Prediction of bio-methane potential and two-stage anaerobic digestion of starfish

Dong Hoon Kim; Jaehwan Cha; Mo Kwon Lee; Hyun Woo Kim; Mi Sun Kim

doi:10.1016/j.biortech.2013.02.065

Prediction of bio-methane potential and two-stage anaerobic digestion of starfish

Dong Hoon Kim
, Jaehwan Cha
, Mo Kwon Lee
, Hyun Woo Kim
, Mi Sun Kim^*

^*Corresponding author for this work

Environmental Engineering

Korea Institute of Energy Research
Hanwha
Korea Institute of Industrial Technology
University of Science and Technology UST

Research output: Contribution to journal › Journal article › peer-review

21 Scopus citations

Abstract

The present work reports the first ever evaluation of the biological CH₄ potential (BMP) of starfish, classified as invasive species. Since starfish contain a large amount of inorganic matter, only the supernatant obtained through grinding and centrifugation was used for BMP test. By applying response surface methodology, the individual and interactive effects of three parameters, inoculum/substrate ratios, substrate concentrations, and buffer capacities on CH₄ production were investigated, and the maximum CH₄ yield of 334mL CH₄/g COD was estimated. In addition, continuous CH₄ production was attempted using a two-stage (acidogenic sequencing batch reactor+methanogenic up-flow anaerobic sludge blanket reactor (UASBr)) fermentation process. Acidification efficiency was maximized at 2days of hydraulic retention time with valerate, butyrate, and acetate as main acids, and these were converted to CH₄ with showing 296mL CH₄/g COD_added Overall, the two-stage fermentation process could convert 44% of organic content in whole starfish to CH₄.

Original language	English
Pages (from-to)	184-190
Number of pages	7
Journal	Bioresource Technology
Volume	141
DOIs	https://doi.org/10.1016/j.biortech.2013.02.065
State	Published - 2013.08

UN SDGs

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

SDG 6 Clean Water and Sanitation
SDG 15 Life on Land

Keywords

Biological methane potential (BMP)
Response surface methodology (RSM)
Starfish
Two-stage fermentation
Up-flow anaerobic sludge blanket reactor (UASBr)

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10.1016/j.biortech.2013.02.065

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@article{b3ba4df58266461d8daf997a97097505,

title = "Prediction of bio-methane potential and two-stage anaerobic digestion of starfish",

abstract = "The present work reports the first ever evaluation of the biological CH4 potential (BMP) of starfish, classified as invasive species. Since starfish contain a large amount of inorganic matter, only the supernatant obtained through grinding and centrifugation was used for BMP test. By applying response surface methodology, the individual and interactive effects of three parameters, inoculum/substrate ratios, substrate concentrations, and buffer capacities on CH4 production were investigated, and the maximum CH4 yield of 334mL CH4/g COD was estimated. In addition, continuous CH4 production was attempted using a two-stage (acidogenic sequencing batch reactor+methanogenic up-flow anaerobic sludge blanket reactor (UASBr)) fermentation process. Acidification efficiency was maximized at 2days of hydraulic retention time with valerate, butyrate, and acetate as main acids, and these were converted to CH4 with showing 296mL CH4/g CODadded Overall, the two-stage fermentation process could convert 44\% of organic content in whole starfish to CH4.",

keywords = "Biological methane potential (BMP), Response surface methodology (RSM), Starfish, Two-stage fermentation, Up-flow anaerobic sludge blanket reactor (UASBr)",

author = "Kim, \{Dong Hoon\} and Jaehwan Cha and Lee, \{Mo Kwon\} and Kim, \{Hyun Woo\} and Kim, \{Mi Sun\}",

year = "2013",

month = aug,

doi = "10.1016/j.biortech.2013.02.065",

language = "English",

volume = "141",

pages = "184--190",

journal = "Bioresource Technology",

issn = "0960-8524",

}

TY - JOUR

T1 - Prediction of bio-methane potential and two-stage anaerobic digestion of starfish

AU - Kim, Dong Hoon

AU - Cha, Jaehwan

AU - Lee, Mo Kwon

AU - Kim, Hyun Woo

AU - Kim, Mi Sun

PY - 2013/8

Y1 - 2013/8

N2 - The present work reports the first ever evaluation of the biological CH4 potential (BMP) of starfish, classified as invasive species. Since starfish contain a large amount of inorganic matter, only the supernatant obtained through grinding and centrifugation was used for BMP test. By applying response surface methodology, the individual and interactive effects of three parameters, inoculum/substrate ratios, substrate concentrations, and buffer capacities on CH4 production were investigated, and the maximum CH4 yield of 334mL CH4/g COD was estimated. In addition, continuous CH4 production was attempted using a two-stage (acidogenic sequencing batch reactor+methanogenic up-flow anaerobic sludge blanket reactor (UASBr)) fermentation process. Acidification efficiency was maximized at 2days of hydraulic retention time with valerate, butyrate, and acetate as main acids, and these were converted to CH4 with showing 296mL CH4/g CODadded Overall, the two-stage fermentation process could convert 44% of organic content in whole starfish to CH4.

AB - The present work reports the first ever evaluation of the biological CH4 potential (BMP) of starfish, classified as invasive species. Since starfish contain a large amount of inorganic matter, only the supernatant obtained through grinding and centrifugation was used for BMP test. By applying response surface methodology, the individual and interactive effects of three parameters, inoculum/substrate ratios, substrate concentrations, and buffer capacities on CH4 production were investigated, and the maximum CH4 yield of 334mL CH4/g COD was estimated. In addition, continuous CH4 production was attempted using a two-stage (acidogenic sequencing batch reactor+methanogenic up-flow anaerobic sludge blanket reactor (UASBr)) fermentation process. Acidification efficiency was maximized at 2days of hydraulic retention time with valerate, butyrate, and acetate as main acids, and these were converted to CH4 with showing 296mL CH4/g CODadded Overall, the two-stage fermentation process could convert 44% of organic content in whole starfish to CH4.

KW - Biological methane potential (BMP)

KW - Response surface methodology (RSM)

KW - Starfish

KW - Two-stage fermentation

KW - Up-flow anaerobic sludge blanket reactor (UASBr)

UR - https://www.scopus.com/pages/publications/84878932743

U2 - 10.1016/j.biortech.2013.02.065

DO - 10.1016/j.biortech.2013.02.065

M3 - Journal article

AN - SCOPUS:84878932743

SN - 0960-8524

VL - 141

SP - 184

EP - 190

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Prediction of bio-methane potential and two-stage anaerobic digestion of starfish

Abstract

UN SDGs

Keywords

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