查看文章

This chapter discusses the potential of wastewater as a nutrient source for microalgae cultivation. Different cultivation systems can be utilized for the dual purposes of wastewater treatment and algal biomass production. Furthermore, biomass production enhancement through CO₂ supplementation using waste CO₂ streams is considered. Once the biomass is produced, it could be converted into biomethane through anaerobic digestion (AD). A closed-loop approach is an interesting way to reuse the algal digestate obtained from AD processes for microalgal cultivation. This minimizes the environmental impacts from the disposal of slurry and simultaneously offsets the nutrient requirements for microalgal cultivation. The technoeconomic feasibility can be understood using lifecycle assessment tools for exploiting the concept on a commercial scale.