Photodegradation of dissolved organic matter: the impact on monolayers
Paper
Paper/Presentation Title | Photodegradation of dissolved organic matter: the impact on monolayers |
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Presentation Type | Paper |
Authors | Stuckey, N. G. (Author), Pittaway, P. A. (Author) and Larsen, K. (Author) |
Editors | Begbie, D. K., Kenway, S. J., Biermann, S. M. and Wakem, S. L. |
Journal or Proceedings Title | Proceedings of the 4th Urban Water Security Research Alliance Science Forum (UWSRA 2012) |
Number of Pages | 6 |
Year | 2012 |
Place of Publication | Brisbane, Australia |
Web Address (URL) of Paper | http://www.urbanwateralliance.org.au |
Conference/Event | UWSRA 2012: Science Forum and Stakeholder Engagement: Building Linkages, Collaboration and Science Quality |
Event Details | UWSRA 2012: Science Forum and Stakeholder Engagement: Building Linkages, Collaboration and Science Quality Event Date 19 to end of 20 Jun 2012 Event Location Brisbane, Australia |
Abstract | The loss of monolayer compounds from the surface of a water body is one of the major causes of variable field performance in reducing evaporative loss. The degradation of susceptible molecules by indirect photochemical reactions involving dissolved organic matter (DOM) in the aquatic microlayer may occur within minutes, reducing the half-life of the molecule by up to 94%. The susceptibility of three commercially available monolayer compounds Hexadecanol, Octadecanol and 2-octadecoxyethanol to indirect photodegradation was assessed using water sampled from eight water bodies (including clear, brown, turbid brown and black water bodies) in South East Queensland (SEQ). A decision matrix was developed using water quality attributes such as colour, source water, catchment type and season, to select the most appropriate monolayer based on photoreactivity of the dissolved organic matter in the water body. |
Keywords | monolayers; photodegradation; dissolved organic matter |
ANZSRC Field of Research 2020 | 410406. Natural resource management |
370104. Atmospheric composition, chemistry and processes | |
300201. Agricultural hydrology | |
Public Notes | © 2012 CSIRO To the extent permitted by law, all rights are reserved and no part of this publication covered by copyright may be reproduced or copied in any form or by any means except with the written permission of CSIRO. This paper was not refereed. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Faculty of Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q18w6/photodegradation-of-dissolved-organic-matter-the-impact-on-monolayers
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