Biogas production from beverage factory wastewater in a mobile bioenergy station.

Affiliation

Lin CY(1), Lay CH(2), Chew KW(3), Nomanbhay S(4), Gu RL(5), Chang SH(6), Kumar G(7), Show PL(8).
Author information:
(1)Department of Environmental Engineering and Science, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan; Green Energy and Biotechnology Industry Research Center, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan; Master's Program of Green Energy Science and Technology, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan.
(2)Green Energy and Biotechnology Industry Research Center, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan; Master's Program of Green Energy Science and Technology, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan. Electronic address: [Email]
(3)School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia.
(4)Institute of Sustainable Energy, Universiti Tenaga Nasional
(The National Energy University), Jalan IKRAM-UNITEN, Kajang, 43000, Selangor, Malaysia.
(5)Master's Program of Green Energy Science and Technology, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan.
(6)Department of Accounting, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan.
(7)School of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Sinchon-dong, Seodaemun-gu, Seoul, 03722, Republic of Korea.
(8)Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, B34, Semenyih, 43500, Selangor, Malaysia. Electronic address: [Email]

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).