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Pre-acclimation of a wastewater inoculum to cellulose in an aqueous-cathode MEC improves power generation in air-cathode MFCs.
Bioresour Technol. 2011 Jan; 102(1):367-71.BT

Abstract

Cellulose has been used in two-chamber microbial fuel cells (MFCs), but power densities were low. Higher power densities can be achieved in air-cathode MFCs using an inoculum from a two-chamber, aqueous-cathode microbial electrolysis cell (MEC). Air-cathode MFCs with this inoculum produced maximum power densities of 1070 mW m(-2) (cathode surface area) in single-chamber and 880 mW m(-2) in two-chamber MFCs. Coulombic efficiencies ranged from 25% to 50%, and COD removals were 50-70% based on total cellulose removals of 60-80%. Decreasing the reactor volume from 26 to 14 mL (while maintaining constant electrode spacing) decreased power output by 66% (from 526 to 180 mW m(-2)) due to a reduction in total mass of cellulose added. These results demonstrate that air-cathode MFCs can produce high power densities with cellulose following proper acclimation of the inoculum, and that organic loading rates are important for maximizing power densities from particulate substrates.

Authors+Show Affiliations

State Key Laboratory of Clean Energy Utilization, Department of Energy Engineering Zhejiang University, Hangzhou 310027, PR China.No affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20580223

Citation

Cheng, Shaoan, et al. "Pre-acclimation of a Wastewater Inoculum to Cellulose in an Aqueous-cathode MEC Improves Power Generation in Air-cathode MFCs." Bioresource Technology, vol. 102, no. 1, 2011, pp. 367-71.
Cheng S, Kiely P, Logan BE. Pre-acclimation of a wastewater inoculum to cellulose in an aqueous-cathode MEC improves power generation in air-cathode MFCs. Bioresour Technol. 2011;102(1):367-71.
Cheng, S., Kiely, P., & Logan, B. E. (2011). Pre-acclimation of a wastewater inoculum to cellulose in an aqueous-cathode MEC improves power generation in air-cathode MFCs. Bioresource Technology, 102(1), 367-71. https://doi.org/10.1016/j.biortech.2010.05.083
Cheng S, Kiely P, Logan BE. Pre-acclimation of a Wastewater Inoculum to Cellulose in an Aqueous-cathode MEC Improves Power Generation in Air-cathode MFCs. Bioresour Technol. 2011;102(1):367-71. PubMed PMID: 20580223.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pre-acclimation of a wastewater inoculum to cellulose in an aqueous-cathode MEC improves power generation in air-cathode MFCs. AU - Cheng,Shaoan, AU - Kiely,Patrick, AU - Logan,Bruce E, Y1 - 2010/06/26/ PY - 2010/03/10/received PY - 2010/05/21/revised PY - 2010/05/26/accepted PY - 2010/6/29/entrez PY - 2010/6/29/pubmed PY - 2011/3/1/medline SP - 367 EP - 71 JF - Bioresource technology JO - Bioresour Technol VL - 102 IS - 1 N2 - Cellulose has been used in two-chamber microbial fuel cells (MFCs), but power densities were low. Higher power densities can be achieved in air-cathode MFCs using an inoculum from a two-chamber, aqueous-cathode microbial electrolysis cell (MEC). Air-cathode MFCs with this inoculum produced maximum power densities of 1070 mW m(-2) (cathode surface area) in single-chamber and 880 mW m(-2) in two-chamber MFCs. Coulombic efficiencies ranged from 25% to 50%, and COD removals were 50-70% based on total cellulose removals of 60-80%. Decreasing the reactor volume from 26 to 14 mL (while maintaining constant electrode spacing) decreased power output by 66% (from 526 to 180 mW m(-2)) due to a reduction in total mass of cellulose added. These results demonstrate that air-cathode MFCs can produce high power densities with cellulose following proper acclimation of the inoculum, and that organic loading rates are important for maximizing power densities from particulate substrates. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/20580223/Pre_acclimation_of_a_wastewater_inoculum_to_cellulose_in_an_aqueous_cathode_MEC_improves_power_generation_in_air_cathode_MFCs_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(10)00941-7 DB - PRIME DP - Unbound Medicine ER -