On the repeatability and reproducibility of experimental two-chambered microbial fuel cells

A. Larrosa, L. J. Lozano, Krishna Katuri, I. Head, K. Scott, C. Godinez*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The capability of the experimental systems used in two-chambered microbial fuel cell experimentation was tested in terms of repeatability and reproducibility. The optimal number of replicates needed to discriminate between responses of technical interest, both in open-circuit and closed-circuit experiments was studied. For N = 4 replicates, these differences were set to 9.0% CODR units, 261 mV and 63 mg/L in VFAs for open-circuit experiments and 3.6%, 30.2 mV and 45 mg/L in closed circuit experiments. Cycling operation with several reactor refills using fresh wastewater and keeping the same biofilm between cycles almost has no influence in CODR and VFAs but voltage standard deviation reduces by one half between the first and fourth cycle. This study takes part by the option of increasing the number of replicates because although it may have lower repeatability, the amount of data generated per unit time is larger than running the experiments in cycles.

Original languageEnglish (US)
Pages (from-to)1852-1857
Number of pages6
JournalFuel
Volume88
Issue number10
DOIs
StatePublished - Oct 1 2009

Keywords

  • Biomass
  • Experimental capability
  • Microbial fuel cell
  • Waste water

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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