CN111039542A - Treatment system and treatment process for removing polluted bottom mud of lakes, reservoirs and riverways - Google Patents
Treatment system and treatment process for removing polluted bottom mud of lakes, reservoirs and riverways Download PDFInfo
- Publication number
- CN111039542A CN111039542A CN201911415230.3A CN201911415230A CN111039542A CN 111039542 A CN111039542 A CN 111039542A CN 201911415230 A CN201911415230 A CN 201911415230A CN 111039542 A CN111039542 A CN 111039542A
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- Prior art keywords
- sludge
- mud
- equipment
- storage
- stirring
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 230000018044 dehydration Effects 0.000 claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 15
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 6
- 239000013049 sediment Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000011066 ex-situ storage Methods 0.000 description 2
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000010399 physical interaction Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a treatment system and a treatment process for removing polluted bottom mud in lakes, reservoirs and riverways, which comprises water body isolation equipment, slurry stirring equipment, centrifugal dehydration equipment and sludge storage and transportation equipment which are communicated through pipelines; the water body isolation equipment comprises a plurality of isolation cavities which can be spliced with one another and a crane for taking off, landing and adjusting the isolation cavities; the centrifugal dehydration equipment comprises a sludge conditioning and stirring system, a sludge-mud-water separation system, a sludge dehydration system and a sludge cake spiral conveying and unloading system; the sludge storage and transportation equipment comprises a storage and transportation ship body, a positioning pile for supporting the storage and transportation ship body and a sludge cabin positioned in the storage and transportation ship body, wherein a spiral unloader is arranged in the sludge cabin. The invention adopts a movable treatment station, all equipment is arranged on the ship to operate, land resources are not occupied, the treatment method is simple, the direct separation of bottom mud and water body is realized, the mud-water separation is implemented in real time, and the water content of dry mud is as low as 60%.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to a treatment system for removing polluted bottom sludge in lakes, reservoirs and riverways.
Background
The pollution of the bottom mud of the water body is an environmental problem in the world, and the pollutants enter the water body through atmospheric sedimentation, wastewater discharge, rainwater leaching and scouring, are finally deposited in the bottom mud and are gradually enriched, so that the bottom mud is seriously polluted. In a river environment, the bed sediment is transported in a pushed and suspended form, largely resulting in the physical interaction of the overlying water and the sediment. Rivers have strong natural environment and tend to be favorable for the desorption of deposited bottom mud in a river system, so that the water quality of the overlying water can be influenced, pollutants can be reserved, accumulated and migrated in organisms through biological metabolism to generate toxicity and teratogenicity hazards, and not only are benthos of the rivers harmed, but also the health of people is seriously threatened. Therefore, in water quality management programs, contaminated sediment sludge is considered as a source of contamination. At present, the treatment method of the bottom mud of the river can be divided into two technologies of in-situ treatment and ex-situ treatment. Most of them are treated by ex-situ treatment, including engineering dredging, solidification and landfill. However, in the process of dredging sludge, the bottom mud is loosened into slurry by using devices such as a reamer and a water gun, but the loose bottom mud is easy to diffuse along with the flow of water, the diffusion of the bottom mud with pollutants in the water can enlarge the pollution range, and the diffusion of the loose bottom mud can increase the turbidity degree of a river channel and increase the difficulty in treating the river and the lake.
Disclosure of Invention
The invention mainly solves the technical problem of providing a treatment system and a treatment process for removing bottom mud polluted by lakes, reservoirs and riverways, wherein the treatment system adopts a movable treatment station, all equipment is arranged on a ship for operation, land resources are not occupied, the treatment method is simple, the direct separation of the bottom mud and a water body is realized, the mud-water separation is implemented in real time, the water content of dry mud is as low as 60 percent, the system can realize thorough sludge treatment, the transportation speed of the bottom mud is greatly reduced, and the operability is strong.
In order to solve the technical problems, the invention adopts a technical scheme that: a treatment system for removing polluted bottom mud in lakes, reservoirs and riverways comprises water body isolation equipment, slurry stirring equipment, centrifugal dehydration equipment and sludge storage and transportation equipment which are communicated through pipelines;
the water body isolation equipment comprises a plurality of isolation cavities which can be spliced with one another and a crane for taking off, landing and adjusting the isolation cavities;
the slurry stirring equipment comprises a stirring head;
the centrifugal dehydration equipment comprises a sludge conditioning and stirring system, a sludge-mud-water separation system, a sludge dehydration system and a sludge cake spiral conveying and unloading system;
the sludge storage and transportation equipment comprises a storage and transportation ship body, a positioning pile for supporting the storage and transportation ship body and a sludge cabin positioned in the storage and transportation ship body, wherein a spiral unloader is arranged in the sludge cabin.
Further, the cross section of the isolation cavity is circular, square or arc.
Furthermore, a protective net is arranged around the stirring head.
Further, the sludge cake spiral conveying and discharging system is a spiral conveyor.
Further, the sludge dewatering system is an extruder.
Further, the sludge-water separation system is a filter belt type sludge dewatering machine.
Further, the sludge conditioning and stirring system comprises a stirrer and a flocculating agent dosing device communicated with the stirrer.
The treatment process of the treatment system for removing the polluted bottom sludge of the lakes, the reservoirs and the riverways comprises the following steps:
s1, hoisting the bottom mud and the isolation cavity by using a crane, and placing the bottom mud and the isolation cavity into a place where the water body needs to dig the mud;
s2, starting a stirring head, stirring the bottom mud, and conveying the bottom mud to centrifugal dehydration equipment;
the bottom sludge extracted by S3 and S2 is firstly sent to a sludge conditioning and stirring system, a flocculating agent is added, the mixture is fully stirred and mixed and then sent to a sludge-water separation system to realize sludge-water separation and concentration, and the concentrated bottom sludge is extruded by an extruder to be further dehydrated to form a sludge cake;
s4, transporting the mud cakes to the storage and transportation ship body by a screw conveyer and then transporting the mud cakes outwards;
s5, transporting the dry bottom mud out of the ship body to a pointed place for comprehensive utilization or disposal.
The invention has the beneficial effects that: the treatment system adopts a movable treatment station, all equipment is arranged on the ship for operation, land resources are not occupied, the treatment method is simple, the direct separation of bottom sludge and water body is realized, the sludge-water separation is implemented in real time, the water content of dry sludge is as low as 60 percent, the system can realize thorough sludge treatment, the transportation speed of the bottom sludge is greatly reduced, and the operability is strong.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
Example (b): a treatment system for removing polluted bottom mud in lakes, reservoirs and riverways comprises water body isolation equipment, slurry stirring equipment, centrifugal dehydration equipment and sludge storage and transportation equipment which are communicated through pipelines;
the water body isolation equipment comprises a plurality of isolation cavities which can be spliced with one another and a crane for taking off, landing and adjusting the isolation cavities;
the slurry stirring equipment comprises a stirring head;
the centrifugal dehydration equipment comprises a sludge conditioning and stirring system, a sludge-mud-water separation system, a sludge dehydration system and a sludge cake spiral conveying and unloading system;
the sludge storage and transportation equipment comprises a storage and transportation ship body, a positioning pile for supporting the storage and transportation ship body and a sludge cabin positioned in the storage and transportation ship body, wherein a spiral unloader is arranged in the sludge cabin.
The section of the isolation cavity is circular, square or arc. The main body shape of the isolation cavity can be assembled by assembling plates to be consistent with the shape of the bottom mud of an actual river channel or lake, and one side of the isolation cavity is empty so that the bottom mud can enter the isolation cavity.
And a protective net is arranged around the stirring head. The protective net is used for preventing the stirring pump from being damaged by placing foreign matters such as large stones in front of the stirring head when the bottom mud is pumped.
The sludge cake spiral conveying and discharging system is a spiral conveyer.
The sludge dewatering system is an extruder.
The sludge-water separation system is a filter belt type sludge dewatering machine.
The sludge conditioning and stirring system comprises a stirrer and flocculant dosing equipment communicated with the stirrer.
The treatment process of the treatment system for removing the polluted bottom sludge of the lakes, the reservoirs and the riverways comprises the following steps:
s1, hoisting the bottom mud and the isolation cavity by using a crane, and placing the bottom mud and the isolation cavity into a place where the water body needs to dig the mud; the device can isolate sediment and a water body in a certain area under water so as to extract the sediment and limit the mixing of the water body and the sludge, thereby greatly reducing the extraction amount of the sediment;
s2, starting a stirring head, stirring the bottom mud, and conveying the bottom mud to centrifugal dehydration equipment;
the bottom sludge extracted by S3 and S2 is firstly sent to a sludge conditioning and stirring system, a flocculating agent is added, the mixture is fully stirred and mixed and then sent to a sludge-water separation system to realize sludge-water separation and concentration, and the concentrated bottom sludge is extruded by an extruder to be further dehydrated to form a sludge cake;
s4, transporting the mud cakes to the storage and transportation ship body by a screw conveyer and then transporting the mud cakes outwards;
s5, transporting the dry bottom mud out of the ship body to a pointed place for comprehensive utilization or disposal.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a processing system that is used for lake, reservoir and river course to pollute bed mud to clear away which characterized in that: comprises water body isolation equipment, slurry stirring equipment, centrifugal dehydration equipment and sludge storage and transportation equipment which are communicated through pipelines;
the water body isolation equipment comprises a plurality of isolation cavities which can be spliced with one another and a crane for taking off, landing and adjusting the isolation cavities;
the slurry stirring equipment comprises a stirring head;
the centrifugal dehydration equipment comprises a sludge conditioning and stirring system, a sludge-mud-water separation system, a sludge dehydration system and a sludge cake spiral conveying and unloading system;
the sludge storage and transportation equipment comprises a storage and transportation ship body, a positioning pile for supporting the storage and transportation ship body and a sludge cabin positioned in the storage and transportation ship body, wherein a spiral unloader is arranged in the sludge cabin.
2. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: the section of the isolation cavity is circular, square or arc.
3. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: and a protective net is arranged around the stirring head.
4. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: the sludge cake spiral conveying and discharging system is a spiral conveyer.
5. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: the sludge dewatering system is an extruder.
6. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: the sludge-water separation system is a filter belt type sludge dewatering machine.
7. A treatment system for the removal of polluted substrate sludge from lakes, reservoirs and rivers according to claim 1, further comprising: the sludge conditioning and stirring system comprises a stirrer and flocculant dosing equipment communicated with the stirrer.
8. The process of claim 1, wherein the treatment system comprises: the method comprises the following steps:
s1, hoisting the bottom mud and the isolation cavity by using a crane, and placing the bottom mud and the isolation cavity into a place where the water body needs to dig the mud;
s2, starting a stirring head, stirring the bottom mud, and conveying the bottom mud to centrifugal dehydration equipment;
the bottom sludge extracted by S3 and S2 is firstly sent to a sludge conditioning and stirring system, a flocculating agent is added, the mixture is fully stirred and mixed and then sent to a sludge-water separation system to realize sludge-water separation and concentration, and the concentrated bottom sludge is extruded by an extruder to be further dehydrated to form a sludge cake;
s4, transporting the mud cakes to the storage and transportation ship body by a screw conveyer and then transporting the mud cakes outwards;
s5, transporting the dry bottom mud out of the ship body to a pointed place for comprehensive utilization or disposal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415230.3A CN111039542A (en) | 2019-12-31 | 2019-12-31 | Treatment system and treatment process for removing polluted bottom mud of lakes, reservoirs and riverways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415230.3A CN111039542A (en) | 2019-12-31 | 2019-12-31 | Treatment system and treatment process for removing polluted bottom mud of lakes, reservoirs and riverways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111039542A true CN111039542A (en) | 2020-04-21 |
Family
ID=70241115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911415230.3A Pending CN111039542A (en) | 2019-12-31 | 2019-12-31 | Treatment system and treatment process for removing polluted bottom mud of lakes, reservoirs and riverways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111039542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277692A (en) * | 2021-06-28 | 2021-08-20 | 江西科技学院 | Reservoir sediment-based purification process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334469A (en) * | 2013-07-12 | 2013-10-02 | 上海宏成实业发展有限公司 | Processing system and processing technology for removing river pollution bottom silt in central urban area |
| TW201520404A (en) * | 2013-11-29 | 2015-06-01 | Liang-Xin Zhong | Waterway style silt cleaning method |
| CN105970876A (en) * | 2016-04-22 | 2016-09-28 | 黄河水利委员会黄河水利科学研究院 | Reservoir sand pumping method |
| CN107217697A (en) * | 2017-07-25 | 2017-09-29 | 芜湖皖桥园艺有限责任公司 | A kind of quick silt remover in river course |
| CN207092173U (en) * | 2017-03-10 | 2018-03-13 | 中国科学院武汉岩土力学研究所 | A kind of channel cleanout system |
| CN108275861A (en) * | 2018-03-12 | 2018-07-13 | 江阴市顺通机械技术有限公司 | A kind of environment-friendly type river bottom mud dehydration and drying ship |
| CN208039342U (en) * | 2018-04-16 | 2018-11-02 | 庞德众 | A kind of municipal works riverway sludge cleaning plant |
-
2019
- 2019-12-31 CN CN201911415230.3A patent/CN111039542A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334469A (en) * | 2013-07-12 | 2013-10-02 | 上海宏成实业发展有限公司 | Processing system and processing technology for removing river pollution bottom silt in central urban area |
| TW201520404A (en) * | 2013-11-29 | 2015-06-01 | Liang-Xin Zhong | Waterway style silt cleaning method |
| CN105970876A (en) * | 2016-04-22 | 2016-09-28 | 黄河水利委员会黄河水利科学研究院 | Reservoir sand pumping method |
| CN207092173U (en) * | 2017-03-10 | 2018-03-13 | 中国科学院武汉岩土力学研究所 | A kind of channel cleanout system |
| CN107217697A (en) * | 2017-07-25 | 2017-09-29 | 芜湖皖桥园艺有限责任公司 | A kind of quick silt remover in river course |
| CN108275861A (en) * | 2018-03-12 | 2018-07-13 | 江阴市顺通机械技术有限公司 | A kind of environment-friendly type river bottom mud dehydration and drying ship |
| CN208039342U (en) * | 2018-04-16 | 2018-11-02 | 庞德众 | A kind of municipal works riverway sludge cleaning plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277692A (en) * | 2021-06-28 | 2021-08-20 | 江西科技学院 | Reservoir sediment-based purification process |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |