Ozone, ultraviolet light, ultrasound and hydrogen perozide as ballast water treatments: Experiments with mesozooplankton in low-salinen brackish water

Satu Viitasalo, Jukka Sassi, Jorma Rytkönen, Erkki Leppäkoski

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Abstract

Non-native aquatic species dispersed via ships’ ballast water create a threat for local marine ecosystems throughout the world. Increasing maritime traffic and faster ships have increased the risk for species introductions during the last decades and effort has been made to develop reliable methods for ballast water management. While various technologies such as ultraviolet irradiation and ultrasonication have shown promising results, the efficacy of any treatment depends on various chemical, physical and biological properties of water such as turbidity, salinity and the size and type of the organisms. Although many of the major harbours are located in estuaries with a wide range of salinity, technologies developed so far have not been tested in brackish environments. In this study, we assessed the efficacy of four potential ballast water treatment technologies – ozonation, ultraviolet irradiaton (UV), ultrasonication (US) and hydrogen peroxide (H2O2) – on indigenous brackish water zooplankton (copepods, cladocerans and rotifers as the main groups). All technologies showed promising results and high kill percents (>99 %) were achieved in these low-saline conditions. Different taxa responded differently to the various technologies but basically the most effective treatments were the combinations of US+UV and UV+ H2O2. Many issues, however, need to be addressed in order to define the feasibility of the technologies in full-scale applications.
Original languageEnglish
Pages (from-to)35-55
Number of pages21
JournalJournal of Marine Environmental Engineering
Volume8
Issue number1
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

ballast water
Water treatment
brackish water
Ozone
water treatment
Ultrasonics
ozone
hydrogen
Hydrogen
Water
experiment
Experiments
Ships
salinity
Aquatic ecosystems
Ozonization
estuarine environment
Water management
Estuaries
Turbidity

Keywords

  • ballast water treatment
  • ultraviolet
  • ultrasound
  • hydrogen peroxide
  • ozonen
  • mesozooplankton
  • brackish water

Cite this

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title = "Ozone, ultraviolet light, ultrasound and hydrogen perozide as ballast water treatments: Experiments with mesozooplankton in low-salinen brackish water",
abstract = "Non-native aquatic species dispersed via ships’ ballast water create a threat for local marine ecosystems throughout the world. Increasing maritime traffic and faster ships have increased the risk for species introductions during the last decades and effort has been made to develop reliable methods for ballast water management. While various technologies such as ultraviolet irradiation and ultrasonication have shown promising results, the efficacy of any treatment depends on various chemical, physical and biological properties of water such as turbidity, salinity and the size and type of the organisms. Although many of the major harbours are located in estuaries with a wide range of salinity, technologies developed so far have not been tested in brackish environments. In this study, we assessed the efficacy of four potential ballast water treatment technologies – ozonation, ultraviolet irradiaton (UV), ultrasonication (US) and hydrogen peroxide (H2O2) – on indigenous brackish water zooplankton (copepods, cladocerans and rotifers as the main groups). All technologies showed promising results and high kill percents (>99 {\%}) were achieved in these low-saline conditions. Different taxa responded differently to the various technologies but basically the most effective treatments were the combinations of US+UV and UV+ H2O2. Many issues, however, need to be addressed in order to define the feasibility of the technologies in full-scale applications.",
keywords = "ballast water treatment, ultraviolet, ultrasound, hydrogen peroxide, ozonen, mesozooplankton, brackish water",
author = "Satu Viitasalo and Jukka Sassi and Jorma Rytk{\"o}nen and Erkki Lepp{\"a}koski",
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Ozone, ultraviolet light, ultrasound and hydrogen perozide as ballast water treatments : Experiments with mesozooplankton in low-salinen brackish water. / Viitasalo, Satu; Sassi, Jukka; Rytkönen, Jorma; Leppäkoski, Erkki.

In: Journal of Marine Environmental Engineering, Vol. 8, No. 1, 2005, p. 35-55.

Research output: Contribution to journalArticleScientificpeer-review

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