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Green Shipping News

Chelsea Technologies Announces ‘SIGNIFICANT’ Wash Water Monitor Order From Fuji Electric

Chelsea Technologies Group has announced an order from Fuji Electric Company Limited for its Sea Sentry wash water monitoring system  for ship exhaust gas cleaning systems. The order, for 26 units to be installed on 13 vessels, comes during a period of industry-wide acceleration in the global scrubber market. Sea Sentry provides a fully autonomous wash water monitoring system, which monitors both the water inlet and outlet of wet exhaust gas scrubber systems. The system has the ability to accurately measure the polycyclic aromatic hydrocarbon, absorbance, turbidity (to ISO 7027:1999), temperature and pH of scrubber wash water, and can monitor open-loop, closed-loop and hybrid scrubber systems, setting the gold standard for accurate wash water monitoring.


Leading subsea technology developer Sonardyne International Ltd. has acquired maritime and marine science technology specialist Chelsea Technologies Group Ltd. The acquisition is part of a long-term growth strategy for Sonardyne, to diversify into markets where it sees an opportunity to build on its core technology base and expertise in underwater acoustic and optical communications, navigation and autonomous monitoring systems. In acquiring Chelsea (also known as CTG), Sonardyne will both strengthen its presence in the maritime, marine and ocean science sectors and create new opportunities in the water environmental, defence and process control markets. Chelsea will gain access to Sonardyne’s considerable research, production, testing, compliance and global distribution capabilities, allowing the company to access many more international territories.

Ballast water compliance monitoring

The entry into force of the Ballast Water Management Convention (BWC) in September 2017 after years of debate provided the maritime industry with a framework to deal with the increasing threat of invasive aquatic species.  To date, 74 states have ratified the BWC, representing more than 75% of the world’s merchant fleet.  CTG is working closely with regulators including the IMO and port authorities as a trusted and workable international standard is developed for ballast water sampling and analysis, one that is based on a proven methodology for representative sampling and analysis of ballast water.   Full article


CTG Sea Sentry washwater monitor installed on scrubber retrofit in China

One of the first scrubber retrofits in China reflective of a wider uptake in the global scrubber market

Chelsea Technologies Group (CTG), a world leader in the design and manufacture of sensors for the maritime sector, has today announced that its Sea Sentry wash water monitoring system for ship exhaust gas cleaning systems has been installed in a Shandong Pure Ocean Technology scrubber, which has been retrofitted to Liberian-flagged bulk carrier BAO Glory, at the Weihai Xinhong shipyard in Weihai, China. The installation represents one of the first scrubber retrofits to be carried out in a Chinese yard, a reflection of the industry-wide acceleration in the global scrubber market. 

Methodology used by Chelsea Technologies’ FastBallast Sensor independently verified by third party benchmark testing

CTG today announced that independent benchmark testing on behalf of the Chinese government has identified the Single Turnover One Pulse (STOP) method used by the company’s FastBallast sensor as the most accurate methodology for portable ballast water sampling. Researchers from the Environmental Protection & Energy-saving Technique Research Centre of China Waterborne Transport Research Institute analysed the different methodologies used in commercial portable ballast water sampling systems, including the STOP-based statistical method, a multiple turnover PAM (Pulse Amplitude-Modulation) methodology, a portable staining method and flow cytometry, all compared against fluorescein-based laboratory standard staining methodology (FDA/CMFDA). The STOP method was identified to deliver the highest degree of accuracy and confidence in portable ballast water testing and analysis.

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