Sustainable power generation from sewage and energy recovery from wastewater with variable resistance using microbial fuel cell

Enzyme and Microbial Technology
Debajyoti BoseMargavelu Gopinath

Abstract

Wastewater from sewage sources contribute significantly to water pollution from domestic waste; one way to recover energy from these sources while at the same time, treating the water is possible using Microbial Fuel Cell. In this work, a two chambered microbial fuel cell was designed and fabricated with carbon cloth electrodes and Nafion-117 membrane, having Platinum as the catalyst. Wastewater from an organic load of 820 ± 30 mg/l reduced to around 170 mg/l, with the change in pH from 7.65 ± 0.6 to 7. 31 ± 0.5; over the time of operation the biochemical oxygen demand from an initial 290 ± 30 mg/l reduced to 175 ± 10 mg/l. Open circuit voltage was achieved mostly between 750-850 mV, with inoculated sludge produced a peak open circuit voltage of 1.45 V between fed-batch cycles. For characterization of power generated, polarization curves are evaluated with varying resistance to examine system stability with varying resistance. The current density and power density are reported to peak at 0.54 mA/m2 and 810 ± 10 mW/m2 respectively. The development of stable biofilms on the anode contributes to the power generation and was evaluated using microscopic analysis, this shows bacteria present in wastewater are electroactive microbial ...Continue Reading

Citations

Oct 21, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Dhiraj ChaudhariVijay Jadhav
Jun 18, 2021·3 Biotech·Kanika AroraSaurabh Kulshrestha

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilm & Infectious Disease

Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.

Related Papers

Journal of Microbiology and Biotechnology
Jae Kyung JangKenneth H Nealson
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Catalina González-NavaFrancisco J Rodríguez-Valadez
Water Science and Technology : a Journal of the International Association on Water Pollution Research
M M Ghangrekar, V B Shinde
© 2022 Meta ULC. All rights reserved