CN113072274B - In-situ treatment device and method for endogenous pollution of river and lake - Google Patents
In-situ treatment device and method for endogenous pollution of river and lake Download PDFInfo
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- CN113072274B CN113072274B CN202110398292.9A CN202110398292A CN113072274B CN 113072274 B CN113072274 B CN 113072274B CN 202110398292 A CN202110398292 A CN 202110398292A CN 113072274 B CN113072274 B CN 113072274B
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- bottom mud
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 230000004888 barrier function Effects 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 7
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 9
- 230000007480 spreading Effects 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 23
- 239000013049 sediment Substances 0.000 description 9
- 239000003814 drug Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 description 1
- 239000004343 Calcium peroxide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 description 1
- 235000019402 calcium peroxide Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229950009390 symclosene Drugs 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
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Civil Engineering (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an in-situ treatment device for river and lake endogenous pollution and a treatment method thereof, wherein the treatment device comprises a treatment agent, a dissolvable bag and a barrier layer, the treatment agent is arranged in the sealed dissolvable bag, the barrier layer covers the dissolvable bag and the periphery, and an exhaust structure penetrates through the barrier layer and the dissolvable bag; the treatment method comprises the steps of uniformly spreading the treatment device on the bottom mud of the river and the lake and/or uniformly inserting the treatment device into the bottom mud of the river and the lake, blocking the bottom mud by a blocking layer, gradually decomposing the dissolvable bag, contacting and reacting the treatment agent with the bottom mud, and discharging the generated gas through an exhaust structure. The invention can form a barrier to the bottom mud, thereby blocking the upward water migration of the harmful gases released by the bottom mud of the river and the lake, ammonia nitrogen, total phosphorus, heavy metals, persistent organic pollutants and the like, and the bottom mud is continuously treated for a long time by matching with a dissolving bag and a treatment agent, so that the benign improvement of the water quality of the water body is promoted, and the post maintenance is simple.
Description
Technical Field
The invention belongs to the technical field of environmental treatment, and particularly relates to an in-situ treatment device and method for river and lake endogenous pollution.
Background
The endogenous pollution of the river and the lake means that substances in the river and the lake are deposited at the bottom of the river and the lake through various physical, chemical and biological actions to form bottom mud, and pollution load is caused due to the action of upward water covering release of the bottom mud, and under the condition, even if the exogenous pollution problem is solved, the endogenous pollution still affects the water quality for a long time. In the prior art, various researches are carried out on in-situ treatment of endogenous pollution of inland lakes, such as injecting chemical agents such as sodium percarbonate, trichloroisocyanuric acid and the like into the sediment, and spreading mixed treatment agents such as calcium peroxide, hydrotalcite and manganese dioxide on the surface of the sediment. Therefore, it is necessary to develop an in-situ treatment device and method for river and lake endogenous pollution, which can solve the problems.
Disclosure of Invention
The first aim of the invention is to provide an in-situ treatment device for the endogenous pollution of rivers and lakes.
The second aim of the invention is to provide a treatment method by utilizing an in-situ treatment device for river and lake endogenous pollution
The first object of the invention is achieved by comprising a abatement agent contained within a closed dissolvable bag, a barrier layer overlying and surrounding the dissolvable bag, and an exhaust structure passing through the barrier layer, the dissolvable bag.
The second purpose of the invention is realized by uniformly spreading the treatment device on the bottom mud of the river and the lake and/or uniformly inserting the treatment device into the bottom mud of the river and the lake, blocking the bottom mud by the blocking layer, and after the dissolvable bag is gradually decomposed, contacting and reacting the treatment agent with the bottom mud, and discharging the generated gas through the exhaust structure.
The invention has the beneficial effects that: the barrier layer of the treatment device not only has the functions of fixing the dissolvable bag and treating the medicament, but also can form a barrier to the bottom mud after being used, thereby blocking the upward water migration of harmful gases released by the bottom mud of the river and the lake, ammonia nitrogen, total phosphorus, heavy metals, persistent organic pollutants and the like, and being matched with the dissolvable bag and the treating medicament, the bottom mud is continuously treated for a long time, the benign improvement of the water quality of the water body is promoted, and the post maintenance is simple; the treatment method of the invention is that the treatment device is covered on the bottom mud and can be inserted into the bottom mud, the treatment device covered on the bottom mud forms a single-layer blocking treatment effect, the treatment device inserted into the bottom mud forms a blocking treatment effect from the inside of the bottom mud, and the treatment device is especially suitable for the use under the condition that the bottom mud is thicker, and the treatment device is synchronously arranged on the surface of the bottom mud and the inside of the bottom mud, so that the blocking and treatment effects of the bottom mud can be further improved; the treatment method can also carry out treatment device pavement through the intelligent mechanical arm pavement device, and has the advantages of convenient operation and accurate pavement.
Drawings
FIG. 1 is a schematic diagram of a abatement apparatus according to the present invention.
Fig. 2 is a schematic structural view of the intelligent robot arm laying apparatus.
In the figure: 1-treatment agent, 2-soluble bag, 3-barrier layer, 4-exhaust structure, 5-temporary stacking platform, 6-crawler-type travelling mechanism, 7-mechanical arm, 8-mechanical gripper, 9-temporary stacking treatment device and 10-constructed treatment device.
Detailed Description
The invention is further described below with reference to the accompanying drawings, without limiting the invention in any way, and any alterations or substitutions based on the teachings of the invention are intended to fall within the scope of the invention.
The invention comprises a treatment agent 1, a dissolvable bag 2 and a barrier layer 3, wherein the treatment agent 1 is arranged in the sealed dissolvable bag 2, the barrier layer 3 covers the dissolvable bag 2 and the periphery, and a gas exhaust structure 4 passes through the barrier layer 3 and the dissolvable bag 2.
The treatment agent 1 is a microbial agent and an oxidizing agent, wherein the oxidizing agent is a chemical agent capable of decomposing sludge pollutants, such as calcium nitrate, and the microbial agent is a microbial agent capable of decomposing sludge pollutants, and can be prepared by microorganisms well known to those skilled in the art; the ratio of the microbial agent to the oxidant can be flexibly adjusted according to the requirement.
The barrier layer is formed by uniformly mixing active carbon particles and bentonite, wherein the proportion of the active carbon particles to the bentonite can be flexibly adjusted according to the requirement to obtain a mixture, and then the mixture is adhered on and around the dissolvable bag 2 through an adhesive; the activated carbon particles serve as aggregate to play roles in blocking layer frameworks and filling, have a certain adsorption function on the other hand, can assist in adsorbing floating pollutants, and swell after bentonite absorbs water to block gaps of the aggregate, so that blocking performance is improved.
The exhaust structure 4 is an exhaust slot or an exhaust pipe, and the exhaust pipe is inserted into the treatment agent 1.
The vertical setting of blast pipe, and every treatment device have a plurality of blast pipes, and the blast pipe plays the exhaust effect on the one hand, and a plurality of blast pipes of vertical setting of on the other hand play support function in the treatment device, can stably place after doing benefit to the medicament bag setting, also do benefit to simultaneously and strengthen the stability of the inside multilayer treatment device structure at bed mud surface and bed mud.
By utilizing the treatment method of the river and lake endogenous pollution in-situ treatment device, the treatment device is uniformly paved on the river and lake sediment and/or is uniformly inserted into the river and lake sediment, the sediment is blocked by the blocking layer 3, the dissolvable bag 2 is gradually decomposed, the treatment agent 1 is contacted with the sediment and reacts, and the generated gas is discharged through the exhaust structure 4.
The uniform construction of the treatment device is realized through an intelligent mechanical arm paving device, the intelligent mechanical arm paving device comprises a frame, a temporary stacking platform 5, a crawler-type travelling mechanism 6, a mechanical arm 7, a mechanical gripper 8 and a control device, the crawler-type travelling mechanism 6 is arranged at the bottom of the frame, the temporary stacking platform 5 is arranged on the frame, the mechanical arm 7 is arranged on the frame, the mechanical gripper 8 is arranged at the end part of the mechanical arm 7, the control device is electrically connected with the frame, the crawler-type travelling mechanism 6, the mechanical arm 7 and the mechanical gripper 8 respectively, and the treatment device is temporarily stacked on the temporary stacking platform 5; the crawler-type travelling mechanism 6 drives the device to move at the bottom of a water area, the mechanical arm 7 is matched with the mechanical gripper 8, the treatment device on the temporary stacking platform 5 is grabbed, and then the treatment device is placed on or inserted into the bottom mud; in the construction process, the crawler-type travelling mechanism 6 can be matched to move to change the construction position until the laying treatment device is completed; the intelligent mechanical arm laying device can also be provided with automatic material taking and placing software, the automatic material taking and placing software is common knowledge in the field, the treatment device is temporarily placed on the temporary stacking platform 5 in a fixed position, and the device automatically grabs and lays the medicament bags according to a travel route set in advance.
The present invention will be further described with reference to examples 1 to 6.
Example 1
The in-situ treatment device for the endogenous pollution of the river and the lake comprises a treatment agent 1, a dissolvable bag 2 and a barrier layer 3, wherein the treatment agent 1 is arranged in the sealed dissolvable bag 2, the barrier layer 3 covers the dissolvable bag 2 and the periphery, and an exhaust structure 4 penetrates through the barrier layer 3 and the dissolvable bag 2.
Example 2
The in-situ treatment device for the endogenous pollution of the river and the lake comprises a treatment agent 1, a dissolvable bag 2 and a barrier layer 3, wherein the treatment agent 1 is arranged in the sealed dissolvable bag 2, and an exhaust structure 4 penetrates through the barrier layer 3 and the dissolvable bag 2; the treatment agent 1 is a microbial agent; the barrier layer is formed by uniformly mixing active carbon particles and bentonite according to the mass ratio to obtain a mixture, and then bonding the mixture on and around the dissolvable bag 2 through an adhesive; the exhaust structure 4 is an exhaust slot.
Example 3
The in-situ treatment device for the endogenous pollution of the river and the lake comprises a treatment agent 1, a dissolvable bag 2 and a barrier layer 3, wherein the treatment agent 1 is arranged in the sealed dissolvable bag 2, and an exhaust structure 4 penetrates through the barrier layer 3 and the dissolvable bag 2; the treatment agent 1 is a microbial agent; the barrier layer is formed by uniformly mixing active carbon particles and bentonite according to the mass ratio to obtain a mixture, and then bonding the mixture on and around the dissolvable bag 2 through an adhesive; the exhaust structure 4 is an exhaust pipe which is inserted into the treatment agent 1, the exhaust pipes are vertically arranged, and each treatment device is provided with a plurality of exhaust pipes.
Example 4
By the treatment method of the treatment device in the embodiment 1, the treatment device is uniformly paved on the bottom mud of the river and the lake, the bottom mud is blocked by the blocking layer 3, and after the dissolvable bag 2 is gradually decomposed, the treatment agent 1 contacts with the bottom mud and reacts, and the generated gas is discharged through the exhaust structure 4.
Example 5
By the treatment method of the treatment device in the embodiment 2, the treatment device is uniformly inserted into the river and lake sediment, the sediment is blocked by the blocking layer 3, and after the dissolvable bag 2 is gradually decomposed, the treatment agent 1 contacts with the sediment and reacts, and the generated gas is discharged through the exhaust structure 4.
Example 6
By the treatment method of the treatment device in the embodiment 3, the treatment device is uniformly spread on the bottom mud of the river and the lake and uniformly inserted into the bottom mud of the river and the lake, the bottom mud is blocked by the blocking layer 3, and after the dissolvable bag 2 is gradually decomposed, the treatment agent 1 contacts with the bottom mud and reacts, and the generated gas is discharged through the exhaust structure 4.
Claims (3)
1. The treatment method of the in-situ treatment device for the endogenous pollution of the river and the lake comprises a treatment agent (1), a dissolvable bag (2) and a barrier layer (3), and is characterized in that the treatment agent (1) is arranged in the sealed dissolvable bag (2), the barrier layer (3) covers the dissolvable bag (2) and the periphery, and an exhaust structure (4) penetrates through the barrier layer (3) and the dissolvable bag (2); the barrier layer is formed by uniformly mixing active carbon particles and bentonite to obtain a mixture, and then bonding the mixture on and around a dissolvable bag (2) through an adhesive; the exhaust structure (4) is an exhaust pipe, and the exhaust pipe is inserted into the treatment agent (1); the exhaust pipes are vertically arranged, and each treatment device is provided with a plurality of exhaust pipes;
the treatment method is that the treatment device is evenly spread on the bottom mud of the river and the lake and/or evenly inserted into the bottom mud of the river and the lake, the bottom mud is blocked by the blocking layer (3), after the dissolvable bag (2) is gradually decomposed, the treatment agent (1) contacts with the bottom mud and reacts, and the generated gas is discharged through the exhaust structure (4).
2. The method for treating the river and lake endogenous pollution in-situ treatment device according to claim 1, wherein the treatment agent (1) is a microbial agent and an oxidizing agent.
3. The treatment method by using the river and lake endogenous pollution in-situ treatment device according to claim 1, wherein the uniform construction of the treatment device is realized through an intelligent mechanical arm laying device, the intelligent mechanical arm laying device comprises a frame, a temporary stacking platform (5), a crawler-type travelling mechanism (6), a mechanical arm (7), a mechanical gripper (8) and a control device, the crawler-type travelling mechanism (6) is arranged at the bottom of the frame, the temporary stacking platform (5) is arranged on the frame, the mechanical arm (7) is arranged on the frame, the mechanical gripper (8) is arranged at the end part of the mechanical arm (7), and the control device is respectively electrically connected with the frame, the crawler-type travelling mechanism (6), the mechanical arm (7) and the mechanical gripper (8), and the treatment device is temporarily stacked on the temporary stacking platform (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398292.9A CN113072274B (en) | 2021-04-14 | 2021-04-14 | In-situ treatment device and method for endogenous pollution of river and lake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398292.9A CN113072274B (en) | 2021-04-14 | 2021-04-14 | In-situ treatment device and method for endogenous pollution of river and lake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113072274A CN113072274A (en) | 2021-07-06 |
| CN113072274B true CN113072274B (en) | 2024-04-30 |
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| CN202110398292.9A Active CN113072274B (en) | 2021-04-14 | 2021-04-14 | In-situ treatment device and method for endogenous pollution of river and lake |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004236546A (en) * | 2003-02-04 | 2004-08-26 | Jfe Steel Kk | Method for improving environment in water or on water beach |
| CN205968991U (en) * | 2016-08-31 | 2017-02-22 | 沈阳恒天机器人制造有限公司 | Novel crawler -type walking transfer robot |
| CN111362535A (en) * | 2020-03-12 | 2020-07-03 | 中交三航(重庆)生态修复研究院有限公司 | Method for in-situ treatment of polluted bottom mud and covering material |
| CN111792808A (en) * | 2020-07-22 | 2020-10-20 | 天津中联格林科技发展有限公司 | Geotechnical barrier material for in-situ covering of bottom mud and preparation process |
| CN112158963A (en) * | 2020-10-15 | 2021-01-01 | 李志双 | Water eutrophication restoration device based on microbial restoration technology |
-
2021
- 2021-04-14 CN CN202110398292.9A patent/CN113072274B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004236546A (en) * | 2003-02-04 | 2004-08-26 | Jfe Steel Kk | Method for improving environment in water or on water beach |
| CN205968991U (en) * | 2016-08-31 | 2017-02-22 | 沈阳恒天机器人制造有限公司 | Novel crawler -type walking transfer robot |
| CN111362535A (en) * | 2020-03-12 | 2020-07-03 | 中交三航(重庆)生态修复研究院有限公司 | Method for in-situ treatment of polluted bottom mud and covering material |
| CN111792808A (en) * | 2020-07-22 | 2020-10-20 | 天津中联格林科技发展有限公司 | Geotechnical barrier material for in-situ covering of bottom mud and preparation process |
| CN112158963A (en) * | 2020-10-15 | 2021-01-01 | 李志双 | Water eutrophication restoration device based on microbial restoration technology |
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| CN113072274A (en) | 2021-07-06 |
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Effective date of registration: 20240619 Address after: No. 1803, Building 6, Vanke Zhongtian Beichen, Longquan Road, Wuhua District, Kunming City, Yunnan Province, 650000 Patentee after: Zhang Zhen Country or region after: China Address before: Room 301-306, 3rd floor, building a, Sunshine Building, 999 Kegao Road, high tech Zone, Kunming, Yunnan 650000 Patentee before: YUNNAN ZHIDE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Country or region before: China |