TY - JOUR
T1 - Air sparging tracer test to investigate the flow path
AU - Tsai, Yih Jin
AU - Kuo, Ming Ching Tom
AU - Huang, Edward T.S.
N1 - Funding Information:
This research has been supported by grants from National Science Council of Republic of China (NSC 85-2211-E-006-035, NSC 86-2211-E-006-006, NSC 87-2211-E-006-015, NSC 88-2218-E-006-016).
PY - 2001
Y1 - 2001
N2 - The paper presents a useful method for investigating the flow path of the injected air, estimating the radius of influence, and assisting the design of well spacing of sparging wells. The method applies both tracer and modeling approach. A field test using helium as a tracer was conducted on an air sparging pilot. A 3-dimensional, 3-phase compositional model was utilized to simulate the air sparging process at the pilot. The model was first calibrated with the tracer concentrations observed in the field test at various locations between the air sparging well and the soil vapor extraction well. The calibrated model was then used to predict the flow path of the injected air and to simulate the water saturation distributions in the aquifer. The steady-state water saturation distributions was found useful for estimating the radius of influence of air sparging and for designing the well spacing of sparging well.
AB - The paper presents a useful method for investigating the flow path of the injected air, estimating the radius of influence, and assisting the design of well spacing of sparging wells. The method applies both tracer and modeling approach. A field test using helium as a tracer was conducted on an air sparging pilot. A 3-dimensional, 3-phase compositional model was utilized to simulate the air sparging process at the pilot. The model was first calibrated with the tracer concentrations observed in the field test at various locations between the air sparging well and the soil vapor extraction well. The calibrated model was then used to predict the flow path of the injected air and to simulate the water saturation distributions in the aquifer. The steady-state water saturation distributions was found useful for estimating the radius of influence of air sparging and for designing the well spacing of sparging well.
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U2 - 10.1081/ESE-100104127
DO - 10.1081/ESE-100104127
M3 - Article
C2 - 11501321
AN - SCOPUS:0034910097
SN - 1093-4529
VL - 36
SP - 999
EP - 1014
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 6
ER -