Enhancement of Sewage Sludge Digestion by Co-digestion with Food Waste and Swine Waste

Yongtae Ahn; Wontae Lee; Seoktae Kang; Sang Hyoun Kim

doi:10.1007/s12649-018-00558-w

Enhancement of Sewage Sludge Digestion by Co-digestion with Food Waste and Swine Waste

Yongtae Ahn, Wontae Lee, Seoktae Kang, Sang Hyoun Kim

Department of Civil and Environmental Engineering

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

15 Citations (Scopus)

Abstract

The anaerobic co-digestion of sewage sludge and other organic waste is an attractive method for both waste treatment and biogas production. In this study, we examined the optimal substrate mixing ratio in co-digestion of sewage sludge, swine waste, and food waste using the response surface methodology. The single digestion of sewage sludge produced 138 mL CH₄/g total solids (TS) with 35% chemical oxygen demand removal. The co-digestion with food waste and swine waste increased the methane yield to 294 mL/g TS under the optimal mixing ratio of 1:0.39:1 (sewage sludge:food waste:swine waste). The statistical analysis of the experimental data indicated a synergistic effect in the mixing of food waste and swine waste. This study showed that co-digestion of the organic wastes would be a feasible and economic approach to retrofit conventional anaerobic digesters.

Original language	English
Pages (from-to)	2421-2430
Number of pages	10
Journal	Waste and Biomass Valorization
Volume	11
Issue number	6
DOIs	https://doi.org/10.1007/s12649-018-00558-w
Publication status	Published - 2020 Jun 1

Bibliographical note

Funding Information:
Acknowledgements The authors would like to acknowledge the financial support of National Research Foundation under “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043150) of the Ministry of Science and ICT, Republic of Korea.

Publisher Copyright:
© 2019, Springer Nature B.V.

All Science Journal Classification (ASJC) codes

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

10.1007/s12649-018-00558-w

Cite this

@article{c8f1d443edc246c4b8ad930a345f9a83,

title = "Enhancement of Sewage Sludge Digestion by Co-digestion with Food Waste and Swine Waste",

abstract = "The anaerobic co-digestion of sewage sludge and other organic waste is an attractive method for both waste treatment and biogas production. In this study, we examined the optimal substrate mixing ratio in co-digestion of sewage sludge, swine waste, and food waste using the response surface methodology. The single digestion of sewage sludge produced 138 mL CH4/g total solids (TS) with 35% chemical oxygen demand removal. The co-digestion with food waste and swine waste increased the methane yield to 294 mL/g TS under the optimal mixing ratio of 1:0.39:1 (sewage sludge:food waste:swine waste). The statistical analysis of the experimental data indicated a synergistic effect in the mixing of food waste and swine waste. This study showed that co-digestion of the organic wastes would be a feasible and economic approach to retrofit conventional anaerobic digesters.",

author = "Yongtae Ahn and Wontae Lee and Seoktae Kang and Kim, {Sang Hyoun}",

note = "Funding Information: Acknowledgements The authors would like to acknowledge the financial support of National Research Foundation under “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043150) of the Ministry of Science and ICT, Republic of Korea. Publisher Copyright: {\textcopyright} 2019, Springer Nature B.V.",

year = "2020",

month = jun,

day = "1",

doi = "10.1007/s12649-018-00558-w",

language = "English",

volume = "11",

pages = "2421--2430",

journal = "Waste and Biomass Valorization",

issn = "1877-2641",

publisher = "Springer Netherlands",

number = "6",

}

TY - JOUR

T1 - Enhancement of Sewage Sludge Digestion by Co-digestion with Food Waste and Swine Waste

AU - Ahn, Yongtae

AU - Lee, Wontae

AU - Kang, Seoktae

AU - Kim, Sang Hyoun

N1 - Funding Information: Acknowledgements The authors would like to acknowledge the financial support of National Research Foundation under “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043150) of the Ministry of Science and ICT, Republic of Korea. Publisher Copyright: © 2019, Springer Nature B.V.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - The anaerobic co-digestion of sewage sludge and other organic waste is an attractive method for both waste treatment and biogas production. In this study, we examined the optimal substrate mixing ratio in co-digestion of sewage sludge, swine waste, and food waste using the response surface methodology. The single digestion of sewage sludge produced 138 mL CH4/g total solids (TS) with 35% chemical oxygen demand removal. The co-digestion with food waste and swine waste increased the methane yield to 294 mL/g TS under the optimal mixing ratio of 1:0.39:1 (sewage sludge:food waste:swine waste). The statistical analysis of the experimental data indicated a synergistic effect in the mixing of food waste and swine waste. This study showed that co-digestion of the organic wastes would be a feasible and economic approach to retrofit conventional anaerobic digesters.

AB - The anaerobic co-digestion of sewage sludge and other organic waste is an attractive method for both waste treatment and biogas production. In this study, we examined the optimal substrate mixing ratio in co-digestion of sewage sludge, swine waste, and food waste using the response surface methodology. The single digestion of sewage sludge produced 138 mL CH4/g total solids (TS) with 35% chemical oxygen demand removal. The co-digestion with food waste and swine waste increased the methane yield to 294 mL/g TS under the optimal mixing ratio of 1:0.39:1 (sewage sludge:food waste:swine waste). The statistical analysis of the experimental data indicated a synergistic effect in the mixing of food waste and swine waste. This study showed that co-digestion of the organic wastes would be a feasible and economic approach to retrofit conventional anaerobic digesters.

UR - http://www.scopus.com/inward/record.url?scp=85059573658&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059573658&partnerID=8YFLogxK

U2 - 10.1007/s12649-018-00558-w

DO - 10.1007/s12649-018-00558-w

M3 - Article

AN - SCOPUS:85059573658

SN - 1877-2641

VL - 11

SP - 2421

EP - 2430

JO - Waste and Biomass Valorization

JF - Waste and Biomass Valorization

IS - 6

ER -

Enhancement of Sewage Sludge Digestion by Co-digestion with Food Waste and Swine Waste

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this