Hallum
The demonstration algae production plant algae is located in Hallum, Netherlands. Together with Kelstein, a dairy farm and biogas company, we grow algae on the wastestreams of the anaerobic digestionunit and the Combined Heat Power units. The installation provides us with energy, excess heat, and CO2 from the flue gas. These are all necessary elements for growing algae:
- Electricity for energy
- Excess heat for heating the water
- Flue gas (CO2) as a carbon , a sulphate and a nitrogen source
By using these wastestreams, we can grow algae in a cost efficient way, and contribute to the efficiency and the sustainability of the dairy farm at the same time.
We have built a system consisting of four LED supported photobioreactors, each with a volume of 25 m3 and three High Rate Raceway Ponds 1200 M3 workvolume. With our patented harvesting system, we use a low energy pre-concentration combined with a centrifuge. With the size 0f 100 M3 we currently have the biggest operational LED photobioreactor in Europe! Our results so far are succesfully growing algae in a continuous culture on the excess heat and flue gas. The facillity produces feed grade algae and has recently been certified by the international GMP+ organisation. The algae are valuable addtition to feed. We are currently experimenting with different pretreatment strategies with the aim to use the nitrogen and phosphate from digestate as a nutrient source.
 
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