A raceway pond is a widely applied open micro-algae cultivation
system, named after its specific shape, see Fig. 3. Raceway
ponds are usually paddle wheel mixed, common sizes range between
300 and 4000 m2 with on average a depth of 20–30 cm
[40]. Raceway ponds, common productivity range 5–35 g dry algae
biomass per square meter per day, are extensively discussed in literature
[17,16,30,19].