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February 2006 27 Ships move more than 80 percent of the world's commodities, and in the process transfer approximately 3 to 5 billion tons of ballast water worldwide each year. The issue of aquatic invasive species, including the transfer of harm- ful organisms in ships' ballast water and sediments, is seen as one of the four greatest threats to global marine bio- diversity and ecosystems, and as a sig- nificant threat to coastal economies and even public health. Greenship recently introduced a new shipboard Ballastwater Management System, a system designed to suit ships best that have ballast flow rates from 50 to 5,000 cu. m./hr. Greenship's Ballast Water Management System includes: • The Sedimentor, for removing sed- iment and biota during intake. The electrolyze system for extermi- nation of bacteria and organisms. The Sediment Removal System Greenship designed its sediment pre- vention system to not only fight pollu- tion of the ballast water, but to also help prevent the cause of the consolidating mud-problem. Tons of extra sediment in the ballast tanks makes a ship less fuel efficient and allows the carriage of less cargo. According to the manufacturer, the Sedimentor removes 100 percent of >20 micron and 80 percent of > 10 micron sediment particles. The remain- ing sediment particles stay in suspension and will leave the ballast tanks during de-ballasting. The Sedimentor is engineered from modular parts, providing maximum flexibility in construction and space. There are two volumes: A 50 cu. m./hr. volume and a 100 cu. m./hr. volume. The Sedimentor can be easily integrat- ed into existing ballast systems, and the modules are measured for easy access into the engine room. Electrolyze System Greenship's electrolyze system can be used for dis-infection of water without using any chemical treatment. Greenship's in-line disinfecting tech- nique is designed to be implemented in a wide range of applications. Using the present ions and salts in the water, the electrolytic cell produces Sodium- hypochlorite. After dosing the Sodium- hypochlorite in the water returns to its original structure. This way there are no negative effects for the environment. The electrolyse system for extermina- tion of bacteria and organisms, with a killing rate 100 percent, the manufactur- er claims. The electrolyze system is designed to fit easily into existing ballast systems The electrolyse system is designed to be easily integrated into existing ballast systems, while needing to be cleaned only once per year. Circle 16 on Reader Service Card When you’re far from home, and the sea is raging, it’s comforting to know that you’re really just a phone call or an e-mail away. With the SAILOR Fleet 77 you can surf the net as swiftly as your vessel surfs the waves. But there’s more to Thrane & Thrane SAILOR. From SSAS to the World Wide Web we offer a complete range of maritime satellite communication and radio equipment. See the full Thrane & Thrane SAILOR range at www.thrane.com Thrane & Thrane is the official sponsor of satellite communication equipment to all of the participating boats in the Volvo Ocean Race 2005 – 2006. Thrane & Thrane A/S • info@thrane.com • www.thrane.com 128 kbps at 48 knots INTERNET AND VOICE WITH SAILOR FLEET FROM THRANE & THRANE Circle 258 on Reader Service Card Clean Water Tech New Ballast Water Management System from Greenship The Sedimentor MR FEBRUARY2006 #4 (25-32).qxd 2/1/2006 7:41 PM Page 27
