Environmental Science
8 years ago

Toxic flame retardants in sewage sludge vanish under new microbial treatment.

The Science of The Total Environment
Dynamics of brominated flame retardants removal in contaminated wastewater sewage sludge under anaerobic conditions
Hana Stiborová, Jana Vrkoslavová, Jana Pulkrábová, Jan Poustka, Jana Hajšlová, Kateřina Demnerová

Paper Summary

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Researchers studied how certain chemicals in sewage sludge can be broken down by natural bacteria in the absence of oxygen. They found that after 15 months, the levels of these chemicals decreased significantly, with some being completely degraded. The higher brominated chemicals were removed faster than the lower ones, and a major mechanism of breakdown was debromination. Overall, about half of the targeted chemicals were removed from the sludge samples.