Biodegradation of Pentachlorophenol in a Continuous Anaerobic Reactor Augmented with Desulfitobacterium frappieri PCP-1†
AUTOR(ES)
Tartakovsky, B.
FONTE
American Society for Microbiology
RESUMO
In this work, a strain of anaerobic pentachlorophenol (PCP) degrader, Desulfitobacterium frappieri PCP-1, was used to augment a mixed bacterial community of an anaerobic upflow sludge bed reactor degrading PCP. To estimate the efficiency of augmentation, the population of PCP-1 in the reactor was enumerated by a competitive PCR technique. The PCP-1 strain appeared to compete well with other microorganisms of the mixed bacterial community, with its population increasing from 106 to 1010 cells/g of volatile suspended solids within a period of 70 days. Proliferation of strain PCP-1 allowed for a substantial increase of the volumetric PCP load from 5 to 80 mg/liter of reaction volume/day. A PCP removal efficiency of 99% and a dechlorination efficiency of not less than 90.5% were observed throughout the experiment, with 3-Cl-phenol and phenol being observable dechlorination intermediates.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=91578Documentos Relacionados
- Microstructure of Anaerobic Granules Bioaugmented with Desulfitobacterium frappieri PCP-1
- Spectrum of the Reductive Dehalogenation Activity of Desulfitobacterium frappieri PCP-1
- Purification, Cloning, and Sequencing of a 3,5-Dichlorophenol Reductive Dehalogenase from Desulfitobacterium frappieri PCP-1
- Desulfitobacterium hafniense Is Present in a High Proportion within the Biofilms of a High-Performance Pentachlorophenol-Degrading, Methanogenic Fixed-Film Reactor
- Contribution to technological research of the microbial studies done at program BIOTA FAPESP: evaluation of anaerobic Pentachlorophenol (PCP) biodegradation in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor
