So the column actually had another very nice feature, and that is the algae settle in the column, and this allowed us to accumulate the algal biomass in a context where we could easily harvest it.
Vlastně ten trychtýř měl ještě  jinou velmi dobrou vlastnost, a to, že se v něm řasy usazují, což nám dovoluje sbírat tuto řasovou biomasu a jednoduše ji sklidit.