Waste Management Bulletin最新文献

{"title":"3D printing technology for valorization of food processing wastes and byproducts: A systematic review","authors":"Debapam Saha ,&nbsp;Mrutyunjay Padhiary ,&nbsp;Azmirul Hoque ,&nbsp;Gajendra Prasad","doi":"10.1016/j.wmb.2025.100192","DOIUrl":"10.1016/j.wmb.2025.100192","url":null,"abstract":"<div><div>It is estimated that over 1.3 billion tons of waste are generated annually from food processing, which poses significant environmental and economic challenges. This review delineates the potential of 3D printing technology in valorizing food waste and explores an achievable reduction of 40–60 % in waste disposal through product innovation. This method allows nutrient-rich waste materials like fruit peels, vegetable waste, shellfish shells, and cereal byproducts to be converted into edible and biodegradable packaging aligned with circular economy principles and sustainable food systems. Advances in 3D printing parameters, including optimized extrusion temperature and nozzle diameter, have been shown to improve efficiency by up to 30 % and the quality and integrity of the final product. Such applications are fiber-enriched snack foods and protein-enriched products with 20–35 % nutrient increases, along with biodegradable packaging that breaks down 50 % faster than conventional plastic. Case studies reveal that implementing such solutions by food manufacturers can generate as much as 25 % savings in waste management costs. These advancements are, however, challenged, especially concerning material variability, printability, and regulatory compliance. Existing studies have primarily focused on material formulation and extrusion properties, but gaps persist in large-scale implementation, standardization, and economic feasibility. Future research should emphasize AI-driven optimization to enhance printability by 15–20 %, explore novel biopolymer blends for improved mechanical properties, and integrate blockchain for enhanced traceability and transparency in waste valorization. A comprehensive understanding of the history of the development of the field and the issues it has not solved is important in accelerating the implementation of 3D printing in sustainable food waste management. This study concludes that 3D printing is a transformative approach to reducing food waste and advancing sustainability in the food and packaging sectors.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 4","pages":"Article 100192"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611260","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":"Optimizing drying of municipal dewatered sludge using heat-assisted microorganisms and pig manure addition: A process and economic analysis","authors":"Chencheng Wang ,&nbsp;Zhigang He ,&nbsp;Muhammad Usman ,&nbsp;Mohamed Gamal El-Din ,&nbsp;Zhigang Liu ,&nbsp;Zhijun Luo ,&nbsp;He Li ,&nbsp;Dandan Xiao ,&nbsp;Qunchao Qian ,&nbsp;Zhiren Wu","doi":"10.1016/j.wmb.2025.100193","DOIUrl":"10.1016/j.wmb.2025.100193","url":null,"abstract":"<div><div>Sludge drying is an important pretreatment step for municipal dewatered sludge (MDS) treatment and disposal, but the time-consuming and high cost of existing processes have hindered the development of MDS treatment and disposal. In this study, a novel sludge drying technology was proposed on the basis of the characteristics and treatment needs of MDS in China. Pig manure (PM) addition and multisource heat assistance together assisted hyperthermophilic bacteria in achieving rapid drying of MDS. Mechanical factors were optimized via orthogonal experiments, and the optimum PM addition ratio was determined. The relationship between energy input (generation) and output in the system was explored to reveal the reasons why the novel drying technology exhibited superiority. Compared with the traditional biological drying technique and the thermal drying technique, the novel technique has the advantages of high efficiency, time savings and low cost. After 24 h of drying, the moisture content, organic matter content and net calorific value on an air-dried basis (<em>Q</em>_{net, V,Mad}) of the dried products were 31.43 ± 0.91 %, 72.47 ± 1.89 % and 16.94 ± 0.35 MJ/kg, respectively, which met the requirements of heat recovery and utilization for subsequent thermal treatment. The energy input (generation) to the system exceeded the energy output, indicating that the drying process was positively spontaneous. Multisource heat assistance accounted for 81.6 % of the total generated (input) energy, and 86.43 % of the energy was used for moisture evaporation, indicating high energy utilization of the drying system. In addition, cost savings of US $11.46–16.84/ton (¥83-122.10/ton) were achieved when MDS was treated via the novel drying technology. Overall, the novel drying technology proposed in this study provides feasible, efficient and cost-saving pretreatment technology and ideas for MDS treatment and disposal engineering.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 4","pages":"Article 100193"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611261","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":"Al-anodizing waste as a supplementary cementitious material for 3D-printed Portland cement","authors":"Jairon Gomes da Silveira Júnior ,&nbsp;Rafael Dors Sakata ,&nbsp;Lucas Onghero ,&nbsp;Paulo Ricardo de Matos ,&nbsp;Erich David Rodríguez ,&nbsp;Lisandro Simão ,&nbsp;Antonio Pedro Novaes de Oliveira ,&nbsp;Ruan Carlos de Araújo Moura ,&nbsp;Carlos Eduardo Maduro de Campos ,&nbsp;José Renato de Castro Pessôa ,&nbsp;Marcelo Tramontin Souza","doi":"10.1016/j.wmb.2025.03.001","DOIUrl":"10.1016/j.wmb.2025.03.001","url":null,"abstract":"<div><div>This study investigates the use of Al-anodizing waste (AAW), a byproduct of the anodizing process for aluminum and its alloys, in cement composites designed for 3D printing applications. For cementitious materials to be suitable for 3D printing, they must maintain adequate stability to support overlapping layers while also exhibiting sufficient flowability and open time for effective pumping. The incorporation of AAW aims to improve the rheological properties of these mixtures, enhancing both their open time and buildability. To evaluate the potential of AAW in 3D printing cement composites, a comprehensive approach was adopted. This included rheological analysis, flow table testing, investigations into buildability, and assessments of mechanical performance. Additional techniques, such as isothermal calorimetry and in situ X-ray diffraction, were employed to examine the effect of AAW on the hydration kinetics of cement pastes. The findings highlighted several advantages of incorporating AAW into cement-based formulations, such as improved buildability, quick adjustments in rheological properties, prolonged open times, enhanced mechanical performance, cost-effectiveness, and increased sustainability by transforming a commonly discarded material into a valuable resource for civil construction.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 2","pages":"Pages 10-20"},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592074","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":"Optimization of arsenic removal from water using novel renewable adsorbents derived from orange peels","authors":"Roya Sadat Neisan ,&nbsp;Noori M. Cata Saady ,&nbsp;Carlos Bazan ,&nbsp;Sohrab Zendehboudi","doi":"10.1016/j.wmb.2025.02.006","DOIUrl":"10.1016/j.wmb.2025.02.006","url":null,"abstract":"<div><div>This study developed activated carbon from orange peels (ACOP) and modified ACOP with titanium dioxide (TiO₂) (ACOP-TiO₂), focusing on optimizing the adsorption capacity of ACOP-TiO₂ for arsenic removal from water. The developed adsorbent (ACOP-TiO₂) was prepared and characterized by Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), surface area analysis, and elemental analysis. The Brunauer-Emmett-Teller (BET) test demonstrated that the modification increased the surface area of ACOP-TiO₂ by 2.55 times greater than ACOP. Adsorption experiments were conducted using synthetic aqueous solutions of arsenic (As(V)), and the response surface methodology (RSM) incorporating central composite design (CCD) was employed for experimental optimization. The results indicated that ACOP-TiO₂ demonstrated efficient arsenic removal, with optimal pH identified at approximately 4.2. Increasing adsorbent dosage (0.025–0.4 g in 50 mL solution, corresponding to 0.5–8 g L^-1) positively influenced adsorption efficiency, while initial arsenic concentration (10–60 mg L^-1) directly correlated with adsorbent capacity, with a predicted optimum concentration of 50 mg L^-1. Contact time (0.4–6 h) exhibited minimal impact on adsorbent capacity within the experimental timeframe. Under the conditions of pH 4.2, an initial arsenic concentration of 50 mg L^-1, an adsorbent dose of 3.3 g L^-1 (0.165 g adsorbent/50 mL solution), and a contact time of 4.8 h, the maximum adsorbent capacity in arsenic removal for ACOP-TiO₂ was 10.91 mg g⁻¹. The intra-particle diffusion kinetic model and Temkin isotherm best described arsenic adsorption onto ACOP-TiO₂. This research contributes valuable insights into utilizing agricultural waste for water treatment, offering a sustainable and economical solution for arsenic removal.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 2","pages":"Pages 21-35"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621484","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":"Rapid on-site maturity and stability assessment of sewage sludge compost by mathematical treatment of UV and fluorescence spectroscopic data","authors":"Roland Redon ,&nbsp;Madi Guirema Abaker ,&nbsp;Michel Raynaud ,&nbsp;Pascale Prudent ,&nbsp;Stéphane Mounier ,&nbsp;Christian Martino ,&nbsp;Didier Gori ,&nbsp;Carine Demelas ,&nbsp;Frédéric Théraulaz","doi":"10.1016/j.wmb.2025.02.007","DOIUrl":"10.1016/j.wmb.2025.02.007","url":null,"abstract":"<div><div>Co-composting of sewage sludge with green waste is the main way of valorisation of organic wastes. The compost maturation process leads to production of humified and stabilized organic matter well-used for soil amendment due to its soil structuring qualities and nutrient richness. That is why the knowledge of product quality in terms of organic matter stability and maturity of compost is imperative. Unfortunately, there is a lack of quick and easy solutions available for composting plant managers who usually need complex and time consuming laboratory measurements for determination of biological or chemical parameters, and more robust on-site methods<em>.</em> Compost evolution monitoring needs actual determination of several biological and physico-chemical parameters as the C/N ratio, the ISMO (Organic Matter Stability Index), related to organic matter stability, and the germination test related to compost maturity. The aim of this work is the estimation of these three parameters using a Partial Least Squares regression (PLS1) based on UV and fluorescence spectroscopic data and pH from compost water extracts at various steps of composting process, ending to a mathematical linear model. Results show average relative prediction errors of 14.76 %, 16.35 % and 15.38 % for C/N ratio, ISMO and germination test results, respectively. These satisfactory results confirm potentiality of this approach for a rapid and simple on-site estimation of the organic matter stabilization and compost maturation, for qualification of the end-product before its use.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 2","pages":"Pages 1-9"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551935","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":"Profiling PBDE emissions from coastal landfills: Impact of waste management practices","authors":"Priyam Saxena ,&nbsp;Xing Song ,&nbsp;Baiyu Zhang ,&nbsp;Atanu Sarkar ,&nbsp;Gopal Achari","doi":"10.1016/j.wmb.2025.02.005","DOIUrl":"10.1016/j.wmb.2025.02.005","url":null,"abstract":"<div><div>This study investigates the influence of landfill management practices on the release of polybrominated diphenyl ethers (PBDEs) from coastal landfills in Newfoundland, Canada. By comparing PBDE congener profiles in leachate from a modern landfill with advanced treatment systems and a legacy landfill with limited infrastructure, we demonstrate the critical role of modern waste management practices in mitigating PBDE contamination. Both sites showed PBDE contamination, but the legacy landfill exhibited greater variability in congener types and concentrations. BDE-47 emerged as the predominant congener at both sites, with episodic spikes at the legacy landfill reaching 14.39 ng/L, alongside the presence of congeners like BDE-77, BDE-100, and BDE-183. GIS analysis revealed PBDE dispersion into nearby surface waters, posing risks to marine ecosystems. Landfill operator surveys provided insights into operational challenges, including limited e-waste diversion, fire risks from batteries, and inadequate leachate treatment at the legacy site, contributing to its vulnerability. This study underscores the need for proactive PBDE management in coastal landfills. The adoption of modern landfill technologies and enhanced e-waste diversion programs is vital for reducing contamination and protecting marine environments. These findings highlight the importance of sustainable waste management practices in safeguarding coastal ecosystems.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 391-401"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527329","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":"Sustainable recovery of rare Earth elements from industrial waste: A path to circular economy and environmental health","authors":"Pranav Prashant Dagwar ,&nbsp;Syed Suffia Iqbal ,&nbsp;Deblina Dutta","doi":"10.1016/j.wmb.2025.02.004","DOIUrl":"10.1016/j.wmb.2025.02.004","url":null,"abstract":"<div><div>Rare earth elements (REEs) play a vital role in digitalization and industrialization. Naturally occurring in bastnasite, monazite, and xenotime, REEs are primarily concentrated in China, Australia, and the USA, leading to dependence on secondary sources. Recycling REEs from industrial waste such as E-waste, wastewater, red mud, slag, and fly ash offers a sustainable, low-emission, and energy-efficient solution. Advanced methods, including bio-metallurgy, have optimized recovery, achieving 80–95% efficiency for elements like Yttrium, Cerium, Neodymium, and Thorium. However, improper handling of secondary REE resources poses environmental and health risks. This study comprehensively explores REEs’ role in sustainable industrial growth, evaluating traditional and advanced recycling technologies. It also assesses the ecotoxicological impacts of REEs and emphasizes safety measures. Additionally, the review highlights circular economy strategies for sustainable development, addressing environmental challenges while promoting efficient resource utilization.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 373-390"},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455087","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":"Two inorganic materials were prepared by calcination-acid leaching combined treatment of coal gangue: Al&Fe enriched acid solution and Si enriched material","authors":"Junli Zhang,&nbsp;Haifang Wang","doi":"10.1016/j.wmb.2025.02.003","DOIUrl":"10.1016/j.wmb.2025.02.003","url":null,"abstract":"<div><div>The classification and extraction of valuable components from coal gangue is a way to improve the comprehensive utilization of coal gangue. However, the stable structure of kaolinite in coal gangue makes silicon and aluminum closely combined in minerals, which is difficult to separate by simple physical or chemical methods, and hinders its hierarchical extraction. In this study, a method of calcination activation acid leaching combined with reduction treatment of coal gangue was developed, and an aluminum iron enriched acidic solution and a silicon enriched material were prepared. The activation effect and mechanism of calcined coal gangue and the conversion mechanism of acid leaching extraction of metal aluminum were systematically studied. The results showed that the optimal calcination activation acid leaching process parameters were as follows: calcination temperature: 600 ℃, calcination time: 4 h, acid leaching time: 2 h, solid–liquid ratio of activated coal gangue and hydrochloric acid solution (g:ml): 1:12. After calcination under the optimal conditions, the layered structure of Kaolinite was destroyed and some layered silicate minerals, Berlinite (AlPO₄), FeS, which were soluble in hydrochloric acid solution, were formed. These minerals are dissolved in hydrochloric acid solution and then separated by solid–liquid separation after reaction. An acidic solution rich in aluminum and iron and a material rich in silicon were prepared, which made the recovery of Al and Fe reach 90.84 % and 97.68 %, respectively. And the enrichment rate of Si (SiO₂) reached 83.90 %.This provides a new solution for the comprehensive utilization and sustainable utilization of coal gangue.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 359-372"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419557","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":"A novel Hausdorff fractional grey Bernoulli model and its Application in forecasting electronic waste","authors":"Gazi Murat Duman,&nbsp;Elif Kongar","doi":"10.1016/j.wmb.2025.02.002","DOIUrl":"10.1016/j.wmb.2025.02.002","url":null,"abstract":"<div><div>This study presents the Hausdorff fractional NGBM (r,1), a novel prediction approach developed based on the original nonlinear grey Bernoulli model; NGBM(1,1). The approach integrates the Hausdorff fractional accumulation operator and provides greater degrees of freedom. The recurrence relation of the binomial in the discrete solution also provides simpler computation due to the elimination of the Gamma function calculation. The Jaya Algorithm is introduced to optimize the parameters of the new model to improve its adaptability. The proposed model and its findings are delineated with the help of two case studies utilizing e-waste data from United Kingdom and State of Connecticut. The proposed model is benchmarked with several existing forecasting models and the calculated Mean Absolute Percentage (MAPE) is compared. The findings demonstrate that the proposed model exhibits superior fitting and predictive accuracy in comparison to the existing models. It produced lower MAPE than its counterparts.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 349-358"},"PeriodicalIF":0.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387473","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":"Eco-innovative approaches for recycling non-polyester/cotton blended textiles","authors":"Chandra Manivannan Arun ,&nbsp;Logeshwaran Panneerselvan ,&nbsp;Gunasekhar Nachimuthu ,&nbsp;Meredith Conaty ,&nbsp;Thava Palanisami","doi":"10.1016/j.wmb.2025.02.001","DOIUrl":"10.1016/j.wmb.2025.02.001","url":null,"abstract":"<div><div>Blended textile waste constitutes a substantial portion of the global textile waste stream, making recycling essential for minimizing the industry’s environmental impact. Although polyester/cotton recycling is well developed, many other blended textiles are routinely landfilled owing to a lack of effective recycling technologies. This review critically assesses existing strategies for recycling non-polyester/cotton blends, highlighting the key challenges and opportunities for innovation. In the sorting stage, integrating artificial intelligence (AI) and machine learning (ML) enhances efficiency and accuracy. Advanced methods, such as green chemistry, mechanical recycling, and enzymatic treatments, have proven effective for most blended textiles; however, fibers, such as polypropylene, still lack defined closed-loop recycling routes. Life cycle assessment (LCA) indicates that recycling textile waste can reduce environmental impacts by 60%, but the absence of comprehensive LCA studies on diverse recycling approaches limits reliability. Furthermore, while textile recycling is sustainable, concerns regarding the emission of hazardous additives and organic pollutants pose ecological and health risks. Therefore, advanced recycling technologies for non-polyester/cotton blends are crucial for achieving sustainability. Future research should focus on developing efficient recycling methods for complex blends, addressing the environmental impact of hazardous substances, and standardizing LCA methodologies to ensure economic and environmental viability.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 255-270"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143369026","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}