Fe(NO₃)₃ was selected as a typical nitrate (5, 10 wt.%) to analyze its effects on the hydrothermal carbonization (HTC) of sewage sludge (SS). Enhancing hydrolysis was a key step to improving dehydration and decarboxylation of SS HTC. Fe(NO₃)₃ could notably decrease the total organic carbon, ammonia nitrogen, and total nitrogen of the aqueous phase and elemental content of the hydrochar especially produced at high temperatures. Formation Fe₂O₃ could also catalyze hydrochar combustion. At different HTC temperatures, the difference between dehydration and decarboxylation could also be observed. The results would give more help to the treatment of protein-rich organic waste, particular using HTC method.

选择Fe(NO ₃ ) ₃作为典型的硝酸盐(5, 10 wt.%)来分析其对污水污泥(SS)的水热碳化(HTC)的影响。增强水解是改善 SS HTC 脱水和脱羧的关键步骤。Fe(NO ₃ ) ₃可以显着降低水相的总有机碳、氨氮和总氮以及特别是在高温下产生的水相的元素含量。地层 Fe ₂ O ₃也可以催化氢化碳燃烧。在不同的 HTC 温度下，还可以观察到脱水和脱羧之间的差异。该结果将为处理富含蛋白质的有机废物提供更多帮助，尤其是使用 HTC 方法。