Organic and inorganic waste treatment and simultaneous photoproduction of hydrogen by immobilized photosynthetic bacteria
Photosynthetic bacterial strains isolated from tropical and subtropical marine environments that have high growth and hydrogen production were selected and immobilized in agar. Immobilization significantly stabilized H/sub 2/ production by preventing the inhibitory effect from O/sub 2/. Immobilized Chromatium sp. removed sulfide from medium effectively and simultaneously produced H/sub 2/. Immobilized Rhodopseudomonas sp., which had wide organic substrate specificity, were also used to treat waste water from an orange-processing plant. Removal of total organic carbon (TOC), near-complete reduction of BOD, and simultaneous H/sub 2/ photoproduction were also demonstrated. Continuous H/sub 2/ photoproduction was carried out for several weeks with periodic addition of waste in indoor artificial light. These experiments were successfully applied in outdoor natural sunlight conditions. These data clearly demonstrated that immobilized selected strains of photosynthetic bacteria can be effectively used simultaneously for waste treatment and clean energy (H/sub 2/) production. 31 references, 6 figures, 1 table.
- Research Organization:
- Univ. of Miami, FL
- OSTI ID:
- 6104677
- Journal Information:
- Dev. Ind. Microbiol.; (United States), Vol. 26
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
59 BASIC BIOLOGICAL SCIENCES
HYDROGEN
PHOTOPRODUCTION
PHOTOSYNTHETIC BACTERIA
IMMOBILIZED CELLS
WASTE WATER
WASTE PROCESSING
BIOCHEMICAL OXYGEN DEMAND
BASIC INTERACTIONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
HYDROGEN COMPOUNDS
INTERACTIONS
LIQUID WASTES
MANAGEMENT
NONMETALS
OXYGEN COMPOUNDS
PARTICLE PRODUCTION
PROCESSING
WASTE MANAGEMENT
WASTES
WATER
080106* - Hydrogen- Production- Biosynthesis & Photochemical Processes
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
550700 - Microbiology