Back to knowledge

Waste to energy in buildings

Grinded Bio Waste and Blackwater (water from toilets or kitchens) generated in households can be treated in Anaerobic Membrane Bio-Reactors (AnMBR) for the recovery of:

  • Reuse of treated blackwater ( >90%) for toilet or fertigation,
  • Compost: The sludge from the anaerobic digester can be emptied regularly to produce high-quality compost.
  • Renewable energy. Absorption technologies can be used to ensure biogas quality. The solution would also include biogas cleaning to increase CH4 content (>80%) and potential storage in inflatable and impermeable fabrics. This energy storage can be further used for potential grid injection, use in µCHP, or combustion in a natural gas boiler. This solution supports the NetZeroEnergy Building (NZEB) or passive house claims to reach full autonomy (100%) even in winter times (December-February), when heating systems are mostly needed, and sun heating will not be easily available. In terms of biogas uses, this solution can be adapted to fit with energy, cogeneration or accumulation requirements of buildings.

Source: Mengjiao, Gao, et al. (2020) High-loading food waste and blackwater anaerobic co-digestion: Maximizing bioenergy recovery. Chemical Engineering Journal, 394, 124911. https://doi.org/10.1016/j.cej.2020.124911

Product life cycle stages & Modules (EN15978): C3 Waste processing + C4 Landfill + D Reuse and Recycling + D Energy recovery

Comments ()


Circular economyCitizen participationClimate resilienceLocal resourceSoilWasteWaterBuildingEnergy
Under license CC BY-NC-SA
This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. If you remix, adapt, or build upon the material, you must license the modified material under identical terms.