Figure 1: Total Petroleum Hydrocarbon degradation profile for each bioreactor treatment. Key: BUNa (Un-amended control); BHKD (Heat killed contol); BNPK (NPK); BAUG (Bioaugumentation); BURE (Urea); BPOUT (Poultry dropping); BCD (Cow dung). No statistically significant difference was recorded between the various bioreactor treatments for TPH.