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New laser-drilled filter can remove microplastics from wastewater

Microplastics have been a persistent environmental problem, and it is now known that microplastics have permeated the terrestrial, freshwater, and marine ecosystems. Water treatment plants provide a viable solution for the removal of microplastics from the environment. However, until now, these plants have not been able to sufficiently filter out tiny microplastics in wastewater.


In the SimConDrill project, Fraunhofer ILT has joined forces with industrial partners to build a maintenance-free filter that stops microplastics in wastewater treatment. The challenge was to drill as many holes as possible, as small as possible, in a steel foil in the shortest time possible, says project manager Andrea Lanfermann.

Fraunhofer ILT engineers used the multi-beam process – in which a matrix of identical beams is generated from a laser beam via a special optical system – with an ultrashort-pulse laser (TruMicro 5,280 Femto Edition) to drill holes simultaneously with 144 beams.

In the first test, the fine powder from 3D printers was filtered from contaminated water. The setup is now being tested in a wastewater treatment plant under real conditions.

Native American tribe gets its land back after being displaced nearly 400 years ago

Will they able to make good use of this land?🤔🤔.


The Rappahannock Tribe, a Native Tribe in Virginia, has reacquired 465 acres of sacred land at Fones Cliff.

Secretary of the Interior Deb Haaland and US Fish and Wildlife Service Director Martha Williams celebrated the tribe’s reacquisiton of the land Friday, according to a press release from the Department of the Interior.

“We have worked for many years to restore this sacred place to the Tribe,” said Rappahannock Tribe Chief Anne Richardson, according to the Chesapeake Conservancy. “With eagles being prayer messengers, this area where they gather has always been a place of natural, cultural and spiritual importance.”

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