RT Journal Article
T1 Effect of Static Magnetic Fields on the Composition of Marine Biofouling in Seawater Transportation Pipelines
A1 Ostojic, Carol
A1 Serrano, Génesis
A1 Ferrada, Pablo
A1 Escalona, Mauricio
A1 Jiménez, Víctor
A1 González, María Teresa
A1 Maureira, Alejandro
A1 Panico, Antonio
A1 Zapata, Manuel
A1 Rivas, Mariella
AB The use of seawater for mining purposes in Chile has progressively increased in recent years as fast as the interest on the negative effects of biofouling on the inner part of pipelines used to transport seawater. To prevent biofouling, chemical antifouling compounds are traditionally used, thus, causing negative environmental impacts. The aim of this research has, therefore, been to evaluate the efficiency of static magnetic fields (SMF) generators to mitigate the biofouling. Hence, experimental activities have been conducted on high density polyethylene (HDPE) pipes equipped with neodymium magnets during two experimental periods in the year of 2019, i.e., autumn–winter (A–W) and spring–summer (S–S), and under two types of SMF, i.e., continuous-type (PCS) and pulse-type (PPS). Physicochemical parameters and cell viability of microorganisms composing the biofilm were investigated. Metagenomic analyses on biofilm were conducted as well. The results showed that the cell viability was the highest, i.e., 757,780 cells/cm2, during S–S and the lowest, i.e., 349,151 cells/cm2, in A–W, both under PCS. In S–S, as well as A–W, biofilm was characterized for the most abundant eukaryotic operational taxonomic units (OTUs) under PPS conditions. The presence of OTUs, such as Articiflavibacter spp., Chaetonotida spp. and Desmodorida spp., was observed only from SMF tests.
PB MDPI
SN 2073-4441 (electrónico)
YR 2022
FD 2022-10
LK https://hdl.handle.net/10272/22112
UL https://hdl.handle.net/10272/22112
LA eng
NO Ostojic, C., Serrano, G., Ferrada, P., Escalona, M., Jiménez, V., González, M. T., Maureira, A., Panico, A., Zapata, M., & Rivas, M. (2022). Effect of Static Magnetic Fields on the Composition of Marine Biofouling in Seawater Transportation Pipelines. In Water (Vol. 14, Issue 21, p. 3362). MDPI AG. https://doi.org/10.3390/w14213362
NO This research was funded by ANID/FONDEF/IDEA, grant number ID15I10487, and, in part, by the Programa Semilleros de Investigación: “Caracterización de una línea base para el análisis y determinación de los componentes celulares”, by the Fondo para el Desarrollo en investigación científica y/o tecnológica de actividades de titulación de pregrado 2018: “Producción de metabolitos de alto valor económico mediante exposición a un campo magnético estático tipo continuo y tipo pulso en las microalgas Scenedesmus obliquus y Nannochloropsis gaditana”, by Programa Asignación año 2021 de Asistentes de investigación de la Universidad de Antofagasta código ANT20992 and partially supported by “Antonio Panico visit at the Universidad de Antofagasta” and supported by MINEDUC-UA project code ANT1999.
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026