Ballast water treatment systems Leading ballast water treatment systems
CleanBallast works on a combination of filtration and disinfection and is in use on board 26 vessels aggregating 27 years of successful operation as of June this year. It is produced by Bremen- based RWO GmbH – Marine Water Technology, a subsidiary of Veolia Water, a leading company in water and waste water services. The system is easily integrated into on- board processes, according to a spokesman, and its modular design means that components can be arranged to suit the available space and piping layout of ballast water systems. This is true for most pump capacities and ship types, and both for newbuilding and refrofitting. The company's focus is on system capacities from 150cu mtr/h to 2,500cu mtr/h with scope to go up to 3,750cu mtr/h. The present orderbook comprises 44 CleanBallast systems which are all to be installed on newbuildings.
ClearBallast has been developed jointly by Hitachi Plant Technologies Ltd and Mitsubishi Heavy Industries and is designed to work on a system described as ‘coagulation and magnetic separation.’ The fact that there is no active substance involved removes the risk of residual chemicals causing secondary contamination. However, a spokesman reveals that the product is still at an experimental stage because it is being re-designed for ‘miniaturisation and cost reduction.’ The product is not being actively marketed at present, he said.
Hyde Guardian developed by Pittsburgh-based Hyde Marine, has been type-approved by Lloyd's Register. The system does not use an active substance but is based on filtration and ultraviolet disinfection. Following approval from the Russian Marine Registry of Shipping, a grant is being made available to install a 250cu mtr/hour system on board the Russian Arctic container vessel MS Norilskiy Nickel. Hyde Guardian is available with capacities ranging from 60cu mtr/hour to 1,500cu mtr/hour.
Customised systems of up to 6,000cu mtr/hour are also available.
OceanSaver a non-conventional electrolysis-membrane cell technology, has an orderbook of 38 vessels including newbuildings and retrofits. The company has completed its first two VLCC installations and will also be installing Suezmax tankers, PCTCs and LNG carriers. Capital and installation costs vary but typically lie in the $700,000 to $1.2m range for medium-sized vessels, according
Getting it right
hoosing the right ballast water treatment system is a complex process. There are about a dozen type-approved systems currently available, working on a combination of filtration and disinfection, but most ships are different and installations should be tailored to meet specific needs.
C This is why Goltens
Green Technologies (GGT) has established a Rotterdam hub to manage ballast water treatment system installation services for the group’s 22 engineering centres worldwide. Jurrien Baretta, in charge of business development, says the company has no equipment supplier affiliations and can therefore offer impartial advice. The company has established expertise in various systems and has brought together
experienced engineers and assembly crews that are available every day of the year, she says.
Jurrien Baretta
Goltens has devised a seven-step plan to guide owners through the decision-making process – from system selection through engineering, commissioning, training and service support. Although the current focus is on ballast water treatment, GGT plans to assist owners in meeting other environmental
standards, including emissions abatement in due course. For the moment, spiralling installation costs is a worry, says Baretta. ‘The industry is alive with stories of how costs can escalate to two or even three times what was initially expected based on manufacturers' price lists,’ she said recently.
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to sales and marketing director Tor Atle Eiken, but up to $2m for large ships. Its type-approved Mark I has now been supplemented by a Mark II version, based on the same technology, but comprising a simpler design which the company claims will be cheaper and easier to retrofit. It is more energy efficient, has better filtration performance, fewer components and will be well- suited to the medium range vessel market. Other features of both systems include compatibility with ballast tank coatings and scope to
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