4 ms·

Looks very cool, but I was disappointed not to see any numbers. Has anyone heard what this kind of thing costs, and how much CO2 it removes?

KaiserPro 7y ago
custom glass, unknown aeration systems, pumping and filtering. Its not going to be cheap.
ozaark 7y ago
For CO2 removal the article says they "can remove carbon dioxide and produce breathable oxygen at a rate equivalent to a hundred trees from the surface area of just a single tree". Trees sequester ~48 lbs of CO2 per year.[1][2] So 48*100 = ~4800lbs CO2 removed per year for this project. As others have said I'm interested to see if they can do it cost effectively. [1] https://projects.ncsu.edu/project/treesofstrength/treefact.htm https://projects.ncsu.edu/project/treesofstrength/treefact.h... [2] http://urbanforestrynetwork.org/benefits/air%20quality.htm http://urbanforestrynetwork.org/benefits/air%20quality.htm
- gpm 7y ago
  Humans exhale something around 2.3 pounds of CO2 per day [0], 2.3 * 365 = 839.5 pounds per year, 4800 / 839.5 = 5.7 people per "surface area of a tree". That might be small enough that this can keep the CO2 level constant in a office... The average american carbon footprint is 19.8 tonnes per year [1], 19.8 tonnes / 4800 (pounds / "sa tree") = 9.082 surfaces areas of a tree per person to eliminate their carbon footprint. That's a lot better than I expected really... somewhat doubt my numbers. (All number here have huge standard deviations, decimal points on the approximation should not be read as indicators of variance). [0] https://www.reference.com/science/much-co2-human-exhale-3f8cfdd9076c129 https://www.reference.com/science/much-co2-human-exhale-3f8c... [1] https://www.theguardian.com/environment/datablog/2009/sep/02/carbon-emissions-per-person-capita https://www.theguardian.com/environment/datablog/2009/sep/02...

4 ms·

Looks very cool, but I was disappointed not to see any numbers. Has anyone heard what this kind of thing costs, and how much CO2 it removes?

by burlesona 7y ago

KaiserPro 7y ago
custom glass, unknown aeration systems, pumping and filtering. Its not going to be cheap.
ozaark 7y ago
For CO2 removal the article says they "can remove carbon dioxide and produce breathable oxygen at a rate equivalent to a hundred trees from the surface area of just a single tree". Trees sequester ~48 lbs of CO2 per year.[1][2] So 48*100 = ~4800lbs CO2 removed per year for this project. As others have said I'm interested to see if they can do it cost effectively. [1] https://projects.ncsu.edu/project/treesofstrength/treefact.htm https://projects.ncsu.edu/project/treesofstrength/treefact.h... [2] http://urbanforestrynetwork.org/benefits/air%20quality.htm http://urbanforestrynetwork.org/benefits/air%20quality.htm
- gpm 7y ago
  Humans exhale something around 2.3 pounds of CO2 per day [0], 2.3 * 365 = 839.5 pounds per year, 4800 / 839.5 = 5.7 people per "surface area of a tree". That might be small enough that this can keep the CO2 level constant in a office... The average american carbon footprint is 19.8 tonnes per year [1], 19.8 tonnes / 4800 (pounds / "sa tree") = 9.082 surfaces areas of a tree per person to eliminate their carbon footprint. That's a lot better than I expected really... somewhat doubt my numbers. (All number here have huge standard deviations, decimal points on the approximation should not be read as indicators of variance). [0] https://www.reference.com/science/much-co2-human-exhale-3f8cfdd9076c129 https://www.reference.com/science/much-co2-human-exhale-3f8c... [1] https://www.theguardian.com/environment/datablog/2009/sep/02/carbon-emissions-per-person-capita https://www.theguardian.com/environment/datablog/2009/sep/02...