The potential of waste microalgal hydrolysate for power generation in enzymatic fuel cell

Ja Hyun Lee, Dong Sup Kim, Ji Hyun Yang, Hah Young Yoo, Sung Ok Han, Jinyoung Lee, Chulhwan Park, Seung Wook Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The purpose of this study is to generate power by using the waste hydrolysate from microalgal extracts (AH), substrates of enzymatic fuel cell (EFC), and analyze the effects of microalgal hydrolysate containing a neutralizing agent on EFC. The effect of different dilute acids on extraction of microalgae was also investigated. The maximum concentration (∼5 g/L) of extraction was achieved for Chlorella pyrenoiudosa under the optimum conditions (2% hydrochloric acid and 100 g/L biomass loading). In order to investigate the effects of various neutralization agents used for AH on the EFC system, CV and EIS were investigated. Higher current and lower resistance values appeared during the neutralization using KOH. Maximum power density of 3637 μW/cm2 was obtained for the EFC system, 6.59 folds higher than the control. The result implies that AH used as a substrate has a significant influence on the power generation in the EFC system.

Original languageEnglish
Pages (from-to)903-909
Number of pages7
JournalJournal of Cleaner Production
Volume187
DOIs
Publication statusPublished - 2018 Jun 20

Fingerprint

Enzymatic fuel cells
fuel cell
power generation
Power generation
neutralization
substrate
Substrates
hydrochloric acid
Hydrochloric acid
Biomass
Fuel cell
fold
Acids
acid
biomass
effect

Keywords

  • Enzymatic fuel cell
  • Extraction
  • Hydrolysate
  • Microalgae
  • Neutralization reagent

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)
  • Strategy and Management
  • Industrial and Manufacturing Engineering

Cite this

The potential of waste microalgal hydrolysate for power generation in enzymatic fuel cell. / Lee, Ja Hyun; Kim, Dong Sup; Yang, Ji Hyun; Yoo, Hah Young; Han, Sung Ok; Lee, Jinyoung; Park, Chulhwan; Kim, Seung Wook.

In: Journal of Cleaner Production, Vol. 187, 20.06.2018, p. 903-909.

Research output: Contribution to journalArticle

Lee, Ja Hyun ; Kim, Dong Sup ; Yang, Ji Hyun ; Yoo, Hah Young ; Han, Sung Ok ; Lee, Jinyoung ; Park, Chulhwan ; Kim, Seung Wook. / The potential of waste microalgal hydrolysate for power generation in enzymatic fuel cell. In: Journal of Cleaner Production. 2018 ; Vol. 187. pp. 903-909.
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AU - Kim, Dong Sup

AU - Yang, Ji Hyun

AU - Yoo, Hah Young

AU - Han, Sung Ok

AU - Lee, Jinyoung

AU - Park, Chulhwan

AU - Kim, Seung Wook

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AB - The purpose of this study is to generate power by using the waste hydrolysate from microalgal extracts (AH), substrates of enzymatic fuel cell (EFC), and analyze the effects of microalgal hydrolysate containing a neutralizing agent on EFC. The effect of different dilute acids on extraction of microalgae was also investigated. The maximum concentration (∼5 g/L) of extraction was achieved for Chlorella pyrenoiudosa under the optimum conditions (2% hydrochloric acid and 100 g/L biomass loading). In order to investigate the effects of various neutralization agents used for AH on the EFC system, CV and EIS were investigated. Higher current and lower resistance values appeared during the neutralization using KOH. Maximum power density of 3637 μW/cm2 was obtained for the EFC system, 6.59 folds higher than the control. The result implies that AH used as a substrate has a significant influence on the power generation in the EFC system.

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