Biodegradation of phenol by Synechocystis sp. in media including triacontanol hormone

Phenol removal levels of Synechocystis sp. were investigated in BG11 media with 10 mg/L triacontanol (TRIA) and without it to test whether the hormone could increase the removal efficiency by increasing biomass. The assays were performed to determine the effect of light on degradation, in media with...

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Bibliographic Details
Published in:Water and environment journal : WEJ 2012-03, Vol.26 (1), p.94-99
Main Authors: Kιlιç, Nur Koçberber, Karacakaya, Pιnar, Duygu, Ergin, Dönmez, Gönül
Format: Article
Language:English
Subjects:
biodegradation
phenol
Synechocystis
Synechocystis sp
triacontanol
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Summary:Phenol removal levels of Synechocystis sp. were investigated in BG11 media with 10 mg/L triacontanol (TRIA) and without it to test whether the hormone could increase the removal efficiency by increasing biomass. The assays were performed to determine the effect of light on degradation, in media with 119.0–492.8 mg/L phenol under light and dark conditions. At increasing phenol concentrations, the degradation ranged between 98.5 and 100% regardless of a dark or a light condition. Experiments were carried out under light to determine the optimum pH for effective degradation. Optimum pH was found to be 6.5 at 200 mg/L phenol with or without TRIA. Phenol degradation was investigated in the 120.2–826.9 mg/L range. Although 377.4 mg/L phenol was completely degraded in hormone controls within 120 h, degradation was increased by TRIA, and the process was completed in 96 h. These data suggest that Synechocystis sp. has potential for use in the treatment of wastewaters containing phenol.
ISSN:1747-6585
1747-6593
DOI:10.1111/j.1747-6593.2011.00267.x