The 19th IWA Conference on Sludge Management
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Session Details

Oral PresentationB: Recycling and resource recovery

[4-1]Resource Valorization I: Thermal Treatment & Conversion

Wed. Oct 22, 2025 1:00 PM - 3:00 PM JST
Wed. Oct 22, 2025 4:00 AM - 6:00 AM UTC
Meeting Room G(4F Bldg.#1)
Chair: Prof. Masaki Takaoka, Kyoto University, Japan
1:00 PM - 1:20 PM JST(4:00 AM - 4:20 AM UTC)

[4-1-01]Historical trends, roles, and future challenges of sewage sludge thermal treatment in Japan

*Masaki Takaoka1, Junyeong Yoo1, Takaaki Mizuno2, Kenichi Sonoda3, Atsushi Ueda4, Fumiki Hosho5, Toyohisa Miyamoto6 (1. Kyoto University (Japan), 2. Takuma Co., Ltd. (Japan), 3. METAWATER Co., Ltd. (Japan), 4. TSUKISHIMA JFE AQUA SOLUTION CO., Ltd. (Japan), 5. KUBOTA Corporation (Japan), 6. Public Works Research Institute (Japan))
1:20 PM - 1:40 PM JST(4:20 AM - 4:40 AM UTC)

[4-1-02]Report on the Operation of Sewage Sludge Dryer
at Kahoku County City Clean Center

*Takumi Nakanishi1, Takaaki Sakaguchi1, Takaaki Mizuno1 (1. TAKUMA CO., LTD. (Japan))
1:40 PM - 2:00 PM JST(4:40 AM - 5:00 AM UTC)

[4-1-03]Development of Excess Electricity Generating Sludge Incineration System Utilizing Step Grate Stoker Furnace

*Takaaki Mizuno1, Toru Miyakawa1, Takanobu Hoshi2, Katsuyuki Shimokawa3, Haruo Miyake4, Ryuto Aoba5, Kazuyuki Oshita6, Masaki Takaoka6 (1. TAKUMA Co., Ltd. (Japan), 2. Nishihara Environment Co., Ltd. (Japan), 3. Wakayama City (Japan), 4. Japan Sewage Works Agency (Japan), 5. National Institute for Land and Infrastructure Management (Japan), 6. Kyoto University (Japan))
2:00 PM - 2:20 PM JST(5:00 AM - 5:20 AM UTC)

[4-1-04]Research on Technology to Reduce N2O Emission from Sludge Furnaces in Wastewater Trearment Plants

Hiroyuki Fujimoto1, *Mami Tomita1, Junichi Tajima2 (1. Japan Institute of Wastewater Engineering and Technology (Japan), 2. Kanadevia Corporation (Japan))
2:20 PM - 2:40 PM JST(5:20 AM - 5:40 AM UTC)

[4-1-05]Pyrocarbonisation of WWTP biosolids: Effect of operating conditions and feedstock properties on biochar quality and thermal balance of the process.

*Mathieu Haddad, Sid Ahmed KESSAS1, Helen Coarita Fernandez1, Hugues VANDEN BOSSCHE1 (1. SUEZ Engineering & Construction (France))
2:40 PM - 3:00 PM JST(5:40 AM - 6:00 AM UTC)

[4-1-06]Rethinking the sewage sludge valorisation options and pathways via pyrolysate upgrading:
an output-oriented analysis

*Siqi Xu1, Yadira Bajón Fernández1, Peter Winter2, Stuart Wagland1 (1. Cranfield University (UK), 2. Thames Water (UK))
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