The present disclosure provides a system for CO.sub.2 storage and utilization of a concrete mixing plant and a method thereof. The system includes a slurry making module, a cyclic grinding module and a material storage and application module. The cyclic grinding module can grind, in the presence of a gas containing CO.sub.2 and medium balls, a composite slurry prepared by the slurry making module, and can cyclically use the gas containing CO.sub.2, so as to realize continuous production of a carbon-mineralized slurry. The material storage and application module includes a material storage bin and a mixing machine connected with each other, and the material storage bin is configured to receive and store the carbon-mineralized slurry from a slurry bin. The mixing machine is configured to mix and prepare the carbon-mineralized slurry into a commodity concrete.

The present disclosure provides a system for CO.sub.2 storage and utilization of a concrete mixing plant and a method thereof. The system includes a slurry making module, a cyclic grinding module and a material storage and application module. The cyclic grinding module can grind, in the presence of a gas containing CO.sub.2 and medium balls, a composite slurry prepared by the slurry making module, and can cyclically use the gas containing CO.sub.2, so as to realize continuous production of a carbon-mineralized slurry. The material storage and application module includes a material storage bin and a mixing machine connected with each other, and the material storage bin is configured to receive and store the carbon-mineralized slurry from a slurry bin. The mixing machine is configured to mix and prepare the carbon-mineralized slurry into a commodity concrete.

A method for preparing a biomass slurry for subterranean injection can include obtaining a quantity of a biomass slurry feedstock from a source, wherein the biomass slurry feedstock comprises a plurality of pieces, where the biomass slurry feedstock comprises a composite of cellulose in a lignin matrix, hemicellulose fibers in a lignin matrix, or any combination thereof, and where each of the plurality of pieces has a size not to exceed approximately 60,000 m. The method can also include obtaining a volume of a fluid, where the fluid comprises a salt content of at least approximately 0.05%. The method can further include mixing the plurality of pieces and the volume of fluid to form the biomass slurry, where the plurality of pieces are substantially evenly distributed within the fluid, and where the biomass slurry is configured to be used in the subterranean injection.

A method for producing a suspension, the method including feeding water by a pump from a storage container through a mixing chamber; mechanically comminuting plant parts from real nuts, kernels, grains, and/or seeds by a comminuting element to form comminuted plat parts; mixing the comminuted plant parts with the water in the mixing chamber to form a mix; pressing the mix through a filter that passes the suspension through and retains a pomace that remains from the plant parts, wherein a pump wheel of the pump forms the comminuting element.

A system for preparing a biomass slurry for subterranean injection can include a mixing apparatus having a vessel and a first input to the vessel, where the first input is configured to receive a plurality of pieces of a biomass slurry feedstock, where each of the plurality of pieces has a size not to exceed approximately 60,000 m. The mixing apparatus may also include a second input to the vessel, where the second input is configured to receive a fluid to the vessel, and wherein the fluid comprises a salt content of at least approximately 0.05%. The mixing apparatus may further include a mixer configured to combine the plurality of pieces of the biomass slurry feedstock and the fluid within the vessel to form the biomass slurry, and an output to the vessel that is configured to deliver the biomass slurry to a conveyance system for the subterranean injection.