The present invention discloses a comprehensive system for the marine sequestration of carbon by injecting a slurry of diverse residual biomasses into deep-sea sediments. Central to the innovation is a meticulously designed flexible pipe system, which efficiently transports the slurry from storage units to the seafloor, significantly reducing the energy required for the overall injection process. The system also includes an adapted bulk carrier vessel, uniquely modified for seamless biomass transport, handling, and quality maintenance. The vessel is equipped with state-of-the-art energy generation systems, emphasizing renewable sources, and incorporates environmental considerations to minimize ecological impact. The injection process is optimized through a series of specialized equipment and detailed operational parameters, ensuring precise control and adaptability to various sediment types, depths, and environmental conditions. Additionally, the invention offers several unique embodiments catering to different needs, providing a flexible, cost-efficient, and environmentally responsible solution to ocean-based carbon storage. The system leverages the vastness of the oceans and the unique properties of various biomasses, offering a cutting-edge response to the global challenge of carbon sequestration.

An anaerobic treatment method that can efficiently utilize harvest residues produced in agricultural fields as resources. The anaerobic treatment method causes a raw material including harvest residues produced in an agricultural field to undergo methane fermentation to return fermentation residues produced from the methane fermentation to the agricultural field and to utilize biogas produced from the methane fermentation as an energy source, and includes adjusting a cut length of the harvest residues to be supplied to the methane fermentation based on information about demand for the fermentation residues or the biogas. The method includes adjusting a cut length or average cut length of the harvest residues to be supplied to the methane fermentation to be short in response to an increase in demand for the fermentation residues or the biogas.

An anaerobic treatment method that can efficiently utilize harvest residues produced in agricultural fields as resources. The anaerobic treatment method causes a raw material including harvest residues produced in an agricultural field to undergo methane fermentation to return fermentation residues produced from the methane fermentation to the agricultural field and to utilize biogas produced from the methane fermentation as an energy source, and includes adjusting a cut length of the harvest residues to be supplied to the methane fermentation based on information about demand for the fermentation residues or the biogas. The method includes adjusting a cut length or average cut length of the harvest residues to be supplied to the methane fermentation to be short in response to an increase in demand for the fermentation residues or the biogas.

An upflow leach bed reactor configured to contain a substrate is provided. The reactor includes a container comprising a floor and a sidewall and configured to contain the substrate. The reactor further includes a fluid injection system including a plurality of fluid inlet ports arranged in an array across the floor. The fluid inlet ports can be moved between a first position below the substrate and a second position at least partially within the substrate. The reactor can also include a vertical drain extending from the top to the floor, between the substrate and the sidewall, and configured to permit downward liquid flow and inhibit upward liquid flow therethrough. The reactor can further include an inflatable bladder positioned adjacent the top of the container and configured to press downward against a top surface of the substrate.

An upflow leach bed reactor configured to contain a substrate is provided. The reactor includes a container comprising a floor and a sidewall and configured to contain the substrate. The reactor further includes a fluid injection system including a plurality of fluid inlet ports arranged in an array across the floor. The fluid inlet ports can be moved between a first position below the substrate and a second position at least partially within the substrate. The reactor can also include a vertical drain extending from the top to the floor, between the substrate and the sidewall, and configured to permit downward liquid flow and inhibit upward liquid flow therethrough. The reactor can further include an inflatable bladder positioned adjacent the top of the container and configured to press downward against a top surface of the substrate.

Disclosed is a system for reducing an amount of organic waste and increasing biogas production, combined with a hydrothermal carbonization device having improved energy consumption efficiency. According to an aspect of the present invention, provided is a system for reducing an amount of organic waste and increasing biogas production, the system comprising: a storage tank configured to receive and store organic waste; an anaerobic digester configured to digest organic waste from the storage tank, digest organic matter, and produce biogas; a dewatering unit configured to primarily dewater organic waste discharged from the anaerobic digester; a hydrothermal carbonization device configured to receive and hydrothermally carbonize the dewaterd organic waste; and a filter press configured to secondarily dewater the hydrothermally carbonized product discharged from the hydrothermal carbonization device.

Disclosed is a system for reducing an amount of organic waste and increasing biogas production, combined with a hydrothermal carbonization device having improved energy consumption efficiency. According to an aspect of the present invention, provided is a system for reducing an amount of organic waste and increasing biogas production, the system comprising: a storage tank configured to receive and store organic waste; an anaerobic digester configured to digest organic waste from the storage tank, digest organic matter, and produce biogas; a dewatering unit configured to primarily dewater organic waste discharged from the anaerobic digester; a hydrothermal carbonization device configured to receive and hydrothermally carbonize the dewaterd organic waste; and a filter press configured to secondarily dewater the hydrothermally carbonized product discharged from the hydrothermal carbonization device.

An evaluation device for biogas materials is disclosed, comprising: an input unit configured to receive input regarding a machine learning library related to biogas materials or property data pertaining to biogas materials; a machine learning model that receives the machine learning library or the property data from the input unit; a learning process execution unit that trains the machine learning model using the machine learning library; and an evaluation value calculation execution unit that estimates evaluation values related to resource recovery of biogas materials by performing estimation processes based on the property data using the machine learning model. This configuration enables optimal matching of food waste sources, such as residual sludge and food loss, with biogas plants that conduct methane gasification using food waste, thereby improving the operational efficiency of biogas plants.

An integrated system for anaerobic digestion of organic solid waste, including a continuous stirred-tank reactor, a micro-voltage- and conductive material-enhanced reactor, and a micro-aeration and inert solid waste separation integrated reactor. The micro-electrolysis reactor includes a plate cover, a cylindrical tank body and two column bases. The plate cover is provided with a direct-current (DC) regulated power supply to apply a micro voltage. The cylindrical tank body is provided with a carbon fiber felt and a graphite rod as electrodes, on which electroactive anaerobic bacteria are distributed. Multiple iron-carbon layers are arranged in the tank body to optimize the interspecies electron transfer.

An integrated system for anaerobic digestion of organic solid waste, including a continuous stirred-tank reactor, a micro-voltage- and conductive material-enhanced reactor, and a micro-aeration and inert solid waste separation integrated reactor. The micro-electrolysis reactor includes a plate cover, a cylindrical tank body and two column bases. The plate cover is provided with a direct-current (DC) regulated power supply to apply a micro voltage. The cylindrical tank body is provided with a carbon fiber felt and a graphite rod as electrodes, on which electroactive anaerobic bacteria are distributed. Multiple iron-carbon layers are arranged in the tank body to optimize the interspecies electron transfer.