In this study alumina and granulated activated carbon (GAC) are investigated as potential storm water filtration media by testing their heavy metal (i.e., As, Cd, Cr, Cu, Ni, and Zn) removal efficiency in batch and column experiments at a starting pH of 6.5. However, only Cu removal results are presented here due to space concerns. It is found that the equilibrium time for Cu sorption is 2 h for both sorbents, and that the Freundlich adsorption isotherm moderately fits to the sorption data possibly due to the fact that the isotherm fails to take into account the competitive sorption as well as possible precipitation. The results also suggest the presence of humic acid (HA) suppresses the removal, while that of Fe colloids (FC) (FC) is insignificant.
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Genç-Fuhrman, H., Mikkelsen, P.S., Ledin, A. (2007). Designing filters for copper removal for the secondary treatment of storm water. In: Morrison, G.M., Rauch, S. (eds) Highway and Urban Environment. Alliance For Global Sustainability Bookseries, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6010-6_41
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