Enforce discharge rules, says ACO Marine
ACO Marine, together with wastewater treatment system manufacturers and environmental organisations, has called for a revision to MARPOL Annex IV in order to verify the ongoing performance and discharge criteria of onboard sewage treated systems.
Whilst there are rules in place for verifying discharge parameters, these relate only to type-approval testing in land-based establishments. There is currently no enforcement of wastewater discharge criteria once a system has been installed and becomes operational onboard ship.
ACO Marine's managing director, Mark Beavis, said: “The main contention is that we believe there are type-approved systems in operation at sea that are scientifically incapable of treating sewage waste.”
A paper co-authored by Mr Beavis – 'Sewage Treatment with No-Sludge Production – A False Claim, and a Non-Conformity' – attests: “Some manufacturers claim their sewage treatment plants do not produce sludge. Unfortunately, conformity assessment bodies have approved their equipment. But they have certified impossibilities and created certified ‘magic boxes’. These systems contravene science.”
“These ‘magic boxes’ would not be able to perform no matter how well they are operated and we are very concerned about the environmental damage these systems are causing,” said Mr Beavis.
While the rules were tightened with MEPC.227(64) and the use of dilution water limited during performance tests, this has not prevented the certification of these so-called sludge-free systems.
Existing guidelines do not explicitly prohibit no-sludge systems but the authors believe the type approval regime is a “contradiction to the IMO’s intentions”.
The paper calls for IMO, its member states and the approval assessment bodies to acknowledge the issue and establish protocols in order to prevent such non-conformities from recurring.
LATEST PRESS RELEASES
DESMI Ocean Guard wins Frame Agreement for Supply of Ballast Water Management Systems for the Existing Fleet of French Company Sea Tankers
Aalborg, DK, May 7, 2019 – DESMI Ocean Guard A/S is pleased to announce that Sea Tankers have select... Read more
Vickers Oils has opened its 1,700 square metre state-of-the-art R&D laboratory, as well refurbishing... Read more
Gloryholder has been awarded the contract to design and supply the LNG cargo handling and fuel gas s... Read more
DESMI Ocean Guard’s CompactClean Ballast Water Management System Receives US Coast Guard Type Approval
Aalborg, DK, April 17, 2019– DESMI Ocean Guard A/S is pleased to announce that its CompactClean Ball... Read more
DESMI KaziCat is a true Multi-Purpose Catamaran Vessel despite its compact size; just below 24 meter... Read more
When the UK’s Royal Navy realised that the water pumps for firefighting on a number of its vessels w... Read more