A new generation lättviktsskrubbrar, which does not emit any waste water at all in the sea, is now being tested in the Baltic Sea. Pilot Vessel is TransTimber.
The technology was installed last fall, but the settings are not in place yet.
Lättviktsskrubbern Ecospec is one Singaporean construction that has previously only been used by industry in the country. In late autumn installed a plant for the first time on a ship, Gothenburg-based shipping company TransAtlantic ro-ro ships TransTimber.
– The technology is in operation and we makes a good reduction of the sulfur. We are not quite done with all the settings yet, but hope to be there in the spring, says Leif Holmberg, Technical Manager at Transatlantic Shipmanagement.
Unlike the scrubbers used today by sea lättviktsskrubbern generates no waste at sea.
– The system is completely sealed and running with circulating water that we daily peaks up with a certain amount of seawater. The waste is compressed into dry cakes that are stored in a container on board before it runs ashore for disposal, says Leif Holmberg.
Another feature of Ecospec is that it requires no cooling of skrubbervattnet. For TransTimber that go way up in the Gulf of Bothnia, where the ice is often thick winter, it is a great advantage.
– conventional scrubbers cooled with seawater. But you go in ice clogging sjökistorna again and we had needed to fill tanks with 1000 tons of seawater to cool the system, says Leif Holmberg.
TransTimber service Gothenburg, Zebrugge (Belgium), Lübeck, Germany, and Oulu and Kemi in northern Finland.
The test with lättviktsskrubbern included in the EU-funded pilot Scrubber Project which is run in collaboration with Stora Enso and SSPA. To the end of the year, the project will be completed.
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