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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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Microbial Bioremediation of Hydrocarbons01:26

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Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to...
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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Green Algae01:21

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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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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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Updated: Apr 15, 2026

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Microalgae: cultivation techniques and wastewater phycoremediation.

Marcondes M Pacheco1, Michele Hoeltz, Maria S A Moraes

  • 1a Environmental Technology Program , Universidade de Santa Cruz do Sul , Santa Cruz do Sul , Brazil.

Journal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering
|April 4, 2015
PubMed
Summary

Phycoremediation, using algae and cyanobacteria, offers a sustainable and cost-effective solution for treating wastewater effluents. This emerging technology addresses environmental concerns and improves water quality.

Keywords:
Biomassbioremediationgaseous effluentsmicroalgaewastewater

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Area of Science:

  • Environmental Science
  • Biotechnology
  • Ecology

Background:

  • Anthropogenic activities generate liquid and gaseous effluents, degrading natural resources and ecosystems.
  • Conventional wastewater treatment methods face economic and environmental limitations.
  • Global concerns regarding water access and climate change necessitate sustainable solutions.

Purpose of the Study:

  • To review microalgae cultivation techniques for wastewater treatment.
  • To explore the potential of phycoremediation in pollutant removal.
  • To highlight the economic and environmental benefits of phycoremediation.

Main Methods:

  • Literature review of phycoremediation techniques.
  • Analysis of microalgae, macroalgae, and cyanobacteria applications.
  • Discussion of different microalgae cultivation systems.

Main Results:

  • Phycoremediation is an emerging, economically viable, and sustainable technology.
  • Algae and cyanobacteria effectively remove or transform pollutants in wastewater.
  • Various cultivation techniques support phycoremediation efficacy.

Conclusions:

  • Phycoremediation presents a promising alternative to conventional wastewater treatment.
  • Microalgae-based solutions contribute to environmental sustainability and water resource management.
  • Further research into cultivation methods can optimize phycoremediation processes.