Kinetics and advanced digester design for anaerobic digestion of water hyacinth and primary sludge
A research program centered around a facility located at Walt Disney World (WDW) is in progress to evaluate the use of water hyacinth (WH) for secondary and tertiary wastewater treatment, to optimize growth of WH under these conditions, and to convert the resultant primary sludge (PS) and WH to methane via anaerobic digestion. This article describes the status of the biogasification component of this program, which includes baseline and advanced digestion experiments with individual feeds and blends and the design of an experimental test unit (ETU) to be installed at WDW. Experiments with several blends demonstrated that methane yields can be predicted from the fractional content and methane yield of each component. The process was found to adhere to the Monod kinetic model for microbial growth, and associated kinetic parameters were developed for various feed combinations. A novel upflow digester is achieving significantly higher conversion than a stirred-tank digester. Of several pretreatment techniques used, only alkaline treatment resulted in increased biodegradability. A larger scale (4.5 m/sup 3/) experimental test unit is being designed for installation at WDW in 1982. 13 figures, 4 tables.
- Research Organization:
- Inst. of Gas Tech., Chicago, IL
- OSTI ID:
- 6061148
- Report Number(s):
- CONF-820580-
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Journal Name: Biotechnol. Bioeng. Symp.; (United States) Vol. 12; ISSN BIBSB
- Country of Publication:
- United States
- Language:
- English
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ALKANES
ANAEROBIC DIGESTION
AQUATIC ORGANISMS
BIOCONVERSION
BIOGAS PROCESS
BIOREACTORS
BIOSYNTHESIS
DESIGN
DIGESTION
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
LIQUID WASTES
MANAGEMENT
METHANE
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PLANTS
PROCESSING
SEWAGE
SEWAGE SLUDGE
SLUDGES
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER HYACINTHS