We use open pond systems. Now, around the world they are growing algae, with this racetrack design that you see here. Looks like an oval with a paddle wheel and mixes really well, but when it gets around the last turn, which I call turn four — it's stagnant.
On utilise des réservoirs ouverts. Là où on cultive des algues dans le monde, Un grande piscine ovale avec une roue de mixage. Cela mélange bien. Mais quand on arrive au dernier tournant, le quatrième, cela stagne.