From urban trash to city cash: Technologies for sustainable development of cities through the valorisation of urban organic waste in Europe

Waste Management Bulletin Pub Date : 2025-06-09 DOI:10.1016/j.wmb.2025.100222

Jessica Frigerio , Stefano Bertacchi , Sara Mecca , Stefania Digiovanni , Tania Molteni , Valeria Mapelli , Luca Beverina , Marina Lotti , Edoardo Croci , Paola Branduardi , Massimo Labra

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Abstract

In recent years, the rising awareness towards sustainability led to a joint multilevel effort among policy makers, stakeholders, citizens and scientific researchers to decrease the urban impact on the environment. In this context, the organic fraction of municipal solid waste (OFMSW) is definitely relevant because of its impressive amount, but also for the issues related to traditional disposal processes (i.e. landfilling). For this reason, several physical–chemical and biotechnological treatments have been implemented to solve the problem of waste storage, while producing new value. In addition, new technologies have been studied to fully exploit the potential of OFSMW, especially the material which could be easily sorted. This review aims to offer a comprehensive overview of the well-established and developing technologies for the valorisation of OFMSW, with an analysis of their benefits and drawbacks, in addition to interesting insights into the good practices already implemented in the European scenario.

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从城市垃圾到城市现金：通过欧洲城市有机废物的增值实现城市可持续发展的技术

近年来，对可持续发展的认识不断提高，促使决策者、利益相关者、公民和科研人员在多个层面共同努力，减少城市对环境的影响。在这种情况下，城市固体废物的有机部分（OFMSW）绝对是相关的，因为它的数量令人印象深刻，但也与传统处理过程（即堆填）有关。为此，一些物理化学和生物技术处理已被实施，以解决废物储存问题，同时产生新的价值。此外，人们还研究了新技术，以充分发挥OFSMW的潜力，特别是易于分类的材料。本报告旨在全面概述现有的和正在发展中的OFMSW增值技术，分析其优缺点，以及对欧洲方案中已经实施的良好做法的有趣见解。

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Waste Management Bulletin

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