SPI
Ship&Offshore | Issue GreenTech/2021

Regulating grey water – a necessity

July 2021 | Wei Chen, Mark Beavis, Oliver Jost, Felix von Bredow, Markus Joswig

treatment plants The IMO’s MARPOL Annex IV is being revised to confirm the lifetime performance of sewage treatment plants (STPs). This may finally endorse grey water regulation – a necessity that is long overdue, says a conglomerate of scientists, shipowners and suppliers.