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Experimental investigations of unconfined aquifer pollution from recharge basins
Author(s) -
Guvanasen Varuttamadhira,
Volker Raymond E.
Publication year - 1983
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr019i003p00707
Subject(s) - groundwater recharge , aquifer , geology , tracer , hydrology (agriculture) , structural basin , groundwater , front (military) , water table , soil science , flume , geotechnical engineering , environmental science , geomorphology , mechanics , flow (mathematics) , oceanography , physics , nuclear physics
Experiments in a sand‐filled flume simulate contaminant movement in an unconfined aquifer from a long strip recharge basin. Sodium chloride is used as a tracer with its distribution being monitored via electrical conductivity measurements controlled and stored through a minicomputer. The effects of initial saturated depth and magnitude of the recharge rate on the pattern of contaminant movement are discussed. Comparisons with results from numerical models are provided for the speed of movement of the contaminant front and the thickness of the mixing zone as well as for the rise in the free surface level.