Cleanup method uses activated carbons to anchor toxins to bottom of the bay

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A cleanup experiment led by Richard Luthy involves mixing carbons into contaminated mud to target PCBs from the shipyard in San Franciscos Hunters Point that seeped into the bay and settled in the sediment.
A cleanup experiment led by Richard Luthy involves mixing carbons into contaminated mud to target PCBs from the shipyard in San Francisco’s Hunters Point that seeped into the bay and settled in the sediment.

Imagine a Brita filter big enough to clean up San Francisco Bay. Richard Luthy, chair of Stanford's Department of Civil and Environmental Engineering, has a plan to clean polluted sediment at Hunters Point in San Francisco with activated carbon—the same technology in many water filters. Luthy proposes to sequester dangerous toxins by mixing activated carbon, a type of carbon with a large surface area, into the bay's contaminated sediment.


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