Location: Commodity Utilization Research
2013 Annual Report
This is part of an unfunded voluntary effort at UMBC to evaluate the feasibility of using activated carbons made from poultry litter in the remediation of contaminated sediments. Adsorption studies with mercury were conducted with the activated carbons obtained from ARS along with a range of other commercially available activated carbons and biochars. In addition, the activated carbons and biochars were amended to mercury contaminated sediment obtained from a Department of Defense Superfund site to evaluate the effectiveness of the carbons in reducing the methylation of mercury and bioavailability of mercury and methylmercury to the lake organism Leptocheirus plumulosus (a small freshwater shrimp-like animal). The collaborator preliminary concluded that the char made by USDA-ARS out-performed all the other char materials tested as it pertained to removal of mercury from water.
Also, significant progress has been made in taking sediment remediation technologies in the field. A feature 2011 article (“In-situ sorbent amendments: A new direction in contaminated sediment management” in Environ. Sci. Technol. 45: 1163-1168) published by the UMBC collaborator summarized the development of the work on activated carbons and biochars and how the effort is leading to pilot-scale studied being performed at various sites in the country and in Norway.
All planned work has been completed.