Premium
Considerations for the Design of In Situ Vapor Extraction Systems: Radius of Influence vs. Zone of Remediation
Author(s) -
Johnson Paul C.,
Ettinger Robert A.
Publication year - 1994
Publication title -
groundwater monitoring and remediation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 47
eISSN - 1745-6592
pISSN - 1069-3629
DOI - 10.1111/j.1745-6592.1994.tb00473.x
Subject(s) - remedial education , radius , soil vapor extraction , environmental remediation , remedial action , extraction (chemistry) , effective radius , in situ , arc (geometry) , environmental science , computer science , engineering , petroleum engineering , simulation , chemistry , contamination , mathematics , mechanical engineering , physics , chromatography , computer security , ecology , mathematics education , quantum mechanics , galaxy , biology , organic chemistry
When designing in situ soil vapor extraction systems, the number and placement of vapor extraction wells arc typically based on the radius of influence determined from some combination of pilot test data, theoretical considerations, and experience. In this report, we examine common methods used to determine the radius of influence, and through examples we illustrate how effective this remedial design approach is. Significant conclusions arc the following: (a) systems designed by radius of influence‐based approaches may never achieve desired remedial goals: (b) systems designed by radius of influence‐based approaches may result in longer operation times and higher total costs than a system that incorporates remedial goals and some level of fundamentally based predictive modeling: and (c) at best, the radius of influence‐based approach ensures containment of contaminant vapors.