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Full-Text Articles in Engineering
Site Characterization And Analysis Penetrometer System (Scaps) : Assessing Site Cotamination, Purdue Ect Team
Site Characterization And Analysis Penetrometer System (Scaps) : Assessing Site Cotamination, Purdue Ect Team
ECT Fact Sheets
While a number of techniques exist for the remediation of contaminated soils, one of the largest problems is often the initial site assessment. It can be a difficult, expensive and time-consuming process to determine the exact extent of site contamination. The U.S. Army Engineer Waterways Experiment Station (WES) under the sponsorship of the U.S. Army Environmental Center (AEC) initiated the development of the Site Characterization and Analysis Penetrometer System (SCAPS) Research, Development, and Technology Demonstration Program to provide the Department of Defense (DoD) with a rapid and cost-effective means to characterize soil conditions at DoD sites undergoing installation restoration (cleanup).
Encapco Emulsified Treated Base Product, Purdue Ect Team
Encapco Emulsified Treated Base Product, Purdue Ect Team
ECT Fact Sheets
Encapco’s organic-based asphalt emulsion is used to immobilize lead in contaminated soil. Unlike other fixation or stabilization technologies, which physically bind contaminants in the soil matrix, Encapco’s emulsion is capable of chemically fixating lead. The Encapco process employs a chemical binding reaction in addition to encapsulation to meet regulatory leaching tests. The Encapco process has been evaluated on a number of contaminated materials ranging from silty sand from a quarry site, contaminated sand from a steel mill, and a foundry sand.
In Situ Enhanced Soil Mixing, Purdue Ect Team
In Situ Enhanced Soil Mixing, Purdue Ect Team
ECT Fact Sheets
In Situ Enhanced Soil Mixing (ISESM) is a remediation technology that has been used to remediate soils contaminated with volatile organic compounds (VOCs). The technology was developed by industry with the assistance of the U.S. Department of Energy’s Office of Science and Technology and the Office of Environmental Restoration.
Extraction Of Contaminated Soil Using High Pressure Jet Grouting, Purdue Ect Team
Extraction Of Contaminated Soil Using High Pressure Jet Grouting, Purdue Ect Team
ECT Fact Sheets
Removal of contaminated soil underneath existing structures causes settlement. There is a need for a remediation technology that eliminates this problem. The jet grouting by the triple rod system can be combined with an on site remediation technology (e.g., soil washing). Jet grouting was developed primarily for underpinning and/or excavation support. The benefits of this technology lie in the future reduction of structural settlement, and site access flexibility.
In-Situ Vitrification, Purdue Ect Team
In-Situ Vitrification, Purdue Ect Team
ECT Fact Sheets
While landfills are the predominant form of solid-waste disposal for municipalities in the U.S., people are objecting to the establishment of new landfills in their communities. Decreasing availability of land, worries about potential health problems and a growing concern for the environment have made the disposal of solid waste a challenge. This technology represents a safety improvement. There is no need for contaminated soil transportation and handling. The need for disposal landfills disappears. Any type of radioactively contaminated buried waste unit, which because of its high activity represents significant risk for exhumation and re-disposal, would be a potential application for …
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
ECT Fact Sheets
The technology is an enhancement process designed for integration with primary in-situ treatment technologies such as vapor extraction, bioremediation, thermal treatment, and 'pump and treat'. Fractures in dense soils are created, using hydraulic or pneumatic methods, making existing fractures larger to get at contaminants and allowing a more effective distribution of the extractive air throughout the soil. Pneumatic Fracturing was jointly developed by Accutech Remedial Systems Inc. and the New Jersey Institute of Technology. It involves the injection of air (or another gas) into a contaminated geologic formation at sufficient pressure and flow rate to create artificial fractures or to …