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By: Ukpaka Chukwuemeka Peter, Samuel Nkanata Philip, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, and Abraham Peter Ukpaka.
1Professor, Department of Chemical/Petrochemical Engineering, Rivers State University Port Harcourt, Rivers State, Nigeria
2Research Student, Department of Chemical/Petrochemical Engineering, Rivers State University Port Harcourt, Rivers State, Nigeria
3Research Student, Department of Industrial Engineering, College of Engineering, Computer Studies and Architecture, Lyceum of the Philippines University Cavite, Philippines
4Research Student, Department of Pharmacy, MSB Medical School Berlin GmbH – Hochschule für Gesundheit und Medizin
5Research Student, Department of Computer Engineering, College of Engineering, Computer Studies and Architecture, Lyceum of the Philippines University Cavite, Philippines
Crude oil pollution is a major environmental concern that can cause significant damage to soil ecosystems. Bioremediation, a natural process in which microorganisms degrade pollutants, has emerged as a promising approach for the remediation of crude oil-contaminated soil. Grape leaf powder (Vitis Vinifera), a readily available and inexpensive organic material, has been shown to stimulate microbial activity and enhance bioremediation. This study investigated the effectiveness of grape leaf powder as a biostimulant for the remediation of crude oil-contaminated sandy soil. The study examined the effects of two dosages of grape leaf powder (50g and 100g) for sundried and room-dried samples on the reduction of total petroleum hydrocarbon (TPH) concentrations and microbial counts in the soil. The results showed that both dosages of grape leaf powder were effective at reducing TPH concentrations and increasing microbial counts in the soil. However, the room-dried vitis vinifera achieved higher TPH reduction than sundried at 100g dosage reducing TPH concentrations by up to 96.3% after 35 days. The effectiveness of grape leaf powder is likely due to its high levels of organic matter and nutrients, which provide a food source and stimulate the growth and activity of microorganisms. This study demonstrates that grape leaf powder is a promising, sustainable, and environmentally friendly biostimulant for the remediation of crude oil-contaminated sandy soil.
Citation:
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