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Hallegraeff, Gustaaf M.; Valentine, Joseph P.; Marshall, Judith-Anne; Bolch, Christopher J. S.

doi:10.1023/a:1009972931195

Cited by 32 publications

(1 citation statement)

References 11 publications

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“…Chemical oxidants, long used in drinking water and wastewater treatment, are being considered as an alternative for the control of invasive species on ships. The oxidants include chlorine (HOCl/OCl - ) ( , ), bromine (HOBr/OBr - ), ozone (O 3 ) ( , ), hydrogen peroxide (H 2 O 2 ) ( 8 , 14 , − , chlorine dioxide (ClO 2 ) (), and monochloramine (NH 2 Cl) (). The application of oxidants may result in different oxidant species in freshwater and seawater because of the presence of Br - in seawater (67 mg L -1 at a salinity of 35) (e.g., 22 , 23 ).…”

Section: Introductionmentioning

confidence: 99%

Sunlight-Induced Photochemical Decay of Oxidants in Natural Waters: Implications in Ballast Water Treatment

Cooper

Jones

Whitehead

et al. 2007

Environ. Sci. Technol.

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The transport and discharge of ship ballast water has been recognized as a major vector for the introduction of invasive species. Chemical oxidants, long used in drinking water and wastewater treatment, are alternative treatment methods for the control of invasive species currently being tested for use on ships. One concern when a ballasted vessel arrives in port is the adverse effects of residual oxidant in the treated water. The most common oxidants include chlorine (HOCl/OCl-), bromine (HOBr/OBr-), ozone (03), hydrogen peroxide (H2O2), chlorine dioxide (ClO2), and monochloramine (NH2Cl). The present study was undertaken to evaluate the sunlight-mediated photochemical decomposition of these oxidants. Sunlight photodecomposition was measured at various pH using either distilled water or oligotrophic Gulf Stream water for specific oxidants. For selected oxidants, quantum yields at specific wavelengths were obtained. An environmental photochemical model, GCSOLAR, also provided predictions of the fate (sunlight photolysis half-lives) of HOCI/OCl-, HOBr/OBr-, ClO2, and NH2Cl for two different seasons at latitude 40 degrees and in water with two different concentrations of chromophoric dissolved organic matter. These data are useful in assessing the environmental fate of ballast water treatment oxidants if they were to be discharged in port.

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Section: Introductionmentioning

confidence: 99%

Sunlight-Induced Photochemical Decay of Oxidants in Natural Waters: Implications in Ballast Water Treatment

Cooper

Jones

Whitehead

et al. 2007

Environ. Sci. Technol.

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Harmful Algae Introductions: Vectors of Transfer, Mitigation, and Management

Murray

Hallegraeff

2018

Harmful Algal Blooms

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Inactivation of harmful dinoflagellate (Alexandrium catenella) in ballast water by electric treatment

et al. 2008

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Ohmic heating and pulse low electric field (PLEF) treatments were applied to cause a lethal effect on Alexandrium catenella cells suspended in seawater. The survival of A. catenella treated with ohmic heating decreased with electric field strength and treatment time. The maximum of only 10% reduction in survival was achieved with 1 s treatment at 50 V cm -1 . On the other hand, the application of pulse low electric treatment of 70 V cm-1 field strength for 3 x 10 ms resulted in high destruction levels of A. catenella cells (survival 0.01%), thus is an effective method for inactivation of toxic dinoflagellates in ballast water.

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Untitled

Cited by 32 publications

References 11 publications

Sunlight-Induced Photochemical Decay of Oxidants in Natural Waters: Implications in Ballast Water Treatment

Sunlight-Induced Photochemical Decay of Oxidants in Natural Waters: Implications in Ballast Water Treatment

Harmful Algae Introductions: Vectors of Transfer, Mitigation, and Management

Inactivation of harmful dinoflagellate (Alexandrium catenella) in ballast water by electric treatment

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