BIODEGRADATION OF PETROLEUM-HYDROCARBONS UNDER TROPICAL ESTUARINE CONDITIONS

被引：17

作者：

AMUND, OO

IGIRI, CO

机构：

[1] Department of Biological Sciences, University of Lagos, Lagos

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1990年 / 6卷 / 03期

关键词：

D O I：

10.1007/BF01201293

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The physico-chemical parameters of water samples collected from three points in the Lagos lagoon were studied for 12 months. Safinity varied seasonally but the temperature pH, dissolved O2, conductivity, NO3- and HPO42- concentrations were relatively constant. There was a direct proportionality between the population density of hydro-carbon-utilizing bacteria and the oil content of water samples. Twelve hydrocarbon-utilizing bacteria were isolated by selective enrichment and characterized as species of Pseudomonas, Alcaligenes, Acinetobacter and Bacilius. The organisms grew mainly on long-chain aliphatic hydrocarbons. Laboratory and field biodegradation studies showed both quantitative and qualitative changes in the hydrocarbon content of crude oil due to microbial degradative activities and a faster rate of oil depletion from the Lagos lagoon during the rainy season. The results obtained could offer a predictive model for estimating the rate of disappearance of petroleum hydrocarbons from the tropical estuarine environment. © 1990 Rapid Communications of Oxford Ltd.

引用

页码：255 / 262

页数：8

共 15 条

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