Solubilization of particulate organic carbon during the acid phase of anaerobic digestion

Journal Article · Thu Jan 01 04:00:00 EST 1981 · J. - Water Pollut. Control Fed.; (United States)

OSTI ID:7152148

Eastman, J A; Ferguson, J F

Hydrolysis of particulates to soluble substrates rather than bacterial growth was the rate-limiting step during the acid phase of anaerobic digestion of sewage sludge, and pH had a greater effect on the process than did influent solids concentrations, suggesting that digestability can be improved for highly variable feed sludges by separate phase digestion for acid production and CH/sub 4/ production. Carbohydrates were more readily degraded than nitrogenous materials, and lipids remained unaffected. A model of the acid phase of digestion is formulated.

• Research Organization: Dept. Civil Sanit, Eng., Michigan State Univ., East Lansing, MI USA
• OSTI ID: 7152148
• Journal Information: J. - Water Pollut. Control Fed.; (United States), Journal Name: J. - Water Pollut. Control Fed.; (United States) Vol. 53:3; ISSN JWPFA
• Country of Publication: United States
• Language: English

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59 BASIC BIOLOGICAL SCIENCES
ALKANES
ANAEROBIC DIGESTION
BIOCHEMICAL REACTION KINETICS
BIOCONVERSION
BIODEGRADATION
BIOLOGICAL MODELS
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
DIGESTION
HYDROCARBONS
HYDROLYSIS
INHIBITION
KINETICS
LIPIDS
LYSIS
MANAGEMENT
METHANE
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PH VALUE
PROCESSING
PRODUCTION
REACTION KINETICS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOLUBILITY
SOLVOLYSIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES