Dr. María José Rivero attended the V National Meeting of Photocatalysis Groups and 2018 Joint UK&Ireland/Spain Semiconductor Photochemistry Meeting, celebrated in Las Palmas de Gran Canaria, on September 10-12th, 2018. During the events María José presented the work: M.J. Rivero, R. Ibáñez, A. Urtiaga, I. Ortiz. Challenges and developments in water treatments.