The ion pumps enabled by the technology we are working on won’t have external effects. They basically just filter out certain small molecules from the ocean into crystal storage.
What kind of flow rate would be necessary to pull CO2 out of the ocean faster than it dissolves from the air, and is that achievable without affecting the surroundings?
CO2 wouldn’t be pulled out of the ocean. You’d have to liquify it from air in a different process. The molecular pumps are used to extract dissolved ions or solutes from sea water and only act as fast as diffusion.