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Role of particle size and composition in metal adsorption by solids deposited on urban road surfaces

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  • معلومة اضافية
    • بيانات النشر:
      Elsevier Ltd.
    • الموضوع:
      2014
    • Collection:
      Queensland University of Technology: QUT ePrints
    • نبذة مختصرة :
      Despite common knowledge that the metal content adsorbed by fine particles is relatively higher compared to coarser particles, the reasons for this phenomenon has gained little research attention. The research study discussed in the paper investigated the variations in metal content for different particle sizes of solids associated with pollutant build-up on urban road surfaces. Data analysis confirmed that parameters favourable for metal adsorption to solids such as specific surface area, organic carbon content, effective cation exchange capacity and clay forming minerals content decrease with the increase in particle size. Furthermore, the mineralogical composition of solids was found to be the governing factor influencing the specific surface area and effective cation exchange capacity. There is high quartz content in particles >150µm compared to particles <150µm. As particle size reduces below 150µm, the clay forming minerals content increases, providing favourable physical and chemical properties that influence adsorption.
    • File Description:
      application/pdf
    • Relation:
      https://eprints.qut.edu.au/63301/1/Role_of_particle_size_and_composition_in_metal_adsorption_by_solids_deposited_on_urban_road_surfaces.pdf; Gunawardana, Chandima, Egodawatta, Prasanna, & Goonetilleke, Ashantha (2014) Role of particle size and composition in metal adsorption by solids deposited on urban road surfaces. Environmental Pollution, 184, pp. 44-53.; https://eprints.qut.edu.au/63301/; Institute for Future Environments; Science & Engineering Faculty
    • Rights:
      free_to_read ; http://creativecommons.org/licenses/by-nc-nd/2.5/ ; Consult author(s) regarding copyright matters ; This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au
    • الرقم المعرف:
      edsbas.AF312CCA