Leach-bed two-phase digestion: the LanFilgas concept
Conference
·
OSTI ID:6231720
The development of a novel two-phase anaerobic digestion process configuration that is suitable for the production of chemicals or methane or both from high solids-content organic feeds is presented. The process consists of a leach-bed anaerobic bioreactor for solid-phase acid fermentation, a slurry-phase acid digester, and a methane digester; the process is known as the LanFilgas Process, since it was originally conceived to accomplish accelerated gasification of solid-waste landfills. Data presented in this paper showed that methane and volatile fatty acids can be produced in high yields from nutritionally deficient and complex dry organic feeds without the addition of external nutrients or buffering agents; slurrification of the dry feed is not required as in conventional fermentation. The process is expected to be more economical than slurry-phase digestion. 19 refs., 4 figs., 2 tabs.
- Research Organization:
- Institute of Gas Technology, Chicago, IL (USA)
- OSTI ID:
- 6231720
- Report Number(s):
- CONF-850104-9; ON: TI86900907
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ALKANES
ANAEROBIC DIGESTION
BIOCONVERSION
BIOREACTORS
CARBOXYLIC ACIDS
DIGESTION
HYDROCARBONS
MANAGEMENT
METHANE
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
SOLID WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YIELDS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ALKANES
ANAEROBIC DIGESTION
BIOCONVERSION
BIOREACTORS
CARBOXYLIC ACIDS
DIGESTION
HYDROCARBONS
MANAGEMENT
METHANE
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
SOLID WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YIELDS