Abstract: Embodiments described herein relate to tray processing units for processing CO2 capture media. In some aspects a tray processing unit can include a loading dock configured to receive a caddy including trays disposed thereon, a collection station configured to receive trays from the loading dock and collect a carbonated medium from the trays, a filling station configured to transfer a carbonation medium to the trays, a first tray mover configured to transport the trays from the caddy at the loading dock to the collection station, an unloading dock configured to support the caddy while loading the caddy with trays, a second tray mover configured to transport trays from the collection station to the filling station, and a third tray mover configured to transport trays from the filling station to the caddy supported by the unloading dock.

Abstract: Embodiments described herein relate to systems, devices, and methods for uptake of CO2 from ambient air. In some aspects, a device can include a platform with a top portion and a bottom portion, an elevation mechanism configured to move the platform vertically, a plurality of orifices defined by the top portion of the platform, the plurality of orifices configured to dispense liquid toward a tray, and an actuator configured to move laterally along a bottom side of the top portion of the platform, the actuator configured to urge the tray to move laterally. In some embodiments, the bottom portion can support the tray as the tray moves laterally. In some embodiments, the elevation mechanism can include at least one of a chain or a linear actuator driven by a motor.