Effect of Landfill Leachate on the Growth of Freshwater Algae as Producer in Aquatic Ecosystem.
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概要
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In order to clarify the effect of landfill leachate on water environment, algal assay procedure was conducted with several dilutions of a real leachate from a landfill site and the treated water of landfill leachate by the biological activated carbon fluidized bed process. Two kinds of freshwater algae, <I>Selenastrum capricornutum</I> and <I>Microcystis aeruginosa</I>, were used in this procedure. From the results obtained in this experimental study, it can be seen that the growth of <I>S.capricornutum</I> and <I>M.aeruginosa</I> was inhibited if undiluted solution of leachate was used; and if the EC50 was assumed as the dilution ratio of leachate, EC50 for the <I>S. capricornutum</I> and <I>M.aeruginosa</I> was 2.9% and 8.7%, respectively. In addition, the biological ac tivated carbon fluidized bed process was found to be an effective process to biodegrade the refractory organics and remove the hazardous materials in a landfill leachate.
- 日本水処理生物学会の論文
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