International Journal of Academic Engineering Research (IJAER)   Year: 2024 | Volume: 8 | Issue: 4 | Page No.: 28-34 Effectiveness of African Palm (Raffia Farinifera) Substrate in the Bioremediation of Oil-Based Drill Cuttings Download PDF Bright Nweke, Reuben N. Okparanma and Josiah. M. Ayotamuno Abstract: This study determines the effect of dry raffia palm substrate for degradation of oil-based drill cuttings bioremediation. The experiment was carried out at the Rivers Institute of Agricultural Research and Training (RIART) located in the Rivers State University, Port Harcourt. Samples of oil-based drill cuttings were bulk in eleven reactors with four replications (T1, T2, T3-T11). The physiochemical properties of the initial drill cuttings were analyzed. Also, the physiochemical properties of the oil-based drill cuttings of substrate such as. Total Petroleum Hydrocarbon, Benzene Toluene Ethylene Xylene and Polycyclic Aromatic Hydrocarbon were analyzed in the laboratory before and after treatments. Total Petroleum Hydrocarbon, Benzene Toluene Ethylene Xylene and Petroleum Aromatic Hydrocarbon reduction were drastically reduced in all treatment options at the end of 16weeks of remediation. Total Petroleum Hydrocarbon, Petroleum Aromatic Hydrocarbon and Benzene Toluene Ethylene Xylene rate of percentage reduction ranges from 83 to 84% in all the treatment option for the period of 16weeks. Results also displayed high coefficient of determination of (R2) between the range of 0.9789 to 0.9974 in all the treatment option. The results of the ANOVA showed that significant difference at 95% and highly significant at 99% confidence level. Similarly, the coefficient of variation of every low percentage were revealed for the treatment option respectively. This confirmed that the experimental error was very low and reliable. It is however recommended that the dry raffia palm substrate should be used for bioremediation of oil-based drill cuttings respectively.