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An analysis of metal concentrations in food wastes for biogas production

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  • Bożym, Marta
  • Florczak, Iwona
  • Zdanowska, Paulina
  • Wojdalski, Janusz
  • Klimkiewicz, Marek

Abstract

Organic waste from the food processing industry constitutes suitable substrate for anaerobic digestion. The chemical composition of digester feedstock, the availability of nutrients for microorganisms responsible for the anaerobic decomposition of organic compounds and the substrate's toxicity for bacteria have to be controlled in plant material for biogas production. The chemical composition of biomass determines biogas yield and the quality of digestate used as fertilizer. The objective of this study was to analyze the chemical composition and toxicity of food wastes by atomic absorption spectrometry (AAS). The content of heavy and light metals was determined in selected plant wastes, including brewer's spent grain, apple pomace, strawberry pomace, carrot pomace, orange and grapefruit peel, beetroot and potato peel, potato pulp, rapeseed cake, walnut and hazelnut shells. The analyzed wastes were characterized by varied content of Pb, Cd, Cu, Zn, Cr, Ni, Na, K, Mg and Ca. The results of this study can be used to optimize the composition of feedstock for biogas plants.

Suggested Citation

  • Bożym, Marta & Florczak, Iwona & Zdanowska, Paulina & Wojdalski, Janusz & Klimkiewicz, Marek, 2015. "An analysis of metal concentrations in food wastes for biogas production," Renewable Energy, Elsevier, vol. 77(C), pages 467-472.
  • Handle: RePEc:eee:renene:v:77:y:2015:i:c:p:467-472
    DOI: 10.1016/j.renene.2014.11.010
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    References listed on IDEAS

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    6. Naja, Ghinwa M. & Alary, René & Bajeat, Philippe & Bellenfant, Gaël & Godon, Jean-Jacques & Jaeg, Jean-Philippe & Keck, Gérard & Lattes, Armand & Leroux, Carole & Modelon, Hugues & Moletta-Denat, Mari, 2011. "Assessment of biogas potential hazards," Renewable Energy, Elsevier, vol. 36(12), pages 3445-3451.
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    Cited by:

    1. Abdelsalam, E. & Samer, M. & Attia, Y.A. & Abdel-Hadi, M.A. & Hassan, H.E. & Badr, Y., 2016. "Comparison of nanoparticles effects on biogas and methane production from anaerobic digestion of cattle dung slurry," Renewable Energy, Elsevier, vol. 87(P1), pages 592-598.
    2. Zhang, Quanguo & Hu, Jianjun & Lee, Duu-Jong, 2016. "Biogas from anaerobic digestion processes: Research updates," Renewable Energy, Elsevier, vol. 98(C), pages 108-119.
    3. repec:eee:rensus:v:81:y:2018:i:p1:p:510-523 is not listed on IDEAS
    4. Taghizadeh-Alisaraei, Ahmad & Hosseini, Seyyed Hasan & Ghobadian, Barat & Motevali, Ali, 2017. "Biofuel production from citrus wastes: A feasibility study in Iran," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 1100-1112.
    5. repec:gam:jeners:v:11:y:2018:i:5:p:1057-:d:143220 is not listed on IDEAS
    6. Leite, Wanderli Rogério Moreira & Gottardo, Marco & Pavan, Paolo & Belli Filho, Paulo & Bolzonella, David, 2016. "Performance and energy aspects of single and two phase thermophilic anaerobic digestion of waste activated sludge," Renewable Energy, Elsevier, vol. 86(C), pages 1324-1331.

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    Keywords

    Food waste; Heavy metals; Light metals; Biogas;

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