By Danny Reible, Tomáš Lánczos (auth.), Danny Reible, Tomas Lanczos (eds.)
Contaminated sediments pose essentially the most tough website remediation concerns. infected sediments generally dwell in spatially variable and dynamic structures topic to seasonal move diversifications and episodic typhoon occasions. the amount of sediments that needs to be controlled at specific websites usually exceeds 1000000 cubic meters, dwarfing many infected soil websites. those sediments also are linked to both daunting volumes of water and efforts to take away the infection mostly entrains much more water. The environmental protection of either NATO and companion international locations is in danger because of the pervasive nature of sediment illness of rivers, lakes and harbors. A NATO complicated study Workshop was once convened in Bratislava in may well 2005 to debate present methods to dealing with infected sediments and to spot examine essential to triumph over extraordinary difficulties.
In this article, drawn from displays and dialogue of that workshop, present ways to the evaluate and remediation of infected sediments may be mentioned with the emphasis on in-situ administration. actual, chemical and organic ways for the evaluate and remediation of sediments are all addressed. constructing regulatory and strategic techniques are highlighted with a different emphasis at the strength for organic remediation for the administration of infected sediments.
Read or Download Assessment and Remediation of Contaminated Sediments: Proceedings of the NATO Advanced Research Workshop on Assessment and Remediation of Contaminated Sediments Bratislava, Slovak Republic 18–21 May 2005 PDF
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Additional info for Assessment and Remediation of Contaminated Sediments: Proceedings of the NATO Advanced Research Workshop on Assessment and Remediation of Contaminated Sediments Bratislava, Slovak Republic 18–21 May 2005
4. 1. Dredged-material management Many water and port managers face the continuous effort of dredging in order to maintain the required water depth. Europe-wide, the volume of dredged material is very roughly estimated at 200 million cubic meters per year. There are three types of dredging: capital, maintenance and remediation dredging. Capital dredging is for example for land reclamation, deepening fairways, etc. Maintenance dredging is mainly to keep waterways at a defined depth to ensure safe navigation, and remediation dredging is to solve environmental problems of contaminated sediments.
Soils provide the physical basis for technical, industrial and socio-economic structures and their development, for instance industry, housing, transport, sports, recreation and the dumping of refuse. Sediments provide a similar substrate for most structures and developments in aquatic systems. As will be discussed later, a balanced soil and sediment supply is necessary to protect infrastructure, and, as sea levels rise and climate changes, our management of this cycle will be a primary line of defense.
The WFD requires the adoption of specific measures to progressively reduce discharges, emissions and losses of priority hazardous substances (Decision 2455/2001/CE Annex X). This provision can help tackling existing pollution sources in European river Basins to reduce ongoing sediment contamination. 2. National and local regulatory priority substances frameworks for sediment reclamation in Venice Lagoon Nowadays, in Italy, there is not a national legislation dedicated to sediment management. M.