Taxiarchis Seintos is a PhD student at the School of Civil Engineering of the National Technical University of Athens. He is a Civil Engineer with a Postgraduate Degree of Specialization in Water Resources Science and Technology. His area of expertise is on domestic wastewater treatment and decentralized applications. His research includes the development of anaerobic digestion technologies and nature-based solutions (NBS) such as constructed wetlands (CWs) towards sustainable treatment and wastewater reuse.