A passive apparatus for controlled-flux delivery of biocides: hydrogen peroxide as an example

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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A passive apparatus for controlled-flux delivery of biocides: hydrogen peroxide as an example. / Olsen, Stefan Møller; Pedersen, L.T.; Dam-Johansen, Kim; Kiil, Søren.

In: Biofouling, Vol. 26, No. 2, 2010, p. 213-222.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Olsen, Stefan Møller; Pedersen, L.T.; Dam-Johansen, Kim; Kiil, Søren / A passive apparatus for controlled-flux delivery of biocides: hydrogen peroxide as an example.

In: Biofouling, Vol. 26, No. 2, 2010, p. 213-222.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Bibtex

@article{910439c8f4a54f20af66c752acd81c66,
title = "A passive apparatus for controlled-flux delivery of biocides: hydrogen peroxide as an example",
keywords = "coating, assay, antifouling, hydrogen peroxide, paint, biocide",
publisher = "Taylor & Francis Ltd.",
author = "Olsen, {Stefan Møller} and L.T. Pedersen and Kim Dam-Johansen and Søren Kiil",
year = "2010",
doi = "10.1080/08927010903419622",
volume = "26",
number = "2",
pages = "213--222",
journal = "Biofouling",
issn = "0892-7014",

}

RIS

TY - JOUR

T1 - A passive apparatus for controlled-flux delivery of biocides: hydrogen peroxide as an example

A1 - Olsen,Stefan Møller

A1 - Pedersen,L.T.

A1 - Dam-Johansen,Kim

A1 - Kiil,Søren

AU - Olsen,Stefan Møller

AU - Pedersen,L.T.

AU - Dam-Johansen,Kim

AU - Kiil,Søren

PB - Taylor & Francis Ltd.

PY - 2010

Y1 - 2010

N2 - A new test method has been developed to estimate the required release rate of hydrogen peroxide (H2O2) to prevent marine biofouling. The technique exploits a well-defined concentration gradient of biocide across a cellulose acetate membrane. A controlled flux of H2O2, an environmentally friendly biocide, was obtained. Larvae of the barnacle, Balanus improvisus, were subjected to known release rates of H2O2 from a surface, under laboratory conditions. It was found that the distribution of settled larvae was not significantly different from the controls when H2O2 fluxes of 5-8 mu g cm(-2) day(-1) were applied. However, release rates of 40 mu g cm(-2) day(-1) significantly displaced the distribution of settled larvae towards the area of the chamber farthest away from the membrane. Membrane tests in seawater (Jyllinge Harbour, Denmark) for over 16 weeks showed that release rates of H2O2 of approximately 2800 mu g cm(-2) day(-1) deterred biofouling efficiently. A H2O2 release rate of about 224 mu g cm(-2) day(-1) resulted in some slime formation, but it was less than that on the H2O2-free control. It appears that to obtain efficient resistance to biofouling in natural seawater requires much higher membrane release rates of H2O2 (factor of between 5 and 50) than laboratory membrane exposure assays using barnacle larvae.

AB - A new test method has been developed to estimate the required release rate of hydrogen peroxide (H2O2) to prevent marine biofouling. The technique exploits a well-defined concentration gradient of biocide across a cellulose acetate membrane. A controlled flux of H2O2, an environmentally friendly biocide, was obtained. Larvae of the barnacle, Balanus improvisus, were subjected to known release rates of H2O2 from a surface, under laboratory conditions. It was found that the distribution of settled larvae was not significantly different from the controls when H2O2 fluxes of 5-8 mu g cm(-2) day(-1) were applied. However, release rates of 40 mu g cm(-2) day(-1) significantly displaced the distribution of settled larvae towards the area of the chamber farthest away from the membrane. Membrane tests in seawater (Jyllinge Harbour, Denmark) for over 16 weeks showed that release rates of H2O2 of approximately 2800 mu g cm(-2) day(-1) deterred biofouling efficiently. A H2O2 release rate of about 224 mu g cm(-2) day(-1) resulted in some slime formation, but it was less than that on the H2O2-free control. It appears that to obtain efficient resistance to biofouling in natural seawater requires much higher membrane release rates of H2O2 (factor of between 5 and 50) than laboratory membrane exposure assays using barnacle larvae.

KW - coating

KW - assay

KW - antifouling

KW - hydrogen peroxide

KW - paint

KW - biocide

U2 - 10.1080/08927010903419622

DO - 10.1080/08927010903419622

JO - Biofouling

JF - Biofouling

SN - 0892-7014

IS - 2

VL - 26

SP - 213

EP - 222

ER -