Performance of Food Waste Feeding Pilot Plant Biodigester Operated with Identified Potential Substrate Properties

Authors

  • Siti Hajar Yahaya
  • Syafi'ah Nadiah Mohd Said Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, MALAYSIA
  • Mohd Azhar Zain Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, MALAYSIA
  • Mohammed Shahrir Mohamad Zahari Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, MALAYSIA
  • Noor Azrimi Umor Faculty of Applied Sciences, UiTM Negeri Sembilan, Pekan Parit Tinggi, 72000 Kuala Pilah, Negeri Sembilan, MALAYSIA
  • Shahrul Ismail Universiti Malaysia Terengganu

Keywords:

Anaerobic digestion, biomethane potential, biogas, food waste, inhibition effects, methane

Abstract

Anaerobic digestion has been proven as sustainable process technology for organic waste conversion into renewable bio-energy. This study was conducted to evaluate the performance of mono-digestion process for different types of food waste substrates using pilot scale anaerobic bio-digester (1200 L) in terms of biogas production and the chemical oxygen demand (COD) removal efficiency. The biochemical methane potential (BMP) test of rice waste (R), vegetable waste (VW) and coconut meat residue (CMR) were tested at initial volatile solid (VS) loading of 0.1631, 1.1690, 1.0059 g VS/L, respectively at fixed inoculum/substrate (I/S) ratio of 0.5. Further study conducted by using rice waste (R) in pilot plant anaerobic bio-digester (1200L) for 43 days to investigate the reactor performance in term of COD removal efficiency. Interestingly, inoculum used for this study performs very well and able to digest food waste. Results demonstrate that the maximum specific biogas yield (SBY) was observed from rice waste (R) at 0.0587 L/kg VS compared to other substrates. Specific biogas yield (SBY) of rice waste (R) was 16.01% and 11.92% higher than substrate vegetable waste (VW) and coconut meat residue (CMR) respectively. High COD removal efficiency of pilot plant bio-digester (up to 93 %) using rice waste (R) as sole substrate indicates a good performance of reactor in treating food waste. Conversion of food waste to biogas in pilot plant bio-digester is highly potential as one of the sustainable waste treatment technology

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Author Biography

Shahrul Ismail, Universiti Malaysia Terengganu

School of Ocean Engineering, Universiti Malaysia Terengganu

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Published

28-05-2021

How to Cite

Yahaya, S. H., Mohd Said, S. N., Zain, M. A., Mohamad Zahari, M. S., Umor, N. A., & Ismail, S. (2021). Performance of Food Waste Feeding Pilot Plant Biodigester Operated with Identified Potential Substrate Properties . International Journal of Integrated Engineering, 13(3), 20–27. Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6469