Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA最新文献

{"title":"A review on bridging the energy-waste nexus: The role of refuse-derived fuel in sustainable energy transitions in India.","authors":"Ateeb Hamdan, Shivani Bagade, Fathimathul Sabna, Roshan Wathore, Ankit Gupta, Debishree Khan","doi":"10.1177/0734242X261433851","DOIUrl":"10.1177/0734242X261433851","url":null,"abstract":"<p><p>This critical review examines the potential of refuse-derived fuel (RDF) from municipal solid waste (MSW) as a transformative solution for India's waste management and energy challenges. With rapid urbanization generating over 150,000 tons of MSW daily in India, RDF offers a dual benefit: reducing landfill dependency while providing an alternative fuel. Through an extensive analysis of peer-reviewed literature, government reports, and case studies from Indian and international waste-to-energy (WtE) facilities, this review evaluates current technological approaches, regulatory frameworks, and economic factors influencing RDF adoption in the Indian context. RDF can substitute significant share of fossil fuels in cement kilns and power plants while reducing greenhouse gas emissions compared to conventional landfilling. However, successful deployment faces significant barriers including feedstock heterogeneity, inadequate preprocessing infrastructure, inconsistent emission standards, and limited financial incentives. Addressing these challenges requires coordinated efforts: standardized quality protocols, robust regulatory frameworks, technological innovations for emission control, and policy-driven incentives such as carbon credits and subsidies. The review identifies critical gaps in India's RDF ecosystem and provides recommendations for integrating RDF into circular economy (CE) strategies. Key insights include the necessity of region-specific quality standards, investment in preprocessing infrastructure, and community engagement models that ensure sustainable waste segregation. By synthesizing evidence on RDF's technical viability, environmental benefits, and implementation challenges specific to India, this review serves as a resource for policymakers, researchers, and industries working toward sustainable WtE solutions.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1413-1435"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147978561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How does the choice of food waste collection strategy affect the environmental performance of the food waste system?","authors":"Kari-Anne Lyng, Fabiana Frota de Albuquerque Landi","doi":"10.1177/0734242X261436164","DOIUrl":"10.1177/0734242X261436164","url":null,"abstract":"<p><p>Separating food waste supports a more circular economy. As the most visible part of the value chain, the collection system plays a key role in waste management performance. This study quantifies the environmental impacts of various food waste collection methods using life cycle assessment, focusing on climate change and potential trade-offs across other impact categories. Two different treatment alternatives were explored: composting and anaerobic digestion (AD). The functional unit was defined as the management of the average amount of food waste generated per person during a year in Norway. The results show that the collection strategy affects both sorting rate and environmental performance. Climate change impacts range from -9.7 to -7.5 kg CO₂ eq./person/year for AD and between -6.3 and 2.5 kg CO₂ eq./person/year for composting. Collection in paper bags in separate containers results in the lowest climate change impact for both treatment pathways, but may increase other environmental impacts. For the AD pathway, there are relatively small differences between the results for the studied collection options. The use of paper bags, however, is likely to be the only option that eliminates the risk of plastic pollution in the soil from bags. The study identifies a potential \"separate container effect\": a higher separation rate is achieved with separate containers compared to the optical bag sorting system. This emphasizes how crucial the choice of collection method is for effective food waste management.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1531-1541"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13530350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147655149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"End-of-life motorcycle management towards emission reduction and waste control: Case study of Vietnam.","authors":"Nguyen Thi Nha Trang, Thanh-Thuy Nguyen, Yan Li","doi":"10.1177/0734242X261433320","DOIUrl":"10.1177/0734242X261433320","url":null,"abstract":"<p><p>Motorcycles are not only vital to transportation and economies in many Southeast Asia's countries but also cause substantial air pollution. As alternative electric mobility is increasingly promoted by countries, managing end-of-life (petrol) motorcycles (EoLMs) becomes more urgent. This article addresses the question: How will EoLMs be treated, transformed or disposed of? Vietnam, leading the region in motorcycle ownership, was selected as the case. The authors used a triangulation approach, combining literature review, site observations and semi-structured interviews to examine Vietnam's EoLM recycling management. Specifically, the article provided motorcycle-related estimations to fill the data gap, based on which numerical warnings on emissions from in-use EoLMs were generated to support the contemporary emission picture. Advantages and limitations of the current legislative framework and recycling system were identified. Finally, a tailored recycling management framework was proposed, incorporating mandatory emission testing, enhanced extended producer responsibility regulations and subsidies for the industry. This study contributes to the limited literature on EoLM management and provides policymakers with an interdisciplinary framework emphasizing stakeholders' collaboration.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1637-1649"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147990822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A participatory geographic information system-based route optimisation for decentralised municipal solid waste management system: A case study from a flood-prone town in Kerala, India.","authors":"Rakendu Suresh, Antony Gosh Zen Vadakkan, Arya P R, N C Narayanan","doi":"10.1177/0734242X261437538","DOIUrl":"10.1177/0734242X261437538","url":null,"abstract":"<p><p>Municipal solid waste management (MSWM) remains a critical challenge in India due to rapid urbanisation, increasing waste volumes, and limited institutional capacity. Although urban local bodies (ULBs) allocate up to 80% of their MSWM budgets to collection and transport, inefficiencies persist due to unoptimised routes and poor alignment with local conditions. Most geographic information system (GIS)-based optimisation models remain top-down, failing to reflect on-the-ground realities and are rarely implementable. This study presents a participatory GIS-based routing methodology for decentralised MSWM system in a flood-prone town in Kerala, India. It integrates standard geospatial data with tacit knowledge from ULB officials and frontline sanitation workers through participatory mapping and ground-truthing, producing spatial layers on waste generation, transport conditions, flood-prone roads, and existing collection clusters, pick-up points, and storage facilities. Based on this, the study proposes operational changes, including new pick-up points, mini-material collection facilities (intermediary storage hubs), and a three-tier vehicle system tailored to local constraints. ArcGIS Network Analyst is used to identify optimal routes, incorporating flood-prone roads as network barriers. Compared to the current system, the optimised plan is flood-resilient and achieves a 32% reduction in travel distance, 35% cut in fuel use and emissions, and a 62% increase in collection capacity and 100% household coverage, along with better working conditions. The study offers a scalable framework that merges technical optimisation with context specificity, enabling ULBs in resource-constrained settings to co-produce climate-resilient transport solutions.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1515-1530"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147985113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Informal e-waste management in Nigeria: A comprehensive analysis of practices, challenges, and opportunities for sustainable solutions towards a circular economy.","authors":"Innocent Chidi Nnorom, Ibukun Faluyi","doi":"10.1177/0734242X261435297","DOIUrl":"10.1177/0734242X261435297","url":null,"abstract":"<p><p>In Nigeria, e-waste management is predominantly handled by the informal sector, which relies on crude methods, causing environmental and health risks. E-waste Producer Responsibility Organization of Nigeria (EPRON) conducted a study focused on informal e-waste collection and management practices, aiming to inform the development of a sustainable, circular e-waste management system. The study surveyed 495 informal operators and found that most e-waste collectors are male (96.8%) with an average age of 33 years. Awareness of e-waste regulations is low, with 61.6% unaware of existing regulations and 58.2% unaware of the ban on e-waste imports and cathode-ray tube (CRT) devices. Despite this, 63.6% of collectors are aware of the importation of used electrical and electronic equipment, most of which is non-functional. House-to-house collection is the most common source of e-waste (55.2%), followed by shops (19.6%) and offices (14.1%). Televisions, mobile phones, freezers, and pressing irons are the most frequently collected items, and 84% of collectors compensate consumers for e-waste. Door-to-door collection is the preferred method for 54% of collectors, while only 11% collect from dumpsites. Items such as plastics, CRT glass, bulbs, and phone screens are rarely collected. Most collectors engage in pre-processing activities, using manual dismantling to recover valuable materials, with 44% transferring e-waste to major collection centres. However, 68% of collectors do not keep records while only 51.5% of collectors regularly use personal protective equipment. Improving informal e-waste management in Nigeria requires targeted awareness raising on the legal recognition of e-waste and the penalties associated with its indiscriminate handling. Improving collection infrastructure, designing improved incentives for adhering to formal collection and recycling channels, training of collectors, enforcing regulations, and collaborating with stakeholders are highly recommended.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1542-1555"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147655157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-pyrolysis of polyethylene terephthalate and epoxy resin waste: Does mixing influence process efficiency and product distribution?","authors":"Zhiyuan Song, Zelin Xu, Ying Xie, Jingxin Liu","doi":"10.1177/0734242X261434348","DOIUrl":"10.1177/0734242X261434348","url":null,"abstract":"<p><p>Polyethylene terephthalate (PET) and epoxy resin (ER) are commonly used polymers that are frequently combined in many applications, posing significant challenges for their separation and recycling. Pyrolysis is an effective technology for organic waste recycling by thermal processing, and the co-pyrolysis of composite materials or mixtures may offer potential advantages in improving pyrolysis efficiency and product values. The specific performance of PET-ER co-pyrolysis is not yet clear. This study aimed to elucidate this process through a comprehensive investigation of the pyrolysis process and product characteristics. Thermogravimetric-differential thermogravimetric analysis demonstrated an interaction between PET and ER during pyrolysis. For example, the residue yield and apparent activation energy of P8E2 (a mixture with PET-ER mass ratio of 8:2) decreased by 7.46% and 14.83 kJ·mol^-1, respectively, compared to the theoretical values. Pyrolysis experiments identified the suitable operating conditions for P8E2 as pyrolysis temperature of 450°C and holding time of 30 minutes. Gas chromatography-mass spectrometry analysis identified benzoic acid and its derivatives as the primary components of the pyrolysis oil, which suggests a radical-mediated mechanism and confirms the synergistic interactions between PET and ER, and combustible gases (CO and CH₄) were the main components in the gaseous product. The results of this study would provide valuable insights into the recycling of multicomponent plastic mixtures and contribute to the advancement of pyrolysis technology, offering practical implications for the treatment of complex organic solid waste.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1590-1602"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147680269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular bioeconomy valorisation of dairy waste: Optimised acid hydrolysis for resource recovery towards biostimulant production and plant response assessment.","authors":"Rafał Taf, Filip Gil, Alicja Wijatkowska, Dawid Skrzypczak, Małgorzata Mironiuk, Grzegorz Izydorczyk, Agnieszka Hojeńska, Małgorzata Bekieszczuk, Katarzyna Chojnacka","doi":"10.1177/0734242X261438683","DOIUrl":"10.1177/0734242X261438683","url":null,"abstract":"<p><p>Dairy industry waste is a stream within the agri-food sector that requires sustainable management solutions. It is also a significant source of valuable nutrients that can be effectively recovered and valorised through sustainable environmental technologies within a circular bio-based economy. This study presents a chemical valorisation approach to produce an amino acid-rich biostimulants from dairy industry waste. Acid hydrolysis parameters, including the proportion of the hydrolysing medium (<i>X</i>₁: 10-30%), acid concentration (<i>X</i>₂: 10-100%), and temperature (<i>X</i>₃: 20°C-100°C), were optimised using response surface methodology with a Box-Behnken design. Neutralised hydrolysates (pH ~5) yielded 15 suspensions, modelled by a second-order polynomial (<i>R</i>² = 0.9989). Optimal conditions (<i>X</i>₁: 10%, <i>X</i>₂: 10% H₂SO₄:H₃PO₄, <i>X</i>₃: 100°C) produced 64.5 g kg^-1 amino acids. Physicochemical and microbiological analyses confirmed a high nutrient load and significant microbial reduction (<1.00 × 10¹ CFU g^-1), ensuring environmental safety of the hydrolysates for agricultural application. Germination tests on cucumber (<i>Cornichon de Paris</i>) showed enhanced root development and biomass. The best formulation increased seedling fresh mass by 47% over the control and 27% over a commercial product. This valorisation strategy allows for effective recovery of resources while reducing the environmental burden of dairy waste and supporting the integration of industrial by-products into sustainable agricultural practices. This research highlights a path consistent with sustainable waste management in line with the circular economy.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1486-1502"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147731065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating automation into construction waste quantification: A review of digital innovations for sustainable resource management.","authors":"Moinul Haq, Osama Mohsen, Mohamed T Elnabwy, Pablo Martinez","doi":"10.1177/0734242X261441094","DOIUrl":"10.1177/0734242X261441094","url":null,"abstract":"<p><p>The construction sector is a major generator of solid waste, with construction and demolition waste (CDW) posing significant challenges to sustainable resource management. Accurate quantification is vital for achieving circular economy and waste reduction goals; however, traditional estimation methods remain manual, fragmented and inconsistent. This state-of-the-art review synthesizes developments in automation and digital technologies that are transforming CDW quantification and management. A total of 125 peer-reviewed articles published between 1993 and 2025 were systematically analysed to identify trends, methods and emerging tools. Advances across artificial intelligence, computer vision, building information modelling and the Internet of Things are categorized, focusing on automated waste recognition, volumetric estimation and real-time monitoring. Persistent challenges, including limited dataset diversity, model generalization, interoperability and implementation cost, are critically examined. By linking technological innovation with practical waste management, this review highlights how automation can enhance efficiency, traceability and sustainability in the construction industry's transition towards circular practices.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1308-1326"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13530366/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147731148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction: Improving the decision-making for sustainable demolition waste management by combining a BIM-based life cycle sustainability assessment framework and hybrid MCDA approach.","authors":"","doi":"10.1177/0734242X261462767","DOIUrl":"10.1177/0734242X261462767","url":null,"abstract":"","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1660"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148341874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the process performance of ballistic separators in packaging waste sorting plants using sensor-based process monitoring.","authors":"Alena Maria Spies, Tabea Scherling, Annika Ludes, Bastian Küppers, Nils Kroell, Karoline Raulf, Kathrin Greiff","doi":"10.1177/0734242X261433694","DOIUrl":"10.1177/0734242X261433694","url":null,"abstract":"<p><p>To effectively utilise secondary raw materials, pre-concentrates of defined quality are required. Packaging waste streams are treated in waste sorting plants, where different sorting operations are applied. Ballistic separators are frequently used to separate 2D and 3D materials during (pre)conditioning and therefore have a major influence on the overall process performance. Despite their widespread use, until now, few studies have examined how parameter settings affect the performance of ballistic separators. To assess and optimise process performance, we conducted a parameter study on packaging waste using an industrial-scale ballistic separator and near-infrared-based process monitoring. At 22.5 wt% 2D input content, we varied 2D material properties, paddle angle (15°, 17.5°, 20°), rotational speeds (<i>s</i>₁-<i>s</i>₅) and paddle types (45 mm, closed). All parameters showed significant effects on the process performance. In the material stream used, which contained a proportion of fine material, the 45 mm paddles demonstrated higher separation performance compared to the closed paddles. A specific rotational speed must be reached to achieve an effective separation efficiency. Beyond this, a further increase does not lead to measurable improvements. Two optimisation strategies were developed to determine process optima and enable the integration of the generated results into operational practice. Therefore, the results contribute to the optimisation and potential automation of ballistic separators and the overall improvement of packaging waste sorting plants.</p>","PeriodicalId":520825,"journal":{"name":"Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA","volume":" ","pages":"1603-1619"},"PeriodicalIF":4.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13530357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147655124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}