EQUIPMENT

What’s the point of stricter standards if they aren’t enforced?

Importer
Wei Chen: At least 95 per cent of conventional sewage treatment plant vendors claim they can do black and grey water.

Annex IV of IMO’s MARPOL Convention, adopted 40 years ago, set ambitious standards for ship black water discharges, but there are two shortfalls: firstly, grey water is not regulated, and secondly (and uniquely), there is no requirement for sewage discharges from ships to be monitored.

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