Luis Cáceres Villanueva,^* Jose Delatorre,^** Fernando De la Riva,^*** Vinka Monardes<sup>****


*</sup>Luis Cáceres Villanueva is associate professor at the Universidad de Antofagasta, Departamento de Ingeniería Química where he teaches chemical engineering courses. He is also researcher at the Instituto del Desierto. His research area is wastewater treatment and reuse. His address: Universidad de Antofagasta, Instituto del Desierto, Casilla 170, Antofagasta, Chile. lcaceres@uantof.cl
^**Jose Delatorre is associate professor at the Universidad Arturo Prat Departamento de Agricultura del Desierto and researcher at the Centro de Investigaciones del Hombre del Desierto. He teaches courses related to plant nutrition. His research area is plant nutrition in arid regions. His address: Universidad Arturo Prat, Departamento de Agricultura del Desierto, Casilla 121, Iquique, Chile. jose.delatorre@unap.cl
^***Fernando De la Riva is a researcher at the Universidad de Tarapacá, Facultad de Agronomía in Arica. His research area is ornamental plant cultivation techniques. His address: Universidad de Tarapacá, Instituto de Agronomía, Casilla 6 D, Arica, Chile. fdelariv@uta.cl
^****Vinka Monardes is an active researcher at the Universidad de Antofagasta, Instituto del Desierto. Her area of research is water and wastewater treatment. Her address: Universidad de Antofagasta, Instituto del Desierto, Casilla 170, Antofagasta, Chile. vmonardes@uantof.cl