Thesis On Microalgae

Thesis On Microalgae-4
The de-oiled cake and in-situ cake were torrefied (slow pyrolysis) to convert the residue into a high energy density solid bio-char, which can be used as a feedstock to produce heat energy.Microalgae can be used as a source of biofuel and food supplements, however, their exploitation is lacking due to various bottlenecks including realistic processing options at scale.

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The hydraulic pressing (10-100 bars) with and without LN2 treatment was also found with promising results with more than 90 % cell disruption.

The extracted algal lipids physical and chemical properties were found in an agreement with previous workers.

Oil extraction from the feedstock is one of the most energy intensive parts of the process in the production chain.

Oil extraction methods are influenced by the operational physical parameters or chemical characteristics, and their selection greatly impacts the final oil yields.

The extracted oil fatty acid profile showed favourable properties to convert the oil into biodiesel.

In-situ transesterification of flaxseed was conducted and 93 % was converted into biodiesel.

The microwave treatment was found the most energy efficient method with a higher percentage of cell disruption as compared the other treatments.

The microwave treatment, was chosen to enhance the lipid extraction with an organic solvent extraction from dry powdered and wet algal paste.

From this work, there is clearly significant benefit to using advanced processes for oil extraction such as HTL or microwave enhanced processing.

Compared to other parts of the extraction process, such as energy used for drying, the use of a microwave has been shown to be economically viable.

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  • Bioactivity and Applications of Sulphated Polysaccharides from Marine.
    Reply

    Marine microalgae have been used for a long time as food for humans, such as Arthrospira formerly, Spirulina, and for animals in biomass of these microalgae and the compounds they produce have been shown to possess several biological applications with numerous health benefits.…

  • Dry Weight and Cell Density of Individual Algal and Cyanobacterial.
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    A Thesis presented to. Microalgae and cyanobacteria are the only known organisms that are capable of both oxygenic photosynthesis and hydrogen production. Thus.…

  • Hydrothermal processing of microalgae - White Rose eTheses Online
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    Microalgae contain large amounts of lipids and have faster growth rates than terrestrial biomass. One of the current technological bottlenecks of biofuels conversion is the economic extraction and processing of microalgae components. Due to their aquatic nature microalgae contain large amounts of water when harvested.…

  • EVALUATING ALGAL GROWTH AT DIFFERENT TEMPERATURES - University of Kentucky
    Reply

    EVALUATING ALGAL GROWTH AT DIFFERENT TEMPERATURES Keelin Owen Cassidy University of Kentucky, [email protected] click to open a feedback form in a new tab to let us know how this document benefits you. This Master's Thesis is brought to you for free and open access by the Biosystems and Agricultural Engineering at UKnowledge.…

  • Final Degree Project
    Reply

    The use of microalgae as a source of biofuels is an attractive proposition from the point of view that microalgae are photosynthetic renewable resources. They produce oils with high lipid content, have fast growth rates and are capable of growth in saline waters which are unsuitable for agriculture.…

  • Microalgae An Alternative Source of Renewable Energy
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    Microalgae An Alternative Source of Renewable Energy A. Z. A. Saifullah, Md. Abdul Karim, Aznijar Ahmad-Yazid Department of Mechanical Engineering, IUBAT – International University of Business Agriculture and Technology, Dhaka 1230, Bangladesh Department of Mechanical Engineering, IUBAT – International University of Business Agriculture and…

  • AN INVESTIGATION ON THE CO- PRODUCTION OF BIODIESEL AND METHANE FROM.
    Reply

    This work presented in this thesis could provide a basis for further research in the areas of biodiesel production from microalgae using the in-situ process and methane production from the microalgae residues, post transesterification. Parts of this thesis have been published in academic peer reviewed journals and…

  • PDF Algae Biotechnology -
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    PDF Algae are chlorophyll-containing photosynthetic organisms found everywhere on the earth, such as in the sea, rivers, lakes, soil, in animal, and plants. Algae represent a potential biomass.…

  • Mathilde Andersson - Lund University
    Reply

    Food vs fuel. Algae-based biofuels refer to those produced from microalgae biomass. Microalgae –those focused upon in this review- are the oldest living micro-organisms on earth. The real value of microalgae lies in their oil content and the possibility to convert it into biodiesel.…

  • CHARACTERIZING MICROALGAE Nannochloris oculata HARVESTING BY ALUMINUM.
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    Conductivity. This thesis reviews challenges of harvesting and concentration of green microalgae and examines the effect of pH, flocculant dosage, and culture conductivity on charge neutralization and flocculation of Nannochloris oculata by aluminum chloride.…

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