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

doi:10.1016/j.jclepro.2018.03.250

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 journal › Article › peer-review

8 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 language	English
Pages (from-to)	903-909
Number of pages	7
Journal	Journal of Cleaner Production
Volume	187
DOIs	https://doi.org/10.1016/j.jclepro.2018.03.250
Publication status	Published - 2018 Jun 20

Bibliographical note

Funding Information:
This work was supported by Industrial Strategic Technology Development Program ( 10051513 ) funded by the Ministry of Trade, Industry & Energy (MI, Korea) and Kwangwoon University (2018).

Publisher Copyright:
© 2018 Elsevier Ltd

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

Keywords

Enzymatic fuel cell
Extraction
Hydrolysate
Microalgae
Neutralization reagent

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Environmental Science
Strategy and Management
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jclepro.2018.03.250

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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.",

keywords = "Enzymatic fuel cell, Extraction, Hydrolysate, Microalgae, Neutralization reagent",

author = "Lee, {Ja Hyun} and Kim, {Dong Sup} and Yang, {Ji Hyun} and Yoo, {Hah Young} and Han, {Sung Ok} and Jinyoung Lee and Chulhwan Park and Kim, {Seung Wook}",

note = "Funding Information: This work was supported by Industrial Strategic Technology Development Program ( 10051513 ) funded by the Ministry of Trade, Industry & Energy (MI, Korea) and Kwangwoon University (2018). Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.jclepro.2018.03.250",

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AU - Lee, Ja Hyun

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

N1 - Funding Information: This work was supported by Industrial Strategic Technology Development Program ( 10051513 ) funded by the Ministry of Trade, Industry & Energy (MI, Korea) and Kwangwoon University (2018). Publisher Copyright: © 2018 Elsevier Ltd Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/6/20

Y1 - 2018/6/20

N2 - 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.

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.

KW - Enzymatic fuel cell

KW - Extraction

KW - Hydrolysate

KW - Microalgae

KW - Neutralization reagent

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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