RT journal article
T1 UV-based technologies for marine water disinfection and the application to ballast water: Does salinity interfere with disinfection processes?
A1 Moreno Andrés, Javier
A1 Romero Martínez, Leonardo
A1 Acevedo Merino, Asunción
A1 Nebot Sanz, Enrique
A2 Tecnologías del Medio Ambiente
K1 E. faecalis
K1 UV-based treatments
K1 Seawater disinfection
K1 Salinity interference
K1 UV-dose
K1 Ballast water
AB Water contained on ships is employed in the majority of activities on a vessel; therefore, it is necessary to correctly manage through marine water treatments. Among the main water streams generated on vessels, ballast water appears to be an emerging global challenge (especially on cargo ships) due to the transport of invasive species and the significant impact that the ballast water discharge could have on ecosystems and human activities. To avoid this problem, ballast water treatment must be implemented prior to water discharge in accordance with the upcoming Ballast Water Management Convention. Different UV-based treatments (photolytic: UV-C and UV/H2O2, photocatalytic: UV/TiO2), have been compared for seawater disinfection. E. faecalis is proposed as a biodosimeter organism for UV-based treatments and demonstrates good properties for being considered as a Standard Test Organism for seawater. Inactivation rates by means of the UV-based treatments were obtained using a flow-through UV-reactor. Based on the two variables responses that were studied (kinetic rate constant and UV-Dose reductions), both advanced oxidation processes (UV/H2O2 and photocatalysis) were more effective than UV-C treatment. Evaluation of salinity on the processes suggests different responses according to the treatments: major interference on photocatalysis treatment and minimal impact on UV/H2O2.
PB The Science of the Total Environment
SN 1879-1026
YR 2017
FD 2017-03-01
LK http://hdl.handle.net/10498/29713
UL http://hdl.handle.net/10498/29713
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026