Wall Collection Devices (Air Pollution)

01/14/26

“How can we remove particulate matter by sticking it on a wall?”

Particulate matter emissions are harmful to nearby communities. Consequently, people use technology to remove as much particulate matter as possible before emitting. One set of technologies sticks particulate matter on walls to form conglomerations, which can be removed later. TheseWall Collection Devices can work by forcing particles to drop from gravity, hit a wall due to sudden direction changes, or move due to electrostatic attraction. These wall collection devices help the health of countless towns around the world.

Image credit: https://www.graco.com/

• Earth/Climate science
• Engineering
• Urban Systems