Painting with Toxic Runoff

Allison Guy
September 4th 2013

Throughout the US, coal mines abandoned before environmental laws produce acid mine drainage, a soup of toxins that can turn contaminated streams as acidic as lemon juice. One of the main byproducts of acid mine drainage, ferric oxyhydroxides, also happen to be the base for commercial red and yellow paints. Guy Riefler, a professor of environmental engineering at Ohio University, has invented a method for collecting the iron sludge in the runoff and converting it into pigments. With the help of artist John Sabraw, Riefler is tweaking his process with an eye to eventually manufacturing commercially viable paints. There's certainly no shortage of raw materials: a single seep near Ohio University oozes out enough sludge to produce one ton of pigments every day.

Via Smithsonian Magazine.

Share your thoughts and join the technology debate!public: 1

Be the first to comment

What is your view on the coronavirus?


Koert van Mensvoort: The virus makes us aware of other lifeforms with other perspectives, desires and needs. It also teaches us that we are one humanity. These viral invaders don’t discriminate on the basis of nationality, race, income, social status, political or sexual preference. We are together and must work together to overcome. Stay safe.

Comment
Already a member? Login.