Inderscience Publishers

Coupling vermiremediation with phytoremediation technology to enhance the efficiency of reclamation of polluted marine sediments

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Contaminated (TPHs and heavy metals) dredged sediments from Livorno port (Italy) were biological treated using plants and earthworms. Sediments presented an asphyctic physical structure owing to the silt?clay granulometric composition, a high salty level and a low organic content. A meso-scale experiment was done utilising three different bioremediation treatments: a) plants (Paspalum vaginatum and Tamarix gallica), b) earthworms (Eisenia foetida) and c) plant?earthworms combination. After one year, a suitable habitat for plants and earthworms was created due to the biochemical activation of the matrix, observing also a reduction of the organic and inorganic contaminants.

Keywords: bioremediation, Eisenia foetida, phytoextraction, marine sediments, vermiremediation, phytoremediation, TPHs, heavy metals, earthworms, plants, Paspalum vaginatum, Tamarix gallica, sediment reclamation, sediment contamination, environmental pollution, total petroleum hydrocarbons

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