Thermal Treatment of Meat Industry Waste

Thermal treatment of meat industry waste encompasses processes such as combustion, pyrolysis and gasification designed to convert hazardous by-products of slaughterhouses, rendering plants and meat processing facilities into energy, fuels and valuable materials. These processes reduce waste volumes, mitigate environmental impacts and enable recovery of nutrients such as phosphorus and calcium from bone residues. Modern techniques employ fixed-bed, fluidised-bed and rotary kilns, entrained-flow reactors and tailored combustion chambers to optimise temperature profiles, residence times and emission controls. Thermal conversion routes supply heat, power or syngas for onsite energy demands, while by-products including hydroxyapatite-rich ash and biochar can be repurposed as fertilisers, catalysts or adsorbents. Advances in computational modelling and process integration have enhanced control over pollutant formation, energy efficiency and product quality, supporting circular economy principles in meat-processing supply chains worldwide.

Research from Nature Portfolio

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Thermal Treatment of Meat Industry Waste publication trend

The graph below shows the total number of articles in thermal treatment of meat industry waste across all publications each year (not limited to Nature Index journals).

Technical terms

Pyrolysis: Thermal decomposition of organic material in the absence of oxygen, yielding biochar, oils and gases.

Gasification: Partial oxidation of organic feedstock at high temperature to produce a combustible synthesis gas.

Hydroxyapatite: A calcium phosphate mineral recovered from treated bone waste, used as a fertiliser or industrial precursor.

Co-combustion: The concurrent burning of multiple waste streams or fuels in a single reactor to optimise energy output and ash characteristics.

References

1. Thermochemical Conversion of Animal-Derived Waste: A Mini-Review with a Focus on Chicken Bone Waste. Processes (2024).
2. Optimisation of the co-combustion of meat–bone meal and sewage sludge in terms of the quality produced ashes used as substitute of phosphorites. Environmental Science and Pollution Research (2020).
3. Thermal treatment of waste from the meat industry in high scale rotary kiln. International Journal of Environmental Science and Technology (2017).
4. Quantification of material recovery from meat waste incineration – An approach to an updated food waste hierarchy. Journal of Hazardous Materials (2021).