Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework

Ayesha Rafique; Dharmappa Hagare; Zuhaib Siddiqui

doi:10.1007/978-3-032-18708-6_70

Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework

School of Engineering

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

Abstract

Effective management of the organic fraction of municipal solid waste, particularly food and garden organics (FOGO), is critical for reducing carbon emissions associated with landfill disposal. To support circular economy goals, there is a growing need to assess the bioenergy potential of source-separated FOGO under high-solids anaerobic digestion (AD) conditions. This study investigates the application of dry anaerobic digestion for actual source-separated municipal FOGO in a continuous stirred tank reactor with prime focus on rapid acclimation and process stability. During the start-up phase, the system exhibited a steady improvement in performance, with daily biogas production increasing from 840 to 4912 NmL/d and methane concentration rising from 24.1% to 55.3%. The gradual adjustment of OLR, along with stable pH, alkalinity, and total ammonical nitrogen, supported process stability and efficient methane generation, strengthening the efficiency of dry AD of FOGO using continuous operation.

Original language	English
Title of host publication	4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025
Editors	Ataur Rahman, Taha B. M. J. Ouarda, Muhammad Muhitur Rahman, Dharma Hagare, Zuhaib Siddiqui
Place of Publication	Switzerland
Publisher	Springer
Pages	800-806
Number of pages	7
ISBN (Electronic)	9783032187086
ISBN (Print)	9783032187079
DOIs	https://doi.org/10.1007/978-3-032-18708-6_70
Publication status	Published - 2026
Event	International Conference on Water and Environmental Engineering - Sydney, Australia Duration: 19 Nov 2025 → 21 Nov 2025 Conference number: 4th

Publication series

Name	Lecture Notes in Civil Engineering
Volume	822 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	International Conference on Water and Environmental Engineering
Abbreviated title	iCWEE
Country/Territory	Australia
City	Sydney
Period	19/11/25 → 21/11/25

Keywords

CSTR
dry anaerobic digestion
FOGO
municipal organic waste
start up
waste-to-energy

Access to Document

10.1007/978-3-032-18708-6_70

Cite this

Rafique, A., Hagare, D., & Siddiqui, Z. (2026). Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework. In A. Rahman, T. B. M. J. Ouarda, M. Muhitur Rahman, D. Hagare, & Z. Siddiqui (Eds.), 4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025 (pp. 800-806). (Lecture Notes in Civil Engineering; Vol. 822 LNCE). Springer. https://doi.org/10.1007/978-3-032-18708-6_70

Rafique, Ayesha ; Hagare, Dharmappa ; Siddiqui, Zuhaib. / Dry anaerobic digestion of municipal FOGO waste : reactor acclimatisation and bioenergy potential in a circular economy framework. 4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025. editor / Ataur Rahman ; Taha B. M. J. Ouarda ; Muhammad Muhitur Rahman ; Dharma Hagare ; Zuhaib Siddiqui. Switzerland : Springer, 2026. pp. 800-806 (Lecture Notes in Civil Engineering).

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title = "Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework",

abstract = "Effective management of the organic fraction of municipal solid waste, particularly food and garden organics (FOGO), is critical for reducing carbon emissions associated with landfill disposal. To support circular economy goals, there is a growing need to assess the bioenergy potential of source-separated FOGO under high-solids anaerobic digestion (AD) conditions. This study investigates the application of dry anaerobic digestion for actual source-separated municipal FOGO in a continuous stirred tank reactor with prime focus on rapid acclimation and process stability. During the start-up phase, the system exhibited a steady improvement in performance, with daily biogas production increasing from 840 to 4912 NmL/d and methane concentration rising from 24.1\% to 55.3\%. The gradual adjustment of OLR, along with stable pH, alkalinity, and total ammonical nitrogen, supported process stability and efficient methane generation, strengthening the efficiency of dry AD of FOGO using continuous operation.",

keywords = "CSTR, dry anaerobic digestion, FOGO, municipal organic waste, start up, waste-to-energy",

author = "Ayesha Rafique and Dharmappa Hagare and Zuhaib Siddiqui",

year = "2026",

doi = "10.1007/978-3-032-18708-6\_70",

language = "English",

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Rafique, A, Hagare, D & Siddiqui, Z 2026, Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework. in A Rahman, TBMJ Ouarda, M Muhitur Rahman, D Hagare & Z Siddiqui (eds), 4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025. Lecture Notes in Civil Engineering, vol. 822 LNCE, Springer, Switzerland, pp. 800-806, International Conference on Water and Environmental Engineering, Sydney, Australia, 19/11/25. https://doi.org/10.1007/978-3-032-18708-6_70

Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework. / Rafique, Ayesha; Hagare, Dharmappa ; Siddiqui, Zuhaib.
4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025. ed. / Ataur Rahman; Taha B. M. J. Ouarda; Muhammad Muhitur Rahman; Dharma Hagare; Zuhaib Siddiqui. Switzerland: Springer, 2026. p. 800-806 (Lecture Notes in Civil Engineering; Vol. 822 LNCE).

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

TY - GEN

T1 - Dry anaerobic digestion of municipal FOGO waste

T2 - International Conference on Water and Environmental Engineering

AU - Rafique, Ayesha

AU - Hagare, Dharmappa

AU - Siddiqui, Zuhaib

N1 - Conference code: 4th

PY - 2026

Y1 - 2026

N2 - Effective management of the organic fraction of municipal solid waste, particularly food and garden organics (FOGO), is critical for reducing carbon emissions associated with landfill disposal. To support circular economy goals, there is a growing need to assess the bioenergy potential of source-separated FOGO under high-solids anaerobic digestion (AD) conditions. This study investigates the application of dry anaerobic digestion for actual source-separated municipal FOGO in a continuous stirred tank reactor with prime focus on rapid acclimation and process stability. During the start-up phase, the system exhibited a steady improvement in performance, with daily biogas production increasing from 840 to 4912 NmL/d and methane concentration rising from 24.1% to 55.3%. The gradual adjustment of OLR, along with stable pH, alkalinity, and total ammonical nitrogen, supported process stability and efficient methane generation, strengthening the efficiency of dry AD of FOGO using continuous operation.

AB - Effective management of the organic fraction of municipal solid waste, particularly food and garden organics (FOGO), is critical for reducing carbon emissions associated with landfill disposal. To support circular economy goals, there is a growing need to assess the bioenergy potential of source-separated FOGO under high-solids anaerobic digestion (AD) conditions. This study investigates the application of dry anaerobic digestion for actual source-separated municipal FOGO in a continuous stirred tank reactor with prime focus on rapid acclimation and process stability. During the start-up phase, the system exhibited a steady improvement in performance, with daily biogas production increasing from 840 to 4912 NmL/d and methane concentration rising from 24.1% to 55.3%. The gradual adjustment of OLR, along with stable pH, alkalinity, and total ammonical nitrogen, supported process stability and efficient methane generation, strengthening the efficiency of dry AD of FOGO using continuous operation.

KW - CSTR

KW - dry anaerobic digestion

KW - FOGO

KW - municipal organic waste

KW - start up

KW - waste-to-energy

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DO - 10.1007/978-3-032-18708-6_70

M3 - Conference Paper

AN - SCOPUS:105031902599

SN - 9783032187079

T3 - Lecture Notes in Civil Engineering

SP - 800

EP - 806

BT - 4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025

A2 - Rahman, Ataur

A2 - Ouarda, Taha B. M. J.

A2 - Muhitur Rahman, Muhammad

A2 - Hagare, Dharma

A2 - Siddiqui, Zuhaib

PB - Springer

CY - Switzerland

Y2 - 19 November 2025 through 21 November 2025

ER -

Rafique A, Hagare D , Siddiqui Z. Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework. In Rahman A, Ouarda TBMJ, Muhitur Rahman M, Hagare D, Siddiqui Z, editors, 4th International Conference on Water and Environmental Engineering: Proceedings of iCWEE 2025. Switzerland: Springer. 2026. p. 800-806. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-032-18708-6_70

Dry anaerobic digestion of municipal FOGO waste: reactor acclimatisation and bioenergy potential in a circular economy framework

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