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Characterization of lagoon sediments and their pollutant charge. Proposals for reusing

Authors
  • Mora, E. Peris
  • Monzó, J.
  • Payá, J.
  • Borrachero, M.V.
Type
Book
Journal
Waste Management
Publication Date
Jan 01, 2000
Volume
1
Pages
1014–1021
Identifiers
DOI: 10.1016/S0713-2743(00)80109-9
ISBN: 978-0-08-043790-3
Source
Elsevier
License
Unknown

Abstract

The production of dredged mud constitutes a problem of first magnitude for two reasons: the huge amount of generated wastes, and the environmental risk as a consequence of the accumulated and persistent pollutants. Dredging is a routine maintenance activity in many industrial harbors. However, the management of dredging wastes also appears in other circumstances. The Albufera lagoon in Valencia (Spain) is located in a Ramsar wetland. This lagoon has received, over many decades, the pollutants of domestic and industrial activities from the surrounding metropolitan area. In the last century, an increase in the sedimentary process produced an acceleration of filling, decreasing the capacity of the basin. The area is being protected because of its high ecological value. The aim, or the study is to characterize and to quantify the accumulated pollution and compare several alternatives for the use of those sedimentary materials. Heavy metals, organochlorine pesticides, PCB's and Polycyclic Aromatic Hydrocarbons have been identified. The availability of such prime materials for cement production, as material for agricultural soil restoration, and as material for civil engineering construction will be evaluated. Chemical analysis data, that evaluate the degree of persistent pollution, permits one to be optimistic in the reuse of those wastes.

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