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CN-122010311-A - Unpowered in-situ methane bubble trapping remover and use method thereof

CN122010311ACN 122010311 ACN122010311 ACN 122010311ACN-122010311-A

Abstract

The invention relates to the field of carbon emission reduction of wetlands, and particularly discloses an unpowered in-situ methane trapping and removing device based on water reoxygenation and methane transmission characteristics and a use method thereof. The methane trapping and storing chamber is in main structure, the gas-liquid interface controlling channel is located in the edge area or outer wall of the methane trapping and storing chamber, the methane escape preventing baffle is located inside the gas-liquid interface controlling channel and connected directly to the methane trapping and storing chamber, the spiral preventing ring is located in the same horizontal plane as the gas-liquid interface controlling channel and connected via short rod to the methane trapping and storing chamber, and the triangular support is connected directly to the methane trapping and storing chamber. The invention can realize methane removal without additional power, substances and personnel management by constructing the device integrating methane capturing, storing and oxidizing functions, and has important significance for reducing methane emission of water body with low cost.

Inventors

  • ZHOU YIN

Assignees

  • 南京简烷科技发展有限公司

Dates

Publication Date
20260512
Application Date
20260312

Claims (10)

  1. 1. The unpowered in-situ methane bubble trapping and removing device is characterized by comprising a methane trapping and storing chamber, a gas-liquid interface control channel, a methane escape prevention baffle, an anti-spiral ring and an A-frame.
  2. 2. The unpowered in-situ methane bubble trapping remover and the use method thereof according to claim 1, wherein the methane trapping and storing chamber is of a hollow structure, including but not limited to a hemispherical, a half-cube, a half-cuboid, a cube or a cuboid structure, and the like, and has the capability of trapping and storing bubbles.
  3. 3. The methane capture and storage chamber of claim 2, wherein the methane capture and storage chamber material comprises, but is not limited to, water insoluble materials such as metal, plastic, wood, stone, cement, or concrete.
  4. 4. An unpowered in situ methane bubble trap remover and method of use according to claim 1 wherein the gas-liquid interface control channel is located at or outside the edge region of the methane trap and storage chamber, including but not limited to opening at the edge region of the methane trap and storage chamber, or directly in the middle of its outside wall, or it opens at the top and inscribes the channel extending into the interior of the methane trap and storage chamber.
  5. 5. The gas-liquid interface control channel of claim 4, wherein the gas-liquid interface control channel shape includes, but is not limited to, triangular, circular, square, or rectangular.
  6. 6. The gas-liquid interface control channel of claim 4, wherein the channel area or cross-sectional area of the individual gas-liquid interface control channels is greater than 0.0001 cm 2 .
  7. 7. The unpowered in-situ methane bubble trapping remover and the use method thereof according to claim 1, wherein the methane escape prevention baffle is positioned on the inner side of the gas-liquid interface control channel, wherein two sides of the methane escape prevention baffle are directly connected with the inner walls of the two sides of the gas-liquid interface control channel, and the top of the methane escape prevention baffle is disconnected with the inner walls of the methane trapping and storing chamber.
  8. 8. The unpowered in-situ methane bubble trapping remover and the use method thereof according to claim 1, wherein the anti-spiral ring is positioned in the methane trapping and storing chamber and is positioned at the same horizontal position with the gas-liquid interface control channel, and the anti-spiral ring is directly connected with the inner wall of the methane trapping and storing chamber or the outer wall of the gas-liquid interface control channel through a short rod.
  9. 9. The unpowered in-situ methane bubble trapping remover and the use method thereof according to claim 1, wherein the tripod is directly connected with the outer wall or the bottom edge of the methane trapping and storing chamber, and the tripod is longer than 3 cm.
  10. 10. The unpowered in-situ methane bubble trapping and removing device and the use method thereof according to claim 1 are characterized in that a film hanging method of the methane bubble trapping and removing device in use comprises natural film hanging, reinforced film hanging and methane oxidizing bacteria film adding, wherein the natural film hanging is that the methane bubble trapping and removing device is directly placed in a target water body to enable the methane bubble trapping and removing device to naturally form a biological film with methane oxidizing capability, the reinforced film hanging is that the methane bubble trapping and removing device is placed in the target water body after being mixed with sediment of a target area by 3 d-7 d, the methane oxidizing bacteria film adding is that methane oxidizing bacteria including but not limited to methyl monad, methyl sarcina, methyl bacillus and the like are added while the methane bubble trapping and removing device is mixed with the sediment of the target area, and the methane oxidizing bacteria film adding is placed in the target water body after 1 d-3 d.

Description

Unpowered in-situ methane bubble trapping remover and use method thereof Technical Field The invention relates to the field of carbon emission reduction of wetlands, in particular to an unpowered in-situ methane bubble trapping remover and a use method thereof. Background Carbon emission reduction of the wetland is an important component in the field of carbon emission reduction, and the carbon reduction amount generated by the carbon emission reduction of the wetland has a key significance for balancing climate targets and industrial development. However, due to the characteristics of dispersion and low carbon emission intensity of the wetland, the carbon emission reduction cost of the wetland becomes a prominent challenge in the carbon reduction process. At present, the carbon emission reduction technology paths of the wetland mainly comprise three types, namely a vegetation carbon fixation and sink increase technology for improving the vegetation planting area, a carbon emission reduction technology for regulating and controlling the surface water depth and nutrients of the wetland and a carbon deposition burial technology for promoting the exogenous carbon input of the wetland through a hydrologic process. However, the above-mentioned technologies either require a lot of subsequent manpower management or promote methane emission in the wetland, so that the above-mentioned technological approaches are difficult to popularize and apply in terms of goal achievement and economic cost. Methane is the second largest greenhouse gas in the carbon row of the wetland, which is next to carbon dioxide, and the global warming potential of methane can reach 27 times of carbon dioxide in century scale. Therefore, the reduction of methane in the wetland plays an important role in carbon emission reduction and coupling compensation of the defects of other carbon emission reduction technologies of the wetland. The wet sludge is the main area of methane production, so that methane in the sludge must pass through the overlying water layer during release to the atmosphere, while 50% -99% of the methane is transported from the sludge to the atmosphere in the form of bubbles due to the low solubility characteristics of methane itself. The oxidation process of the methane molecules with the lowest carbon valence needs to provide sufficient electron acceptors from the outside, and oxygen serving as the electron acceptors can be continuously supplemented into the overlying water body through the water body reoxygenation process, so that feasibility is provided for oxidizing methane into carbon dioxide in the overlying water body. In addition, due to the characteristic of high solubility of carbon dioxide, oxidation products (carbon dioxide) of methane can be released into the air through a water-soluble and free-diffusion process, so that the process of converting methane with high heating potential into carbon dioxide with low heating potential is completed, and the effect of removing methane in the wetland is achieved. Therefore, based on the emission characteristics of methane in the wetland, the solubility difference of methane and carbon dioxide and the reoxygenation capability of water, the invention provides an unpowered in-situ methane bubble trapping and removing device and a use method thereof, so as to solve the problems of the existing wetland carbon emission reduction technology. Disclosure of Invention The invention aims to provide an unpowered in-situ methane bubble trapping and removing device and a using method thereof, which effectively solve the problems of high later management cost, increased methane emission and high hydrologic condition requirements in the wetland carbon emission reduction technology. The technical problem is solved by the scheme that the unpowered in-situ methane bubble trapping remover and the application method thereof are provided, and methane is oxidized into carbon dioxide in an overlying water layer by utilizing the emission characteristics of methane in a wetland, the solubility difference of methane and carbon dioxide and the reoxygenation capability of a water body under the condition that the overlying water layer exists. The unpowered in-situ methane bubble trapping and removing device comprises a methane trapping and storing chamber, a gas-liquid interface control channel, a methane escape-preventing baffle, an anti-spiral ring and an A-frame. Preferably, the methane capturing and storing chamber is of a hemispherical hollow structure, and the radius is larger than 4 cm. Preferably, the gas-liquid interface control channels are located in the edge area of the methane trapping and storing chamber, the shape of the gas-liquid interface control channels is regular triangle, the side length of the gas-liquid interface control channels is 0.5 cm-1.0 cm, and the number of the gas-liquid interface control channels on the single methane bubble trapping remover is 3-5. Preferably, the