Oil vacuum cleaner developed for spill-affected shorelines

The MOSE (Mechanical Oil spill Sanitation Equipment) oil spill vacuum

The Deepwater Horizon oil spill earlier this year prompted many researchers to concentrate their efforts on developing better ways to clean up oil after such disasters.

We’ve looked at approaches such as autonomous robots andunderwater separators to collect the oil while it is still at sea, but students at the Norwegian University of Science and Technology (NTNU) have developed a novel approach to dealing with the oil once it winds up on shore – a vacuum cleaner.

Currently, cleaning up oil from the shoreline usually involves soaking up the oil with an absorbent material, such as bark or peat moss. Workers then have to remove the heavy, oil-soaked material and the remaining oil residue may have to be scrubbed off rocks.

To automate this arduous task the NTNU students developed a new kind of vacuum cleaner called MOSE (Mechanical Oil spill Sanitation Equipment) that blows bark or other absorbent materials onto oil spills, and then sucks the material up again. Its developers say it is four times more efficient in cleaning up after oil accidents than conventional techniques.

After the machine sprays the absorbent material onto the spill, rotating brushes work the oil and the absorbent material together. Once they are thoroughly mixed, the direction of the rotating brushes is reversed and the material is sucked up using a portable compressor/vacuum pump while the rocks are simultaneously scrubbed.

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