Ultrasound assisted alkaline pre-treatment of sugarcane filter mud for performance enhancement in biogas production

Authors

  • Zahir Talha 1. College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China; 2. Research and Development, White Nile Sugar Company, Khartoum 11218, Sudan
  • Abdelbagi Hamid Research and Development, White Nile Sugar Company, Khartoum 11218, Sudan
  • Dong Guo College of Biotechnology and Pharmaceutical Engineering, Nanjing Technology University, Nanjing 211816, Jiangsu, China
  • Muhammad Hassan 1. College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China; 2. US-Pakistan Centre for Advanced Studies in Energy, National University of Science and Technology, Islamabad 44000, Pakistan
  • Esmaeil Mehryar 1. College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China; 2. Department of Biosystems Engineering, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
  • Cedric Okinda College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China
  • Weimin Ding College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China

Keywords:

anaerobic digestion, ultrasound-alkaline pre-treatment, biogas production, filter mud, enzymatic hydrolysis

Abstract

Sugar cane filter mud pre-treated by combined ultrasound-alkaline pre-treatment at different NaOH loading rates (0.25%-6%) and pre-treatment time (5 min to 60 min) performed in batch reactors under mesophilic conditions ((37±1)°C). Central composite design (CCD) was used to assess the effects on the chemical oxygen demand (COD) solubilisation, volatile fatty acid (VFA) concentration and methane yield. All pre-treatments were found significant to enhance methane yield (up to 39.49%) compared to the untreated filter mud. In general, results demonstrated the effectiveness of ultrasound assisted alkaline pre-treatment while increasing both NaOH loadings and pre-treatment time. Pre-treatment also increased the CODs solubilisation as well as VFA concentration, the optimal Initial CODs and VFA of 12 212 mg/L and 5830.97 mg/L, as determined by response surface methodology were noted on E9. Finally, modified Gompertz model was applied successfully to study kinetic of biogas production data, and showed an excellent fit. Keywords: anaerobic digestion, ultrasound-alkaline pre-treatment, biogas production, filter mud, enzymatic hydrolysis DOI: 10.25165/j.ijabe.20181101.3441 Citation: Talha Z, Hamid A, Guo D, Hassan M, Mehryar E, Okinda C, et al. Ultrasound assisted alkaline pre-treatment of sugarcane filter mud for performance enhancement in biogas production. Int J Agric & Biol Eng, 2018; 11(1): 226–231.

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Published

2018-01-31

How to Cite

Talha, Z., Hamid, A., Guo, D., Hassan, M., Mehryar, E., Okinda, C., & Ding, W. (2018). Ultrasound assisted alkaline pre-treatment of sugarcane filter mud for performance enhancement in biogas production. International Journal of Agricultural and Biological Engineering, 11(1), 226–231. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/3441

Issue

Vol. 11 No. 1 (2018): IJABE

Section

Renewable Energy and Material Systems

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