Following the Building with Nature concept, a pilot study was conducted introducing finegrained dredged sediments as a semicontinuous source of mud into a shallow tidal channel, naturally dispersing sediment to nearby mudflats and salt marshes.
Talking about management firstly means to qualify sediments in the correct way: are they waste or freely manageable materials? The answer is not simple and, being aware of that, the Italian legislator repeatedly intervened, from 2006 to 2012, with laws and regulations in order to offer legal certainties to the interested parties.
A decision-making framework shows how to distinguish minimally hazardous sediments from those requiring special treatment.
By preparing material from maintenance dredging with selected additives, a protective dyke was constructed from 100% reused sediments.
To minimise the possible impacts of suspended sediments in environmentally sensitive areas, silt screens are often employed, but their effectiveness may be questionable.
Removing sediments with high dioxin concentrations requires extra care, with modern surveying and tracking techniques from beginning to end, from dredging to a high-tech dewatering process to the final disposal.
Predicting the transport of sediments in nearshore environments and their affect on coastal stability is essential. This paper, reporting on field experiments in this subject, won the IADC Young Authors Award at COPEDEC IV in Sri Lanka.
Geochronology analyses are used to characterise sediments and sedimentation rates which can help in planning dredging operations.