BioResources (Jul 2014)

Optimization of NaOH Pretreatment for Enhancement of Biogas Production of Banana Pseudo-Stem Fiber using Response Surface Methodology

  • Pei Pei,
  • Chengming Zhang,
  • Jihong Li,
  • Sandra Chang,
  • Shizhong Li,
  • Jianlong Wang,
  • Mingxing Zhao,
  • Jiang Li,
  • Menghui Yu,
  • Xuelan Chen

DOI
https://doi.org/10.15376/biores.9.3.5073-5087
Journal volume & issue
Vol. 9, no. 3
pp. 5073 – 5087

Abstract

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In this paper, the NaOH pretreatment of banana pseudo-stem fiber for biogas production was investigated using a statistically designed set of experiments. A central composite design was used to identify the optimum pretreatment condition for four factors, i.e., NaOH concentration, pretreatment temperature, pretreatment time, and fiber length, on biogas fermentation of banana pseudo-stem fiber. The best pretreatment condition was 7.8% NaOH, 0.2-cm fiber length, and a temperature of 48 °C for 3 days. NaOH pretreatment increased the biogas yield of banana pseudo-stem fiber. The highest biogas yield was 463.0 mL•g-1VSadded, which was 89.2% higher than that of the control, at 244.7 mL•g-1VSadded.

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