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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/1795

    Title: Competitive adsorption of copper and lead ions on an iron-coated sand from water
    Authors: Lai, C. H.;Chen, Chih-Yu;Shih, P. H.;Hsia, T. H.
    Contributors: 輔英科技大學 環境工程與科學系
    Date: 2000-03-01
    Issue Date: 2010-09-24 16:32:50 (UTC+8)
    Abstract: Iron oxides are good adsorbents for some metal ions. However, the adsorbent properties of these oxides are not fully exploited in water or wastewater operations because of difficulties associated with their separation from the aqueous phase. An oven process with agitators for applying an iron oxide coating onto the sand surface to utilize the adsorbent properties of the coating and filtration properties of the sand media was developed. The competitive adsorption of iron-coated sand for copper and lead ions from water was investigated by batch and column experiments. Among the two metal ions studied, the coated sand has greater affinity for the removal of lead ions compared to copper ions at a concentration of 50-5M, 110-4M and an interval of pH=2.5~6.5. Adsorption behaviors of copper and lead ions at the iron oxide/water interface could be proved to form chemisorption through the SEM/EDAX analysis. From the column experiment results, both copper and lead ions could be removed simultaneously by the iron-coated sand in a continuous treatment unit.
    Relation: Water Science & Technology, Vol 42 No 3-4 ,pp 149–154
    Appears in Collections:[環境工程與科學系] 期刊論文

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