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Fate of Nonylphenol in lakes:: Case study modelling of two small lakes in Stockholm, Sweden
KTH, School of Industrial Engineering and Management (ITM), Industrial Ecology.
2010 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Nonylphenol is a widely used organic compound which has been reported to have potential risk to aquatic environment. According to the result of recent studies, it has been detected in many lakes in Stockholm, Sweden, which raised great concern. In this thesis, a dynamic fate model was adopted and modified from literature in order to study the distribution and concentration of nonylphenol in small lakes, guide the field sampling and provide information for corresponding decision making. Two lakes in Stockholm, Lake Trekanten and Lake Drevviken, were selected as case studies. Another model was included for comparison purpose.

Based on the model result, the most important nonylphenol removal process in both lakes was the transformation in water. A sensitivity analysis showed that the model results were most sensitive to the process of nonylphenol water inflow. In terms of sediment concentration of nonylphenol, satisfactory agreements were obtained from the comparison between model results and field data. However, problems, such as the simultaneous handling of nonylphenol and nonylphenol ethoxylates, may cause uncertainties on the model performance. The result of the analysis about scenario load change and the seasonal variation showed that the sediment nonylphenol content is more stable to the seasonal change compare to nonylphenol water content, but the response times to load change of nonylphenol content in these two compartments are quite close and somewhat lower than the water residence time.

Place, publisher, year, edition, pages
2010.
Series
TRITA-IM, 2010:31
Keyword [en]
nonylphenol, fate, modelling, lake
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-58638OAI: oai:DiVA.org:kth-58638DiVA: diva2:473713
Uppsok
Technology
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Examiners
Available from: 2012-01-13 Created: 2012-01-07 Last updated: 2012-01-13Bibliographically approved

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CiteExportLink to record
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  • apa
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