Estimation of contaminant transport parameters for a tropical sand in a sand tank model

Ojuri, O. O. and Ola, S. A. (2010) Estimation of contaminant transport parameters for a tropical sand in a sand tank model. Int. Journal. Environmental. Sciences. Technology., 7 (2). pp. 1-10. ISSN 1735-1472

[img] Text
92220100218.pdf - Published Version

Download (1MB)
Official URL:


This research describes the goals, design and implementation of a quasi natural gradient, laboratory scale, sand tank (aquifer) model experiment. The model was used to study the transport of an inorganic tracer (Chloride) in groundwater, within a tropical aquifer (porous medium) material. Three-dimensional sand tank (1.8 m × 0.3 m × 0.8 m) experiments were conducted to investigate contaminant transport and natural attenuation within the sand tank. In all, 360 samples were collected during 24 sampling sessions, for the three days of the tracer experiments in the Sand Tank. The Owena sand is a poorly graded sand with 88.1 % sand and 11.9 % gravel. Geotechnical properties including; coefficient of uniformity Cu = 2.53, coefficient of gradation Cz = 0.181, hydraulic conductivity K = 5.76 x 10-4 m/s, bulk density ρ = 1.9 Mg/m3, effective porosity ne = 0.215 and median grain diameter D50 = 0.55 mm, were determined. Other relevant hydraulic and solute transport parameters, such as dispersion coefficients and dispersivities were also established for the tropical soil.

Item Type: Article
Uncontrolled Keywords: Aquifer model; Geotechnical properties; Owena sand; Solute transport parameters; Tracer breakthrough
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Mrs Oluwafunmilola Bankole
Date Deposited: 22 Apr 2020 15:16
Last Modified: 22 Apr 2020 15:16

Actions (login required)

View Item View Item