Hydrothermal carbonization (HTC) may be considered a promising process for the conversion of sewage sludge into valuable products such as fuel, sorbent materials or amendment. In this study the optimization of HTC of sewage sludge from urban wastewater treatment was conducted by using the Response Surface Methodology (RSM) approach for studying the effects of temperature, residence time and solid content loading. The hydrochar produced by hydrothermal carbonization of sewage sludge under different reaction conditions was characterized in term of physical, chemical, and morphologic properties. The HTC process enhanced dewaterability, higher heating value and C content of the raw material, offering a promising alternative in the management of sewage sludge.
Hydrothermal Carbonization of Sewage Sludge: Process Optimization by Response Surface Methodology
Monica Puccini
;Andrea Luca Tasca;Anna Raspolli Galletti;Sandra Vitolo;
2019-01-01
Abstract
Hydrothermal carbonization (HTC) may be considered a promising process for the conversion of sewage sludge into valuable products such as fuel, sorbent materials or amendment. In this study the optimization of HTC of sewage sludge from urban wastewater treatment was conducted by using the Response Surface Methodology (RSM) approach for studying the effects of temperature, residence time and solid content loading. The hydrochar produced by hydrothermal carbonization of sewage sludge under different reaction conditions was characterized in term of physical, chemical, and morphologic properties. The HTC process enhanced dewaterability, higher heating value and C content of the raw material, offering a promising alternative in the management of sewage sludge.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
