Analysis of sorption of vehicle liquids with sand that appear after car accidents reproduced in laboratory scale

Abstract

Introduction: Increasing number of vehicles corelates with an increase in car accidents’ risk which pose a threat of environment contamination. Therefore, this study was undertaken to analyze the sorption process for two vehicle fluids contacted with sand. Methods and findings: Sorption process was analyzed with the use of dedicated experimental set-up in the laboratory scale. Contact of sand (50cm3) with 100cm3 of two sorbates (brake fluid-BF and diesel-D) with the following properties: pure BF, pure D, 0.75-BF and 0.25-D, 0.5-BF and 0.5-D, 0.25-BF and 0.75-D were investigated. Finally, non-linear regression for the mathematical description of sorption process was prepared. The results indicated that the higher amount of D in mixture the higher absorption of sorbate by sand. Moreover, the highest sorption was recorded for pure BF and the lowest for the mixture of equal amount of BF and D. Furthermore, analysis of absorbed mixtures volume indicated that for the composition of 0.25-BF and 0.75-D, 29ml of liquid was absorbed. While, for the equal amount of brake fluid and diesel 30ml of liquid was absorbed. Finally, for the composition of 0.75-BF and 0.25-D, 27ml of liquid was absorbed.