Influence of organic matter in road deposited particulates in heavy metal accumulation and transport
Gunawardana, Chandima, Goonetilleke, Ashantha, Egodawatta, Prasanna, & Dawes, Les A. (2011) Influence of organic matter in road deposited particulates in heavy metal accumulation and transport. In 4th IWA-ASPIRE Conference and Exhibition, 2 - 6 October 2011, Tokyo, Japan.
The research study discussed in the paper investigated the influence of organic matter on heavy metal adsorption for different particle size ranges of build-up solids. Samples collected from road surfaces were assessed for organic matter content, mineral composition, particle size distribution and effective cation exchange capacity. It was found that the organic matter plays a key role in >75µm particles in the adsorption of Zinc, Lead, Nickel and Copper, which are generated by traffic activities. Clay forming minerals and metal oxides of Iron, Aluminium and Manganese was found to be important for heavy metal adsorption to <75µm particles. It was also found that heavy metals adsorbed to organic matter are strongly bound to particles and these metal ions will not be bio-available if the chemical quality of the media remains stable.
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|Item Type:||Conference Paper|
|Additional Information:||CD rom publication Paper No. 11-2-5|
|Keywords:||Heavy metals, Metal adsorption, Organic matter, Solids, Stormwater pollution|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Design (090701)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Modelling (090702)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2011 [please consult the author]|
|Deposited On:||06 Sep 2012 08:43|
|Last Modified:||15 Oct 2012 17:03|
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