Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
South East Water, Frankston, Victoria, 3199, Australia; ARC Training Centre on Advance Transformation of Australia's Biosolids Resources, RMIT University, Bundoora, 3083, Australia.
Chemosphere. 2021 Sep;279:130557. doi: 10.1016/j.chemosphere.2021.130557. Epub 2021 Apr 12.
There are several recent reviews published in the literature on hydrothermal carbonization, liquefaction and supercritical water gasification of lignocellulosic biomass and algae. The potential of hydrochar, bio-oil or synthesis gas production and applications have also been reviewed individually. The comprehensive review on the hydrothermal treatment of wet wastes (such as municipal solid waste, food waste, sewage sludge, algae) covering carbonization, liquefaction and supercritical water gasification, however, is missing in the literature which formed the basis of the current review paper. The current paper critically reviews the literature around the full spectrum of hydrothermal treatment for wet wastes and establishes a good comparison of the different hydrothermal treatment options for managing wet waste streams. Also, the role of catalysts as well as synthesis of catalysts using hydrothermal treatment of biomass has been critically reviewed. For the first time, efforts have also been made to summarize findings on modelling works as well as techno-economic assessments in the area of hydrothermal treatments of wet wastes. The study concludes with key findings, knowledge gaps and future recommendations to improve the productivity of hydrothermal treatment of wet wastes, helping improve the commercial viability and environmental sustainability.
有几篇关于木质纤维素生物质和藻类的水热碳化、液化和超临界水气化的文献最近发表了综述。水热炭、生物油或合成气的生产和应用也分别进行了综述。然而，文献中缺少对湿废物（如城市固体废物、食物废物、污水污泥、藻类）的水热处理的全面综述，涵盖碳化、液化和超临界水气化，这也是本综述论文的基础。目前的论文对湿废物的全范围水热处理的文献进行了批判性回顾，并对不同的湿废物处理选择进行了很好的比较。此外，还对催化剂的作用以及使用生物质的水热处理合成催化剂进行了批判性的回顾。这也是首次努力总结水热处理湿废物领域的建模工作和技术经济评估的研究结果。该研究最后提出了主要发现、知识空白和未来建议，以提高湿废物水热处理的生产力，帮助提高商业可行性和环境可持续性。
