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NaOH-Enhanced Wet Air Oxidation of Municipal Sludge for High-Quality Carbon Source Production

Authors: Kaiyu Fang,Yang Tong,Guodong Yao,Ningzheng Zhu,Limin Jin,Yangyuan Zhou,Jianfu Zhao
Publisher: MDPI AG
Publish date: 2025-1-26
ISSN: 2227-9717 DOI: 10.3390/pr13020341
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The SCOD and TCOD removal trends appear inconsistent with the claimed enhancement, and the absence of raw intensity values in the fluorescence data raises concerns about transparency. Additionally, the lack of statistical validation makes it difficult to assess the reliability of the findings. I encourage the authors to address these issues to strengthen the study’s credibility.

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2 weeks, 1 day ago

The study discusses the impact of NaOH on volatile fatty acids (VFAs) production, could the authors elaborate on the mechanisms driving the observed increase in acetic and isovaleric acid concentrations? Were specific degradation pathways analyzed to confirm these trends?

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