724-335-7273 | info@geo-solutions.com HOME SERVICES SOIL MIXING STEAM ENHANCED SOIL MIXING STEAM ENHANCED SOIL MIXING Geo-Solutions’ steam enhanced soil mixing can be used to perform thermal remediation by injection of hot air and steam. This technique can be cost effectively used to remove volatile organic compounds (VOCs) and semi volatile organic compounds (SVOCs) and has been used successfully on a number of project sites in the last 15 years. The process is completed using standard soil mixing auger(s) that shear and mix the soils while steam and hot air are injected through ports on the auger(s). The steam and hot air raise the temperature in the subsurface to approximately 65° to 95° C causing thermal desorption and volatilization of the contaminants from soil particles and pores. Once vaporized, the compounds are carried to the surface with hot air, collected under a negative air pressure shroud, and then handled using ex-situ vapor phase treatment equipment. The in situ thermal technology using steam and hot air has removal efficiencies of 90 to 99 percent for VOCs and 50 to 90 percent for SVOCs (La Mori, et al 2010). Compared to other methods of thermal remediation, soil mixing offers numerous advantages including 100% exposure of the contaminants to the hot air and steam. In addition to mass contaminant removal via thermal treatment, a polishing step is often performed to extend the treatment. For example, a reducing agent like zero valent iron (ZVI) is often mixed into the soils post steam enhanced soil mixing treatment on sites with chlorinated solvents. Slurry Walls Soil Mixing Steam Enhanced Soil Mixing Barrier Walls Excavation/Structural Support Zero Valent Iron Geotechnical Excavator Mixing In-Situ Stabilization/Solidification In-Situ Chemical Oxidation In-Situ Chemical Reduction Rotary Tool Mixing Bio-Polymer Trenches Permeable Reactive Barriers Grouting Geo-Trencher Vibrated Beam Cutoff Walls STEAM ENHANCED SOIL MIXING CASE STUDIES Fort Wayne, IN: Large Diameter Auger Steam Stripping and ZVI Mixing © Copyright 2017-2020. All Rights Reserved. Corporate Headquarters: 1250 Fifth Avenue New Kensington, PA 15068 Phone: (724) 335-7273 Email: info@geo-solutions.com FOLLOW US Facebook Twitter Youtube Linkedin

724-335-7273 | info@geo-solutions.com HOME NEWS & EVENTS EVENTS, NEWS OFFICE UPDATE OFFICE UPDATE As businesses begin to reopen and progress into the Recovery phase of the COVID-19 crisis, Geo-Solutions’ employees have resumed daily operations at our offices. You will now be able to reach us through normal channels at any one of our offices. Events, News Geo-Solutions 0 Comments Share this post Facebook Twitter LinkedIn Email Leave a Reply You must be logged in to post a comment. IN-SITU SOLIDIFICATION/STABILIZATION NEWS PERMEABLE REACTIVE BARRIERS QUALITY CONTROL REMEDIATION SAFETY SEDIMENTS SITE REMEDIATION SOIL MIXING STABILIZATION STAFF TRADE SHOWS © Copyright 2017-2020. All Rights Reserved. Corporate Headquarters: 1250 Fifth Avenue New Kensington, PA 15068 Phone: (724) 335-7273 Email: info@geo-solutions.com FOLLOW US Facebook Twitter Youtube Linkedin