engleski

Sediment management practices for ports and shipyards - applicable approaches

The management of ballast water sediment has not so far been extensively researched. Although it was not analysed as often as ballast water itself, the ballast water sediment has been also recognized as a significant vector for transfer of alien invasive species (AIS), harmful organisms and pathogens (HAOP). Additionally, ballast water sediment is identified as a matter that may also contain toxic chemical compounds or heavy metals. So far, the sediment management procedures are not yet harmonized among stakeholders, in particular those involved in maritime transport such as port and shipyard managements and maritime administrations. Therefore, development and implementation of such harmonized procedures shall decrease risks associated with transfer of HAOPs, toxic elements and compounds. At the procedural level, ballast water sediment management should include at least sampling procedures, collecting and disposal procedures as well as information dissemination. The responsibility to implement measures is primarily on ships’ crews and secondary, on national maritime administrations responsible for the implementation of the Ballast Water Management Convention. Generally, sediment management comprises of on- board and on-shore sediment removal and disposal procedures. Although very similar, the responsibilities for those procedures are very different: in case of removal and disposal of ballast water sediment in shipyards, only national legislation is applied, while on- board removal procedures are strictly regulated by the BWM Convention and related guidelines. In any case, the operation should not cause delays or unduly costs to ships, port operators or any other person or entity operating within port areas and shipyards, unless such delay or cost is reasonable and can clearly prevent or minimise transfer of alien invasive species or HAOP. This paper analyses best practices of sediment management for ports and shipyards, including relevant legal issues and applicable training requirements for personnel. The disposal options by using innovative technologies are analysed and presented considering their technical aspects, application requirements, safety aspects, training needs and the need to keep operational costs within acceptable ranges. Furthermore, detailed analysis for the existing sediment management procedures in the Adriatic Sea is presented. Finally, knowledge, understanding and proficiencies that may or should be considered as a part of the STCW Convention (once the BWM Convention enters into force) are discussed.

ballast water sediment; ports; shipyards; best management practices; BWM Convention.

nije evidentirano