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Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

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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Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...
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Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization
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Published on: December 29, 2013

Energy-based models for environmental biotechnology.

Jorge Rodríguez1, Juan M Lema, Robbert Kleerebezem

  • 1Sustainable Environment Research Centre, University of Glamorgan, 2 Forest Grove, Pontypridd CF37 1UB, UK. jrodrigu@glam.ac.uk

Trends in Biotechnology
|June 3, 2008
PubMed
Summary
This summary is machine-generated.

Environmental biotechnology advances focus on producing biofuels and chemicals using anaerobic microbial communities. A new Gibbs-energy model aids in optimizing these energy-limited ecosystems for enhanced reaction catalysis.

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Area of Science:

  • Environmental biotechnology
  • Microbial ecology
  • Biochemical engineering

Background:

  • Environmental biotechnology processes are expanding beyond pollutant removal to include chemical and biofuel production.
  • Future anaerobic processes aim to maximize product yields while minimizing biomass, requiring precise control over microbial communities.

Purpose of the Study:

  • To propose a Gibbs-energy-based methodology for mathematical modeling of energy-limited anaerobic ecosystems.
  • To provide a framework for describing microbial activities in relation to environmental factors for process optimization.

Main Methods:

  • Development of a Gibbs-energy-based thermodynamic model.
  • Mathematical modeling of anaerobic microbial ecosystems.
  • Analysis of microbial activity as a function of environmental parameters.

Main Results:

  • The proposed methodology establishes clear thermodynamic boundaries for anaerobic processes.
  • The model provides a basis for understanding and predicting microbial behavior in energy-limited environments.
  • This approach facilitates the enhanced catalysis of specific reactions relevant to industrial processes.

Conclusions:

  • A Gibbs-energy-based modeling approach is effective for optimizing anaerobic biotechnological processes.
  • This methodology supports the development of more efficient bio-based production of chemicals and biofuels.
  • Further application of this model can lead to significant advancements in environmental biotechnology.