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Water consumption by human welfare, agriculture, and industry generate different types of wastewater, the treatment of which depends on their physicochemical and biological composition. Selecting the most efficient treatment method requires a combination of different processes, but comes with high electricity consumption, financial costs, and greenhouse gas (GHG) emissions. Furthermore, this contradicts the objectives stated in the United Nations’ 2030 Agenda for Sustainable Development. This chapter proposes a new solution “solar wastewater treatment (SOWAT)” based on the evaporation is driven by solar energy, aiming at sustainability but above all efficiency and ease of scalability. It summarizes the treatment of samples representing various wastewater types (domestic, urban, and industrial wastewater) that are carried out in a greenhouse solar still. The obtained results show that the treated wastewater quality is significantly improved considering BOD, COD, total suspended solids, fecal coliforms, heavy metals, and dissolved salts. The SOWAT results provide encouraging avenues for the generation of green hydrogen through the PV-water electrolysis system, aiming for carbon neutrality across the entire chain of production.

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Solar Energy to Treat all Types of Wastewater for Reuse in Green H2 Production by PV-Electrolysis

  • 章节

  • 发表日期：

    2025年

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  • Sadek Igoud,
  • Lamine Aoudjit,
  • Aïcha Sebti,
  • Belgassim Boutra,
  • Fatiha Souahi,
  • Chems-Eddine Chitour,
  • Djamel Zeriri,
  • Amel Mameche

摘要

Water consumption by human welfare, agriculture, and industry generate different types of wastewater, the treatment of which depends on their physicochemical and biological composition. Selecting the most efficient treatment method requires a combination of different processes, but comes with high electricity consumption, financial costs, and greenhouse gas (GHG) emissions. Furthermore, this contradicts the objectives stated in the United Nations’ 2030 Agenda for Sustainable Development. This chapter proposes a new solution “solar wastewater treatment (SOWAT)” based on the evaporation is driven by solar energy, aiming at sustainability but above all efficiency and ease of scalability. It summarizes the treatment of samples representing various wastewater types (domestic, urban, and industrial wastewater) that are carried out in a greenhouse solar still. The obtained results show that the treated wastewater quality is significantly improved considering BOD, COD, total suspended solids, fecal coliforms, heavy metals, and dissolved salts. The SOWAT results provide encouraging avenues for the generation of green hydrogen through the PV-water electrolysis system, aiming for carbon neutrality across the entire chain of production.