Title: Using Surfactants to Enhance Bioremediation of PAHs in Soil 
Resource Type: document --> public information 
Country: USA 
Language(s): English
 
Year: 2017 
Author 1/Producer: US Environmental Protection Agency (US EPA) 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Report/Document number/description: Research Brief 266 
Publisher Country: USA 
Publisher web link (root): http://tools.niehs.nih.gov
Report / download web link (=direct link): https://tools.niehs.nih.gov/srp/researchbriefs/view.cfm?Brie ...  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->Ex situ treatment technologies
 
Short description: A second-stage treatment using low levels of surfactants, which are commonly used as dispersing agents, may be a promising method to maximize removal of polycyclic aromatic hydrocarbons (PAHs) at hazardous waste sites, according to findings from the University of North Carolina at Chapel Hill Superfund Research Program (SRP) Center. Researchers identified specific surfactants that enhanced the removal of PAHs from previously treated soil by making the chemicals more accessible for degradation by bacteria. Even though this second-stage treatment removed PAHs, it also increased soil toxicity in many cases, emphasizing the need to better understand toxic by-products of PAH remediation 
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 06/03/2017