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2 edition of Research, development, and demonstration of algal production raceway (APR) systems for the production of hydrocarbon resources found in the catalog.

Research, development, and demonstration of algal production raceway (APR) systems for the production of hydrocarbon resources

Edward A. Laws

Research, development, and demonstration of algal production raceway (APR) systems for the production of hydrocarbon resources

a subcontract report

by Edward A. Laws

  • 328 Want to read
  • 19 Currently reading

Published by Prepared for the U.S. Dept. of Energy by Solar Energy Research Institute, available from NTIS in Golden, Colo, Springfield, Va .
Written in English

    Subjects:
  • Algae -- Growth.,
  • Algae -- Physiology.,
  • Photosynthesis.,
  • Biomass energy.

  • Edition Notes

    StatementEdward A. Laws.
    ContributionsUnited States. Dept. of Energy.
    The Physical Object
    Paginationix, 49 p. :
    Number of Pages49
    ID Numbers
    Open LibraryOL15080755M

    macroalgae at sea for biofuel production in the United States and other countries. There are no large operational macroalgae farms for biofuel production, although tests were made at sea during the s off California (ARPA-E ). Although still in the early research and development stage, it is clear that. Microalgae oil production is the subject of intensive worldwide research and development, with several billion dollars invested in the past few years. Many different approaches and technologies are being investigated: (1) growing microalgae on sunlight and CO 2 in enclosed photobioreactors (tubes, bags, panels, etc.) or open ponds;.

      Novel satellite based analytical model developed to predict microalgae yields in open pond raceway systems and applied to Canadian sites. Algal Research , 39, DOI: / Pooya Darvehei, Parisa A. Bahri, Navid R. Moheimani. Model development for the growth of microalgae: A review. The EBI scientists conclude that "algal oil production will be neither quick nor plentiful - 10 years is a reasonable projection for the R, D & D (research, development and demonstration) to allow.

    While temperature is fundamental to the design and optimal operation of shallow algal ponds, there is currently no temperature model universally applicable to these systems. This paper presents a model valid for any opaque water body of uniform temperature profile. This new universal model was tested against 1 year of experimental data collected from a wastewater treatment high rate algal pond. Microalgal biomass is a renewable, carbon-neutral resource and an excellent alternative to petroleum-footed fuels. In this work the open outdoor raceway pond system was used for the cultivation of Chlorella vulgaris. The biomass productivity was mg L-1d-1 and lipid content 25±5% when cultivated in low cost medium (Urea, Superphosphate and Potash at , and mg L-1 where the pH.


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Research, development, and demonstration of algal production raceway (APR) systems for the production of hydrocarbon resources by Edward A. Laws Download PDF EPUB FB2

Get This Book. Visit to get more information about this book, National Research Council. Sustainable Development of Algal Biofuels in the United States.

Washington, DC: The National Academies Press. doi: / Research on this problem began at the University of Hawaii under SERI subcontract on Febru under the title "Research, Development, and Demonstration of Algal Production Raceway (APR) Systems for the Production of Hydrocarbon Resources." Work during the fir~t two and one-half years resulted in the collection of a.

Algae after cultivation in open raceway ponds or closed PBRs exist as dilute solution of algae ( g/L). Recovering algae biomass from such dilute solutions poses many challenges, especially for open pond cultivation systems. Therefore, development of efficient processes to recover algae is critical for economic viability of algal biodiesel.

Hectare-scale demonstration of high rate algal ponds for enhanced wastewater treatment and biofuel production of algal biofuel production using open raceway ponds and a closed photo bioreactor. Sapphire Energy, Inc. (SEI) is a leader in large-scale photosynthetic algal biomass production, with a strongly cohesive research, development, and operations program.

SEI takes a multidiscipline approach to integrate lab-based strain selection, cultivation and harvest and production scale, and extraction for the production of Green Crude oil. The simplest method for algae production is the open raceway pond: shallow, circulating, open bodies of water that are exposed to the elements and use the natural energy of the sun [,   Today, most of the large scale algal biomass production facility is based on RWPs and this accounts for nearly 95% of the total worldwide algal example, high value products such as astaxanthin has been produced in raceway ponds of 20, L fact, RWPs use the simplest form of algal y pond was found better compared to circular pond.

With algal biofuels research and development evolving rapidly, we are confident that areas such as technical approach, process scale-up/commercial demonstration, life cycle/sustainability analysis, etc., of algal systems for liquid biofuels production will warrant further.

Read chapter 4 Natural Resource Use: Biofuels made from algae are gaining attention as a domestic source of renewable fuel.

However, with current technolo. these production systems, the algae are cultivated in large (typically – hectares), raceway-type open ponds mixed by paddle wheels. Nutrients, most importantly CO2, are added to the ponds and these filamentous algae are then harvested by fine mesh screens, spray dried and sold as specialty human foods and animal feeds.

The development of cost-competitive algae biofuel production will require much more long-term research, development and demonstration, researchers say. use the raceway, open pond-based algal.

Downloadable (with restrictions). This paper presents the development and analysis of a new airlift-driven raceway reactor configuration for energy-efficient algal cultivation. A theoretical analysis of the energy requirements for traditional paddlewheel-driven raceway reactors and the proposed airlift-driven raceway reactors is presented.

A hydrodynamic model was developed to predict the. Chlamydomonas grown in the Almeria raceways Mark Walker (Research Fellow) building the raceway in Almeria Dr John Benemann cutting the first turf at the Chiclana experimental facility Measuring the growth rate of algae Growing algal starter cultures Growing algal starter cultures Lab scale instrumented photobioreactor Lab scale instrumented photobioreactors litre photobioreactor in the.

The EBI scientists conclude that “algal oil production will be neither quick nor plentiful — 10 years is a reasonable projection for the R, D & D (research, development and demonstration) to allow a conclusion about the ability to achieve, at least for specific locations, relatively low-cost algal biomass and oil production.”.

High rate algal ponds (HRAPs) are shallow, paddlewheel-mixed open raceway ponds that are an efficient and cost-effective upgrade for the conventional wastewater treatment ponds used by communities and farms the world over. HRAPs provide improved natural disinfection and nutrient removal and can be further enhanced by carbon dioxide (CO2) addition to promote algal growth which is often.

Downloadable (with restrictions). Algal technology has potential to combat the global energy crisis, malnutrition, and production of several value added products useful for the mankind.

The cost effective cultivation system is the basis to realize this goal. Microalgal production in raceway ponds seems to be most promising, especially in the large scale. Research on this problem began at the University of Hawaii under SERI subcontract on Febru under the title "Research, Development, and Demonstration of Algal Production Raceway (APR) Systems for the Production of Hydrocarbon Resources." Work during the first two and one-half years resulted in the.

More precisely, the project optimised the production of algae by both heterotrophic and phototrophic routes and demonstrated integration of these production technologies (Raceway, PhotoBioReactor and Fermentation) to achieve the algae cultivation targets of dry tonnes per hectare by : Research Engineer - Algae.

This work focuses on designing the optimum raceway pond by considering the effects of sunlight availability, temperature fluctuations, and harvest time on algae growth, and introduces a dynamic programing model to do so. Culture properties such as biomass productivity, growth rate, and concentration, and physical properties, such as average velocity, pond temperature, and rate of.

Biofuels are the most awaited products of scientific research. The fossil fuels are being exhausted, and pollution is increasing globally. Algal biofuels are one of the promising options. They are wonderful tiny factories that yield a variety of substances that have the property to act as sources of ecofriendly fuels.

More attention has been focused on microalgae-derived biomass for generating. DOI: /s Corpus ID: Hectare-scale demonstration of high rate algal ponds for enhanced wastewater treatment and biofuel production @article{CraggsHectarescaleDO, title={Hectare-scale demonstration of high rate algal ponds for enhanced wastewater treatment and biofuel production}, author={Rupert J.

Craggs and Donna Sutherland and H L Campbell}. AgriLife Research operates an algae research and development facility in Pecos, Texas. The facility provides opportunity for in-depth research and development to evaluate and demonstrate algae production, harvesting techniques, and production systems for improved biomass accumulation and commercialization [email protected]{osti_, title = {Chapter Research and Deployment of Renewable Bioenergy Production from Microalgae}, author = {Laurens, Lieve M and Glasser, Melodie}, abstractNote = {Recent progress towards the implementation of renewable bioenergy production has included microalgae, which have potential to significantly contribute to a viable future bioeconomy.