Leachate Characteristics and Impact on Groundwater Quality Underlain the Municipal Dumpsite in Ikoto, Ogun, Southwestern Nigeria
Publication Date: 29/09/2020
Author(s): Olukayode Oluwakemi Omolara, Banjoko Oluwole Adebayo , Ogunfolu Ibrahim Abidemi.
Volume/Issue: Volume 3 , Issue 5 (2020)
Abstract:
Leachates by percolating through landfill liners and porous subsoil can cause groundwater pollution and adverse effects on public health depending on the chemical and biological composition of the leachate pollutants. Physico-chemical and bacteriological characteristics of leachate and water samples in/and around the Ikoto Municipal dumpsite, Ogun Southwestern Nigeria were assessed and compared to check for the impact of landfill leachate pollutants on the groundwater quality of the area. Twenty-five (25) leachate samples on the dumpsite and Ten (10) water samples around the dumpsite were collected and analysed following standard procedures. The results when compared showed that some tested parameters (with CO32- having highest mean concentrations of 1509.7mg/L and 32.90mg/L in leachate and water sample respectively) were present in both samples at close concentration range thus indicating contamination of the groundwater by leachate percolation; thus, rendering the water unhygienic and unfit for consumption and domestic use without treatments.
