A novel technology for quick acclimation of an anaerobic microbial consortia used for biodegrading teraphthalic acid(TA)

Article type: Research Article

Authors: Li, Xiao-ming | Zeng, Guang-ming | Chen, Jian | Lun, Shi-yi

Affiliations: Department of Environmental Science and Engineering, Hunan University, Changsha 410082, China. E-mail: [email protected] | School of Biotechnology, Wuxi University of Light Industry, Wuxi 214036, China

Note: [] Corresponding author

Abstract: The seed sludge originated from a methane fermentation reactor was enriched and acclimated with TA as sole carbon source under nitrate respiration mode first for 6 week, and then can be turned to methane fermentation conditions. After 6 weeks processing, the specific rate acclimation. After a total of 90 days for the enrichment and acclimation, the fermentative bacteria which originally existed in the seed sludge nearly disappeared, and instead of them, the TA reductive and cleaving bacteria group was formed in the new consortia, which was confirmed by the MPN counts and roll tube counts. Compared with the control experiment, the acclimation period can be shortened by about 50%.

Keywords: acclimation, anaerobic sludge, enrichment, nitrate, terephthalic acid (TA)

Journal: Journal of Environmental Sciences, vol. 14, no. 2, pp. 204-209, 2002