Anaerobic digestion process

Patent · Tue Oct 19 00:00:00 EDT 1982

OSTI ID:6526618

Ishida, M; Haga, R; Odawara, Y

An algae culture grown on the water from the digested slurry of a biogasification plant serves as a means of removing CO/sub 2/ from the methane stream while purifying the wastewater and providing more biomass for the anaerobic digestion plant. Tested on a sewage-sludge digestion system, the proposed process improved the methane yield by 32% and methane concentration by 53-98 vol % while lowering the concentration of nitrogen and phosphorus in the final water.

• Assignee: Agency of Industrial Science and Tech., Japan
• Patent Number(s): US 4354936
• OSTI ID: 6526618
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
10 SYNTHETIC FUELS
BIOMASS
ANAEROBIC DIGESTION
METHANE
BIOSYNTHESIS
ALGAE
BIOGAS PROCESS
CARBON DIOXIDE
PRODUCTION
SEWAGE SLUDGE
WASTE PROCESSING PLANTS
WASTE WATER
ALKANES
BIOCONVERSION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DIGESTION
ENERGY SOURCES
HYDROCARBONS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLANTS
PROCESSING
RENEWABLE ENERGY SOURCES
SEWAGE
SLUDGES
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
140504* - Solar Energy Conversion- Biomass Production & Conversion- (-1989)
090100 - Hydrocarbon Fuels- (-1989)