The Port of Fujairah in the UAE on Tuesday (22 January) reportedly sent a Notice of Mariners (NTM) stating a ban on the use of open-loop scrubbers within its waters with immediate effect.
“Please be advised that Port of Fujairah has decided to ban the use of open-loop scrubbers in its waters. Ships will have to use compliant fuel once the IMO 2020 sulfur cap comes into force,” said Harbour Master Captain Tamer Masoud.
“Please advise all your principals accordingly.”
An open loop scrubber system utilises seawater as scrubbing water because the water is taken from the sea, led through the scrubber, and then released back into the sea thus forming an open loop, according to the Exhaust Gas Cleaning whitepaper from scrubber manufacturer Wartsila.
A closed loop system is filled with water which is then recirculated. The water is not, therefore, supplied from the sea and it is a closed loop. In a closed loop system only a small amount of the scrubbing water is let out from the system and released into the sea.
“There is often a misunderstanding that a closed loop will not have any discharge to the sea. This is never the case, as the scrubbing water cannot recirculate forever, but has to be gradually exchanged with clean water to maintain the cleaning efficiency of the scrubber,” states the whitepaper.
“The discharge water can, however, be stored for a period of time in a tank to enable a zero-discharge mode.”
The ban of wash water discharge from open-loop scrubbers has taken place at other international ports including certain areas in China.
Related: North P&I: List of ports banning scrubber discharges in waters
Related: Skuld: Part of China ECAs has banned scrubber wash water discharge
Related: BIMCO: China has not yet placed a full ban on open-loop scrubbers
Related: North P&I: China’s Restrictions on Open Loop Scrubber Discharges
Photo credit: Port of Fujairah
Published: 23 January, 2019
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