CN109231740A - A kind of river and lake heavily contaminated sediment in-situ remediation method - Google Patents
A kind of river and lake heavily contaminated sediment in-situ remediation method Download PDFInfo
- Publication number
- CN109231740A CN109231740A CN201811185504.XA CN201811185504A CN109231740A CN 109231740 A CN109231740 A CN 109231740A CN 201811185504 A CN201811185504 A CN 201811185504A CN 109231740 A CN109231740 A CN 109231740A
- Authority
- CN
- China
- Prior art keywords
- river
- reaction
- minutes
- heavily contaminated
- lake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Landscapes
- 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)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of river and lake heavily contaminated sediment in-situ remediation methods, the specific steps are as follows: biological growth-promoting liquid is passed through into high-pressure spray gun, and is injected on river bottom mud, stands 1-2 days；Bed mud after reaction be mixed 20-30 minutes；One layer of renovation agent is uniformly placed to the bed mud surface after reaction and stands 2-4 days；Bed mud after reaction be mixed 10-30 minutes；Biological growth-promoting liquid is passed through into high-pressure spray gun, and is injected on river bottom mud, stands 1-2 days；After bed mud after reaction is carried out aeration 1-2 hour, stop being aerated, and after standing 40-60 minutes, the flocculate of floating is removed, can be completed to river and lake heavily contaminated in-situ sediment remediation；It the invention discloses a kind of river and lake heavily contaminated sediment in-situ remediation method, can quickly be complexed, the pollutant in adsorbed water body and bed mud and solidification of flocculating, water turbidity can be effectively reduced, improve water transparency, effectively except N, P, COD and coloration in low water body and bed mud.
Description
Technical field
The present invention relates to a kind of river and lake heavily contaminated sediment in-situ remediation methods, belong to in-situ sediment remediation technical field.
Background technique
Water pollution is a generally existing important environmental problem of the whole world, during Discussion On Measures of Rivers Pollution Treatment, pollutes bottom
The improvement of mud is always main difficult point.Pollutant is by atmospheric sedimentation, rain leaching, discharge of wastewater, soil erosion and washes away
Etc. approach enter water body, and be gradually settled down in water, long-term pollutant can be deposited directly on river bed, and become and influence and restrict
The important presence of pollution sources of overlying water matter.Currently, the Treatment process of Sediments mainly has physics, chemistry and biological renovation method,
Such as elution, masking, sanitary landfills, Composting, dry type heat treatment, microorganism or phytoremediation.Although the bottom of to after administering
The repairing effect of mud has certain improvement, but containing other chemical substances in portion of techniques processing, accordingly, it is possible in the presence of
Therefore how secondary pollution risk thoroughly effectively becomes numerous producers to be solved to river and lake heavily contaminated in-situ sediment remediation
The problem of.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provides a kind of river and lake heavily contaminated sediment in-situ remediation method,
To solve problems of the prior art.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of river and lake heavily contaminated sediment in-situ remediation method, which is characterized in that specific step is as follows:
(1) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1-2 days；
(2) bed mud after reaction be mixed 20-30 minutes；
(3) one layer of renovation agent is uniformly placed to the bed mud surface after reaction and stand 2-4 days；
(4) bed mud after reaction be mixed 10-30 minutes；
(5) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1-2 days；
(6) after the bed mud after reaction being carried out aeration 1-2 hour, stop being aerated, and after standing 40-60 minutes, by the wadding of floating
Condensate is removed, and can be completed to river and lake heavily contaminated in-situ sediment remediation.
As an improvement of the present invention, in the step (1) in biological growth-promoting liquid and step (3) renovation agent weight ratio
For 1:5.
As an improvement of the present invention, in the step (3) in renovation agent and step (5) biological growth-promoting liquid weight ratio
For 3:1.
As an improvement of the present invention, biological growth-promoting liquid is humic acid solution in the step (1) and step (5).
As an improvement of the present invention, the renovation agent by weight, including following component: 50-70 parts of polyvinyl alcohol, absorption
10-20 parts of grain, 20-25 parts of yellow sand, 3-5 parts of calper calcium peroxide, 7-10 parts of sodium nitrate and 2-3 parts of water.
As an improvement of the present invention, the absorption particle is the mixing of diatomite, bentonite, kaolin, active carbon
Object.
As an improvement of the present invention, the diatomite, bentonite, kaolin, active carbon mass ratio be 7:3:1:
2.As an improvement of the present invention, the range of the diatomite mesh number is 150-180 mesh；The range of the bentonite mesh number is
160-170 mesh；The range of the kaolin mesh number is in 120-130 mesh；The range of the active carbon mesh number is 130-150 mesh.
As an improvement of the present invention, specific step is as follows for the renovation agent:
(1) polyvinyl alcohol, absorption particle, yellow sand, calper calcium peroxide, sodium nitrate and water are weighed according to formula；
(2) after polyvinyl alcohol, calper calcium peroxide, sodium nitrate and 2/3 water being stirred mixing 30-50 minutes at 40-50 DEG C,
It is warming up to 70-80 DEG C and is stirred 15-20 minutes；
(3) absorption particle and 1/3 water are mixed, mixture is put into the reaction kettle of sealing, and at 100-110 DEG C
It is dehydrated after being stirred 30-60 minutes；
(4) the absorption particle after step (3) reaction is put into the solution after step (2) reaction, and mixture is made to exist
It is stirred at 100-110 DEG C 30-60 minutes, absorption particle is filtered, dry, is ground；
(5) yellow sand is added into the filtered fluid after step (4) reaction, and by after mixed solution progress conduction 30-40 minutes, is added
By the filtered absorption particle of step (4), and after mixture is stirred 50-60 minutes, hybrid particles are stood into 30-80
Minute；
(6) mixture after reaction is aerated, and continued after stirring 4-5 hours, by mixture filtering, dry, grinding, i.e.,
It can be made, can be prepared by renovation agent.
Due to using the above technology, the present invention compared with the prior art, is had the advantage that as follows:
The invention discloses a kind of river and lake heavily contaminated sediment in-situ remediation method, can quickly be complexed, in adsorbed water body and bed mud
Pollutant and solidification of flocculating, can be effectively reduced water turbidity, improve water transparency, effectively except N, P in low water body and bed mud,
COD and coloration, the ecosystem in water body can walk automatic Reconstruction then, and water body self-purification ability is satisfied cumulative strong.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated.
Embodiment 1:
A kind of river and lake heavily contaminated sediment in-situ remediation method, the specific steps are as follows:
(1) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1 day；
(2) bed mud after reaction be mixed 30 minutes；
(3) one layer of renovation agent is uniformly placed to the bed mud surface after reaction and stand 2 days；
(4) bed mud after reaction be mixed 30 minutes；
(5) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1 day；
(6) by the bed mud after reaction carry out aeration 2 hours after, stop aeration, and stand after forty minutes, by the flocculate of floating into
Row removal, can be completed to river and lake heavily contaminated in-situ sediment remediation.
The weight ratio of biological growth-promoting liquid and renovation agent in step (3) is 1:5 in the step (1).
The weight ratio of renovation agent and growth-promoting liquid biological in step (5) is 3:1 in the step (3).
Biological growth-promoting liquid is humic acid solution in the step (1) and step (5).
The renovation agent by weight, including following component: 70 parts of polyvinyl alcohol, 10 parts of particle of absorption, 25 parts of yellow sand,
3 parts of calper calcium peroxide, 10 parts of sodium nitrate and 2 parts of water.
The absorption particle is the mixture of diatomite, bentonite, kaolin, active carbon.The diatomite, bentonite,
Kaolin, active carbon mass ratio be 7:3:1:2.
The range of the diatomite mesh number is 180 mesh；The range of the bentonite mesh number is 160 mesh；The kaolin mesh
Several ranges is in 130 mesh；The range of the active carbon mesh number is 130 mesh.
Specific step is as follows for the renovation agent:
(1) polyvinyl alcohol, absorption particle, yellow sand, calper calcium peroxide, sodium nitrate and water are weighed according to formula；
(2) it after polyvinyl alcohol, calper calcium peroxide, sodium nitrate and 2/3 water being stirred mixing 30 minutes at 50 DEG C, is warming up to
It 80 DEG C and is stirred 15 minutes；
(3) absorption particle and 1/3 water are mixed, mixture is put into the reaction kettle of sealing, and is carried out at 110 DEG C
Stirring is dehydrated after 30 minutes；
(4) the absorption particle after step (3) reaction is put into the solution after step (2) reaction, and mixture is made to exist
It is stirred at 110 DEG C 30 minutes, absorption particle is filtered, dry, is ground；
(5) yellow sand is added into the filtered fluid after step (4) reaction, and mixed solution is subjected to conduction after forty minutes, warp is added
The filtered absorption particle of step (4) is crossed, and after mixture is stirred 50 minutes, hybrid particles are stood 80 minutes；
(6) mixture after reaction is aerated, and continued after stirring 4 hours, by mixture filtering, dry, grinding
It is made, can be prepared by renovation agent.
Embodiment 2:
A kind of river and lake heavily contaminated sediment in-situ remediation method, the specific steps are as follows:
(1) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 2 days；
(2) bed mud after reaction be mixed 20 minutes；
(3) one layer of renovation agent is uniformly placed to the bed mud surface after reaction and stand 4 days；
(4) bed mud after reaction be mixed 10 minutes；
(5) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 2 days；
(6) by the bed mud after reaction carry out aeration 1 hour after, stop aeration, and stand after sixty minutes, by the flocculate of floating into
Row removal, can be completed to river and lake heavily contaminated in-situ sediment remediation.
The weight ratio of biological growth-promoting liquid and renovation agent in step (3) is 1:5 in the step (1).
The weight ratio of renovation agent and growth-promoting liquid biological in step (5) is 3:1 in the step (3).
Biological growth-promoting liquid is humic acid solution in the step (1) and step (5).
The renovation agent by weight, including following component: 50 parts of polyvinyl alcohol, 20 parts of particle of absorption, 20 parts of yellow sand,
5 parts of calper calcium peroxide, 7 parts of sodium nitrate and 3 parts of water.
The absorption particle is the mixture of diatomite, bentonite, kaolin, active carbon.The diatomite, bentonite,
Kaolin, active carbon mass ratio be 7:3:1:2.
The range of the diatomite mesh number is 150 mesh；The range of the bentonite mesh number is 170 mesh；The kaolin mesh
Several ranges is in 120 mesh；The range of the active carbon mesh number is 150 mesh.
Specific step is as follows for the renovation agent:
(1) polyvinyl alcohol, absorption particle, yellow sand, calper calcium peroxide, sodium nitrate and water are weighed according to formula；
(2) it after polyvinyl alcohol, calper calcium peroxide, sodium nitrate and 2/3 water being stirred mixing 50 minutes at 40 DEG C, is warming up to
It 70 DEG C and is stirred 20 minutes；
(3) absorption particle and 1/3 water are mixed, mixture is put into the reaction kettle of sealing, and is carried out at 100 DEG C
Stirring is dehydrated after sixty minutes；
(4) the absorption particle after step (3) reaction is put into the solution after step (2) reaction, and mixture is made to exist
It is stirred at 100 DEG C 60 minutes, absorption particle is filtered, dry, is ground；
(5) yellow sand is added into the filtered fluid after step (4) reaction, and by after mixed solution progress conduction 30 minutes, warp is added
The filtered absorption particle of step (4) is crossed, and mixture is stirred after sixty minutes, hybrid particles are stood 30 minutes；
(6) mixture after reaction is aerated, and continued after stirring 5 hours, by mixture filtering, dry, grinding
It is made, can be prepared by renovation agent.
Embodiment 3:
A kind of river and lake heavily contaminated sediment in-situ remediation method, the specific steps are as follows:
(1) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1 day；
(2) bed mud after reaction be mixed 25 minutes；
(3) one layer of renovation agent is uniformly placed to the bed mud surface after reaction and stand 3 days；
(4) bed mud after reaction be mixed 18 minutes；
(5) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1 day；
(6) by the bed mud after reaction carry out aeration 1 hour after, stop aeration, and stand 55 minutes after, by the flocculate of floating into
Row removal, can be completed to river and lake heavily contaminated in-situ sediment remediation.
The weight ratio of biological growth-promoting liquid and renovation agent in step (3) is 1:5 in the step (1).
The weight ratio of renovation agent and growth-promoting liquid biological in step (5) is 3:1 in the step (3).
Biological growth-promoting liquid is humic acid solution in the step (1) and step (5).
The renovation agent by weight, including following component: 60 parts of polyvinyl alcohol, 15 parts of particle of absorption, 23 parts of yellow sand,
4 parts of calper calcium peroxide, 8 parts of sodium nitrate and 2 parts of water.
The absorption particle is the mixture of diatomite, bentonite, kaolin, active carbon.The diatomite, bentonite,
Kaolin, active carbon mass ratio be 7:3:1:2.
The range of the diatomite mesh number is 160 mesh；The range of the bentonite mesh number is 160 mesh；The kaolin mesh
Several ranges is in 120-130 mesh；The range of the active carbon mesh number is 140 mesh.
Specific step is as follows for the renovation agent:
(1) polyvinyl alcohol, absorption particle, yellow sand, calper calcium peroxide, sodium nitrate and water are weighed according to formula；
(2) polyvinyl alcohol, calper calcium peroxide, sodium nitrate and 2/3 water are stirred at 45 DEG C mixing after forty minutes, are warming up to
It 78 DEG C and is stirred 17 minutes；
(3) absorption particle and 1/3 water are mixed, mixture is put into the reaction kettle of sealing, and is carried out at 109 DEG C
Stirring is dehydrated after 50 minutes；
(4) the absorption particle after step (3) reaction is put into the solution after step (2) reaction, and mixture is made to exist
It is stirred at 107 DEG C 40 minutes, absorption particle is filtered, dry, is ground；
(5) yellow sand is added into the filtered fluid after step (4) reaction, and by after mixed solution progress conduction 30 minutes, warp is added
The filtered absorption particle of step (4) is crossed, and mixture is stirred after sixty minutes, hybrid particles are stood 30 minutes；
(6) mixture after reaction is aerated, and continued after stirring 4 hours, by mixture filtering, dry, grinding
It is made, can be prepared by renovation agent.
It is verifying renovation agent to the improvement of water body index, spy tests 5L riverbed sludge.River and lake weight is dirty
Dye bed mud is handled according to above-mentioned processing method, the results are shown in Table after 30min is stood after processing to sampling supernatant Testing index
1。
1 riverbed sludge Testing index of table
| Testing index | Raw water water sample | Water sample after processing | Reduced rate (%) |
| COD | 160(mg/l) | 32.4(mg/l) | 79.7 |
| Five-day BOD | 40.6(mg/l) | 7.3(mg/l) | 82 |
| Coloration | 85 (again) | 2.1 (again) | 97.5 |
| Ammonia nitrogen | 2.7(mg/l) | 0.21(mg/l) | 92.2 |
| Phenyl amines | 0.24(mg/l) | 0.02(mg/l) | 91.7 |
Above-described embodiment is only the preferred technical solution of the present invention, and is not construed as limitation of the invention, guarantor of the invention
The technical solution that range should be recorded with claim is protected, being equal for technical characteristic replaces in the technical solution recorded including claim
Changing scheme is protection scope, i.e., equivalent replacement within this range is improved, also within protection scope of the present invention.
Claims (9)
1. a kind of river and lake heavily contaminated sediment in-situ remediation method, which is characterized in that specific step is as follows:
(1) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1-2 days；
(2) bed mud after reaction be mixed 20-30 minutes；
(3) one layer of renovation agent is uniformly placed to the bed mud surface after reaction and stand 2-4 days；
(4) bed mud after reaction be mixed 10-30 minutes；
(5) biological growth-promoting liquid is passed through into high-pressure spray gun, and be injected on river bottom mud, stand 1-2 days；
(6) after the bed mud after reaction being carried out aeration 1-2 hour, stop being aerated, and after standing 40-60 minutes, by the wadding of floating
Condensate is removed, and can be completed to river and lake heavily contaminated in-situ sediment remediation.
2. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 1, it is characterised in that: the step
(1) weight ratio of biological growth-promoting liquid and renovation agent in step (3) is 1:5 in.
3. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 1, it is characterised in that: the step
(3) weight ratio of renovation agent and growth-promoting liquid biological in step (5) is 3:1 in.
4. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 1, it is characterised in that: the step
(1) and in step (5) biological growth-promoting liquid is humic acid solution.
5. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 1, it is characterised in that: the renovation agent
By weight, including following component: 50-70 parts of polyvinyl alcohol, absorption particle 10-20 parts, 20-25 parts of yellow sand, calper calcium peroxide
3-5 parts, 7-10 parts of sodium nitrate and 2-3 parts of water.
6. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 5, it is characterised in that: the absorption
Grain is the mixture of diatomite, bentonite, kaolin, active carbon.
7. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 6, it is characterised in that: the diatom
Soil, bentonite, kaolin, active carbon mass ratio be 7:3:1:2.
8. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 6, it is characterised in that: the diatomite
The range of mesh number is 150-180 mesh；The range of the bentonite mesh number is 160-170 mesh；The range of the kaolin mesh number exists
120-130 mesh；The range of the active carbon mesh number is 130-150 mesh.
9. a kind of river and lake heavily contaminated sediment in-situ remediation method according to claim 5, which is characterized in that the renovation agent
Specific step is as follows:
(1) polyvinyl alcohol, absorption particle, yellow sand, calper calcium peroxide, sodium nitrate and water are weighed according to formula；
(2) after polyvinyl alcohol, calper calcium peroxide, sodium nitrate and 2/3 water being stirred mixing 30-50 minutes at 40-50 DEG C,
It is warming up to 70-80 DEG C and is stirred 15-20 minutes；
(3) absorption particle and 1/3 water are mixed, mixture is put into the reaction kettle of sealing, and at 100-110 DEG C
It is dehydrated after being stirred 30-60 minutes；
(4) the absorption particle after step (3) reaction is put into the solution after step (2) reaction, and mixture is made to exist
It is stirred at 100-110 DEG C 30-60 minutes, absorption particle is filtered, dry, is ground；
(5) yellow sand is added into the filtered fluid after step (4) reaction, and by after mixed solution progress conduction 30-40 minutes, is added
By the filtered absorption particle of step (4), and after mixture is stirred 50-60 minutes, hybrid particles are stood into 30-80
Minute；
(6) mixture after reaction is aerated, and continued after stirring 4-5 hours, by mixture filtering, dry, grinding, i.e.,
It can be made, can be prepared by renovation agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811185504.XA CN109231740A (en) | 2018-10-11 | 2018-10-11 | A kind of river and lake heavily contaminated sediment in-situ remediation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811185504.XA CN109231740A (en) | 2018-10-11 | 2018-10-11 | A kind of river and lake heavily contaminated sediment in-situ remediation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109231740A true CN109231740A (en) | 2019-01-18 |
Family
ID=65053267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811185504.XA Pending CN109231740A (en) | 2018-10-11 | 2018-10-11 | A kind of river and lake heavily contaminated sediment in-situ remediation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231740A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282779A (en) * | 2019-07-05 | 2019-09-27 | 南京中微纳米功能材料研究院有限公司 | A kind of heavy metal-polluted water treatment technology |
| CN110981136A (en) * | 2019-12-30 | 2020-04-10 | 江南大学 | Method for in-situ remediation of river sediment by combination of powdered activated carbon and calcium peroxide |
| CN111087085A (en) * | 2019-12-24 | 2020-05-01 | 中国市政工程西北设计研究院有限公司 | In-situ remediation method for black and odorous water body sediment |
| CN112744993A (en) * | 2021-01-14 | 2021-05-04 | 苏州金螳螂园林绿化景观有限公司 | Oxidation decomposition method for black and odorous water body sediment in natural scenic spot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224940A (en) * | 2007-01-19 | 2008-07-23 | 广州市污水治理有限责任公司 | River sediment in-situ remediation method |
| CN102923927B (en) * | 2011-11-08 | 2014-10-01 | 福州光宇环保科技有限公司 | Contaminated water body bottom mud reoxygenation type repairing agent, preparation method and applications thereof |
| CN105110584A (en) * | 2015-08-03 | 2015-12-02 | 中国科学院水生生物研究所 | Cover material for black and odorous bottom mud slow flow shallow water riverway and repairing method |
| CN106865639A (en) * | 2017-01-11 | 2017-06-20 | 杭州银江环保科技有限公司 | A kind of water body and in-situ sediment remediation agent and restorative procedure |
| CN107555498A (en) * | 2017-08-31 | 2018-01-09 | 航天凯天环保科技股份有限公司 | A kind of earth's surface black and odorous water and bed mud integration in situ remediation medicament and its preparation method and application |
-
2018
- 2018-10-11 CN CN201811185504.XA patent/CN109231740A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224940A (en) * | 2007-01-19 | 2008-07-23 | 广州市污水治理有限责任公司 | River sediment in-situ remediation method |
| CN102923927B (en) * | 2011-11-08 | 2014-10-01 | 福州光宇环保科技有限公司 | Contaminated water body bottom mud reoxygenation type repairing agent, preparation method and applications thereof |
| CN105110584A (en) * | 2015-08-03 | 2015-12-02 | 中国科学院水生生物研究所 | Cover material for black and odorous bottom mud slow flow shallow water riverway and repairing method |
| CN106865639A (en) * | 2017-01-11 | 2017-06-20 | 杭州银江环保科技有限公司 | A kind of water body and in-situ sediment remediation agent and restorative procedure |
| CN107555498A (en) * | 2017-08-31 | 2018-01-09 | 航天凯天环保科技股份有限公司 | A kind of earth's surface black and odorous water and bed mud integration in situ remediation medicament and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 周凤华主编: "《城市生态水利工程规划设计与实践》", 31 December 2015, 黄河水利出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282779A (en) * | 2019-07-05 | 2019-09-27 | 南京中微纳米功能材料研究院有限公司 | A kind of heavy metal-polluted water treatment technology |
| CN111087085A (en) * | 2019-12-24 | 2020-05-01 | 中国市政工程西北设计研究院有限公司 | In-situ remediation method for black and odorous water body sediment |
| CN110981136A (en) * | 2019-12-30 | 2020-04-10 | 江南大学 | Method for in-situ remediation of river sediment by combination of powdered activated carbon and calcium peroxide |
| CN112744993A (en) * | 2021-01-14 | 2021-05-04 | 苏州金螳螂园林绿化景观有限公司 | Oxidation decomposition method for black and odorous water body sediment in natural scenic spot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109231740A (en) | A kind of river and lake heavily contaminated sediment in-situ remediation method | |
| CN108516658B (en) | In-situ cleaning and recycling equipment and method for black and odorous river sediment | |
| CN103861867B (en) | A kind of elution method soil remediation technique | |
| CN104525123A (en) | Porous composite material for removing heavy metals in soil and preparation method thereof | |
| CN111977910B (en) | Rainwater runoff treatment substrate and rainwater bioretention pool constructed by same | |
| CN108188162B (en) | Method for treating heavily polluted land | |
| CN106865639A (en) | A kind of water body and in-situ sediment remediation agent and restorative procedure | |
| CN106032304A (en) | A method of treating pig breeding farm waste water | |
| CN111085537A (en) | Method for restoring heavy metal contaminated soil by using organic phosphorus and inorganic phosphorus materials | |
| CN104475037A (en) | Porous material capable of removing total phosphorus in wastewater and preparation method of porous material | |
| CN104741371A (en) | Contaminated land remediation method | |
| CN110776222A (en) | Preparation and application of sediment nitrogen and phosphorus fixing and repairing agent | |
| CN109384315A (en) | A kind of intensified denitrification and dephosphorization high-load artificial wetland system | |
| CN110104920B (en) | River bottom in-situ repairing agent and preparation method and application thereof | |
| CN107417058B (en) | A kind of river embankment bed mud is modified the method and its application of preparation ecology filler | |
| CN108191064B (en) | Method for deeply treating tail water of sewage treatment plant by adopting constructed wetland | |
| CN114291900A (en) | Sulfur autotrophic denitrification particle and preparation method and application thereof | |
| CN106269832A (en) | A kind of restorative procedure of lower valency heavy-metal contaminated soil | |
| CN110872138A (en) | Method for treating farmland drainage by applying engineering waste as PRB filler | |
| CN111689586B (en) | River sludge treatment system and water purifier preparation method | |
| CN109513737A (en) | A kind of method of cadmium in curing soil | |
| CN207468401U (en) | A kind of mark that carries is to the industrial waste water disposal device for being better than IV class water quality of earth's surface | |
| CN110016350A (en) | Arable land heavy-metal contaminated soil preparation for repairing and preparation method thereof | |
| CN108569819A (en) | A kind of vertical current constructed wetland low-pollution water processing system | |
| CN104496080B (en) | A kind of low-order coal upgrading advanced waste treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |