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Popularity of UV to treat ballast water beats electrochlorination
来源： 编辑：编辑部 发布：2018/01/30 08:54:58
THE number of tanker and large vessel owners who choose ultraviolet (UV) ballast water treatment systems over electrochlorination is continuing to rise.
Ballast water treatment system producer Alfa Laval has to date received orders for 90 of its PureBallast 3.1systems in the range of 1,000 cubic metres per hour (m3/h) or above.
UV ballast water treatment systems are challenging the notion that electrochlorination is the default for large ballast water flows. Today's UV systems compete easily in terms of carbon footprint and energy efficiency, reported the American Journal of Transportation.
The shift towards UV is evident in a string of recent orders won by PureBallast 3.1 in the large-flow range. Among them is an order from Nakilat, a Qatar-listed shipping company with the world's largest LNG fleet, that will retrofit two PureBallast 3.1 systems of 2000 m3/h. A further system of this size will be retrofitted by European oil tanker management company DS Tankers.
"PureBallast 3.1 was selected not only for its small footprint and simple installation, but also for its ease of use," said the head of Alfa Laval PureBallast Anders Lindmark.
"No chemicals are needed to treat the ballast water or to neutralise residuals, which means there will be no chemical handling on the part of the crews. And just as importantly, there will be no risk of corrosion in the system components or ballast water tanks. Those things make a difference for any vessel, large or small," Mr Lindmark said.
Ballast water treatment system producer Alfa Laval has to date received orders for 90 of its PureBallast 3.1systems in the range of 1,000 cubic metres per hour (m3/h) or above.
UV ballast water treatment systems are challenging the notion that electrochlorination is the default for large ballast water flows. Today's UV systems compete easily in terms of carbon footprint and energy efficiency, reported the American Journal of Transportation.
The shift towards UV is evident in a string of recent orders won by PureBallast 3.1 in the large-flow range. Among them is an order from Nakilat, a Qatar-listed shipping company with the world's largest LNG fleet, that will retrofit two PureBallast 3.1 systems of 2000 m3/h. A further system of this size will be retrofitted by European oil tanker management company DS Tankers.
"PureBallast 3.1 was selected not only for its small footprint and simple installation, but also for its ease of use," said the head of Alfa Laval PureBallast Anders Lindmark.
"No chemicals are needed to treat the ballast water or to neutralise residuals, which means there will be no chemical handling on the part of the crews. And just as importantly, there will be no risk of corrosion in the system components or ballast water tanks. Those things make a difference for any vessel, large or small," Mr Lindmark said.