Technologies and services

SCOPE

Hydrogen production

Maturity Level

TRL 5

Development Level

Pilot plant

Protection Level

Patent

Solar reactors for hydrogen production from wastewater  

Entity:

HACDOS Project. Design, construction and validation of solar photocatalytic panel-reactors for hydrogen production from wastewater. Treatment of wastewater from very diverse origins (domestic, industrial, agro-livestock) in progress. Evaluation of the suitability of the technology for each type of water, in progress. 

Challenges met

  • Energy recovery from wastewater. 
  • Low-cost production of green hydrogen from waste. 
  • Treatment of problematic wastewater due to toxicity or persistence of pollutants. 

Scope of application

We are currently conducting research to establish validation parameters and feasibility of the technology as a treatment method for many different types of water, in particular:  

  • Urban/domestic: Influents from sewage treatment plants, sewage sludge, sludge centrifugation residues
  • Industrial, water generated in processes related to production (food, pharmaceutical, paper, biodiesel, petrochemical industry, polymers)
  • Effluents from agricultural and livestock farms: Farm slurry

Very promising preliminary results have been obtained, including hydrogen production data with many of the waters studied so far.

Main publications

  1. A.V. Puga*, N. Barka, M. Imizcoz 
    Simultaneous H2 production and bleaching via solar photoreforming of model dye‐polluted wastewaters on metal/titania  ChemCatChem  13(6), 1513–1529, 2021 
  1. M. Imizcoz, A.V. Puga* 
    Assessment of photocatalytic hydrogen production from biomass or wastewaters depending on the metal co-catalyst and its deposition method on TiO2  Catalysts 9(7), 584, 2019 

Related projects

  • Solar hydrogen generation from wastewaters in inexpensive and scalable photocatalytic panels, HACDOS (CPP2021-008619) 

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