The applicability of geo-tubes in a containment method for dioxin-contaminated sediment
was studied. The following results were obtained from laboratory experiments. (1) The
concentration of dioxins in the drainage from geo-tubes decreased in the dewatering process.
(2) The CE value was defined to evaluate the containment performance of geo-tubes. The CE
values were greater than 99.8% when adding the flocculant. Most of the dioxins were
successfully trapped in the geo-tube. (3) The dioxins leached from the geo-tube are scarcely
observed. From these results,it can be concluded that the geo-tube method is an effective
containment system for dioxin-contaminated sediment.
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