Published November 16, 2025 | Version v1
Conference paper Open

Two-Dimensional Modeling of Fixed-Bed Gasification of Sewage Sludge and Other Municipal Byproducts for Clean Energy Generation

  • 1. Future Energy Center, Mälardalen University, PO Box 883, SE- 721 23 Västerås, Sweden.
  • 2. RESET-ENERGY, Via Maestri del Lavoro, 15/17, 02100 Rieti, Italy
  • 3. RESET-ENERGY, Via Maestri del Lavoro, 15/17, 02100 Rieti, Italy.

Description

Sewage sludge, a byproduct of wastewater treatment processes, possesses a complex physicochemical composition, making it valuable yet challenging to manage. This study explores its conversion into renewable energy through modular syngas production systems, which can offer decentralized, cost-effective solutions for electricity, heat, and cooling. To accommodate diverse compositions and varying working conditions, a simplified two-dimensional model is developed to support design optimization of the gasifier. By combining data-driven (the partial least square method) and kinetic-based approaches, the proposed two-dimensional model captures local phenomena and their distribution inside the gasifier without introducing large computational costs.

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