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Related Concept Videos

Biofuels01:25

Biofuels

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The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
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Coagulation01:06

Coagulation

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Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
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Overview of Algae01:28

Overview of Algae

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The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
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Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
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[Harvesting microalgae via flocculation: a review].

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    Microalgae harvesting for valuable products like biofuels faces cost barriers. Flocculation, particularly bio-flocculation, offers an eco-friendly and cost-effective solution for efficient microalgae biomass collection.

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    Area of Science:

    • Biotechnology
    • Renewable Energy
    • Biorefinery

    Background:

    • Microalgae are valuable sources for polyunsaturated fatty acids, pigments, and biofuels.
    • High costs associated with microalgae biomass harvesting hinder industrial applications.
    • Flocculation presents a low-cost, operationally simple alternative to other harvesting methods.

    Purpose of the Study:

    • To review microalgae harvesting methods, focusing on flocculation techniques.
    • To highlight the progress and future prospects of bio-flocculation.
    • To assess the efficiency and cost-effectiveness of various flocculation strategies.

    Main Methods:

    • Review of chemical, physical, and biological flocculation methods for microalgae harvesting.
    • Emphasis on bio-flocculation strategies, including the use of bio-flocculants and self-flocculating microalgal strains.
    • Analysis of existing literature on microalgae harvesting efficiency and cost.

    Main Results:

    • Flocculation is a cost-effective and efficient method for microalgae harvesting.
    • Bio-flocculation, utilizing bio-flocculants or self-flocculating strains, is particularly promising.
    • This method addresses the economic challenges in microalgae industrialization.

    Conclusions:

    • Bio-flocculation is an eco-friendly, cost-effective, and efficient approach for microalgae harvesting.
    • Further development in bio-flocculation can significantly advance the microalgae biorefinery industry.
    • Sustainable harvesting is key to unlocking the full potential of microalgae for various applications.