Centre for Energy and Environment, Malaviya National Institute of Technology Jaipur, Jaipur 302017, Rajasthan, India.
Hybred Energy Solutions Private Limited, Gift City, Gandhinagar 382007, Gujarat, India.
Bioresour Technol. 2022 Sep;360:127596. doi: 10.1016/j.biortech.2022.127596. Epub 2022 Jul 6.
Agricultural and food waste have become major issue affecting the environment and climate owing to growing population. However, such wastes have potential to produce renewable fuels which will help to meet energy demands. Numerous valorization pathways like anaerobic digestion, pyrolysis, composting and landfilling have been employed for treating such wastes. However, it requires integrated system that could utilize waste and promote circular bioeconomy. This review explores integration of anaerobic digestion and pyrolysis for treating agricultural and food waste. Proposed system examines the production of biochar and pyro-oil by pyrolysis of digestate. The use of this biochar for stabilizing anaerobic digestion process, biogas purification and soil amendment will promote the circular bioeconomy. Kinetic models and framework of techno-economic analysis of system were discussed and knowledge gaps have been identified for future research. This system will provide sustainable approach and offer carbon capture and storage in form of biochar in soil.
由于人口增长，农业和食品废弃物已成为影响环境和气候的主要问题。然而，这些废物具有生产可再生燃料的潜力，这将有助于满足能源需求。已经采用了许多增值途径，如厌氧消化、热解、堆肥和填埋，来处理这些废物。然而，这需要一个综合的系统，能够利用废物并促进循环生物经济。本综述探讨了将厌氧消化和热解结合起来处理农业和食品废物。所提出的系统检查了通过消化物的热解生产生物炭和热解油。生物炭用于稳定厌氧消化过程、沼气净化和土壤改良，将促进循环生物经济。讨论了动力学模型和系统技术经济分析框架，并确定了未来研究的知识空白。该系统将提供可持续的方法，并以生物炭的形式在土壤中提供碳捕获和储存。
