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Monday, September 13, 2021 

Ecochlor has received IMO BWMS Code Type Approval for its EcoOne and EcoOne Hybrid Ballast Water Management Systems (BWMS) from the Norwegian Maritime Authority, under an amendment to Ecochlorís existing BWMS Type Approval, in accordance with the recent and more stringent standards set by IMO Resolution MEPC.300 (72), Code for Approval of Ballast Water Management Systems (BWMS Code).

The systems are said to be on track for USCG Type Approval by the end of the year. During the certification process, the EcoOne BWMS was tested to ensure that it works effectively as a single-step system using chlorine dioxide (ClO2) treatment technology, without a filter and in all operating conditions in brackish and marine waters. DNV was the independent laboratory (IL) and took overall responsibility for the entire process of evaluation, inspection, testing and submission of all type approval applications for the system.

Land-based biological efficacy tests were undertaken by the Golden Bear Research Center (GBRC) in California, USA. The Shipboard tests, undertaken by DHI as sub-laboratory, were completed to test the biological efficacy and related shipboard operational performance of the EcoOne BWMS on board commercial vessels. This testing was performed on two vessels owned by Maran Tankers, a VLCC and an Aframax, during typical voyages.

Pete Thompson, VP Operations, said: “Our team is very excited to bring these new and innovative BWMSs to market. We have worked diligently over the last 18 months along with DNV, Maran Tankers, Golden Bear and DHI to test the EcoOne BWMS and EcoOne Hybrid BWMS to the highest standards possible in compliance with IMO testing requirements and to ensure the operational reliability that is expected from every single Ecochlor system.”

Ecochlor now offers three different type approved BWMS products:

  • Ecochlor BWMS (filtration and ClO2): Vessels operating this system can operate anywhere in the world with no restrictions to temperature, salinity or turbidity.
  • EcoOne BWMS (ClO2 alone): Vessels operating this system can operate anywhere in marine and brackish waters (≥1PSU) with no restrictions on temperature or turbidity
  • EcoOne Hybrid BWMS (Dual mode filtration and ClO2 or ClO2 alone): This option allows operation either with or without a filter allowing shipowners the flexibility of unrestricted operation globally but with the convenience of a no-filter system.

Each of these systems relies on the same core ClO2 technology.

Andrew Marshall VP of business development, said: “ClO2 technology is not affected by suspended sediments or turbidity. Therefore, filtration is not necessary to remove sediments prior to treatment, unlike UV technology. Additionally, ClO2 technology primarily reacts with living organisms (rather than reacting with all organic matter) and does not require significantly increasing the dose to effectively treat the ballast water. On the other hand, sodium hypochlorite or electro-chlorination-based technologies react with any organic matter living or dead and require a very large increase to the chemical dose to ensure treatment efficacy. This increased dosage requires additional power to produce the higher levels of hypochlorite and therefore, could potentially be hazardous to tank coatings and vessel structures.” 

The company has announced a significant number of orders for the latest systems.

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