Process information
| Key Data Set Information | |
| Location | DK |
| Geographical representativeness description | The data collection for the LCA was conducted for a smaller (180 m2) site representing typical Danish sites where remediation using ISTD has been conducted. |
| Reference year | 2013 |
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| Use advice for data set | This dataset should be used with understanding that it is specific to a small-scale (180 m2) typical Danish site where ISTD remediation using ET-DSP has been applied. The LCA data collection covers energy and material consumption, equipment use during construction and transportation activities, well field materials construction, capping materials, air and water treatment systems, and electricity consumption. Please ensure the correct application of this LCA data in the broader context of remediation project planning, taking into account variations in geographies, climates, and regulatory environments. Furthermore, translation of these results to other sites should account for differences in site size, contaminant concentration, and subsurface conditions. |
| Technical purpose of product or process | The Electro-Thermal Dynamic Stripping Process (ET-DSP) is used for in situ soil remediation at sites with low-permeability contaminant zones. This technique is applied particularly for the extraction and removal of high concentrations of volatile contaminants like perchloroethylene (PCE), which is a common solvent in dry cleaning and industrial degreasing operations. |
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| General comment on data set | From Table 1 of the literature (Overview of Test Sites Used as a Basis for Data Collection), it can be seen that, the area and volume of the small site are 180 m2 and 1175 m3. Mass of contaminant is 400 kg of PCE. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Functional Unit | Results are presented per unit volume (1 m3 ) of soil remediated in order to compare results for each site. |
| Technological representativeness | |
| Technology description including background system | ET-DSP™ places steel electrodes in the wells, applied to a low-permeability contaminant source zone. soil is heated to around 100 °C to enhance the volatilization of the chlorinated solvents. In this study, the solvent vapors are assumed to be continuously extracted from the subsurface under vacuum and treated above ground in an activated carbon air filtration unit and, as a proportion of the extracted vapors also condense, the condensed aqueous phase is treated in a separate activated carbon water filtration unit. A vapor cap of 40 cm foam concrete is installed above the heated zone in order to prevent intrusion of rain, create a vapor-tight seal to the surface and to reduce heat loss to the atmosphere. All technologies require the installation of a number of wells to generate soil heating as well as extraction wells. |
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Modelling and validation
Administrative information
Inputs and Outputs