STUDY OF IN-SITU AND LABORATORY HYDRAULIC CONDUCTIVITY OF CONTAMINATED SOIL WITH OILY WASTEWATER
Abstract
This study aims to investigate the effect of contaminated soil samples with oily wastewater which were
taken from Kawergosk refinery (20 km west of Erbil city). Laboratory constant head permeability tests on
contaminated soil samples with oily wastewater have been conducted. Also, One-Dimensional (1-D) and
Three-Dimensional (3-D) in-situ permeability tests were performed. A noticeable decrease in the values of
hydraulic conductivity coefficient (k) have been observed for Contaminated Soil Samples comparing with
uncontaminated samples. Results of hydraulic conductivity coefficient obtained from one dimensional
consolidation tests were increased with increasing of applied stresses. The results of field permeability
tests revealed that the surrounding lands of Kawergosk refinery lies within the range of semi-permeable
area for urban development while the majority part of the area lies within the range of moderate area for
agricultural and conservation purposes.
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