Configuring municipal solid and liquid waste treatment plants into bio-refinery to achieve sustainable development goals

IF 3 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Journal of Material Cycles and Waste Management Pub Date : 2025-04-24 DOI:10.1007/s10163-025-02231-6

Gopalakrishnan Govindasamy, Praveen Kumar Jaya Balaji

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引用次数: 0

Abstract

Increased population and per capita consumption have resulted in an increase in resource depletion and waste generation, thus necessitating the reuse of generated waste for resource recovery to ensure sustainability and circular economy. Municipal solid waste (MSW) and municipal liquid waste (MLW) generated are abundant and inexhaustible biomass resources. The efficacy of wet waste to energy technologies, viz. hydrothermal liquefaction (HTL), anaerobic digestion (AD) and microbial electrolysis cell (MEC), and the influence of the process parameters in the treatment of MSW and MLW have been reviewed in this study. Solid-state anaerobic digestion (SSAD) in a continuous stirred tank reactor or plug flow reactor and thermophilic high-solids anaerobic digestion are the best systems, respectively, for energy recovery from organic fraction of municipal solid waste (OFMSW) and municipal sewage sludge generated in municipal wastewater treatment plants. A conceptual bio-refinery by deploying HTL, AD and MEC to process MLW alone and an integrated MSW and MLW treatment are proposed to produce biochar, biooil, biogas, biohydrogen and reusable water. This reduces the reliance on coal, oil, natural gas and fresh water and thus provides energy independence to nations and helps to achieve the United Nation’s sustainable development goals 11, 7 and 13.

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将城市固体和液体废物处理厂配置为生物炼油厂，以实现可持续发展目标

人口和人均消费的增加导致资源耗竭和废物产生的增加，因此必须重新利用产生的废物进行资源回收，以确保可持续性和循环经济。城市固体废物和城市液体废物是取之不尽、用之不竭的生物质资源。本文综述了水热液化（HTL）、厌氧消化（AD）和微生物电解池（MEC）等湿式垃圾能源化技术的效果，以及工艺参数对城市生活垃圾和MLW垃圾处理的影响。连续搅拌槽式反应器或塞流反应器中的固态厌氧消化（SSAD）和嗜热高固体厌氧消化分别是城市生活垃圾有机部分（OFMSW）和城市污水处理厂产生的城市污水污泥中能量回收的最佳系统。提出了利用HTL、AD和MEC单独处理MLW的概念性生物精炼厂，以及对MSW和MLW的综合处理，以生产生物炭、生物油、沼气、生物氢和可重复使用的水。这减少了对煤炭、石油、天然气和淡水的依赖，从而为各国提供了能源独立，并有助于实现联合国可持续发展目标11、7和13。

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来源期刊

Journal of Material Cycles and Waste Management 环境科学-环境科学

CiteScore

5.30

自引率

16.10%

发文量

205

审稿时长

4.8 months

期刊介绍： The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles. The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management. The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).