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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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On board short-time high temperature heat treatment of ballast water: a field trial under operational conditions Quilez-Badia, G.; McCollin, T.; Josefsen, K.D.; Vourdachas, A.; Gill, M.E.; Mesbahi, E.; Frid, C.L.J. (2008). On board short-time high temperature heat treatment of ballast water: a field trial under operational conditions. Mar. Pollut. Bull. 56(1): 127-135. dx.doi.org/10.1016/j.marpolbul.2007.09.036 In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 132166 [ aanvragen ]

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Trefwoorden

Aquatic communities > Plankton > Phytoplankton Aquatic communities > Plankton > Zooplankton Ballast tanks Microorganisms > Bacteria Bacteria [WoRMS] Marien/Kust

Author keywords

phytoplankton; zooplankton; bacteria; high temperature heat treatment; IMO standard; ballast water treatment

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Auteurs		Top
Quilez-Badia, G. McCollin, T. Josefsen, K.D. Vourdachas, A.	Gill, M.E. Mesbahi, E. Frid, C.L.J., meer

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Abstract

A ballast water short-time high temperature heat treatment technique was applied on board a car-carrier during a voyage from Egypt to Belgium. Ballast water from three tanks was subjected for a few seconds to temperatures ranging from 55 °C to 80 °C. The water was heated using the vessel’s heat exchanger steam and a second heat exchanger was used to pre-heat and cool down the water. The treatment was effective at causing mortality of bacteria, phytoplankton and zooplankton. The International Maritime Organization (IMO) standard was not agreed before this study was carried out, but comparing our results gives a broad indication that the IMO standard would have been met in some of the tests for the zooplankton, in all the tests for the phytoplankton; and probably on most occasions for the bacteria. Passing the water through the pump increased the kill rate but increasing the temperature above 55 °C did not improve the heat treatment’s efficacy.

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