Physicochemical and Mineral Compositions of Wastewater and Soils from Two Selected Abattoirs in Warri, Delta State, Nigeria

Abstract

This study was carried out to evaluate the physicochemical and mineral compositions of abattoir wastewater and contaminated soils from two selected abattoirs in Warri, Delta State and therefore to assess the impact of abattoir activities on the surrounding soil environment. The pH values of the abattoir wastewater (8.2 ± 0.04 and 8.0 ± 0.14) and contaminated soil (7.28 ± 0.31 and 7.75 ± 0.21) were higher than the control at 6.4 ± 0.01 and 6.6 ± 0.01 (control water) and 5.4 ± 0.02 and 4.2 ± 0.01 (uncontaminated soil). The BOD and COD values for abattoir A wastewater (110 ± 2.82 mg/L and 2.64 ± 2.82 mg/L) and abattoir B (398.5 ± 2.10mg/L and 351 ± 1.41 mg/L) were higher than the WHO standard.