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EUBCE 2024 - Dinh Duc NGUYEN - Enhancing Anaerobic Digestion of High Concentrated Waste Activated Sludge Through Thermal Hydrolysis Pretreatment

Enhancing Anaerobic Digestion of High Concentrated Waste Activated Sludge Through Thermal Hydrolysis Pretreatment

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Biogas and biomethane production 1

Enhancing Anaerobic Digestion of High Concentrated Waste Activated Sludge Through Thermal Hydrolysis Pretreatment

Short Introductive summary

Sewage treatment faces a global challenge of excess sludge, demanding sustainable solutions. This study explores the impact of thermal hydrolysis pretreatment (THP) on concentrated waste-activated sludge (WAS). Employing varied conditions (100-220°C, 2-7% TS), analyses reveal that THP significantly enhances SCOD, VS solubilization, and methane production. Increasing THP temperatures correlate with elevated SCOD, NH4-N, PO4-P, VFAs, and decreased sludge viscosity and pH. Optimal methane production (349 L CH4/kg VS, 75.5% methane) occurs at 180°C, but higher THP temperatures pose risks. THP emerges as a promising, sustainable solution for sewage sludge treatment, addressing environmental concerns and maximizing energy potential.

Presenter

Moderator portrait

Dinh Duc NGUYEN

Kyonggi University, Environmental Energy & Engineering Dpt., REPUBLIC OF KOREA

Presenter's biography

Nguyen, a Prof. Kyonggi University, has extensive experience in industrial environmental engineering, has authored over 390 peer-reviewed articles and led numerous national research projects. His research focuses on anaerobic digestion, hybrid biological wastewater treatment, and novel materials

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

D.D. Nguyen, Kyonggi University, Suwon-si, REPUBLIC OF KOREA
S.Y. Jeong, Kyonggi University, Suwon-si, REPUBLIC OF KOREA
W.J. Chung, Kyonggi University, Suwon-si, REPUBLIC OF KOREA
S.S. Kim, Kyonggi University, Suwon-si, REPUBLIC OF KOREA
S.W. Chang, Kyonggi University, Suwon-si, REPUBLIC OF KOREA

Session reference: 4CV.5.2