Abstract
An algae-based closed-loop system in a sustainable residential community that integrates waste stream management with energy generation is modeled. The sustainable material and energy cycle of microalgae for a residential building community is analyzed by schematic flow diagrams. A process simulation model for this integrated system is developed to evaluate the sustainability of the conceptual algae-based closed-loop residential community using system dynamics. The model reveals that this smart self-sustainable pattern through waste-to-energy microalgae technology - anaerobic digestion and renewable energy crops – can achieve sustainability in providing treated water, fertilizer, animal feed and energy for use, as well as reducing waste water emissions, resource consumption and environmental impacts in waste management.
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