Co-degradation of phenol and m-cresol by upflow anaerobic sludge blanket reactor

Farooqi, I.H. and Basheer, F. and Isa, M.H. (2007) Co-degradation of phenol and m-cresol by upflow anaerobic sludge blanket reactor. In: WaterMalaysia 2007, The Malaysian Water Association, Kuala Lumpur, Malaysia, May, 2007, Kuala Lumpur, Malaysia.

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The study was performed to assess the efficacy of an upflow anaerobic sludge blanket reactor for the degradation of mixtures of phenol and m-cresol. The experiments were performed in an upflow anaerobic sludge blanket reactor. The reactor was seeded with digested sewage sludge and was initially operated at 24 HRT. A phenol concentration of 200mg/L was fed to the reactor to acclimatize the microorganisms to phenols. Subsequently the dosages of phenols were increased to 400mg/L, 500mg/L, and 600mg/L. Cresols were introduced in the reactor when phenol removal efficiency of 77% was achieved at phenol concentration of 600mg/L. Different phenol to m-cresol ratios were tried and the performance of the reactor was evaluated for each case. The result demonstrates that it is important to consider phenol/ m-cresol ratio to avoid toxic effects and both can be co-degraded successfully under anaerobic conditions provided proper acclimatization time is given.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Anaerobic processes; biodegradation; m-cresol; phenol; UASB reactor
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Academic Subject Three:petroleum engineering, geosciences
Departments / MOR / COE:Departments > Civil Engineering
ID Code:1538
Deposited By: Assoc Prof Dr Mohamed Hasnain Isa
Deposited On:23 Apr 2010 02:19
Last Modified:20 Mar 2017 01:57

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