Determination of Maximum Horizontal Distance (XMHD) Travelled by Landfill Leachate from Lapite Dumpsite in Ibadan, Southwestern Nigeria

Abstract

Abstract This study was designed to determine Maximum Horizontal Distance (XMHD) travelled by landfill leachate. Twenty - nine Schlumberger Vertical Electrical Soundings (VES) were conducted at 10.0m intervals away from four sides A, B, C and D of Lapite dumpsite. One VES point conducted outside the vicinity of the dumpsite served as a control. VES data were processed. Lowest resistivity values (Y) of VES points and the control point (Yc) were extracted. Curves of Y against X fitted best to yield an equation. XMHD was determined from the generated equation when Y = Yc. The determined (XMHD) on the four sides ranged from78.95m to 179.86m.