Citation Link: https://doi.org/10.1002/cite.202300080
Modeling of Gasification of Sewage Sludge for Phosphorus Recovery and Hydrogen Generation
Publication Type
Article
Subjects
Sewage sludge
Phosphorus
Waste management
Sewage
Environmental science
Enhanced biological phosphorus removal
Sewage sludge treatment
Sewage treatment
Chemistry
Activated sludge
Environmental engineering
Engineering
Date Issued
2023
Abstract
Due to the amendment of sewage sludge ordinance in Germany, phosphorus must be recovered from sewage sludge in the future. Previously developed phosphorus recycling processes are not economically viable due to high material and energetic expenditures. Gasification of dried sewage sludge enables the energetic utilization of sewage sludge and provides the energy for phosphorus recovery. The present paper focuses on thermodynamic modeling of the gasification system to demonstrate the potential for holistic utilization of dried sewage sludge as phosphorus fertilizer. The results shows that an energy self‐sufficient, optimized process can be realized for recovery of phosphorus by gasification and subsequent thermo‐chemical treatment of dried sewage sludge.
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