• español
    • English
    • português
  • English 
    • español
    • English
    • português
  • Login
View Item 
  •   Home
  • Productos de Investigación - Creación
  • Artículos de Investigación Indexados
  • Año 2018
  • View Item
  •   Home
  • Productos de Investigación - Creación
  • Artículos de Investigación Indexados
  • Año 2018
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
JavaScript esta deshabilitado en su navegador. Algunas características de este sitio no podrán funcionar o visualizarse correctamente sin JavaScript.
RecursosRecursos de apoyo¿Cómo publicar?

Browse

All of ExpeditioCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

Statistics

View Usage StatisticsView Google Analytics Statistics
Estadísticas GTMVer Estadísticas GTM

Zooplankton sensitivity and phytoplankton regrowth for ballast water treatment with advanced oxidation processes

Thumbnail

Citación

       
Export: <XML METS>
View/Open
Ver portada (143.3Kb)
Fin embargo: 
Artículo reservado (1.122Mb)
Fin embargo: 
Date
2018
Author
García-Garay, Juan
Franco-Herrera, Andrés
Machuca-Martinez, Fiderman
Metadata
Show full item record
Documentos PDF
Imagenes y Videos
Captura.PNG

Abstract
The ballasting and de-ballasting of ships are two necessary operations with ballast water that provide stability for safe navigation. Empty ships must ballast tanks with water, which contains living organisms and subsequently carries them away from their original distribution. De-ballasting represents an input of still viable zooplankton, phytoplankton, and microorganisms in the destination port, leading to the introduction of alien species, and consequently, the introduction of organisms will alter the local biodiversity. Ballast water treatment is necessary to comply with the International Maritime Organization (IMO) for the maximum viable organisms permitted. It is known that UVC eliminates microorganisms, but there are few studies on the other taxonomical groups, such as phytoplankton and zooplankton. The advance oxidation processes (AOPs) with UV-C can be a good alternative to manage the problem of ballast water, primarily for microorganisms. However, for larger organisms, there is more resistance, and, a stage with filtration (by physical filtration or hydrocyclone) is usually required. The filter can fail, or certain zooplankton organisms can escape across the filter and go to the AOPs or UVC reactor. According to the taxonomic group, there can be a different sensitivity to the treatment, and one could survive and generate a risk. The AOPs tested were natural solar radiation (RAD), UV/H2O2, UV/TiO2, UV/TiO2/H2O2, and UV/TiO2/H2O2/RAD. Natural sea water was pumped and treated with the AOPs. The vital zooplankton organisms counted were polychaetes, cladocerans, ostracods, nauplii and calanoid, cyclopoid, and harpacticoid copepods. For the phytoplankton, the abundance was estimated, and the photosystem II efficiency was determined. To evaluate the phytoplankton regrowth after the treatments, the treated water was stored and populations counted for 20 days. The most effective treatment for the zooplankton groups was UVC/H2O2. Regarding the sensitivity, the cyclopoid copepods were the most resistant. The nauplii and polychaetes were more likely to be killed by the AOPs, greatly decreasing the risk from nauplii due to their abundance and ease of passing through the filters with their smaller size. Phytoplankton regrowth was observed in all treatments, and it even reached abundance values higher than in the intake water. For instance, additional dark conditions and retreatment on days 3 or 5 are suggested for any treatment.
URI
http://hdl.handle.net/20.500.12010/8812
Link to resource
https://doi.org/10.1007/s11356-018-2308-4
Collections
  • Año 2018 [154]
Estadísticas Google Analytics
Comments

Respuesta Comentario Repositorio Expeditio

Gracias por tomarse el tiempo para darnos su opinión.


Carrera 4 # 22-61 Teléfono: (+57 1) 242 7030 - 018000111022 Fax: (+57 1) 561 2107 Bogotá D.C., Colombia

Fundación Universitaria de Bogotá Jorge Tadeo Lozano | Vigilada Mineducación

Institución de educación superior privada, de utilidad común, sin ánimo de lucro y su carácter académico es el de Universidad.

Reconocimiento personería jurídica: Resolución 2613 del 14 de agosto de 1959 Minjusticia.

Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional.

 

Términos y condiciones | Políticas

 

 


Carrera 4 # 22-61 Teléfono: (+57 1) 242 7030 - 018000111022 Fax: (+57 1) 561 2107 Bogotá D.C., Colombia

Fundación Universitaria de Bogotá Jorge Tadeo Lozano | Vigilada Mineducación

Institución de educación superior privada, de utilidad común, sin ánimo de lucro y su carácter académico es el de Universidad.

Reconocimiento personería jurídica: Resolución 2613 del 14 de agosto de 1959 Minjusticia.

Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional.

 

Términos y condiciones | Políticas