烃类氧化微生物混合培养对多芳烃混合物的氧化作用

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Eurasian Chemico-Technological Journal Pub Date : 2021-03-25 DOI:10.18321/ECTJ1034

D. Filatov, M. Kopytov, V. S. Ovsyannikova, E. El’chaninova

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引用次数: 0

摘要

研究了多芳烃氧化微生物(HOM)在液体培养基和土壤中混合培养对多芳烃混合物(PAHs)进行生化氧化的可能性。混合HOM培养以stutzeri假单胞菌、putida假单胞菌、蜡样芽孢杆菌和球状节杆菌属为代表。结果表明，在所研究的微生物在液体培养基中的HOM培养过程中，其数量从0.25·104增加到11·108 CFU/ml，并伴有加氧酶活性的增加。所有被鉴定的多环芳烃都经历了11.3到100%的氧化。自然条件下多环芳烃生物降解试验结果表明，60 d内油品在土壤中的总利用率平均为初始污染的65%。这表明正在研究的混合HOM培养在有效生物降解污染土壤和废水中的多环芳烃方面具有广阔的前景。

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Oxidation of a Mixture of Polyaromatic Hydrocarbons by a Mixed Culture of Hydrocarbon-Oxidizing Microorganisms

The possibility of biochemical oxidation of polyaromatic hydrocarbon mixtures (PAHs) by the mixed culture of hydrocarbon-oxidizing microorganisms (HOM) in a liquid medium and soil was investigated. The mixed HOM culture was represented by Pseudomonas stutzeri, Pseudomonas putida, Bacillus cereus, and Arthrobacter globiformis genera. It was shown that during HOM cultivation of the microorganisms under study in the liquid medium their number increases from 0.25·104 to 11·108 CFU/ml, which is accompanied by an increase in their oxygenase activity. All PAHs identified were subjected to oxidation from 11.3 to 100%. The results of experiments on biodegradation of PAHs under natural conditions have shown that for 60 days the total utilization of oil products in soils was on the average 65% of the initial contamination. This suggests the prospects for the use of the mixed HOM culture under study for effective biodegradation of PAHs polluting soil and waste waters.

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来源期刊

Eurasian Chemico-Technological Journal CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

20 weeks

期刊介绍： The journal is designed for publication of experimental and theoretical investigation results in the field of chemistry and chemical technology. Among priority fields that emphasized by chemical science are as follows: advanced materials and chemical technologies, current issues of organic synthesis and chemistry of natural compounds, physical chemistry, chemical physics, electro-photo-radiative-plasma chemistry, colloids, nanotechnologies, catalysis and surface-active materials, polymers, biochemistry.