Biogas production from beverage factory wastewater in a mobile bioenergy station

Chiu Yue Lin, Chyi How Lay, Kit Wayne Chew, Saifuddin Nomanbhay, Rui Lin Gu, Shen Ho Chang, Gopalakrishnan Kumar, Pau Loke Show

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Recently, the production of renewable biogas such as biohydrogen and biomethane from wastewaters through anaerobic fermentation has gained worldwide attention. In the present study, a mobile bioenergy generation station had been constructed based on a high-efficiency hydrogenesis & methanogenesis technology (HyMeTek) developed by Feng Chia University, Taiwan. The substrate was a beverage wastewater having chemical oxygen demand (COD) concentration of 1200 mg/L. This bioenergy station had a feedstock tank (3.8 m3), a nutrient tank (0.8 m3), an acidogenesis tank (AT, 2 m3), two methanogenesis tanks (MT, 4 m3 for each), a membrane bioreactor and a control room. Biogas production rate, methane concentration, COD removal efficiencies, energy efficiency and economical interest of the plant were assessed. The peak total methane production rates for AT (at hydraulic retention time, HRT, 4 h) and MT (at HRT 8 h) were 430 and 7 mL/L·d, respectively. A strategy of shortening HRT was a promising method to enhance biogas quality and energy efficiency. This mobile bioenergy system has commercial potential because it could bring good economic benefit of initial rate of return (58.84%) and payback time (2.68 y).

Original languageBritish English
Article number128564
JournalChemosphere
Volume264
DOIs
StatePublished - Feb 2021

Keywords

  • Biohydrogen
  • Biomethane
  • Cost analysis
  • Food industrial wastewater
  • HyMeTek

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