Enhanced Bioremediation of Soil Artificially Contaminated with Petroleum Hydrocarbons after Amendment with Capra aegagrus hircus (Goat) Manure

Biotechnology Research International
T P NwoguC J Ogugbue

Abstract

This study was carried out to evaluate the biostimulant potentials of Capra aegagrus hircus manure for bioremediation of crude oil contaminated soil (COCS) under tropical conditions. 1 kg of COCS sample was amended with 0.02 kg of C. a. hircus manure and monitored at 14-day intervals for total petroleum hydrocarbon (TPH), nutrient content, and changes in microbial counts. At the end of the study period, there was 62.08% decrease in the concentration of TPH in the amended sample compared to 8.15% decrease in the unamended sample, with significant differences (P < 0.05) in TPH concentrations for both samples at different time intervals. Similarly, there was a gradual decrease in the concentrations of total organic carbon, nitrogen, phosphorus, and potassium in both samples. The culturable hydrocarbon-utilizing bacteria (CHUB) increased steadily from 8.5 × 10(5) cfu/g to 2.70 × 10(6) cfu/g and from 8.0 × 10(5) cfu/g to 1.78 × 10(6) cfu/g for both samples. Acinetobacter, Achromobacter, Bacillus, Flavobacterium, Klebsiella, Micrococcus, Pseudomonas, and Staphylococcus were isolated from amended sample with Pseudomonas being the predominant isolated bacterial genus. This study demonstrated that C. a. hircus manure is a good biostimul...Continue Reading

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Citations

Apr 21, 2016·Tumori·Rosanna LacalamitaAngelo Paradiso
Feb 19, 2020·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Danielle Aparecida Duarte NunesEliana Flávia Camporese Sérvulo
Jul 26, 2019·Environmental Science. Processes & Impacts·Udeme John DicksonNicholas Ray
Nov 15, 2020·Environmental Science and Pollution Research International·Macdonald Ogorm MafianaShi-Weng Li
May 22, 2021·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Joseph E AgbajiGideon O Abu

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