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Bio-hydrogen production from food waste and sewage sludge in the presence of aged refuse excavated from refuse landfill

Author

Listed:
  • Li, Ming
  • Zhao, Youcai
  • Guo, Qiang
  • Qian, Xiaoqing
  • Niu, Dongjie

Abstract

In this work, the aged refuse (AR) excavated from a typical refuse landfill with over 10 years of placement was used for the enhancement of bio-hydrogen production from food wastes. Firstly, the food wastes taken from a university dining hall were inoculated with sewage sludge (SL) pre-treated by 15min heating at 80°C. It was found that below 0.4% of hydrogen concentration could be detected in the biogas produced due to its severe acidification properties. However, the addition of AR (50% in weight) can considerably increase the hydrogen concentration in the biogas to over 26.6% with pH ascending from 4.36 to 5.81, in comparison with 4–6% using activated carbon as additive with pH descending from 4.43 to 3.91. Meanwhile, it was also found that the hydrogen content in the biogas decreased drastically to 3.3% when the AR was sterilized by heating at 160°C for 2h and then used as additive for bio-hydrogen production from food wastes, indicating that the AR may chiefly function as a microbial inoculum instead of a porous material like activated carbon. Statistical analysis showed that the ultimate hydrogen production potential (Hp), hydrogen production rate (Rmax) and lag-phase time (λ) were found to be 193.85mL/gVS, 94.35mL/(hgVS), 15.28h, respectively, in the presence of 50% AR, and the optimal mixing ratios were 100:50 (wet weight) for food wastes to AR and 100:30 (dry weight) for food wastes to sewage SL, respectively.

Suggested Citation

  • Li, Ming & Zhao, Youcai & Guo, Qiang & Qian, Xiaoqing & Niu, Dongjie, 2008. "Bio-hydrogen production from food waste and sewage sludge in the presence of aged refuse excavated from refuse landfill," Renewable Energy, Elsevier, vol. 33(12), pages 2573-2579.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:12:p:2573-2579
    DOI: 10.1016/j.renene.2008.02.018
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    Cited by:

    1. Khan, Mohd Atiqueuzzaman & Ngo, Huu Hao & Guo, Wenshan & Liu, Yiwen & Zhang, Xinbo & Guo, Jianbo & Chang, Soon Woong & Nguyen, Dinh Duc & Wang, Jie, 2018. "Biohydrogen production from anaerobic digestion and its potential as renewable energy," Renewable Energy, Elsevier, vol. 129(PB), pages 754-768.
    2. Wong, Y.M. & Juan, J.C. & Ting, Adeline & Wu, T.Y., 2014. "High efficiency bio-hydrogen production from glucose revealed in an inoculum of heat-pretreated landfill leachate sludge," Energy, Elsevier, vol. 72(C), pages 628-635.
    3. Loss, Raquel Aparecida & Fontes, Maria Luiza & Reginatto, Valéria & Antônio, Regina Vasconcellos, 2013. "Biohydrogen production by a mixed photoheterotrophic culture obtained from a Winogradsky column prepared from the sediment of a southern Brazilian lagoon," Renewable Energy, Elsevier, vol. 50(C), pages 648-654.
    4. Wang, Shaojie & Zhang, Ting & Su, Haijia, 2016. "Enhanced hydrogen production from corn starch wastewater as nitrogen source by mixed cultures," Renewable Energy, Elsevier, vol. 96(PB), pages 1135-1141.

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