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Journal of Renewable and Sustainable Energy / Volume 4 / Issue 1 / REGULAR ARTICLES

J. Renewable Sustainable Energy 4, 013104 (2012); http://dx.doi.org/10.1063/1.3682077 (7 pages)

Anaerobic fermentation hydrogen production from apple residue: Effects of sludge pretreatments

Hui Wang1,2, Hui Xu2, Shenghua Ma2, Zelun Zhi2, Xiaofang Wang2, Zhong Fang2, Ming Fang2, and Jintao Bai1

1National Key Laboratory of photoelectric technology and Functional materials (Culture Base), National photoelectric technology and Functional Materials & Application International Science and Technology Cooperation Base, Institute of Photonics and Photon-Technology, Northwest University, Xi’an 710069, People’s Republic of China
2Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry and Materials Science, Northwest University, Xi’an 710069, People’s Republic of China

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(Received 28 September 2011; accepted 31 December 2011; published online 1 February 2012)

Activated sludge from sewage treatment plant was tested for their suitability as inoculum source for the fermentation H2 production. A series of batch experiments were conducted to study the effects of various sludge pretreatments (domestication, boiling, acid, and alkali) on the fermentative H2 production from apple residue. The sludge domestication process markedly shortens the H2-producing lag time, and H2 gas was produced only 5 min after mixing the sludge and substrate. The boiling pretreatment of the sludge is better than the acid and alkali pretreatments in enhancing hydrogen yield from apple residue. The best domestication and boiling time for the sludge were 6 h and 30 min, respectively. A maximum cumulative H2 yield of 87.33 ml·g−1-TS with an average H2 production rate of 14.56 ml·g−1-TS·h−1 was obtained at the fermentation temperature of 37 °C, initial pH 7.0, and substrate concentrate of 20 g·l−1.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. MATERIALS AND METHODS
    1. Equipments
    2. Experiment
      1. Substrate pretreatment
      2. Sludge pretreatment
      3. Batch experiments
      4. Analysis
  3. RESULTS AND DISCUSSION
    1. Effects of sludge acclimation time on H 2 production
    2. Effect of boiling time on H 2 production
    3. Effects of acid and alkali pretreatments on hydrogen production
  4. CONCLUSIONS

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KEYWORDS, PACS, and IPC

Keywords

fermentation, hydrogen production, sewage treatment, sludge treatment

PACS

  • 88.20.jm

    Hydrolysis and fermentation

  • 88.30.E-

    Hydrogen production with renewable energy

International Patent Classification (IPC)

  • C02

    Treatment of water, waste water, sewage, or sludge

  • C02F11/00

    Treatment of sludge; Devices therefor

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3682077

PUBLICATION DATA

ISSN

1941-7012 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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