How in situ amendment is paving the way for more effective remediation

13 June 2018

In situ amendment of surface sediment is emerging as an innovative and cost-effective approach to sediment remediation, especially in geographic areas where traditional methods would be more difficult to implement. 


Victor Magar

Victor S. Magar

PhD, PE, Principal
T: +1 312 288 3840

A new study co-authored by Principal Victor Magar and Senior Consultant Kyle Fetters reveals that in situ amendment of surface sediment with activated carbon is a promising technique for reducing the availability of hydrophobic organic compounds in surface sediment. The authors’ findings were published in the June 2018 issue of Environmental Toxicology and Chemistry, which publishes work related to environmental toxicology, environmental chemistry and hazard/risk assessment.

The study, titled “Performance of an In Situ Activated Carbon Treatment to Reduce PCB Availability in an Active Harbor,” evaluated the amendment of an area adjacent to and beneath the pier of an active military harbor, where a 4% addition of activated carbon in the surface sediment resulted in a nearly 80% reduction in hydrophobic organic compounds after 10 months, and approximately 90% in 33 months. Further, the dosage amount did not appear to impair benthic invertebrates in the area. 

The authors encourage the consideration of activated carbon amendments for similar logistically challenging settings in contaminated sediment sites and as an alternative to traditional sediment remedies.

To learn more, read the article abstract or contact Victor directly.

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