The phage-driven microbial loop in petroleum bioremediation

Summary During the drilling process and transport of crude oil, water mixes with the petroleum. At oil terminals, the water settles to the bottom of storage tanks. This drainage water is contaminated with emulsified oil and water‐soluble hydrocarbons and must be treated before it can be released int...

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Bibliographic Details
Published in:	Microbial biotechnology Vol. 3; no. 4; pp. 467 - 472
Main Authors:	Rosenberg, Eugene, Bittan-Banin, Gili, Sharon, Gil, Shon, Avital, Hershko, Galit, Levy, Itzik, Ron, Eliora Z.
Format:	Journal Article
Language:	English
Published:	Oxford, UK Blackwell Publishing Ltd 01-07-2010 John Wiley & Sons, Inc
Subjects:	Ammonia Ammonia - metabolism Bacteria Bacteria - metabolism Bacteria - virology Bacterial Load Bacteriophages - growth & development Biodegradation, Environmental Bioreactors Bioremediation Carbon - metabolism Carbon dioxide Carbon Dioxide - metabolism Cloning Continuous flow Crude oil Deoxyribonucleic acid DNA Drainage Drainage water Drilling Food chains Genes Gold Microorganisms Mineralization Oil pollution Organic carbon Organic Chemicals - metabolism Petroleum Petroleum - metabolism Phages Reactors Sedimentation tanks Storage tanks Sulfide Sulfides - metabolism Total organic carbon Transport buildings, stations and terminals Viral Load VOCs Volatile organic compounds Water pollution Water Purification Water tanks Water treatment
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Summary:	Summary During the drilling process and transport of crude oil, water mixes with the petroleum. At oil terminals, the water settles to the bottom of storage tanks. This drainage water is contaminated with emulsified oil and water‐soluble hydrocarbons and must be treated before it can be released into the environment. In this study, we tested the efficiency of a continuous flow, two‐stage bioreactor for treating drainage water from an Israeli oil terminal. The bioreactor removed all of the ammonia, 93% of the sulfide and converted 90% of the total organic carbon (TOC) into carbon dioxide. SYBR Gold staining indicated that reactor 1 contained 1.7 × 108 bacteria and 3.7 × 108 phages per millilitre, and reactor 2 contained 1.3 × 108 bacteria and 1.7 × 109 phages per millilitre. The unexpectedly high mineralization of TOC and high concentration of phage in reactor 2 support the concept of a phage‐driven microbial loop in the bioremediation of the drainage water. In general, application of this concept in bioremediation of contaminated water has the potential to increase the efficiency of processes.
Bibliography:	istex:BA3DDC8C8E86EAF75F9E8102E10E443DCCB716BB ark:/67375/WNG-9P2FFFGS-N ArticleID:MBT182
ISSN:	1751-7915 1751-7915
DOI:	10.1111/j.1751-7915.2010.00182.x