The use of water and added nutrients, for example, could drop markedly if engineers come up with ways to efficiently recycle used water and nutrients, perhaps even using nutrient-rich wastewater from agricultural or municipal sources. But for algal biofuels to reach their full potential, researchers will need to integrate these and other advances and ensure that at each stage algae is converted to fuels in the most sustainable way possible.
Comment:
Recycling used water? Wasn't there a good way of doing this? Seems like I read about this and reported on it at some point. Can't find it and I'm out of time.
Update:
Here it is.
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