Effect of feeding mode and dilution on the performance and microbial community population in anaerobic digestion of food waste

Jong Hun Park; Gopalakrishnan Kumar; Yeo Myeong Yun; Joong Chun Kwon; Sang Hyoun Kim

doi:10.1016/j.biortech.2017.07.025

Effect of feeding mode and dilution on the performance and microbial community population in anaerobic digestion of food waste

Jong Hun Park, Gopalakrishnan Kumar, Yeo Myeong Yun, Joong Chun Kwon, Sang Hyoun Kim

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

The effect of feeding mode and dilution was studied in anaerobic digestion of food waste. An upflow anaerobic digester with a settler was fed at six different organic loading rates (OLRs) from 4.6 to 8.6 kg COD/m³/d for 200 days. The highest methane productivity of 2.78 L CH₄/L/d was achieved at 8.6 kg COD/m³/d during continuous feeding of diluted FW. Continuous feeding of diluted food waste showed more stable and efficient performance than stepwise feeding of undiluted food waste. Sharp increase in propionate concentration attributed towards deterioration of the digester performances in stepwise feeding of undiluted food waste. Microbial communities at various OLRs divulged that the microbial distribution in the continuous feeding of diluted food waste was not significantly perturbed despite the increase of OLR up to 8.6 kg COD/m³/d, which was contrast to the unstable distribution in stepwise feeding of undiluted food waste at 6.1 kg COD/m³/d.

Original language	English
Pages (from-to)	134-140
Number of pages	7
Journal	Bioresource technology
Volume	248
DOIs	https://doi.org/10.1016/j.biortech.2017.07.025
Publication status	Published - 2018 Jan

Bibliographical note

Funding Information:
This work was supported by National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2017R1A2A2A07000900 ).

Publisher Copyright:
© 2017 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

Access to Document

10.1016/j.biortech.2017.07.025

Cite this

@article{826e17b8e93f46ec8b4151f4d2105d49,

title = "Effect of feeding mode and dilution on the performance and microbial community population in anaerobic digestion of food waste",

abstract = "The effect of feeding mode and dilution was studied in anaerobic digestion of food waste. An upflow anaerobic digester with a settler was fed at six different organic loading rates (OLRs) from 4.6 to 8.6 kg COD/m3/d for 200 days. The highest methane productivity of 2.78 L CH4/L/d was achieved at 8.6 kg COD/m3/d during continuous feeding of diluted FW. Continuous feeding of diluted food waste showed more stable and efficient performance than stepwise feeding of undiluted food waste. Sharp increase in propionate concentration attributed towards deterioration of the digester performances in stepwise feeding of undiluted food waste. Microbial communities at various OLRs divulged that the microbial distribution in the continuous feeding of diluted food waste was not significantly perturbed despite the increase of OLR up to 8.6 kg COD/m3/d, which was contrast to the unstable distribution in stepwise feeding of undiluted food waste at 6.1 kg COD/m3/d.",

author = "Park, {Jong Hun} and Gopalakrishnan Kumar and Yun, {Yeo Myeong} and Kwon, {Joong Chun} and Kim, {Sang Hyoun}",

note = "Funding Information: This work was supported by National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2017R1A2A2A07000900 ). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = jan,

doi = "10.1016/j.biortech.2017.07.025",

language = "English",

volume = "248",

pages = "134--140",

journal = "Bioresource technology",

issn = "0960-8524",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Effect of feeding mode and dilution on the performance and microbial community population in anaerobic digestion of food waste

AU - Park, Jong Hun

AU - Kumar, Gopalakrishnan

AU - Yun, Yeo Myeong

AU - Kwon, Joong Chun

AU - Kim, Sang Hyoun

N1 - Funding Information: This work was supported by National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2017R1A2A2A07000900 ). Publisher Copyright: © 2017 Elsevier Ltd

PY - 2018/1

Y1 - 2018/1

N2 - The effect of feeding mode and dilution was studied in anaerobic digestion of food waste. An upflow anaerobic digester with a settler was fed at six different organic loading rates (OLRs) from 4.6 to 8.6 kg COD/m3/d for 200 days. The highest methane productivity of 2.78 L CH4/L/d was achieved at 8.6 kg COD/m3/d during continuous feeding of diluted FW. Continuous feeding of diluted food waste showed more stable and efficient performance than stepwise feeding of undiluted food waste. Sharp increase in propionate concentration attributed towards deterioration of the digester performances in stepwise feeding of undiluted food waste. Microbial communities at various OLRs divulged that the microbial distribution in the continuous feeding of diluted food waste was not significantly perturbed despite the increase of OLR up to 8.6 kg COD/m3/d, which was contrast to the unstable distribution in stepwise feeding of undiluted food waste at 6.1 kg COD/m3/d.

AB - The effect of feeding mode and dilution was studied in anaerobic digestion of food waste. An upflow anaerobic digester with a settler was fed at six different organic loading rates (OLRs) from 4.6 to 8.6 kg COD/m3/d for 200 days. The highest methane productivity of 2.78 L CH4/L/d was achieved at 8.6 kg COD/m3/d during continuous feeding of diluted FW. Continuous feeding of diluted food waste showed more stable and efficient performance than stepwise feeding of undiluted food waste. Sharp increase in propionate concentration attributed towards deterioration of the digester performances in stepwise feeding of undiluted food waste. Microbial communities at various OLRs divulged that the microbial distribution in the continuous feeding of diluted food waste was not significantly perturbed despite the increase of OLR up to 8.6 kg COD/m3/d, which was contrast to the unstable distribution in stepwise feeding of undiluted food waste at 6.1 kg COD/m3/d.

UR - http://www.scopus.com/inward/record.url?scp=85023640286&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85023640286&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2017.07.025

DO - 10.1016/j.biortech.2017.07.025

M3 - Article

C2 - 28720277

AN - SCOPUS:85023640286

SN - 0960-8524

VL - 248

SP - 134

EP - 140

JO - Bioresource technology

JF - Bioresource technology

ER -

Effect of feeding mode and dilution on the performance and microbial community population in anaerobic digestion of food waste

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this