Norwegian Cruise Line said it has finished retrofitting a
third ship with exhaust scrubbers designed to reduce air pollution and comply
with tighter pollution standards.
The five scrubbers developed by Yara Marine Technologies and
installed on Norwegian Jewel will cleanse 99% of the sulfur and 85% of the
visible particles from exhaust gas emissions, the cruise line said.
Norwegian said the scrubbers were the first to be installed
while a ship is in service and the first to use a water membrane filtration
unit that removes sulfur from a wastewater stream for later disposal.
The Norwegian Jewel’s retrofitting began in spring 2014 and
required more than 100,000 man hours between numerous partner organizations.
The Norwegian Escape and Pride of America already have
scrubber technology. The Norwegian Pearl and Norwegian Gem will complete their
scrubber installation within the coming weeks. The Norwegian Jade and Norwegian
Sun are scheduled for retrofitting in the first and second quarter of 2017,
Correction: A previous headline said in error that the Norwegian Jade was retrofitted.