A5040450182- Algal biology and biofuel production
- Photosynthetic Processes and Mechanisms
- Metalloenzymes and iron-sulfur proteins
- Aquatic Ecosystems and Phytoplankton Dynamics
- Anaerobic Digestion and Biogas Production
- Biodiesel Production and Applications
- Marine and coastal ecosystems
- Wastewater Treatment and Nitrogen Removal
- Microbial Fuel Cells and Bioremediation
- Biofuel production and bioconversion
- Electrocatalysts for Energy Conversion
- Protist diversity and phylogeny
- Water Quality Monitoring and Analysis
- Chemical Reactions and Isotopes
- Constructed Wetlands for Wastewater Treatment
- Chromium effects and bioremediation
- Ammonia Synthesis and Nitrogen Reduction
- Light effects on plants
- Catalytic Processes in Materials Science
- Microbial Community Ecology and Physiology
- Hybrid Renewable Energy Systems
- Heavy metals in environment
- Biocrusts and Microbial Ecology
- Bioenergy crop production and management
- Legume Nitrogen Fixing Symbiosis
MicroBio Engineering (United States)
2011-2024
Short and Associates (United States)
2020
Clemson University
2009
California Polytechnic State University
2009
Institute for Environmental Management
2009
University of California, Berkeley
1981-2007
University of California System
2007
Kaiser Permanente Walnut Creek Medical Center
1996-2003
Gas Technology Institute
1993
Orthopaedic Center of Vero Beach
1993
Photobioreactor design and operation are discussed in terms of mixing, carbon utilization, the accumulation photosynthetically produced oxygen. The open raceway pond is primary type reactor considered; however small diameter (1-5 cm) horizontal glass tubular reactors compared to ponds several respects. These representative diversity photobioreactor design: low capital cost, systems high closed systems. Two 100-m(2) raceways were operated provide input data validate analytical results. With a...
The potential of microalgae biomass production for low-cost commodities—biofuels and animal feeds—using sunlight CO2 is reviewed. Microalgae are currently cultivated in relatively small-scale systems, mainly high value human nutritional products. For commodities, costs must be decreased by an order magnitude, productivity algal strains developed that can stably large open ponds harvested processes. feeds, the digestible protein long-chain omega-3 fatty acids substitute fish meal oils....
Nitrogen fixation, measured by the reduction of acetylene to ethylene, was found in workers dry-wood termite Kalotermes minor. The soldiers and reproductive castes fixed little or no nitrogen. fixation rates ranged between 24 566 micrograms nitrogen per month gram (wet weight) termite. can be a significant source for these termites.
This paper examines the potential of algae biofuel production in conjunction with wastewater treatment. Current technology for algal treatment uses facultative ponds, however, these ponds have low productivity (∼10 tonnes/ha.y), are not amenable to cultivating single species, require chemical flocculation or other expensive processes harvest, and do provide consistent nutrient removal. Shallow, paddlewheel-mixed high rate (HRAPs) much higher productivities (∼30 tonnes/ha.y) promote...
Microalgal biomass production offers a number of advantages over conventional production, including higher productivities, use otherwise nonproductive land, reuse and recovery waste nutrients, saline or brackish waters, CO2 from power-plant flue gas similar sources. utilization potential for greenhouse (GHG) avoidance by providing biofuel replacement fossil fuels carbon-neutral animal feeds. This paper presents an initial analysis the GHG using proposed algal system coupled to flue-gas...
Spinach chloroplast preparations were mixed with Clostridium kluyveri hydrogenase and ferredoxin. Hydrogen evolution could be measured in the light absence of any added electron donors. Inhibition water-splitting reaction or photosystem II reduced amount H(2) evolved more than 95%, indicating that H(2)O was donor this reaction. The rates observed up to 20% those presence an oxygen-consuming I These findings indicate hydrogen from water sunlight by photosynthetic processes a method for solar...
Actively growing, nitrogen-fixing cultures of the blue-green alga Anabaena cylindrica can simultaneously evolve hydrogen and oxygen frolni water light. Hydrogen evolution was strongly inhibited by N(2) but only slightly CO or O(2), characteristics nitrogenase reaction in heterocysts cylindrica. We suggest that this has potential use solar energy conversion.
Nitrogen-starved cultures of the alga Anabaena cylindrica 629 produced hydrogen and oxygen continuously for 7 to 19 days. Hydrogen production attained a maximum level after 1 2 days starvation was followed by slow decline. The rates were 30 ml H2 evolved per liter culture h or 32 mul mg dry weight h. In 5 rate evolution more productive fell one-half its value. addition 10(-4) X M ammonium increased total cultures. H2-O2 ratios 4:1 under conditions complete nitrogen about 1.7:1 ammonium....