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A Conceptual Model of Field Behavior of Air Sparging and Its Implications for Application
Author(s) -
Ahlfeld David P.,
Dahmani Amine,
Ji Wei
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.tb00491.x
Subject(s) - air sparging , sparging , context (archaeology) , environmental science , secondary air injection , petroleum engineering , environmental engineering , environmental remediation , waste management , engineering , geology , chemistry , contamination , ecology , paleontology , biology
The basic physics of air flow through saturated porous media are reviewed and implications arc drawn for the practical application of air sparging. A conceptual model of the detailed behavior of an air sparging system is constructed using elements of multiphase flow theory and the results of recent experimental work. Implications of the conceptual model on air sparging topics are discussed. The meaning of radius of influence in the context of air sparging is found to be ambiguous. The hydrodynamic effects of air sparging such as mounding of ground water and flow impedance are explored. Limitations on rates of remediation and operational strategics for improving sparging effectiveness are examined.