New filtration solution for Wärtsilä BWMS

Designed by Wärtsilä Water and Waste’s partner FilterSafe, the ‘Manta’ filter features a OneMotion scanner that cleans the screen in a single rotation.

The companies report that organic load tests at the DHI test facilities in Denmark have shown that the BV-approved Manta filter exceeded IMO standards by a factor of 22 without any reduction in the flow rate. Removal efficiency was a reported 99.96% of all organisms over 50 microns.

“This takes BWMS filtration to the next level and will be an important addition to the Aquarius UV system,” said Leif Abildgaard, sales director at Wärtsilä Water and Waste.

“The impressive test results validate the effectiveness of the Manta filter, which will add considerable value to our customers’ operations,” he added.

To meet the needs of UV secondary treatment, the Wärtsilä Aquarius UV system uses a Manta filter with a 25 micron smartweave screen. The non-pleated screen prevents sediment from becoming trapped, and there is no cake build-up across the screen.

The Wärtsilä Aquarius UV BWMS is the first system to be fitted with the new filter. Class and IMO equivalency testing is currently being finalised and the US Coast Guard has approved the use of the Manta filter in its authorised BWMS installations.