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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...

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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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Updraft gasification of salmon processing waste.

Sarah Rowland¹, Cynthia K Bower, Krushna N Patil

¹Dept. of Animal Science, Oklahoma State Univ., 125 FAPC, Robert M. Kerr Food & Agricultural Products Center, Stillwater, OK 74078, USA.

Journal of Food Science

|October 6, 2009

Summary

This summary is machine-generated.

Gasification is a feasible method for processing salmon waste into energy. Pre-dried salmon waste or mixtures with wood pellets can be successfully gasified, yielding valuable syngas.

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Area of Science:

Waste Management
Biomass Energy Conversion
Chemical Engineering

Background:

Salmon harvesting generates significant wet waste streams (66-79% moisture).
Traditional disposal methods may not be sustainable or energy-efficient.
Gasification converts carbonaceous materials into combustible syngas at high temperatures.

Purpose of the Study:

To assess the feasibility of gasifying salmon harvesting waste.
To determine the energy potential of salmon waste through gasification.
To evaluate the efficiency of converting salmon waste into syngas.

Main Methods:

Salmon waste was dried by mixing with wood pellets to achieve 20% moisture content.
Alternatively, whole salmon with 12% moisture was gasified directly.
Gasification tests were conducted in a small-scale, fixed-bed, updraft gasifier.
Syngas composition and heating value were analyzed.

Main Results:

High heating values (HHV) of syngas ranged from 1.45 to 1.98 MJ/kg.
Cold gas efficiencies varied between 13.6% and 26%.
Gasification was successful with pre-dried salmon waste and low-moisture mixtures.

Conclusions:

Gasification is a viable technology for salmon waste disposal and energy recovery.
Optimizing moisture content is crucial for efficient salmon waste gasification.
Further research is ongoing to advance this waste-to-energy pathway.