Συστήματα επεξεργασίας θαλάσσιου έρματος - συγκριτική μελέτη
Κάπαρη - Αλιάζη, Ανδριανή
KeywordsΠλοία ; Ναυτιλιακή οικονομική ; Διαχείριση θαλασσίου έρματος ; Διεθνείς συμβάσεις ; Θεσμικό πλαίσιο ; Νομοθεσία ; Μέθοδοι επεξεργασίας θαλάσσιου έρματος ; Αξιολόγηση κόστους
Invasive aquatic species discharged through ballast water is one of the most serious problems posed nowadays in the marine environment. The purpose of the present thesis is to summarize the main impacts on marine ecosystems, to review the relevant regulatory framework, to understand the operation of the ballast water treatment methods and finally to present economic data of some of the most commercial treatment technologies. Precisely, in the first and second chapter historical data referring to the introduction of the invasive alien species as well as regulated measures taken by the IMO and by USCG to minimize the species shift are outlined. A review of the ballast water treatment methods is presented in the third chapter. In particular, a detailed analysis of the systems available on date and those awaiting approval as well as a thorough description of their advantages and disadvantages have been carried out. At the last chapter of the thesis, a brief assessment of the potential compliance costs with the Convention is carried out. Additionally, a comparative study of some of the aforementioned most commercial treatment technologies, for specific ship types, will follow. In particular, the review will include several costs such as operational cost, purchase and installation as well as additional costs that may occur depending the treatment method used.