CN108726820A - The innoxious in-situ treatment method of riverway sludge - Google Patents
The innoxious in-situ treatment method of riverway sludge Download PDFInfo
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- CN108726820A CN108726820A CN201710264861.4A CN201710264861A CN108726820A CN 108726820 A CN108726820 A CN 108726820A CN 201710264861 A CN201710264861 A CN 201710264861A CN 108726820 A CN108726820 A CN 108726820A
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- innoxious
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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
- C02F11/008—Sludge treatment by fixation or solidification
-
- 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
- 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
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
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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)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to ecological restoration technology on river methods.The innoxious in-situ treatment method of riverway sludge, it includes：Pump drainage river surface layer ponding, exposes mud face, and surface layer sewage is separately disposed；Quick lime layer is sprayed, exposed mud face is covered；Live core pulling sampling, which is become silted up, detects sludge-polluted distribution；Mud is isolated in situ, and the draining of pump drainage surface layer flattens muck surface layer, equal thickness quick lime and cement mix siccative are completely spread in separating element, then agitating device is used to stir, stir one-pass molding, forms the hardened body of cement lime stabilized soil；After the completion of mix, leveling compacting is carried out to hardened body using small-sized compacting equipment；It conserves and is isolated, coating is isolated using formation such as mortar flag stones, reaches isolation heavy metal, prevent the effect of diffusion, while the purpose of the disposition and beautification of landscape convenient for the product silt year in year out of later stage river, lake.The present invention can quickly and conveniently carry out silt harmless and dispose in situ.
Description
Technical field
The present invention relates to ecological restoration technology on river method more particularly to riverway sludge pollution treatment methods.
Background technology
It is the very favorable precious resources in China that rivers and lakes water system is numerous, but deepening continuously with Chinese Industrialization,
The pollution of environmental pollution has become increasingly serious, wherein rivers and lakes is very prominent, and the pollution of river especially in city is particularly acute.River
Road pollution is broadly divided into two kinds of water pollution and sludge pollution, and present invention is generally directed to the latter.
It is to take nature desiccation and mechanical dehydration to administer the main mode of mud at present, uses artificial-strengthening to accelerate when necessary
This natural process, then transport to sludge treatment factory and carry out mud centralized processing, the consuming time is long, freight is high, place is wanted
Ask high, economy is not strong.
Invention content
Present invention seek to address that the drawbacks described above of the prior art, provides a kind of innoxious in-situ treatment method of riverway sludge.
The present invention can quickly and conveniently carry out silt harmless original position and dispose, strong without transporting, being not necessarily to additionally disposition place, economy.
The innoxious in-situ treatment method of riverway sludge of the present invention, it includes：
Step 1：Pump drainage river surface layer ponding, exposes mud face, and surface layer sewage separately carries out innoxious profession disposition；
Step 2：In busy areas or there is resident region, to prevent riverway sludge toxic gas from volatilizing and stench, pump drainage mud face
After lamination water, quick lime layer is sprayed in time, covers exposed mud face；
Step 3：Sludge pollution distribution detection, live core pulling sampling, carries out toxic organic matter and heavy metal contaminants content and divides
Cloth detects；
Step 4：Mud is isolated in situ, river or lake is separated into several units, separating element length is not more than 30m, width
No more than 10m, concrete guard wall is built according to separating element, barricade width is not less than 80cm, and working face is reserved for personnel's machinery,
Wall height combination geological conditions is designed with pollution depth, and barricade bottom surface absolute altitude is not less than less than the contaminated depth of mud
50cm, barricade top surface absolute altitude are no less than 20cm higher than mud face absolute altitude；
Step 5：Mud is harmful to organic matter and disposes in situ, and after isolation barricade reaches curing strength, water filling dilutes mud, by mud
It is liquid phase by solid phase transformation, is stirred back and forth using agitating device, stirring depth is not less than harmful Assessment of Organic Pollution layer or less 20cm；
For harmful organic matter testing result, the harmful organic matter most to content carries out priority handle, and targetedly oxidant is added,
Oxidant species and dosage should be determined by experiment；It is pending complete the most harmful organic matter of content after, then carry out the
Harmful organic matter of two contents is disposed, and is recycled with this；
Step 6：Mud toxic heavy metal in-situ solidifying is disposed, and the mud water mixture handled by toxic organic matter is toxic organic
Matter ingredient greatly reduces, while passing through autoprecipitation, and heavy metal overwhelming majority precipitation enters in mud, and surface layer ponding is toxic
Substance greatly reduces, and passes through sewage treatment plant's Direct Disposal；After the draining of pump drainage surface layer, muck surface layer is flattened, in separating element
Equal thickness quick lime and cement mix siccative are completely spread, then agitating device is used to stir, stirring depth is main not less than heavy metal
20cm below pollution layer, stirs one-pass molding, and stirring overlap joint scope control forms the hardened body of cement lime stabilized soil in 5 ~ 10cm；It mixes
After the completion of conjunction, leveling compacting is carried out to hardened body using small-sized compacting equipment；
Step 7：It conserves and is isolated, all standing maintenance is carried out to separating element, after reaching 28 days curing ages, to separating element face
Layer carries out hard bottomization isolation disposition；According to the height difference between isolation barricade and cured layer mud, hard bottom disposal method is determined, it can
Using the formation such as mortar flag stone be isolated coating, reach isolation heavy metal, prevent diffusion effect, while convenient for the later stage river,
The purpose of lake product is become silted up year in year out disposition and beautification of landscape.
The innoxious in-situ treatment method of the riverway sludge, agitating device setting include：
Two elongated guide rails being arranged in separating element long side, guide rail are hung down by one piece of elongated iron plate and two pieces of vertical elongated iron plates
Straight welding is formed, and is fixed in the vertical flange plate of both sides spaced set, and guide rail sets up expansion bolt with barricade by preformed hole
It is fixed；
Movable machine frame, it is moved up and down by pulley realization fixed thereto, and more than two pulleys are arranged per side；
One blender is set on movable machine frame, and two sections of blender can control cunning by hawser and two sections of fixed automatic hoist engines
It is dynamic to be connected；
Several mixing blade are set under blender, by stirring axis connection.
The innoxious in-situ treatment method of riverway sludge according to claim 2, which is characterized in that the agitating device
Two or more activity stirring racks can be set to accelerate to dispose in same separating element in the movement of four direction up and down
Speed.
The innoxious in-situ treatment method of the riverway sludge, deep weak subgrade is met at barricade bottom in step 4 should carry out wood
Stake consolidation process, avoids barricade differential settlement.
The innoxious in-situ treatment method of the riverway sludge, the oxidant are selected from potassium permanganate, hydrogen peroxide, Fenton
One or more of reagent, persulfate.
The present invention can be suitably used for it is various under the conditions of silt harmless dispose in situ, operation technological process is simple, and operation is fast
It is prompt；Principle is simple, and mechanical substitutability is strong.Short construction period of the present invention, while scale construction can be carried out, it does not interfere with each other, no
It is influenced by tradition disposition site requirements；The present invention is not necessarily to carry out turnover disposition to mud, and construction is convenient, avoids secondary pollution or dirt
Dye transfer；It is convenient that surface coating precipitates disposition offer year in year out while playing the role of beautification of landscape, to later stage mud；This hair
Bright environmental benefit is apparent；Economic benefit is apparent.
Specific implementation mode
The innoxious in-situ treatment method of riverway sludge of the present invention, it is main to include seven disposition steps：
Step 1：Pump drainage river surface layer ponding, exposes mud face, and surface layer sewage separately carries out innoxious profession disposition.
Step 2：In busy areas or there is resident region, to prevent riverway sludge toxic gas from volatilizing and stench, pump drainage becomes silted up
After mud laminated water, quick lime layer is sprayed in time, covers exposed mud face.
Step 3：Sludge pollution distribution detection, live core pulling sampling, carries out toxic organic matter and heavy metal contaminants content
It is detected with distribution；
Step 4：Mud is isolated in situ, river or lake is separated into several units, separating element length is not preferably greater than 30m, wide
Degree is not preferably greater than 10m, and smaller separating element is conducive to more fully carry out harmlessness disposing.Coagulation is built according to separating element
Native barricade, barricade width are not preferably less than 80cm, reserve working face for personnel's machinery, wall height combination geological conditions is deep with pollution
Degree is designed, and barricade bottom surface absolute altitude is less than the contaminated depth of mud（Main pollution layer）Not less than 50cm, barricade top surface absolute altitude
It is no less than 20cm higher than mud face absolute altitude.It meets deep weak subgrade and should be handled in barricade bottom（As deal pile is reinforced）, avoid keeping off
Wall differential settlement.
Step 5：Mud is harmful to organic matter and disposes in situ, and after isolation barricade reaches curing strength, water filling dilutes mud, will
Mud is liquid phase by solid phase transformation, is stirred back and forth using agitating device, and stirring depth is no less than harmful Assessment of Organic Pollution layer（It is main
Want pollution layer）Following 20cm.For harmful organic matter testing result, the harmful organic matter most to content carries out priority handle,
Targetedly oxidant is added（Such as potassium permanganate, hydrogen peroxide, Fenton reagent, persulfate）, oxidant species and dosage
It should be determined by experiment.After the most harmful organic matter of pending completion content, then carry out the harmful organic of the second content
Matter is disposed, and is recycled with this.
Step 6：Mud toxic heavy metal in-situ solidifying is disposed, and the mud water mixture handled by toxic organic matter is toxic
Organic composition greatly reduces, while passing through autoprecipitation, and heavy metal overwhelming majority precipitation enters in mud, surface layer ponding
Noxious material greatly reduces, and can pass through sewage treatment plant's Direct Disposal.After the draining of pump drainage surface layer, muck surface layer is flattened, is separated
Equal thickness quick lime and cement mix siccative are completely spread in unit, then agitating device is used to stir, and stirring depth is not less than a huge sum of money
Owner wants pollution layer or less 20cm, stirs one-pass molding, and it is hardened to form cement lime stabilized soil in 5 ~ 10cm for stirring overlap joint scope control
Body.After the completion of mix, leveling compacting is carried out to hardened body using small-sized compacting equipment.Cement quick lime mix dosage and incorporation
Than combining mud depth and moisture content to carry out experiment determination.
Step 7：It conserves and is isolated, all standing maintenance is carried out to separating element, it is single to separating after reaching 28 days curing ages
First face layer carries out hard bottomization isolation disposition.According to the height difference between isolation barricade and cured layer mud, hard bottomization disposition side is determined
Case can be used the formation such as mortar flag stone isolation coating, reach isolation heavy metal, prevents the effect of diffusion, while being convenient for the later stage
The purpose of river, lake product is become silted up year in year out disposition and beautification of landscape.
The agitating device that this construction method uses mainly is made of four parts, including movable guiding rail, automatic hoist engine, activity
Rack and blender, and the mating hawser of automatic hoist engine.
The operation principle of agitating device is：
（1）Two elongated guide rails are set in separating element long side, and guide rail is by one piece of elongated iron plate and two pieces of vertical elongated iron plates
Vertical welding is formed, and is fixed in the vertical flange plate of both sides spaced set, and guide rail sets up expanding screw with barricade by preformed hole
Bolt is fixed；
（2）Movable machine frame is moved up and down by pulley realization fixed thereto, and more than two pulleys are arranged per side to be advisable；
（3）One blender is set on movable machine frame, and two sections of blender is connected by hawser with two sections of fixed automatic hoist engines
It connects, can horizontally slip；
（4）Several mixing blade are set under blender, by stirring axis connection；
（5）Above-mentioned apparatus can realize the movement of four direction up and down, to realize the purpose stirred comprehensively, you can for having
The disposition of malicious organic matter is stirred, and can be used for the in-situ solidifying disposition of heavy metal, and simple operation, building block principle is simple, when necessary
Two or more activity stirring racks can be set to accelerate to dispose speed in same separating element.
Claims (5)
1. the innoxious in-situ treatment method of riverway sludge, which is characterized in that it includes：
Step 1：Pump drainage river surface layer ponding, exposes mud face, and surface layer sewage separately carries out innoxious profession disposition；
Step 2：In busy areas or there is resident region, to prevent riverway sludge toxic gas from volatilizing and stench, pump drainage mud face
After lamination water, quick lime layer is sprayed in time, covers exposed mud face；
Step 3：Sludge pollution distribution detection, live core pulling sampling, carries out toxic organic matter and heavy metal contaminants content and divides
Cloth detects；
Step 4：Mud is isolated in situ, river or lake is separated into several units, separating element length is not more than 30m, width
No more than 10m, concrete guard wall is built according to separating element, barricade width is not less than 80cm, and working face is reserved for personnel's machinery,
Wall height combination geological conditions is designed with pollution depth, and barricade bottom surface absolute altitude is not less than less than the contaminated depth of mud
50cm, barricade top surface absolute altitude are no less than 20cm higher than mud face absolute altitude；
Step 5：Mud is harmful to organic matter and disposes in situ, and after isolation barricade reaches curing strength, water filling dilutes mud, by mud
It is liquid phase by solid phase transformation, is stirred back and forth using agitating device, stirring depth is not less than harmful Assessment of Organic Pollution layer or less 20cm；
For harmful organic matter testing result, the harmful organic matter most to content carries out priority handle, and targetedly oxidant is added,
Oxidant species and dosage should be determined by experiment；It is pending complete the most harmful organic matter of content after, then carry out the
Harmful organic matter of two contents is disposed, and is recycled with this；
Step 6：Mud toxic heavy metal in-situ solidifying is disposed, and the mud water mixture handled by toxic organic matter is toxic organic
Matter ingredient greatly reduces, while passing through autoprecipitation, and heavy metal overwhelming majority precipitation enters in mud, and surface layer ponding is toxic
Substance greatly reduces, and passes through sewage treatment plant's Direct Disposal；After the draining of pump drainage surface layer, muck surface layer is flattened, in separating element
Equal thickness quick lime and cement mix siccative are completely spread, then agitating device is used to stir, stirring depth is main not less than heavy metal
20cm below pollution layer, stirs one-pass molding, and stirring overlap joint scope control forms the hardened body of cement lime stabilized soil in 5 ~ 10cm；It mixes
After the completion of conjunction, leveling compacting is carried out to hardened body using small-sized compacting equipment；
Step 7：It conserves and is isolated, all standing maintenance is carried out to separating element, after reaching 28 days curing ages, to separating element face
Layer carries out hard bottomization isolation disposition；According to the height difference between isolation barricade and cured layer mud, hard bottom disposal method is determined, it can
Using the formation such as mortar flag stone be isolated coating, reach isolation heavy metal, prevent diffusion effect, while convenient for the later stage river,
The purpose of lake product is become silted up year in year out disposition and beautification of landscape.
2. the innoxious in-situ treatment method of riverway sludge according to claim 1, which is characterized in that described
The agitating device is arranged：
Two elongated guide rails being arranged in separating element long side, guide rail are hung down by one piece of elongated iron plate and two pieces of vertical elongated iron plates
Straight welding is formed, and is fixed in the vertical flange plate of both sides spaced set, and guide rail sets up expansion bolt with barricade by preformed hole
It is fixed；
Movable machine frame, it is moved up and down by pulley realization fixed thereto, and more than two pulleys are arranged per side；
One blender is set on movable machine frame, and two sections of blender can control cunning by hawser and two sections of fixed automatic hoist engines
It is dynamic to be connected；
Several mixing blade are set under blender, by stirring axis connection.
3. the innoxious in-situ treatment method of riverway sludge according to claim 2, which is characterized in that the agitating device can
In the movement of four direction up and down, two or more activity stirring racks are set to accelerate disposition speed in same separating element
Degree.
4. the innoxious in-situ treatment method of riverway sludge according to claim 1, which is characterized in that barricade bottom in step 4
Timber consolidation process should be carried out by meeting deep weak subgrade, avoid barricade differential settlement.
5. the innoxious in-situ treatment method of riverway sludge according to claim 1, which is characterized in that the oxidant is selected from
One or more of potassium permanganate, hydrogen peroxide, Fenton reagent, persulfate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710264861.4A CN108726820B (en) | 2017-04-21 | 2017-04-21 | River sludge harmless in-situ treatment method |
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| CN201710264861.4A CN108726820B (en) | 2017-04-21 | 2017-04-21 | River sludge harmless in-situ treatment method |
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| CN108726820A true CN108726820A (en) | 2018-11-02 |
| CN108726820B CN108726820B (en) | 2021-03-26 |
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Cited By (3)
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| CN109384361A (en) * | 2018-11-20 | 2019-02-26 | 大连德联科技有限公司 | A kind of black and odorous water Processing tecchnics |
| CN110054382A (en) * | 2019-04-25 | 2019-07-26 | 中国电建集团华东勘测设计研究院有限公司 | A kind of black and odorous water sludge handling method |
| CN110127964A (en) * | 2019-04-27 | 2019-08-16 | 南京河海环境研究院有限公司 | A kind of dredging of brooks and small lakes and device for treating sludge |
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| CN110127964A (en) * | 2019-04-27 | 2019-08-16 | 南京河海环境研究院有限公司 | A kind of dredging of brooks and small lakes and device for treating sludge |
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| Publication number | Publication date |
|---|---|
| CN108726820B (en) | 2021-03-26 |
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