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EPA RREL'S MOBILE VOLUME REDUCTION UNIT -- APPLICATIONS ANALYSIS REPORT
Citation:
Science Applications International Corporation. EPA RREL'S MOBILE VOLUME REDUCTION UNIT -- APPLICATIONS ANALYSIS REPORT. EPA/540/AR-93/508 (NTIS 94-130275), 1993.
Impact/Purpose:
information
Description:
The volume reduction unit (VRU) is a pilot-scale, mobile soil washing system designed to remove organic contaminants from the soil through particle size separation and solubilization. The VRU removes contaminants by suspending them in a wash solution and by reducing the volume of contaminated material through particle size separation. Most contaminants tend to bind to the fine-sized clay and silt particles; soil washing separates these clay and silt particles from the coarser sand and gravel particles. The VRU was designed to be extremely flexible in terms of equipment and wash water additives; however, it was not designed to be a commercial treatment unit. The VRU was demonstrated at the Escambia Superfund site in Pensacola in 1992. The site, used to treat wood products, was contaminated with polynuclear aromatic hydrocarbons and pentachlorophenol. The VRU successfully separated the contaminated soil into two streams: washed soil and fines slurry. The washed soil was returned to the site while the fines slurry, which carried the majority of pollutants from the feed soil, underwent additional treatment to separate the fines from the water. The demonstration also showed positive impacts of surfactant, pH adjustment, and increased temperature.
URLs/Downloads:
EPA RREL'S MOBILE VOLUME REDUCTION UNIT -- APPLICATIONS ANALYSIS REPORT540_AR-93_508.PDF (PDF, NA pp, 1 KB, about PDF)