Case study – Kujalan Komposti Oy
The concept of integrating microalgal cultivation into a biowaste management
center was assessed using Kujalan Komposti Oy’s process as a case study. The
study included a scenario in which the algae would utilize spill heat and CO2 from
the composting plant and the residual microalgal biomass after lipid extraction
would be utilized as a biogas co-substrate Fig. 5). The area allocated for algal
cultivation was 2.2 ha (Fig. 6). The feasibility study was done using results from
laboratory scale tests (algal growth rates and removal of nutrients originating from
organic waste streams). Due to restricted resources, the role of illumination, CO2,
nutrients and heat variation were not examined