Application of intact algae to the biophotolysis

Conference · Fri Jan 01 04:00:00 EST 1982 · Biotechnol. Bioeng. Symp.; (United States)

OSTI ID:6011005

Greenbaum, E

The utilization of intact algae for the simultaneous light-activated production of molecular hydrogen and oxygen is discussed. Experimental data on the long-term stability and endurance of hydrogen and oxygen photoproduction by anaerobically adapted Chlamydomonas reinhardtii is presented. The general conclusion that can be derived from this work is that Chlamydomonas (and probably other microscopic eukaryotic algae) are extremely rugged organisms with respect to the biophotolysis problem. Working with a sample of wild-type Chlamydomonas reinhardtii, the simultaneous photoproduction of hydrogen and oxygen was observed for approximately 100 h. The bleached algae were then removed from the reactor and used as the inoculum in fresh growth medium. These second-generation cells regreened and were able to photoproduce hydrogen and oxygen initially at ten times the rate of the first generation cells and had better survivability characteristics as indicated by their chlorophyll content after 200 h. 2 figures.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 6011005
• Report Number(s): CONF-820580-
• Conference Information: Journal Name: Biotechnol. Bioeng. Symp.; (United States) Journal Volume: 12
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080106* -- Hydrogen-- Production-- Biosynthesis & Photochemical Processes
14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALGAE
BASIC INTERACTIONS
BIOCONVERSION
BIOPHOTOLYSIS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLAMYDOMONAS
DECOMPOSITION
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INTERACTIONS
MICROORGANISMS
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PARTICLE PRODUCTION
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHOTOPRODUCTION
PLANTS
UNICELLULAR ALGAE
WATER
YIELDS