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Biofuels

Biofuels

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...

Green Algae

Green Algae

Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...

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...

Dehydration of Aldols to Enals: Base-Catalyzed Aldol Condensation

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This lesson delves into the aldol condensation catalyzed by bases, where aldols undergo dehydration to enals. As shown in Figure 1, the β-hydroxy aldehyde formed in a base-catalyzed aldol addition reaction dehydrates on heating to yield an unsaturated carbonyl product, which is commonly referred to as an enal.

Red Algae

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...

Other Algae

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The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...

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Biogas Purification through the use of a Microalgae-Bacterial System in Semi-Industrial High Rate Algal Ponds

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Algal biomass dehydration.

Kuan-Yeow Show¹, Duu-Jong Lee, Jo-Shu Chang

¹Department of Environmental Engineering, Faculty of Engineering & Green Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900 Kampar, Perak, Malaysia.

Bioresource Technology

|September 4, 2012

Summary

Algae biofuels offer a sustainable alternative to fossil fuels, with advanced harvesting techniques showing great promise for large-scale production. This review covers recent progress in algae separation, harvesting, and drying for efficient biofuel generation.

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Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases

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Published on: December 19, 2019

Area of Science:

Biotechnology
Renewable Energy
Environmental Science

Background:

Biofuels are essential for mitigating environmental issues associated with fossil fuels.
Algae-based biofuels present a high-yield alternative for sustainable energy production.
Current research focuses on optimizing algae harvesting for practical, large-scale biofuel applications.

Purpose of the Study:

To review recent advancements in algae separation, harvesting, and drying technologies for biofuel production.
To discuss the challenges and future prospects of algae harvesting systems.
To provide a comprehensive overview of the current state of algae biofuel research.

Main Methods:

Literature review of recent scientific publications on algae biofuel production.
Analysis of algae destabilization methods.
Evaluation of various algae harvesting technologies.
Examination of algae drying processes.

Main Results:

Significant progress has been made in laboratory- and pilot-scale algae harvesting systems.
Algae offer superior yield potential compared to other biofuel sources.
Effective methods for algae separation, harvesting, and drying are crucial for economic viability.

Conclusions:

Algae biofuel production is a developing field with substantial potential.
Further research and development in harvesting technologies are needed for large-scale implementation.
Optimizing algae separation, harvesting, and drying are key to realizing the promise of algae-based biofuels.