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Anaerobic co-digestion of sewage sludge and slaughterhouse waste in existing wastewater digesters

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  • Salehiyoun, Ahmad Reza
  • Di Maria, Francesco
  • Sharifi, Mohammad
  • Norouzi, Omid
  • Zilouei, Hamid
  • Aghbashlo, Mortaza

Abstract

The effect of co-digesting slaughterhouse waste (SHW) with waste mixed sludge (WMS) for possible implementation in a full-scale digester in an existing wastewater treatment plant (WWTP) was investigated. Biomethane potential (BMP) runs were activated using SHW:WMS ratios from 0% to 60% at total solids (TS) of 4% and 7%. Higher values of BMP of about 735 NLCH4/kg volatile solids (VS) were obtained for the run with a SHW:WMS ratio of 40% and TS = 4%. Continuous runs were also performed using the same SHW:WMS ratio at different organic loading rates (OLR). The maximum biomethane generation of 550 NLCH4/kgVS was achieved for an OLR = 1.5 kgVS/m3.day. Stability monitored by FOS/TAC showed values < 0.7 for OLR up to 2.0 kgVS/m3.day. The amount of SHW processable in the full-scale digester of the WWTP ranged from about 1.8 MgTS/day to 3.0 MgTS/day with a biomethane production of about 2300 Nm3/day and 1400 Nm3/day, respectively.

Suggested Citation

  • Salehiyoun, Ahmad Reza & Di Maria, Francesco & Sharifi, Mohammad & Norouzi, Omid & Zilouei, Hamid & Aghbashlo, Mortaza, 2020. "Anaerobic co-digestion of sewage sludge and slaughterhouse waste in existing wastewater digesters," Renewable Energy, Elsevier, vol. 145(C), pages 2503-2509.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:2503-2509
    DOI: 10.1016/j.renene.2019.08.001
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    Citations

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    Cited by:

    1. Pirmoradi, Neda & Ghaneian, Mohammad Taghi & Ehrampoush, Mohammad Hassan & Salmani, Mohammad Hossein & Hatami, Behnam, 2021. "The conversion of poultry slaughterhouse wastewater sludge into biodiesel: Process modeling and optimization," Renewable Energy, Elsevier, vol. 178(C), pages 1236-1249.
    2. Wang, Shunli & Wei, Zehui & Wang, Lili, 2024. "Improving slaughterhouse byproducts utilization via anaerobic digestion, composting, and rendering," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PA).
    3. Salehiyoun, Ahmad Reza & Zilouei, Hamid & Safari, Mohammad & Di Maria, Francesco & Samadi, Seyed Hashem & Norouzi, Omid, 2022. "An investigation for improving dry anaerobic digestion of municipal solid wastes by adding biochar derived from gasification of wood pellets," Renewable Energy, Elsevier, vol. 186(C), pages 1-9.
    4. Bedoić, Robert & Špehar, Ana & Puljko, Josip & Čuček, Lidija & Ćosić, Boris & Pukšec, Tomislav & Duić, Neven, 2020. "Opportunities and challenges: Experimental and kinetic analysis of anaerobic co-digestion of food waste and rendering industry streams for biogas production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 130(C).
    5. Derick Lima & Gregory Appleby & Li Li, 2023. "A Scoping Review of Options for Increasing Biogas Production from Sewage Sludge: Challenges and Opportunities for Enhancing Energy Self-Sufficiency in Wastewater Treatment Plants," Energies, MDPI, vol. 16(5), pages 1-34, March.
    6. Tiago Miguel Cabrita & Maria Teresa Santos, 2023. "Biochemical Methane Potential Assays for Organic Wastes as an Anaerobic Digestion Feedstock," Sustainability, MDPI, vol. 15(15), pages 1-30, July.
    7. Young-Ju Song & Kyung-Su Oh & Beom Lee & Dae-Won Pak & Ji-Hwan Cha & Jun-Gyu Park, 2021. "Characteristics of Biogas Production from Organic Wastes Mixed at Optimal Ratios in an Anaerobic Co-Digestion Reactor," Energies, MDPI, vol. 14(20), pages 1-16, October.
    8. Grosser, A. & Neczaj, E. & Jasinska, Anna & Celary, P., 2020. "The influence of grease trap sludge sterilization on the performance of anaerobic co-digestion of sewage sludge," Renewable Energy, Elsevier, vol. 161(C), pages 988-997.

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