Details

Autor(en) / Beteiligte

• Xu, Zhi-Xiang
• Shan, Ya-Qi
• Zhang, Ze
• Deng, Xiao-Qiang
• Yang, Yong
• Luque, Rafael
• Duan, Pei-Gao

Titel

Hydrothermal carbonization of sewage sludge: effect of inorganic salts on hydrochar's physicochemical properties

Ist Teil von

• Green chemistry : an international journal and green chemistry resource : GC, 2020-10, Vol.22 (2), p.71-722

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• NaCl and (NH 4 ) 2 SO 4 were selected as typical inorganic salts (10 wt% addition) in order to analyze their effects on the hydrothermal carbonization (HTC) of sewage sludge (SS). Results indicated that both salts could be adsorbed on the surface of hydrochar, resulting in amounts of hydrochar increasing and potentially serious nitrogen and chlorine issues upon employing SS hydrochar as solid fuel. NaCl and (NH 4 ) 2 SO 4 could act as catalyst to promote hydrolysis and carbonization of SS, with (NH 4 ) 2 SO 4 participating in the carbonization of SS. During combustion, Cl decreased the thermal decomposition temperature of hydrochar. The reported results can provide information to optimize the use of chloride salts and NH 4 + concentration for increasingly efficient HTC processes. NaCl and (NH 4 ) 2 SO 4 were selected as typical inorganic salts (10 wt% addition) in order to analyze their effects on the hydrothermal carbonization (HTC) of sewage sludge (SS).