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首页> 外文期刊>Journal of Microbiology, Biotechnology and Food Sciences >EFFECT OF REFINED PETROLEUM PRODUCTS CONTAMINATION ON BACTERIAL POPULATION AND PHYSICOCHEMICAL CHARACTERISTICS OF CULTIVATED AGRICULTURAL SOIL
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EFFECT OF REFINED PETROLEUM PRODUCTS CONTAMINATION ON BACTERIAL POPULATION AND PHYSICOCHEMICAL CHARACTERISTICS OF CULTIVATED AGRICULTURAL SOIL

机译：精制石油产品的污染对耕作农业土壤细菌种群和理化特性的影响

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An investigation into the effect of refined petroleum products contamination on bacterial population and physicochemical characteristics of cultivated agricultural soil was carried out. The soil samples obtained from the Teaching and Research Farm, Obakekere, Federal University of Technology, Akure, Ondo State were contaminated with varying volumes of petrol, diesel and kerosene. The results revealed higher bacterial populations in uncontaminated soils than contaminated soils. The counts of bacteria ranged from 3.0 × 105 to 5.0 × 105 cfu/g in uncontaminated soils and 1.0 × 105 to 3.0 × 105 cfu/g in contaminated soils. The isolated bacteria were identified as Bacillus subtilis, Flavobacterium lutescens, Micrococcus luteus, Corynebacterium variabilis, Pseudomonas fluorescens. The contamination had no significant effect on pH, potassium, sodium, organic carbon and nitrogen content of the soils, while the moisture, calcium, phosphorus and magnesium content of the contaminated soils were significantly different (P < 0.05) compared with the uncontaminated soils. The ability of Bacillus subtilis, Flavobacterium lutescens, Micrococcus luteus, and Pseudomonas fluorescens to utilize the refined petroleum products suggest that these bacteria had potential to bioremediate petroleum contaminated soils.
机译：研究了精炼石油产品污染对耕作农业土壤细菌种群和理化特性的影响。从Ondo州阿库雷市联邦技术大学Obakekere的教学与研究农场获得的土壤样品被各种量的汽油，柴油和煤油污染。结果表明，未污染土壤中的细菌种群要高于污染土壤。在未污染的土壤中细菌的数量范围为3.0×105至5.0×105 cfu / g，在受污染的土壤中细菌的数量为1.0×105至3.0×105 cfu / g。分离出的细菌被鉴定为枯草芽孢杆菌，黄杆菌，黄微球菌，变异棒状杆菌，荧光假单胞菌。污染对土壤的pH，钾，钠，有机碳和氮含量无显着影响，与未污染的土壤相比，污染土壤的水分，钙，磷和镁含量差异显着（P <0.05）。枯草芽孢杆菌，黄杆菌，微球菌和荧光假单胞菌利用精炼石油产品的能力表明，这些细菌具有生物修复被石油污染的土壤的潜力。

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