Reclaiming Polluted Marine Sediments. A Case History
نویسندگان
چکیده
The Development Plan of Taranto port (S. Italy) predicts the dredging of approx.20 Mt sediments, ≥10% of which are polluted. By appointment of Italian Environment Ministry, a detailed experimental investigation was carried out at laboratory and pilot-scale levels on the best available techniques to reclaim the polluted sediment so to reuse it in a technic and cost effective manner. A short pre-activation of sediment by mechanochemical technique followed by aerobic biodegradation offered most effective decontamination while the addition of cement with blast-furnace slag and coal fly ash allowed profitable reuse of the de(un)contaminated sediments. Keywords—marine sediments; port pollution; PAHs; hydraulic additives; coal fly ash, waste reclamation and reuse.
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