Kinetics of anaerobic biodegradation of resorcinol catechol and hydroquinone in upflow fixed film-fixed bed reactors.
Biodegradation of resorcinol, catechol and hydroquinone under anaerobic conditions was studied in identical upflow fixed film-fixed bed reactors. Kinetic constants; V(max) (maximum substrate utilization rate) and K(s) (Monod's half saturation constant) were determined for the three compounds using Lineweaver-Burk plot. V(max) for resorcinol was highest, followed by catechol and then by hydroquinone. When both resorcinol and catechol were fed to the resorcinol-acclimated reactor, resorcinol degradation was inhibited by catechol. The inhibition was of the uncompetitive type and V(max) for resorcinol was reduced by catechol.
Latkar
M
M
Visvesvaraya Regional College of Engineering, 440011, Nagpur, India.
Swaminathan
K
K
Chakrabarti
T
T
D000975:Antioxidants / Q000378:metabolism*; D001421:Bacteria, Anaerobic / Q000502:physiology*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002396:Catechols / Q000378:metabolism*; D006873:Hydroquinones / Q000378:metabolism*; D007700:Kinetics; D012118:Resorcinols / Q000378:metabolism*; D012388:Root Canal Irrigants / Q000378:metabolism*
D000975:Antioxidants; D002396:Catechols; D006873:Hydroquinones; D012118:Resorcinols; D012388:Root Canal Irrigants; C034221:catechol; C031927:hydroquinone; C031389:resorcinol