I recently stumbled upon this fascinating technology and was just curious what you guys thought of it.
Its the idea that growing algae on the exhaust pipes from power station would essentially be recycling. This of course would be done via photosynthesis from the carbon dioxide being emitted from the stations.
2 things that come to my mind:
- why not just plant trees to use the CO2? They are much easier to grow than algae.
- at least for human consumption, CO2 must be biogenic (produced by living organisms = not a byproduct of chemical process or burning). The reason is that abiogenic CO2 is accompanied by several other harmful chemicals. Removing these chemicals might not be (just guessing) economical or environmentally friendly.