Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture ammonia with a gaseous source of CO2 under conditions sufficient to produce an aqueous ammonium carbonate. The aqueous ammonium carbonate is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate and an aqueous ammonium salt. The aqueous capture ammonia is then regenerated from the from the aqueous ammonium salt. Also provided are systems configured for carrying out the methods.

Abstract: Geomass mediated carbon dioxide (CO2) sequestering methods and systems are provided. Aspects of the methods include contacting a gaseous source of CO2 and an aqueous capture ammonia to produce a CO2 sequestering product and an aqueous ammonium salt, and then contacting the aqueous ammonium salt liquid with a geomass, e.g., alkaline waste product, to regenerate the aqueous capture ammonia. Also provided are systems configured for carrying out the methods.

Abstract: Methods of producing solid CO2 sequestering carbonate materials are provided. Aspects of the methods include introducing a divalent cation source into a flowing aqueous liquid (e.g., a bicarbonate rich product containing liquid) under conditions sufficient such that a non-slurry solid phase CO2 sequestering carbonate material is produced. Also provided are systems configured for carrying out the methods.

Abstract: A bipod support for a drain cleaning machine is described. The bipod support includes a base, a plurality of legs, a retaining member, and a latch. The retaining member and latch are configured to engage and secure the drain cleaning machine to the bipod support. The bipod support enables rocking movement of the drain cleaning machine while supporting the weight of the machine. Also described are related methods of use of the bipod support.

Abstract: Methods of producing cured CO2 sequestering solid compositions, e.g., precipitate or aggregate compositions, are provided. Aspects of the methods include preparing an initial CO2 sequestering solid composition, and then contacting the initial composition with a curing liquid sufficient to produce a cured CO2 sequestering solid composition. Also provided are systems for performing the methods and cured CO2 sequestering solid compositions produced therefrom.

Abstract: Gaseous CO2 capture systems are provided. Systems of interest include a plurality of gaseous CO2 sources and at least one common CO2 capture constraining element shared by the plurality of CO2 sources. The subject systems are configured to improve at least one gaseous CO2 capture performance metric relative to a suitable control. Gaseous CO2 capture systems involving power plants, industrial plants, common mineralization capture system feed sources, common electrical grids, and common building material producers are also provided.

Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture liquid, such as an aqueous capture ammonia, with a direct air capture (DAC) generated gaseous source of CO2 under conditions sufficient to produce an aqueous carbonate liquid, such as an aqueous ammonium carbonate. The aqueous carbonate liquid is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate. Also provided are systems configured for carrying out the methods.

Abstract: A drain cleaner is disclosed having a housing with an interior region for storing a flexible drain cleaning cable. The drain cleaning cable can be extended from the drain cleaner and includes a rotatable member within a non-rotating sheath. The drain cleaner includes an engageable drive shaft coupled to the rotatable member. In certain versions, the drive shaft is coupled to the rotatable member through a torque limiting device such as a clutch. Upon engagement of the drive shaft with a rotary power source, a rotating distal end of the flexible cable can be used to dislodge obstructions in pipes. The interior region of the drain cleaner is configured to promote efficient coiling of the drain cleaning cable. The drain cleaner includes additional features for reducing wear of cable and components, and securely retaining the cable to the drain cleaner.

Abstract: Methods and systems for conditioning a CO2 containing multi-component gaseous stream for use in a CO2 sequestration process are provided. Aspects of the methods include cooling the CO2 containing multi-component gaseous stream and/or removing physical components (such as, moisture, particulates, and pollutants) to condition the CO2 containing multi-component gaseous stream.

Abstract: Aspects of the invention include methods of removing carbon dioxide (CO2) from a CO2 containing gas. In some instances, the methods include contacting CO2 containing gas with a bicarbonate buffered aqueous medium under conditions sufficient to produce a bicarbonate rich product. Where desired, the resultant bicarbonate rich product or a component thereof may then be stored or further processed, e.g., combined with a divalent alkaline earth metal cation, under conditions sufficient to produce a solid carbonate composition. Aspects of the invention further include systems for practicing the methods, as well as products produced by the methods.

Abstract: Aspects of the invention include methods of removing carbon dioxide (CO2) from a CO2 containing gas. In some instances, the methods include contacting CO2 containing gas with a bicarbonate buffered aqueous medium under conditions sufficient to produce a bicarbonate rich product. Where desired, the resultant bicarbonate rich product or a component thereof may then be stored or further processed, e.g., combined with a divalent alkaline earth metal cation, under conditions sufficient to produce a solid carbonate composition. Aspects of the invention further include systems for practicing the methods, as well as products produced by the methods.

Abstract: A reduced-carbon footprint concrete composition includes CO2-sequestering aggregate that sequesters carbon dioxide (CO2) from a CO2 containing gas and cementitious material. The reduced-carbon footprint concrete composition has a reduced carbon footprint relative to an ordinary concrete composition.

Abstract: A negative-carbon footprint concrete composition includes CO2-sequestering aggregate that sequesters carbon dioxide (CO2) from a CO2 containing gas and cementitious material. The negative-carbon footprint concrete composition has a negative carbon footprint relative to an ordinary concrete composition.

Abstract: Aspects of the invention include methods of removing carbon dioxide (CO2) from a CO2 containing gas. In some instances, the methods include contacting CO2 containing gas with a bicarbonate buffered aqueous medium under conditions sufficient to produce a bicarbonate rich product. Where desired, the resultant bicarbonate rich product or a component thereof may then be stored or further processed, e.g., combined with a divalent alkaline earth metal cation, under conditions sufficient to produce a solid carbonate composition. Aspects of the invention further include systems for practicing the methods, as well as products produced by the methods.

Abstract: Methods of sequestering CO2 from a gaseous source of CO2 are provided. Aspects of the methods include employing an alkali enrichment protocol, such as a membrane mediated alkali enrichment protocol, in a CO2 sequestration protocol. Also provided are systems for practicing the methods.

Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture ammonia with a gaseous source of CO2 under conditions sufficient to produce an aqueous ammonium carbonate. The aqueous ammonium carbonate is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate and an aqueous ammonium salt. The aqueous capture ammonia is then regenerated from the from the aqueous ammonium salt. Also provided are systems configured for carrying out the methods.

Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture ammonia with a gaseous source of CO2 under conditions sufficient to produce an aqueous ammonium carbonate. The aqueous ammonium carbonate is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate and an aqueous ammonium salt. The aqueous capture ammonia is then regenerated from the from the aqueous ammonium salt. Also provided are systems configured for carrying out the methods.

Abstract: Methods of producing solid CO2 sequestering carbonate materials are provided. Aspects of the methods include introducing a divalent cation source into a flowing aqueous liquid (e.g., a bicarbonate rich product containing liquid) under conditions sufficient such that a non-slurry solid phase CO2 sequestering carbonate material is produced. Also provided are systems configured for carrying out the methods.

Abstract: Augers that utilize a drain cleaning cable which can be rotated and selectively extended or retracted from the auger are described. The augers utilize coupling assemblies that enable easy coupling or decoupling between the drain cleaning cable and a torque transmission shaft of the auger.

Abstract: Methods of producing solid CO2 sequestering carbonate materials are provided. Aspects of the methods include introducing a divalent cation source into a flowing aqueous liquid (e.g., a bicarbonate rich product containing liquid) under conditions sufficient such that a non-slurry solid phase CO2 sequestering carbonate material is produced. Also provided are systems configured for carrying out the methods.