Effect of chemical pretreatment on anaerobic biodegradation of refractory organic compounds

Journal Article · Sat Aug 01 00:00:00 EDT 1992 · Environmental Progress; (United States)

DOI:https://doi.org/10.1002/ep.670110315· OSTI ID:6835155

Wang, Y T ^[1]

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1. Univ. of Kentucky, Lexington, KY (United States)

The potential for using chemical oxidation to enhance anaerobic biodegradability and reduce toxicity of two model phenolic compounds (o-cresol and 2,4-DNP) was evaluated. Batch bioassays were performed on the model compounds and their oxidation samples to determine biodegradability and toxicity in batch methanogenic cultures. Ozone, hydrogen peroxide, and potassium permanganate were the three oxidants examined in this study. A dose of approximately 5 moles hydrogen peroxide, in the presence of a ferrous iron catalyst (Fenton's reagent), 7 moles permanganate, or 25 moles of ozone per mole of o-cresol was needed to significantly enhance anaerobic biodegradability of oxidation samples. Approximately 2.5-4.5 moles of hydrogen peroxide or 7 moles of ozone per mole of 2,4-DNP reduced methanogenic toxicity by 50%. 25 refs., 6 figs., 3 tabs.

• OSTI ID: 6835155
• Journal Information: Environmental Progress; (United States), Vol. 11:3; ISSN 0278-4491
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES
METHANOGENIC BACTERIA
BIOLOGICAL PATHWAYS
PHENOLS
ANAEROBIC DIGESTION
BIODEGRADATION
CATALYTIC EFFECTS
CRESOLS
DINITROPHENOL
IRON
AROMATICS
BACTERIA
BIOCONVERSION
CHEMICAL REACTIONS
DECOMPOSITION
DIGESTION
ELEMENTS
HYDROXY COMPOUNDS
MANAGEMENT
METALS
MICROORGANISMS
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROCESSING
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
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