Two different kinds of sediments were submitted to a landfarming process in order to convert them into a matrix suitable for environmental purpose. For nursery activity, landfarming was applied to sediments already partially recovered by phytoremediation to further ameliorate their agronomic and functional properties. Three months of process was able to stimulate microbial activities and, as a consequence, to further reduce the organic pollutant. Moreover, the absence of toxicity, and a good level in nutrient made the sediment suitable for nursery application. Instead, for road construction activity, the landfarming was carried out on fresh sediments in order to reduce water, organic matter and organic contaminant content. Five months of landfarming leaded to a great reduction in the water content even if not enough to reach the optimal level of about 15-20% for sediment reuse in this filed. Moreover, an activation of microbial biomass metabolism conducted to a relevant decrease also of organic matter and contaminants (near to zero), thus making sediments suitable for road constrction.
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