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Ship board testing of a deoxygenation ballast water treatment

Lookup NU author(s): Gemma Quilez-Badia, Dr Margaret Gill, Professor Ehsan Mesbahi, Professor Christopher Frid

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Abstract

A ship board trial of a deoxygenation method for treating ballast water was carried out during a voyage from Southampton (United Kingdom) to Manzanillo (Panama). A nutrient solution added to two ballast tanks encouraged bacterial growth, resulting in a gradual change to an anoxic environment. Samples were taken from two treated tanks and two untreated tanks to assess changes in the abundance and viability of zooplankton, phytoplankton and bacteria. The work was carried out before the International Maritime Organization (IMO) standard was agreed so only a broad indication of whether the results achieved the standard was given. For the zooplankton, the standard would have been achieved within 5 or 7 days but the phytoplankton results were inconclusive. The biological efficacy was the result of the combination of several factors, including the treatment, pump damage and an increase in the water temperature during the voyage. Crown Copyright © 2007.


Publication metadata

Author(s): McCollin T, Quilez-Badia G, Josefsen KD, Gill ME, Mesbahi E, Frid CLJ

Publication type: Article

Publication status: Published

Journal: Marine Pollution Bulletin

Year: 2007

Volume: 54

Issue: 8

Pages: 1170-1178

ISSN (print): 0025-326X

ISSN (electronic): 1879-3363

Publisher: Elsevier Ltd

URL: http://dx.doi.org/10.1016/j.marpolbul.2007.04.013

DOI: 10.1016/j.marpolbul.2007.04.013

PubMed id: 17574278


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