This project concerns the processing of brewery process water with the aid of algae. Purification of process water is a cost for companies and also valuable nutrients (nitrogen and phosphorus) are lost using the current methods. The cultivation of algae might achieve a win-win situation. The algae take in the nitrogen and phosphorus, leaving clean water behind, while the produced algal biomass can be sold on. Research on a semi-practical scale with LED reactors, shows that regarding purification, a similar result to the current treatment is already being achieved. However, some improvements are still needed. The purification should be even better (lower nitrogen and phosphorus levels) to meet environmental requirements for discharge into surface water, energy consumption must be reduced, and a pre-treatment of wastewater is required to extract the solid particles before growing algae.
For more information please contact Rommie van der Weide, tel.: 0320-291631 or Wim van Dijk, tel.: 0320-291543.