TY - JOUR
T1 - Sulfur hexafluoride gas tracer studies in streams
AU - Hibbs, David E.
AU - Parkhill, Kenneth L.
AU - Gulliver, John S
PY - 1998/8
Y1 - 1998/8
N2 - The air-water mass transfer coefficients, dispersion coefficients, and mean residence times in two experimental streams and one natural stream are measured using a variation of the standard volatile tracer-dye technique. Sulfur hexafluoride (SF6) is used as the volatile tracer and rhodamine WT is used as the conservative tracer. The low limit of quantification of SF6 makes it possible to inject SF6-rich water into many streams and avoid complications with dosing a stream with a gaseous tracer. The experimental methods are described in detail. The SF6 measurements were extremely precise, producing smooth concentration time curves. The SF6 measurements collected in side-by-side experimental channels yielded similar values of the gas transfer coefficient.
AB - The air-water mass transfer coefficients, dispersion coefficients, and mean residence times in two experimental streams and one natural stream are measured using a variation of the standard volatile tracer-dye technique. Sulfur hexafluoride (SF6) is used as the volatile tracer and rhodamine WT is used as the conservative tracer. The low limit of quantification of SF6 makes it possible to inject SF6-rich water into many streams and avoid complications with dosing a stream with a gaseous tracer. The experimental methods are described in detail. The SF6 measurements were extremely precise, producing smooth concentration time curves. The SF6 measurements collected in side-by-side experimental channels yielded similar values of the gas transfer coefficient.
UR - http://www.scopus.com/inward/record.url?scp=0031743560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031743560&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)0733-9372(1998)124:8(752)
DO - 10.1061/(ASCE)0733-9372(1998)124:8(752)
M3 - Article
AN - SCOPUS:0031743560
SN - 0733-9372
VL - 124
SP - 752
EP - 760
JO - Journal of Environmental Engineering
JF - Journal of Environmental Engineering
IS - 8
ER -