alexa Kinetics of phenol biodegradation in high salt solutions.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Peyton BM, Wilson T, Yonge DR

Abstract Share this page

Abstract Biological treatment of high-salinity industrial wastewaters using halophilic bacteria can be used to remove organic compounds without first decreasing the salt concentration. While halophilic degradation of phenol and other organics has been investigated, there exists a general absence of kinetic data in current literature to allow evaluation of this treatment alternative. Liquid, soil and sediment samples were collected from three distinct saline environments in the western United States. Samples were enriched in media containing 10\% (w/v) NaCl at pH 7.0, with phenol as a substrate. Mixed culture batch experiments were conducted at 30 degrees C with initial phenol concentrations of 50 mg/L. Evaluation of phenol degradation and corresponding cell growth data with Monod and Andrews models indicated that the kinetics were zero-order with respect to phenol. Zero-order specific growth rates ranged from 0.22 to 0.32 h(-1), while observed cell yields were 0.18-0.28 mg cell protein/mg phenol for the five cultures. For one of the cultures, phenol degradation rates were also quantified at concentrations of up to 320 mg/L. Under these conditions, specific growth rates ranged from 0.09 to 0.22 h(-1), decreasing with increasing initial phenol concentrations. Cell yields at these higher initial phenol concentrations ranged from 0.20 to 0.29 mg cell protein/mg phenol.
This article was published in Water Res and referenced in Journal of Bioremediation & Biodegradation

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 6th World Congress on Biofuels and Bioenergy
    Sep 5-6, 2017 London, UK
  • 6th World Congress on Biopolymers
    September 7-9, 2017 Paris, France
  • 7th International Conference and Exhibition on Biopolymers and Bioplastics
    October 19-21, 2017 San Francisco, USA

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords