利用水热技术直接腐殖化生物废物：综述,Science of the Total Environment

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利用水热技术直接腐殖化生物废物：综述
Science of the Total Environment ( IF 8.2 ) Pub Date : 2023-11-03 , DOI: 10.1016/j.scitotenv.2023.168232
Yuchao Shao ₁ , Zhihua Li ₂ , Yuyang Long ₃ , Jun Zhao ₄ , Weizhong Huo ₁ , Zhangrui Luo ₁ , Wenjing Lu ₁

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与传统的煤基腐殖酸提取工艺相比，生物废物的水热腐殖化更符合碳中和和可持续发展的目标。本文对生物废物热液腐殖化的当前进展进行了全面的回顾。对不同生物废物来源的热液腐植酸（HHA）进行比较，发现其疏水性、含氧官能团含量和结构特征存在显着差异。分析了反应温度、停留时间、pH和催化剂作用等关键参数对HHA产率的影响。阐明了生物废物及其主要成分转化为 HHA 的途径。煤类水热炭显示出通过水热处理生产HHA的巨大潜力，HHA选择性超过65%。HHA 在农业和环境修复方面也表现出良好的性能，提供与商业腐植酸相当的价值。未来的研究应集中于建立水热条件与生物废物腐殖化效率之间的相关性，从而促进评估效率的预测模型的开发。此外，探索具有多种化学特性的水热合成HHA的应用价值将指导水热条件的优化和合适原料的选择。

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Direct humification of biowaste with hydrothermal technology: A review

Hydrothermal humification of biowaste, in comparison to the traditional coal-based humic acid extraction process, better aligns with the goals of carbon neutrality and sustainability. This article provided a comprehensive review on the current advancements in hydrothermal humification of biowaste. Hydrothermal humic acid (HHA) derived from different biowaste sources was compared, exhibiting significant differences in their hydrophobicity, oxygen-containing functional group content, and structural characteristics. The influence of key parameters, including reaction temperature, residence time, pH and the action of catalysts on HHA yield was analyzed. The pathways through which biowaste and its major components transform into HHA were elucidated. Coal-like hydrochar has shown significant potential for producing HHA through hydrothermal treatment, with HHA selectivity exceeding 65 %. HHA also exhibits promising performance in agriculture and environmental remediation, offering comparable value to commercial humic acid. Future research should concentrate on establishing the correlation between hydrothermal conditions and the efficiency of biowaste humification, thereby facilitating the development of a predictive model for assessing efficiency. Additionally, exploring the application value of hydrothermal-synthesized HHA with diverse chemical characteristics will guide the optimization of hydrothermal conditions and selection of suitable feedstock.

更新日期：2023-11-03

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