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The phage-driven microbial loop in petroleum bioremediation.

Eugene Rosenberg¹, Gili Bittan-Banin, Gil Sharon

¹Department of Molecular Microbiology & Biotechnology, Tel Aviv University, Ramat Aviv, Israel. eros@post.tau.ac.il

Microbial Biotechnology

|January 25, 2011

Summary

This study shows a two-stage bioreactor effectively treats oil terminal drainage water. High phage concentrations suggest a phage-driven microbial loop enhances bioremediation efficiency for contaminated water.

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Area of Science:

Environmental Science
Microbiology
Biotechnology

Background:

Crude oil transport and processing generate contaminated drainage water.
This water contains emulsified oil and water-soluble hydrocarbons, requiring treatment before environmental release.

Purpose of the Study:

To evaluate a continuous flow, two-stage bioreactor for treating oil terminal drainage water.
To investigate the microbial community and the role of phages in the bioremediation process.

Main Methods:

Utilized a continuous flow, two-stage bioreactor system.
Analyzed water for ammonia, sulfide, and total organic carbon (TOC) removal.
Quantified bacterial and phage populations using SYBR Gold staining.

Main Results:

The bioreactor achieved complete ammonia removal and 93% sulfide removal.
90% of total organic carbon (TOC) was converted to carbon dioxide.
Reactor 2 exhibited a high concentration of phages (1.7 × 10^9/mL), supporting a phage-driven microbial loop.

Conclusions:

The two-stage bioreactor is highly efficient in treating contaminated oil drainage water.
Phage-driven microbial loops show potential for enhancing bioremediation efficiency.
This approach offers a promising strategy for treating contaminated water in the oil industry.