Inspenet, August 26, 2023.
Produce hydrogen from wastewater. It’s possible?
Significant studies are being carried out in Malaga in order to assess the feasibility of producing renewable hydrogen from wastewater treatment plants . Those who are in charge of this initiative are the company Conacon Sando in collaboration with the Technological Corporation of Andalusia, the University of Malaga and Sando Agua.
The idea is to transform the Wastewater Treatment Stations (EDAR) into facilities that generate renewable energy for use in other sectors. If this approach proves viable, the project will have a positive impact on energy efficiency and the promotion of the circular economy by taking advantage of waste from other activities .
The purpose of this project is to improve the efficiency of biogas generation processes from sewage sludge, as well as to increase its content of renewable hydrogen obtained through photovoltaic electrolysis . This is pursued with the objective of achieving a considerable increase in the production of gaseous biofuels with high energy capacity.
The feasibility analysis will be in charge of examining the aptitude of the biogas to be converted into biomethane, as well as investigating its capacity, through the renewable oxygen produced by means of electrolysis, to generate green hydrogen. Similarly, a subsequent research project following this study will evaluate the feasibility of using biomethane and renewable hydrogen as energy agents or feedstocks.
Carlos García, technical director of the CTA Building and Civil Works sector, believes that this project marks a paradigm shift in the perception and management of WWTPs. Instead of focusing exclusively on waste treatment, these facilities will be transformed into renewable energy production and distribution centers .