidification agent, dosage is 50ppm; Temperature remained constant when 40 degree, stir 30 minutes, and add one-step solidification agent, dosage is 60ppm; Temperature remained constant when 60 degree, stir 2 hours, and add one-step solidification agent, dosage is 80ppm; Most its standing cool to room temperature of relief.
As preferably, deodorizing process is carried out after solidification treatment, comprises the following steps:
(1) in the mud of standing cool to room temperature, add white lime and Sulfothiorine, stir 1 hour, temperature remains on 35 DEG C;
(2) anaerobically fermenting 6 days, until mud becomes sposh state with water;
(3) pass into oxygen, carry out Air Exposure, make dissolved oxygen in mud mixture reach more than 2.5mg/L.
As preferably, surface apertures is adopted to be the ecological pipe bag of 0.5mm when processing sand mud, when the mud that process composition particle is trickle then needs to adopt surface apertures to be the ecological pipe bag of 0.3mm.
Beneficial effect of the present invention: the present invention utilizes Buffer Pool to be cured mud and deodorizing process, and utilize ecological pipe bag to carry out mud from heavy filtration, the Measures compare of whole channel cleanout is simple, and input cost is not high yet, is beneficial to and promotes in the process of river course, rural area.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
Embodiment 1: a kind of rural area channel cleanout constructional method, comprise the following steps: mud excavates: by the dredging shovel with cutting head and pump, wherein cutting head is placed in the silt seam in river course, and then dredging shovel starts to move forward, and cutting head incision silt seam is also carried mud in pump; Conveying: water and mud together suck wherein by pump, and mud is admitted in river bank Buffer Pool by mud conveying pipeline subsequently; Deodorized and solidified: in Buffer Pool, to add reodorant and solidifying agent is cured, deodorizing process; Being utilized by mud after deodorizing, solidification treatment pump to be injected into ecological pipe bag by pipeline, adopting when processing sand mud surface apertures to be the ecological pipe bag of 0.5mm, when the mud that process composition particle is trickle then needs to adopt surface apertures to be the ecological pipe bag of 0.3mm.Utilize the mud of ecological pipe bag to conduct oneself with dignity to be cured, to precipitate, draining filters one month, finally the mud after dehydrating and curing is used as bank protection, landfill or outward transport.
Solidification treatment comprises the following steps: sealed on Buffer Pool top, and utilize vacuum extractor to make it keep tiny structure, micro-vacuum state is 0.9 normal atmosphere, arranges heating unit in Buffer Pool, and temperature increases for three times gradually by 25 degree ~ 60 degree points, on average within each hour, increase by 10 degree, and whipping appts stirring is set, temperature remained constant when 25 degree, stirs 1 hour, and adding one-step solidification agent, dosage is 50ppm; Temperature remained constant when 40 degree, stir 30 minutes, and add one-step solidification agent, dosage is 60ppm; Temperature remained constant when 60 degree, stir 2 hours, and add one-step solidification agent, dosage is 80ppm; Most its standing cool to room temperature of relief.
Deodorizing process is carried out after solidification treatment, comprises the following steps:
In the mud of standing cool to room temperature, add white lime and Sulfothiorine, stir 1 hour, temperature remains on 35 DEG C; Anaerobically fermenting 6 days, until mud becomes sposh state with water; Pass into oxygen, carry out Air Exposure, make dissolved oxygen in mud mixture reach more than 2.5mg/L.
Claims (4)
1. a rural area channel cleanout constructional method, is characterized in that comprising the following steps:
Mud excavates: by the dredging shovel with cutting head and pump, wherein cutting head is placed in the silt seam in river course, and then dredging shovel starts to move forward, and cutting head incision silt seam is also carried mud in pump;
Conveying: water and mud together suck wherein by pump, and mud is admitted in river bank Buffer Pool by mud conveying pipeline subsequently;
Deodorized and solidified: in Buffer Pool, to add reodorant and solidifying agent is cured, deodorizing process;
Utilized by mud after deodorizing, solidification treatment pump to be injected into ecological pipe bag by pipeline, utilize the mud of ecological pipe bag to conduct oneself with dignity to be cured, to precipitate, draining filters one month, finally the mud after dehydrating and curing is used as bank protection, landfill or outward transport.
2. a kind of rural area channel cleanout constructional method according to claim 1, it is characterized in that solidification treatment comprises the following steps: sealed on Buffer Pool top, and utilize vacuum extractor to make it keep tiny structure, micro-vacuum state is 0.9 normal atmosphere, in Buffer Pool, heating unit is set, temperature increases for three times gradually by 25 degree ~ 60 degree points, on average within each hour, increase by 10 degree, and whipping appts stirring is set, temperature remained constant when 25 degree, stir 1 hour, and add one-step solidification agent, dosage is 50ppm; Temperature remained constant when 40 degree, stir 30 minutes, and add one-step solidification agent, dosage is 60ppm; Temperature remained constant when 60 degree, stir 2 hours, and add one-step solidification agent, dosage is 80ppm; Most its standing cool to room temperature of relief.
3. a kind of rural area channel cleanout constructional method according to claim 2, is characterized in that deodorizing process is carried out after solidification treatment, comprises the following steps:
In the mud of standing cool to room temperature, add white lime and Sulfothiorine, stir 1 hour, temperature remains on 35 DEG C;
Anaerobically fermenting 6 days, until mud becomes sposh state with water;
Pass into oxygen, carry out Air Exposure, make dissolved oxygen in mud mixture reach more than 2.5mg/L.
4. a kind of rural area channel cleanout constructional method according to claim 2, it is characterized in that adopting surface apertures to be the ecological pipe bag of 0.5mm when processing sand mud, when the mud that process composition particle is trickle then needs to adopt surface apertures to be the ecological pipe bag of 0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510845384.1A CN105399290B (en) | 2015-11-30 | 2015-11-30 | A kind of rural area channel cleanout construction method |
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| CN201510845384.1A CN105399290B (en) | 2015-11-30 | 2015-11-30 | A kind of rural area channel cleanout construction method |
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| CN105399290A true CN105399290A (en) | 2016-03-16 |
| CN105399290B CN105399290B (en) | 2018-03-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818209A (en) * | 2019-11-11 | 2020-02-21 | 河北诚润环保工程有限公司 | River and lake sludge solidification ecological slope protection treatment process |
| CN111320345A (en) * | 2020-02-25 | 2020-06-23 | 中建五局第三建设有限公司 | Pipe bag treatment process and system for black and odorous sludge in urban river |
| CN113045157A (en) * | 2020-10-26 | 2021-06-29 | 无锡德林海环保科技股份有限公司 | Sedimentation type sludge in-situ treatment device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631500A (en) * | 1986-06-20 | 1988-01-06 | Chiyoda Chem Eng & Constr Co Ltd | Treatment of tank accumulated sludge and sewage having malodor of oil refining plant |
| CN102583950A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method |
| CN103011539A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Sludge deodorization method |
-
2015
- 2015-11-30 CN CN201510845384.1A patent/CN105399290B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631500A (en) * | 1986-06-20 | 1988-01-06 | Chiyoda Chem Eng & Constr Co Ltd | Treatment of tank accumulated sludge and sewage having malodor of oil refining plant |
| CN102583950A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method |
| CN103011539A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Sludge deodorization method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818209A (en) * | 2019-11-11 | 2020-02-21 | 河北诚润环保工程有限公司 | River and lake sludge solidification ecological slope protection treatment process |
| CN111320345A (en) * | 2020-02-25 | 2020-06-23 | 中建五局第三建设有限公司 | Pipe bag treatment process and system for black and odorous sludge in urban river |
| CN113045157A (en) * | 2020-10-26 | 2021-06-29 | 无锡德林海环保科技股份有限公司 | Sedimentation type sludge in-situ treatment device and method |
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| CN105399290B (en) | 2018-03-13 |
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