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Related Concept Videos

Green Algae01:21

Green Algae

269
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...
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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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Updated: Oct 12, 2025

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Recent progress in flocculation, dewatering, and drying technologies for microalgae utilization: Scalable and

Ki Ha Min1, Dong Hyun Kim1, Mi-Ran Ki1

  • 1Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea.

Bioresource Technology
|November 26, 2021
PubMed
Summary

This review explores cost-effective microalgal harvesting techniques, focusing on flocculation, dewatering, and drying. Optimizing these processes is crucial for the commercial viability of microalgal biomass applications.

Keywords:
DewateringDryingFlocculationHarvestingMicroalgae

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Area of Science:

  • Biotechnology
  • Sustainable Energy

Background:

  • Microalgal research shows promise for high-value industrial applications.
  • Large-scale production, harvesting, and processing of microalgal biomass require cost-effective methods for commercial success.

Purpose of the Study:

  • To review traditional and recent advances in microalgal harvesting techniques, specifically flocculation, dewatering, and drying.
  • To identify key considerations for selecting appropriate harvesting methods based on microalgal characteristics and desired products.
  • To propose future directions for developing scalable and low-cost microalgal harvesting systems.

Main Methods:

  • Comprehensive literature review of microalgal harvesting technologies.
  • Analysis of traditional and novel approaches in flocculation, dewatering, and drying.
  • Evaluation of factors influencing harvesting efficiency and cost-effectiveness.

Main Results:

  • Harvesting technologies, particularly for microalgae, are energy-intensive and costly.
  • Selection of harvesting techniques depends on microalgal species and final product requirements.
  • Current methods need optimization for scalability and economic feasibility.

Conclusions:

  • Developing scalable, low-cost microalgal harvesting systems is essential for industrial application.
  • Further research into flocculation, dewatering, and drying is needed to overcome current limitations.
  • Future directions should focus on integrated and efficient harvesting strategies.