Biogasification products of water hyacinth wastewater reclamation
This paper describes the results of research in progress to evaluate the use of water hyacinth for wastewater treatment and subsequent conversion of hyacinth and sludge to methane by anaerobic digestion. Laboratory studies have been directed toward evaluating advanced biogasification concepts and establishing a data base for the design and operation of an experimental test unit (ETU) located at the water hyacinth wastewater treatment facility at Walt Disney World (WDW) located in Kissimmee, Florida. Laboratory-scale kinetic experiments have been conducted using continuously-stirred tank reactors (CSTR) and a novel non-mixed upflow solids reactor (USR) receiving a hyacinth/sludge blend at retention times of 15 down to 2.1 days. The data suggest that best performance is achieved in the USR which has longer solids and organism retention. A larger-scale ETU (160 cu ft) was designed and installed at WDW in 1983 and started up in 1984. The purpose of this unit is to validate laboratory experiments and to evaluate larger-scale equipment used for chopping, slurry preparation, mixing, and effluent dewatering. The ETU includes a front end designed for multiple feed processing and storage, a fully instrumented USR digester, and tanks for effluent and gas storage. The ETU is currently being operated on a 2:1 blend (dry wt basis) of water hyacinth and primary sludge. Performance is good without major operational problems. Results of laboratory studies and start-up and operation of the ETU will be presented. 7 references, 4 figures, 1 table.
- Research Organization:
- Institute of Gas Technology, Chicago, IL (USA); Gas Research Inst., Chicago, IL (USA)
- OSTI ID:
- 6249430
- Report Number(s):
- CONF-841194-1; ON: DE85005068
- Country of Publication:
- United States
- Language:
- English
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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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ALKANES
ANAEROBIC DIGESTION
AQUATIC ORGANISMS
BIOCONVERSION
BIOMASS CONVERSION PLANTS
DIGESTION
EVALUATION
FEDERAL REGION IV
FLORIDA
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
METHANE
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE
PLANTS
PROCESSING
PRODUCTION
SEWAGE
SEWAGE SLUDGE
SLUDGES
USA
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER HYACINTHS
WATER TREATMENT
WATER TREATMENT PLANTS