In a groundbreaking study funded by the NIEHS, researchers have discovered a new method to clean up aquatic ecosystems contaminated with polychlorinated biphenyls (PCBs). By utilizing biochar, a carbon-rich byproduct of burning plant matter, in combination with bacteria, the team has found a cost-effective strategy to degrade these harmful chemicals that persist in sediments.
The team investigated various types of biochar, including those made from burning corn kernels, bamboo, and wood, as well as activated carbon commonly used in water treatment. They found that bacteria cells attached to the corn kernel biochar in greater numbers compared to other types, leading to increased bacterial growth and expression of genes involved in PCB degradation.
This innovative approach shows promise in cleaning up contaminated sediments in aquatic environments while safeguarding public and ecosystem health. The findings underscore the potential of combining biochar made from corn kernels with PCB-degrading bacteria as an effective and affordable solution for tackling environmental pollution.
This study opens up new possibilities for remediation strategies, offering a sustainable and eco-friendly method to address the persistent issue of PCB contamination in aquatic ecosystems. The researchers hope that their findings will pave the way for a cleaner and healthier environment for both humans and wildlife.
