RT journal article
T1 Improving the microalgae inactivating efficacy of ultraviolet ballast water treatment in combination with hydrogen peroxide or peroxymonosulfate salt
A1 Romero Martínez, Leonardo
A1 Rivas Zaballos, Ignacio
A1 Moreno Andrés, Javier
A1 Moreno-Garrido, Ignacio
A1 Acevedo Merino, Asunción
A1 Nebot Sanz, Enrique
A2 Biología
A2 Tecnologías del Medio Ambiente
K1 Ballast water
K1 Ultraviolet disinfection
K1 Advanced oxidation processes
K1 Hydrogen peroxide
K1 Persulfate
K1 Tetraselmis suecica
AB Due to the increasing number of ecosystem invasions with the introduction of exogenous species via ballast water, the International Maritime Organization adopted the Ballast Water Convention (BWMC). The BWMC establishes standards for the concentration of viable organisms in a ballast water discharge. Ultraviolet (UV) irradiation is commonly used for treating ballast water; however, regrowth after UV irradiation and other drawbacks have been reported. In this study, improvement in UV treatment with the addition of hydrogen peroxide or peroxymonosulfate salt was investigated using the microalgae Tetraselmis suecica as the target organism. Results reported that each of these reagents added in a concentration of 10 ppm reduced the concentration of initial cells by more than 96%, increased the UV inactivation rate, and enabled reaching greater level of inactivation with the treatment. These improvements imply a reduction of the UV doses required for a consistent compliance with the BWMC standards.
PB Elsevier
SN 1879-3363
YR 2021
FD 2021
LK http://hdl.handle.net/10498/34445
UL http://hdl.handle.net/10498/34445
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026