Isolation of a Thermotolerant Photosynthetic Bacterium, Rhodobacter sphaeroides Strain, NAT, and Its Capacity for Oil and Chemical Oxygen Demand Removal at High Temperatures

Yosuke YAMAOKA; Kenji TAKENO; Hidenori SHINKAWA; Napavarn NOPARATNARAPORN; Ken SASAKI

doi:10.1271/bbb.70780

This article has now been updated. Please use the final version.

Isolation of a Thermotolerant Photosynthetic Bacterium, Rhodobacter sphaeroides Strain, NAT, and Its Capacity for Oil and Chemical Oxygen Demand Removal at High Temperatures

Yosuke YAMAOKA, Kenji TAKENO, Hidenori SHINKAWA, Napavarn NOPARATNARAPORN, Ken SASAKI

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Keywords: artificial sewage wastewater, oil treatment, photosynthetic bacteria, Rhodobacter, thermotolerant

JOURNAL FREE ACCESS Advance online publication

Article ID: 70780

DOI https://doi.org/10.1271/bbb.70780

The final version of this article is now available: Vol. 72 (2008) , No. 6 p.1601

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Abstract

A thermotolerant photosynthetic bacterium NAT identified as Rhodobacter sphaeroides was isolated. When alginate-immobilized cells of strain NAT were used in high-temperature treatment of artificial sewage wastewater containing oil, the chemical oxygen demand (COD) decreased by 80% and 76% of the oil was removed after 96 h of treatment at 55 °C. Lipase activity was observed in the culture.

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