How to Reduce Ship’s Garbage Volume?

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When the entire Maritime world is concentrating on fuel efficiency and bunker savings at one end, a Finnish company, Evac targets on waste management and thereby saving huge chunks of money.  Evac has introduced a new technology to reduce Ship’s wastes by a factor of 10.

Evac’s machine, with a footprint of approximately two square meters, is paired with Evac’s mixed waste macerator to form dry briquettes that can be stored for landing or incinerated at sea.  Evac’s technology is a 24/7 solution that enables cruise and merchant ships to remain at sea up to seven times longer.

“In an environment when a ship may not use its incinerator, the garbage room will be filled from the floor to ceiling in two days”, says Jari Jokela, Ph.D., Evac Senior Process Specialist.  “Evac’s briquette technology enables a ship to potentially operate without incineration or landing the waste for a full two-week voyage”.

“Waste stored in the traditional plastic bags has a density of 50 to 60 kilos per cubic meter, but the briquette’s density is 550 to 600 kilos per cubic meter”, adds Jokela.

The space savings translate to a dramatic reduction in operating costs – an estimated 25% cheaper than incineration when diesel and energy consumption is considered.

Jokela says the inspiration for the technology came from witnessing how sawmills were creating briquettes.  Evac created a similar technology, in a much more compact form, for use at sea.  Beyond maritime use, Jokela sees application for the technology on offshore oil platforms. Typically staffed by up to 1,000 workers, a reduced volume of garbage will mean fewer trips to remove waste from the platform.

Source: Evac Group

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