Methane production from ozonated pulp mill effluent

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1980.00472425000900030017x· OSTI ID:5142091

Bremmon, C E; Jurgensen, M F; Patton, J T

A study was made of the production of methane from desugared spent sulfite liquor (SSL) reacted with ozone. The ozonated SSL was fed continuously to three anaerobic fermenters for three months as the sole source of carbon and energy. The fermenters were inoculated with anaerobic bacteria obtained from sewage sludge and acclimated for 1 month in ozonated SSL prior to continuous fermentation. Chemical and biological parameters such as COD, BOD, total sulfur content, redox potential, pH, fatty acid composition, and methane bacteria populations were monitored to determine changes in the SSL during fermentation. Methane production from ozone-treated SSL averaged 1.7 liters/ liter or 17 ml of CH/sub 4/ produced/gram of volatile solids fed. Fatty acis analysis of fermenter effluent indicated a net production of 58 mM/ liter of acetate during ozonated SSL fermentation. This acetic acid production shows future potential for further fermentation by protein-producing yeast. Although the rate of conversion of volatile solids to CH/sub 4/ in this process was not competitive with domestic or agricultural waste digesters, this study did indicate the potential benefits of ozonating organic wastes for increased methane fermentation yields.

• Research Organization: Michigan Tech. Univ., Houghton, MI
• OSTI ID: 5142091
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 9:3; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
ALKANES
ANAEROBIC CONDITIONS
ANAEROBIC DIGESTION
BACTERIA
BIOCONVERSION
BIOSYNTHESIS
CHEMICAL COMPOSITION
CHEMICAL OXYGEN DEMAND
CRYOGENIC FLUIDS
DIGESTION
ELEMENTS
FERMENTATION
FLUIDS
HYDROCARBONS
INDUSTRY
MANAGEMENT
METHANE
MICROORGANISMS
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
OZONE
PH VALUE
PROCESSING
SOLID WASTES
SULFITES
SULFUR
SULFUR COMPOUNDS
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WOOD PRODUCTS INDUSTRY
WOOD WASTES