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Effect of microwave pretreatment on semi-continuous anaerobic digestion of sewage sludge

Author

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  • Gil, A.
  • Siles, J.A.
  • Martín, M.A.
  • Chica, A.F.
  • Estévez-Pastor, F.S.
  • Toro-Baptista, E.

Abstract

Sewage sludge is a waste produced worldwide in wastewater treatment plants (WWTP) that constitutes a major environmental and health problem. Although anaerobic digestion has become a widely used method for the management and treatment of sewage sludge, the biomethanization of this waste leads to low biodegradability and low methane production. Microwave pretreatment under fixed conditions of 20 × 106 J/kg TS (Total Solids) and 700 J/s has been described as an interesting alternative in order to improve the feasibility of the anaerobic digestion of sewage sludge. In this study at laboratory scale, the semi-continuous anaerobic digestion of raw sewage sludge and pretreated sewage sludge were compared in terms of organic loading rate (OLR), biodegradability and methane production. The main results were found to be OLR up to 2.80 × 10−5 kg TVS (Total Volatile Solids)/m3·s, 70% biodegradability and a 20% improvement in methane yield compared to sewage sludge without pretreatment. Higher loads led to free ammonia accumulation, increase of pH values and system destabilization.

Suggested Citation

  • Gil, A. & Siles, J.A. & Martín, M.A. & Chica, A.F. & Estévez-Pastor, F.S. & Toro-Baptista, E., 2018. "Effect of microwave pretreatment on semi-continuous anaerobic digestion of sewage sludge," Renewable Energy, Elsevier, vol. 115(C), pages 917-925.
    • Handle: RePEc:eee:renene:v:115:y:2018:i:c:p:917-925
    DOI: 10.1016/j.renene.2017.07.112
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    Cited by:

    1. Georgia-Christina Mitraka & Konstantinos N. Kontogiannopoulos & Maria Batsioula & George F. Banias & Anastasios I. Zouboulis & Panagiotis G. Kougias, 2022. "A Comprehensive Review on Pretreatment Methods for Enhanced Biogas Production from Sewage Sludge," Energies, MDPI, vol. 15(18), pages 1-56, September.
    2. Elalami, D. & Carrere, H. & Monlau, F. & Abdelouahdi, K. & Oukarroum, A. & Barakat, A., 2019. "Pretreatment and co-digestion of wastewater sludge for biogas production: Recent research advances and trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 114(C), pages 1-1.
    3. Elvira E. Ziganshina & Svetlana S. Bulynina & Ayrat M. Ziganshin, 2022. "Impact of Granular Activated Carbon on Anaerobic Process and Microbial Community Structure during Mesophilic and Thermophilic Anaerobic Digestion of Chicken Manure," Sustainability, MDPI, vol. 14(1), pages 1-20, January.
    4. Xue, Shengrong & Song, Jinghui & Wang, Xiaojiao & Shang, Zezhou & Sheng, Chenjing & Li, Chongyuan & Zhu, Yufan & Liu, Jingyu, 2020. "A systematic comparison of biogas development and related policies between China and Europe and corresponding insights," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).
    5. Agnieszka Garlicka & Monika Zubrowska-Sudol & Katarzyna Umiejewska & Otton Roubinek & Jacek Palige & Andrzej Chmielewski, 2020. "Effects of Thickened Excess Sludge Pre-Treatment Using Hydrodynamic Cavitation for Anaerobic Digestion," Energies, MDPI, vol. 13(10), pages 1-15, May.
    6. Elagroudy, S. & Radwan, A.G. & Banadda, N. & Mostafa, Nagwan G. & Owusu, P.A. & Janajreh, I., 2020. "Mathematical models comparison of biogas production from anaerobic digestion of microwave pretreated mixed sludge," Renewable Energy, Elsevier, vol. 155(C), pages 1009-1020.
    7. 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.
    8. Walczak, Justyna & Karolinczak, Beata & Zubrowska-Sudol, Monika, 2023. "Effect of co-digestion and hydrodynamic disintegration on the methane potential of sewage sludge and organic fraction of municipal solid waste with consideration of the carbon footprint," Energy, Elsevier, vol. 282(C).
    9. Hosseini Koupaie, E. & Lin, L. & Bazyar Lakeh, A.A. & Azizi, A. & Dhar, B.R. & Hafez, H. & Elbeshbishy, E., 2021. "Performance evaluation and microbial community analysis of mesophilic and thermophilic sludge fermentation processes coupled with thermal hydrolysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    10. Panigrahi, Sagarika & Dubey, Brajesh K., 2019. "A critical review on operating parameters and strategies to improve the biogas yield from anaerobic digestion of organic fraction of municipal solid waste," Renewable Energy, Elsevier, vol. 143(C), pages 779-797.
    11. Jongkeun Lee & Oh Kyung Choi & Dooyoung Oh & Kawnyong Lee & Ki Young Park & Daegi Kim, 2020. "Stimulation of Lipid Extraction Efficiency from Sewage Sludge for Biodiesel Production through Hydrothermal Pretreatment," Energies, MDPI, vol. 13(23), pages 1-10, December.
    12. Chen, Yi-di & Li, Suping & Ho, Shih-Hsin & Wang, Chengyu & Lin, Yen-Chang & Nagarajan, Dillirani & Chang, Jo-Shu & Ren, Nan-qi, 2018. "Integration of sludge digestion and microalgae cultivation for enhancing bioenergy and biorefinery," Renewable and Sustainable Energy Reviews, Elsevier, vol. 96(C), pages 76-90.

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