Electrifying Toxic Cleanup: Electrodes could stimulate removal of radioactive waste

Inspired by recent successes at using microbes in fuel cells to produce energy, researchers have devised a bioremediation system that electrically stimulates bacteria to break down toxic chemicals in the environment.

ELECTRIC CLEANSER. In this bioremediation system, an electrode donates electrons (e–) to bacteria, which then convert soluble uranium (U6+) in the groundwater to an immobilized form (U4+).