CN111392998A - Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof - Google Patents
Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof Download PDFInfo
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- CN111392998A CN111392998A CN202010216117.9A CN202010216117A CN111392998A CN 111392998 A CN111392998 A CN 111392998A CN 202010216117 A CN202010216117 A CN 202010216117A CN 111392998 A CN111392998 A CN 111392998A
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- 238000005273 aeration Methods 0.000 claims description 56
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- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 9
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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
- C02F11/02—Biological treatment
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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
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F7/00—Aeration of stretches of water
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to a submerged multifunctional ecological blanket for treating black and odorous bottom mud in a river channel flow area, and relates to water treatment equipment with functions of improving water quality, reducing black and odorous bottom mud and the like. The ecological functional blanket is formed by splicing, the main body of the ecological functional blanket can be raw materials such as artificial lawns, geotextiles and the like, the ecological functional blanket is spliced with purification materials which are large in specific surface area and easy to film, such as bionic plants, ecological bases and the like, and pipelines for conveying gas and biological agents are paved at the lower part of the blanket. The bed mud repairing blanket has the function of removing organic matters in the bed mud, so that the bed mud and the water quality are purified.
Description
Technical Field
The invention relates to a combination mode and a use method of an ecological restoration blanket, in particular to restoration of bottom mud of a black and odorous river and water purification application, and belongs to the field of bottom mud restoration.
Background
At present, in some areas with developed industry, water environment problems of partial cities and surrounding villages are serious, excessive organic pollutants, nitrogen and phosphorus and the like are discharged into a water body, the self-purification capacity of the water body is exceeded, the ecological system of the water body is unbalanced, and the ecological environment of the water body is continuously deteriorated to form a black and odorous water body. The black and odorous water body not only brings extremely poor sensory experience to the masses, but also is harmful to physical and mental health of people, and becomes an important environmental problem influencing urban image and ecological safety. Because the cause of black and odorous water is complex, the influence factors are various, and the renovation work relates to a plurality of specialties such as water conservancy, environmental protection, ecology, gardens, animals and plants, microorganisms and the like, and is a difficult point in the current water pollution prevention and control work.
The sediment is one of three environmental elements (water quality, aquatic organisms and sediment) of the water ecosystem, has double effects of receiving foreign pollutants and releasing nutritive salts into a water body, and plays an important role in the material circulation and energy flow process of the water ecosystem. The sediment is composed of a large amount of nutrients (nitrogen, phosphorus, organic matters and the like), and along with the continuous accumulation of the nutrients, the sediment not only can have important influence on benthic organisms existing in the sediment, but also the inherent nutrients can enter an upper water body along with the movement of the water body, so that the concentration of the nutrients such as nitrogen, phosphorus and the like in the water body is increased, and the eutrophication degree of the water body and the outbreak probability of algal bloom are aggravated. Meanwhile, the bottom mud also contains harmful substances such as heavy metals, and if the bottom mud enters the repaired water body, further pollution can be caused. At present, the urban river sediment is repaired by a plurality of methods, namely river sediment dredging, sediment covering and sediment in-situ microbial repair.
Disclosure of Invention
The invention provides a submerged multifunctional ecological blanket introducing in-situ remediation and treatment of bottom mud and a use method thereof.
The technical problem to be solved by the invention is as follows: the sediment deposited in the river channel overflows to generate water body disturbance, and the sediment humus and organic matters in the river channel are brought into suspension, so that the water quality condition is seriously influenced.
The invention relates to a submerged multifunctional ecological blanket for treating black and odorous bottom mud in a river channel flow area, which can be combined into a size suitable for treating the size of the river channel by splicing a plurality of units, and has various combination forms and simple and easy construction.
The invention relates to a submerged multifunctional ecological blanket for treating black and odorous bottom mud in a river channel flow area, which is formed by splicing a plurality of units, wherein the units are fixedly connected by adopting a hoop or a buckle and can be combined into a size suitable for treating the size of a river channel; the ecological blanket comprises an ecological blanket main body, an aeration device and an ecological base, wherein the aeration device is connected with the ecological blanket main body, the ecological base is arranged on the ecological blanket main body, the aeration device comprises an aeration fan on the bank side, a connecting pipeline and an aeration pipeline which is arranged in the ecological blanket main body in a bent mode, the ecological blanket main body is made of artificial lawn or geotextile, and the ecological base is made of bionic plant materials.
Furthermore, the lower part of the ecological blanket main body is also provided with a slow release pipeline for the biological preparation which is bent and spread, and the slow release pipeline is connected with a dosing pump at the bank side through a connecting pipe.
Furthermore, biological agent slow-release pipeline and aeration pipeline be same pipeline, the aeration pipeline stretches to the direction of bank end and connects the pagoda head, and the branch road pipeline of UPVC material is adopted to pagoda head front end, adopts the elbow to carry out the diversion in the middle of the branch road pipeline, and the main line is connected to the branch road, and the main line middle part is through tube coupling aeration fan and dosing pump, and the stopcock shutoff is used at every main line both ends.
Furthermore, an aeration fan and a dosing pump are arranged on the shore and connected with the main pipeline, and dosing and aeration are alternately operated; the main pipeline is connected with at least 2 branch pipelines, the main pipeline is connected with the branch pipelines by using a UPVC material three-way, and the branch pipelines are provided with ball valves for controlling the flow rate and the air volume.
Furthermore, the elbow used in the middle of the branch can be a 90-degree elbow or a 45-degree elbow, the length of the branch can be changed according to the distance between the on-site river channel and the shore, the shore slope is approximately perpendicular to the 90-degree elbow, and the 45-degree elbow is used when the slope is inclined.
Furthermore, the aeration pipeline is bent and laid below the ecological blanket main body, a plastic hose is adopted, the length of the plastic hose is 2-3 times of that of the blanket, the aeration pipeline is connected with the ecological blanket main body by using a machine sewing technology, and the aeration pipeline and the ecological blanket main body are bound in a reciprocating mode at intervals of 5-10cm by using a thread rope which is not easy to corrode and does not release harmful impurities.
Furthermore, the slow release pipeline is bent and laid below the ecological blanket main body, a plastic hose is adopted, the length of the slow release pipeline is 2-3 times of that of the blanket, the slow release pipeline is connected with the ecological blanket main body through a machine sewing technology, and the slow release pipeline and the ecological blanket main body are bound in a reciprocating mode at intervals of 5-10cm through a rope which is not easy to corrode and does not release harmful impurities.
Furthermore, the ecological base has certain buoyancy, can vertically float above the ecological blanket in a riverway by virtue of the buoyancy of water, is connected with the ecological blanket main body by adopting a sewing technology, has the height of 1/3-2/3 and the width of about 5 cm.
The invention also provides a method for treating underwater sludge by using the submerged multifunctional ecological blanket, which comprises the following steps:
1) before sinking, the ecological blanket main body, the aeration pipeline, the slow release pipeline, the branch pipe and the ecological base are in an assembly completion state, the ecological blanket is rolled up by taking a block as a unit, the ecological blanket is manually rolled up at the stern slowly by virtue of the forward sliding movement of the ship body in water, when the ecological blanket is rolled up to the tail end of the blanket part, the buckle of the blanket self-carrying is manually connected to the buckle at the beginning end of the next sinking blanket, and the blanket is sequentially sunk into the water bottom by virtue of the self weight of the blanket and the pressure of water;
2) after the multifunctional ecological blanket is laid according to the size of a river channel, connecting branch pipe joints left beside a bank with corresponding main pipeline interfaces, connecting the main pipeline with an aeration fan and a dosing pump on the bank, and starting to enter a stable state when an ecological base in water floats;
3) when the device is started, the pump and the slow release pipeline are tried, then the aeration fan and the aeration pipeline are tried, and if the device is abnormal, the device is overhauled;
4) when the test is normal, the operation is formally carried out, the medicine adding pump adds medicine for 15-30 minutes at a preset time every day according to a set dose, and then the aeration fan operates all day long.
More specifically, the ecological base is used for providing a living place for living creatures, the lower portion of a blanket is bent and paved with a TPU slow release pipeline for conveying gas and biological agents, the front end (the front section of the slow release pipeline extends to the shore) of the slow release pipeline is connected with a pagoda head, the front end of the pagoda head is provided with a branch pipeline made of UPVC (unplasticized polyvinyl chloride), the middle of the branch pipeline is turned by an elbow, the branch pipeline is connected with a main pipeline, and two ends of each main pipeline are plugged by pipe plugs. An aeration fan and a dosing pump are arranged on the bank and connected with a main pipeline, dosing and aeration are not carried out simultaneously, and alternate operation is carried out. The main pipeline uses UPVC material tee bend connection branch pipeline, sets up ball valve control flow size and amount of wind size on the branch pipeline, and elbow is connected to every branch road rear end.
Further specifically, the length of the main pipeline can be about 10-30 meters, the branch pipes are determined according to the distance between the field river bank and the river channel, and the total service area is within a reasonable range of selecting a fan and a dosing pump.
The invention has the beneficial effects that: compared with the traditional method for treating the river sludge, the method has the following advantages: compared with the traditional sediment dredging method, the in-situ remediation method greatly reduces the disturbance condition to the water body, effectively prevents the sediment from upgoing, and fundamentally reduces the harm of the accumulation of organic matters such as humus and the like to the water body quality. The use place of this ecological function blanket is for the shop cover on river course bed mud upper portion, mainly can reduce bed mud humus, prevents that the bed mud from upwelling, promotes quality of water overall situation.
In addition, the combination mode of the invention is various according to the actual riverway site, and has scientific rationality, and the ecological management method and the physical aeration method play advantages together; the combined splicing is beneficial to the maintenance of single blocks, can be replaced in time and has no influence on the treatment effect; when the dredging machine is used, the ship body is dragged to be laid, the operation is simple, the operability is high, the working efficiency is convenient and fast compared with that of the traditional dredging technology, and the treatment effect is good.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a bottom schematic view of the present invention.
FIG. 3 is a detailed view of the conduit of the present invention.
Fig. 4 is an enlarged view of a part of the present invention.
Detailed Description
In order to better understand the invention, the contents of the invention are further clarified below with reference to examples to embody the functions of the invention. However, the present invention is not limited to the following examples.
The embodiment provides a submerged multifunctional ecological blanket for treating black and odorous bottom mud in a river course flow domain, which can be called as a submerged ecological functional blanket for treating black and odorous bottom mud in the river course flow domain, and the ecological blanket can be formed by splicing a plurality of ecological blankets due to a special combination form and can be combined into a size suitable for treating the size of a river course.
The submerged multifunctional ecological blanket is formed by splicing a plurality of units, the units are fixedly connected by adopting hoops or buckles, the ecological blanket comprises an ecological blanket main body 4, an aeration device connected with the ecological blanket main body and an ecological base 3 arranged on the ecological blanket main body 4, the aeration device comprises an aeration fan at the bank side, a connecting pipeline and an aeration pipeline 5 which is arranged in the ecological blanket main body 4 in a bent mode, the ecological blanket main body 4 is made of artificial lawn or geotextile, and the ecological base 3 is made of bionic plant materials. The lower part of the ecological blanket main body 4 is also provided with a slow release pipeline of a bent spread biological preparation, and the slow release pipeline is connected with a dosing pump at the bank through a connecting pipe. Biological agent slow-release pipeline and aeration pipeline 5 be same pipeline, adopt the TPU material, aeration pipeline 5 stretches to the direction of bank end and connects pagoda head 9, pagoda head 9 front end adopts the branch road pipeline 2 of UPVC material, adopts elbow 7 to change to in the middle of the branch road pipeline 2, branch road connection main line 1, pipe connection aeration fan and dosing pump are passed through at main line 1 middle part, 1 both ends of every main line use 1 shutoff of stopcock. The shore-mounted aeration fan and the dosing pump are connected with the main pipeline 1, and dosing and aeration are alternately operated; main pipeline 1 connects 2 tributary pipe ways 2 at least, and main pipeline 1 uses UPVC material tee bend to connect tributary pipe way 2, sets up ball valve 6 control flow size and amount of wind size on the tributary pipe way. Because the river bank of the embodiment is comparatively slow, the elbow 7 used in the middle of the branch 2 selects the elbow of 45 degrees, and the length of the branch 2 is customized according to the distance between the actual river channel and the bank. The aeration pipeline 5 (also a slow release pipeline) is bent and laid below the ecological blanket main body 4, a plastic hose is adopted, the length of the plastic hose is 2-3 times of the length of the blanket, the aeration pipeline 5 is connected with the ecological blanket main body 4 by using a machine sewing technology, and nylon fiber ropes which are not easy to corrode and do not release harmful impurities are bound in a reciprocating mode at intervals of 10 cm. The ecological base 3 has certain buoyancy, can vertically float above the ecological blanket in a river channel by virtue of the buoyancy of water, the ecological base 3 is connected with the ecological blanket main body 4 by adopting a sewing technology, the height of the ecological base 3 is 1/2 in depth, and the width is about 5 cm.
In the embodiment, the river width is 10m, the river length is 60m, the water depth is 5m, and the bank side gentle slope is small. The main pipeline is adopted as a riverway cross section, 5 rows of ecological multifunctional blankets can be arranged side by side, 6 ecological multifunctional blankets are arranged in a single row, the length of a slow release pipe at the bottom of each blanket is 20m, the slow release pipe is bent and coiled (the completion in the early stage of sinking), and the slow release pipe is connected with the blankets and a machine sewing technology is utilized. The single module of the sediment restoration blanket of this embodiment is 2m 10m, and the size of single sediment restoration blanket can also be decided according to the river course width of difference, can adjust the kind of biological agent and the volume of aeration according to the condition of the sediment pollution condition of difference and quality of water. The specific steps when implementing the above scheme include:
1) before sinking, the ecological blanket main body 4, the aeration pipeline 5, the slow release pipeline, the branch pipe 2 and the ecological base 3 are in an assembled state, the ecological blanket is rolled up by taking blocks as units, the ecological blanket is manually rolled up at the stern slowly by virtue of the forward sliding movement of the ship body in water, when the ecological blanket is rolled up to the tail end of the blanket part, the buckle of the blanket self-carrying is manually connected to the buckle at the beginning end of the next sinking blanket, and the blanket is sequentially sunk into the water bottom by virtue of the self-weight of the blanket and the pressure of water;
2) after the multifunctional ecological blanket is laid according to the size of a river channel, connecting the joints of the branch pipes 2 remained at the bank with the corresponding main pipeline interfaces, connecting the main pipeline with an aeration fan and a dosing pump on the bank, and starting to enter a stable state when the ecological base in water floats;
3) when the device is started, the pump and the slow release pipeline are tried, then the aeration fan and the aeration pipeline are tried, and if the device is abnormal, the device is overhauled;
4) when the test is normal, the operation is formally carried out, the medicine adding pump adds medicine for 15-30 minutes at a preset time every day according to a set dose, and then the aeration fan operates all day long.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a multi-functional ecological blanket of submerged water for administering black smelly bed mud in river course flowing domain which characterized in that: the ecological blanket is formed by splicing a plurality of units, and the units are fixedly connected by adopting hoops or buckles and can be combined into a size suitable for controlling the size of a river channel; the ecological blanket comprises an ecological blanket main body (4), an aeration device connected with the ecological blanket main body and an ecological base (3) arranged on the ecological blanket main body (4), wherein the aeration device comprises an aeration fan at the bank side, a connecting pipeline and an aeration pipeline (5) which is positioned inside the ecological blanket main body (4) and is arranged in a bent mode, the ecological blanket main body (4) is made of artificial lawn or geotextile, and the ecological base (3) is made of bionic plant materials.
2. The submerged multifunctional ecological blanket according to claim 1, characterized in that: the lower part of the ecological blanket main body (4) is also provided with a slow release pipeline of a bent spread biological preparation, and the slow release pipeline is connected with a dosing pump at the bank through a connecting pipe.
3. The submerged multifunctional ecological blanket according to claim 2, characterized in that: biological agent slow-release pipeline is same pipeline with aeration pipeline (5), aeration pipeline (5) stretch to the direction of bank end and connect pagoda head (9), branch road pipeline (2) of UPVC material are adopted to pagoda head (9) front end, adopt elbow (7) to carry out the diversion in the middle of branch road pipeline (2), branch road connection main line (1), tube coupling aeration fan and dosing pump are passed through at main line (1) middle part, stopcock (1) shutoff is used at every main line (1) both ends.
4. The submerged multifunctional ecological blanket according to claim 1, characterized in that: an aeration fan and a dosing pump are arranged on the bank and connected with a main pipeline (1), and dosing and aeration are alternately operated; the main pipeline (1) is at least connected with 2 branch pipelines (2), the main pipeline (1) is connected with the branch pipelines (2) by using UPVC material tee joints, and the branch pipelines are provided with ball valves (6) for controlling the flow and the air volume.
5. The submerged multifunctional ecological blanket according to claim 1, characterized in that: the elbow (7) used in the middle of the branch (2) can be a 90-degree elbow or a 45-degree elbow, the length of the branch (2) can be changed according to the distance between the on-site river channel and the shore, the shore slope is approximately perpendicular to use the 90-degree elbow, and the slope is 45-degree elbow when the slope is inclined.
6. The submerged multifunctional ecological blanket according to claim 1, characterized in that: the aeration pipeline (5) is bent and laid below the ecological blanket main body (4), the length of the aeration pipeline is 2-3 times of the length of the blanket by adopting a plastic hose, the aeration pipeline (5) is connected with the ecological blanket main body (4) by utilizing a machine sewing technology, and the aeration pipeline is bound in a reciprocating manner at intervals of 5-10cm by using a thread rope which is not easy to corrode and does not release harmful impurities.
7. The submerged multifunctional ecological blanket according to claim 2, characterized in that: the slow release pipeline is bent and laid below the ecological blanket main body (4), the length of the slow release pipeline is 2-3 times of that of the blanket, the slow release pipeline is connected with the ecological blanket main body (4) by using a machine sewing technology, and the slow release pipeline and the ecological blanket main body are bound in a reciprocating mode at intervals of 5-10cm through ropes which are not prone to corrosion and do not release harmful impurities.
8. The submerged multifunctional ecological blanket according to claim 1, characterized in that: the ecological base (3) has certain buoyancy, can vertically float above the ecological blanket in a riverway by virtue of the buoyancy of water, the ecological base (3) and the ecological blanket main body (4) are connected by adopting a sewing technology, the height of the ecological base (3) is 1/3-2/3 in depth of water, and the width is about 5 cm.
9. The method for underwater sludge treatment by using the submerged multifunctional ecological blanket according to any one of claims 1 to 8, comprising the steps of:
1) before sinking, the ecological blanket main body (4), the aeration pipeline (5), the slow release pipeline, the branch pipes (2) and the ecological base (3) are in an assembled state, the ecological blanket is rolled up by taking blocks as units, the ecological blanket is manually rolled up at the stern slowly by means of the forward sliding movement of the ship body in water, when the ecological blanket is rolled up to the tail end of the blanket part, the buckle of the blanket is manually connected to the buckle at the starting end of the next sinking blanket, and the blanket is sequentially sunk to the water bottom by means of the self weight of the blanket and the pressure of water;
2) after the multifunctional ecological blanket is laid according to the size of a river channel, the joints of branch pipes (2) remained at the bank are connected with the corresponding main pipeline interfaces, the main pipeline is connected with an aeration fan and a dosing pump on the bank, and the ecological base in water begins to enter a stable state after floating;
3) when the device is started, the pump and the slow release pipeline are tried, then the aeration fan and the aeration pipeline are tried, and if the device is abnormal, the device is overhauled;
4) when the test is normal, the operation is formally carried out, the dosing pump doses the medicine for 15-30 minutes at a preset time every day according to the set dose, and then the aeration fan operates all day long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216117.9A CN111392998A (en) | 2020-03-25 | 2020-03-25 | Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216117.9A CN111392998A (en) | 2020-03-25 | 2020-03-25 | Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof |
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Cited By (2)
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| CN112340952A (en) * | 2020-10-29 | 2021-02-09 | 北京邦源环保科技股份有限公司 | Handle ecological carpet under water of river course bed mud |
| CN112390349A (en) * | 2020-10-29 | 2021-02-23 | 北京邦源环保科技股份有限公司 | Underwater bionic ecological system for river sewage bottom mud treatment |
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