Marinélia N. Capela, David M. Tobaldi, Inês S. Vilarinho, Maria P. Seabra, João A. Labrincha
{"title":"Influence of pre-treatments on strength and hydrocalumite content in a self-hardened binder exclusively derived from biomass fly ash","authors":"Marinélia N. Capela, David M. Tobaldi, Inês S. Vilarinho, Maria P. Seabra, João A. Labrincha","doi":"10.1007/s10163-025-02256-x","DOIUrl":"10.1007/s10163-025-02256-x","url":null,"abstract":"<div><p>Woody biomass combustion for heat and power production generates substantial amounts of biomass fly ash (BFA), typically disposed of in landfills. Valorizing this residue can be achieved by exploiting its self-hardening properties. This study investigates the effects of pre-treatments on BFA characteristics and self-hardened specimens' mechanical response and mineralogical phase development. Pre-treatments involved sieving BFA at 63 μm and grinding BFA to pass the 63 μm sieve. Self-hardened specimens were prepared merely by adding distilled water to the BFA powders and curing for 7, 30, 90, and 120 days. Reducing particle size increased compressive strength and hydrocalumite content in samples cured for 120 days. After 120 days, the sieved BFA sample had the highest hydrocalumite content (29.1 wt.%). The ground and sieved samples showed the greatest compressive strength (8.1 MPa). This suggests that hydrocalumite alone does not account for the strength; better compactness and higher concentrations of reactive species (Ca, Si, S, Al, and Cl) in the ground powder likely contributed to forming more amorphous or low-crystallinity hydration products that enhance specimen strength. Using BFA as a precursor for producing hydrocalumite-containing self-hardened binders offers a promising method for valorizing this residue, leveraging its adsorption capabilities for affordable environmental remediation solutions. </p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2549 - 2562"},"PeriodicalIF":3.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-025-02256-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How social publicity influences the behavioral intention of waste separation of Chinese urban residents","authors":"Sha Lou, Dian Song, Dehua Zhang","doi":"10.1007/s10163-025-02243-2","DOIUrl":"10.1007/s10163-025-02243-2","url":null,"abstract":"<div><p>Waste separation is important for improving ecological environment, saving resources, and safeguarding the health of residents. Nowadays, social publicity as a channel of information dissemination can have a potential impact on residents’ intention to separate waste. Based on the Norm Activation Model (NAM), this study explores the mechanisms of social publicity on the behavioral intention of waste separation among urban residents in China, and uses Structural Equation Model (SEM) to conduct an empirical study. The results show that both consequences awareness and responsibility attribution have a direct and positive influence on personal moral norm, and that consequences awareness can indirectly influence personal moral norm through responsibility attribution. Personal moral norm can directly influence urban residents’ intention to separate waste. At the same time, social publicity can directly influence the core variables in the NAM, and indirectly influence urban residents’ intention to separate waste. This study not only provides new research ideas for future research, but also helps policy makers to better understand the factors influencing urban residents’ waste separation intention, and provides them with theoretical basis and policy insights.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2404 - 2419"},"PeriodicalIF":3.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Methods and techniques to fabricate PET recycled nanomaterials: a review","authors":"Vinay Kumar, Neha Sharma, Mridul Umesh, Poonam Janghu, Suma Sarojini, Pritha Chakraborty, Ritu Pasrija","doi":"10.1007/s10163-025-02245-0","DOIUrl":"10.1007/s10163-025-02245-0","url":null,"abstract":"<div><p>Polyethylene terephthalate (PET) is one of the most used synthetic polymers. Therefore, it finds its application in a diverse range of products. This is the reason for its emergence as one of the persistent organic pollutants (POP). The PET materials can be recycled and converted into useful materials like nanofibers which can be used in various sectors such biomedical, food packaging, textile, and electronic industries. The presented review literature is an endeavor to explore the methods for conversion of PET into nanomaterials specifically nanofibers for useful applications. The review discusses in detail about PET recycling methods such as glycolysis, methanolysis, hydrolysis, ammonolysis, aminolysis, quaternary recycling, and biodegradation. In addition, methods for conversion of PET to nanomaterials including electrospinning, template-assisted synthesis and solvent-based techniques are discussed. Moreover, methods for characterization of PET nanomaterials such as spectroscopy (UV–Vis, FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), dynamic light scattering (DLS), Raman spectroscopy (RS), nuclear magnetic resonance (NMR) and mass spectrometry (MS) are explained. Application of the nanomaterials produced from the PET materials are explored at the end of the review paper.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2076 - 2098"},"PeriodicalIF":3.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Ismail Shahib, R. P. Vijayakumar, Payyawal Vinith
{"title":"Hydrothermal conversion of end-of-life waste toner powder into magnetic carbon-iron nanocomposite for energy storage applications","authors":"M. Ismail Shahib, R. P. Vijayakumar, Payyawal Vinith","doi":"10.1007/s10163-025-02252-1","DOIUrl":"10.1007/s10163-025-02252-1","url":null,"abstract":"<div><p>Wealth out of Waste (WoW) approach has attracted considerable attention for its potential economic and environmental benefits. A novel method to synthesize magnetic carbon-iron nanocomposites using end-of-life cartridge waste toner powder was successfully demonstrated through a single-pot hydrothermal process. The synthesized composite materials' structural, thermal, and magnetic properties were assessed and electrochemical analysis revealed a specific capacitance of 204 F/g at a scan rate of 5 mV/s. These values are comparable to or exceed those of Carbon/Fe<sub>3</sub>O<sub>4</sub>-based nanocomposites, suggesting that waste-derived composite materials have the potential to sustainably meet global energy storage demands. Additionally, these composites demonstrated exceptional stability by retaining 83% capacitance for 2000 charge–discharge cycles. The synthesized Fe<sub>3</sub>O<sub>4</sub>-carbon composite offers several advantages, such as its preparation from waste material and ease of removal through magnetic separation. Moreover, it plays a significant role in reducing electronic waste, serves as a cost-effective approach for electrode material technology, and promotes environmental sustainability by converting waste into valuable energy storage resources. These developments offer opportunities for producing multifunctional composite materials from waste for a wide range of applications.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2454 - 2466"},"PeriodicalIF":3.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ta Thi Hoai, Toshifumi Mukunoki, Kenji Shida, Nguyen Thi Hai, Nguyen Thi Hoang Ha, Luu Viet Dung, Do Trung Hieu
{"title":"Adsorption, diffusion, and hydraulic performance of geopolymer from fly ash waste–bentonite clay in ammonium solution","authors":"Ta Thi Hoai, Toshifumi Mukunoki, Kenji Shida, Nguyen Thi Hai, Nguyen Thi Hoang Ha, Luu Viet Dung, Do Trung Hieu","doi":"10.1007/s10163-025-02253-0","DOIUrl":"10.1007/s10163-025-02253-0","url":null,"abstract":"<div><p>Sanitary landfills necessitate careful design and construction of liner systems to prevent leachate migration into surrounding areas. This study investigates the barrier performance of a geopolymer made from fly ash waste mixed with natural bentonite clay at ratios of 10% (FB1), 30% (FB3), and 50% (FB5) in ammonium (NH<sub>4</sub><sup>+</sup>) solution. The performance of the bottom liner application is characterized by adsorption, diffusion, and permeability. The results demonstrate that FB3 effectively represents the Langmuir model and exhibits the highest NH<sub>4</sub><sup>+</sup> uptake capacity, achieving a maximum adsorption capacity of 24.58 mg/g. The diffusion coefficient of FB1–FB5 varies from 5.0 × 10<sup>–10</sup> m<sup>2</sup>/s to 1.0 × 10<sup>–9</sup> m<sup>2</sup>/s. The optimal 10% content meets the regulations for liner materials with a hydraulic conductivity of 8.46 × 10<sup>–10</sup> m/s in ammonium solution (1000 mg/L NH<sub>4</sub><sup>+</sup>-N); however, increasing bentonite clay beyond 30% raises hydraulic conductivity. Thus, these findings suggest that the proposed geopolymer made from bentonite clay and fly ash could serve as a promising liner material for NH<sub>4</sub><sup>+</sup> ions.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2467 - 2481"},"PeriodicalIF":3.0,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samir Sayadi-Gmada, Carlos Parra-López, Carmen Carmona-Torres, Guillermo Garcia-Garcia
{"title":"Exploring alternative solutions for sustainable waste management in the horticultural greenhouse sector","authors":"Samir Sayadi-Gmada, Carlos Parra-López, Carmen Carmona-Torres, Guillermo Garcia-Garcia","doi":"10.1007/s10163-025-02246-z","DOIUrl":"10.1007/s10163-025-02246-z","url":null,"abstract":"<div><p>Intensive agriculture is increasingly adopted due to its high productivity. However, it generates significant amounts of waste that are potentially harmful to the environment. For example, greenhouse horticulture is commonly practised in several Mediterranean countries and generates waste that is difficult to manage, especially plastics. Unfortunately, current waste management practices, such as incineration, landfilling or dumping, are often not sustainable. However, there are possible alternative solutions for sustainable waste management. Therefore, the objective of this article is to present alternative systems based on different models of cooperative management of waste generated in the horticultural greenhouse sector. Five alternatives were analysed in terms of their economic, social and environmental sustainability using expert knowledge processed with the Analytic Hierarchy Process (AHP) method. The results show that there are alternative solutions to manage waste in a more sustainable way in the horticultural greenhouse sector, such as establishing collaboration between cooperative and managers, and the cooperative becoming the waste manager. None of the cooperatives in the region studied have currently implemented these two options. By adopting these alternative solutions, cooperatives can play a key role in promoting sustainable waste management practices in the horticultural greenhouse sector.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2420 - 2430"},"PeriodicalIF":3.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-025-02246-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Feeding black fly soldier larva using fermented solid residue generated from food waste three-phase separation","authors":"Liang Chen, Luxin Yang, Chong Peng, Ziqi Chen, Huan Li, Zhou Deng","doi":"10.1007/s10163-025-02249-w","DOIUrl":"10.1007/s10163-025-02249-w","url":null,"abstract":"<div><p>During the pretreatment of some food waste (FW) treatment plants, FW is centrifugated to separate crude oil for biodiesel processing, liquid phase for anaerobic digestion (AD), and solid residue for AD or incineration. To increase the benefits of FW treatment, in this study, we tried black soldier fly larvae (BSFLs) cultivation using the solid residue before and after fermentation and evaluated the quality of larvae as animal protein feed. The results showed that direct fermentation (lactic acid fermentation without any additives) and mixed fermentation (with yeast and cellulase addition) prompted the protein content of the solid residue to 45–48%, with lactic acid, acetic acid, and ethanol as the main products. When shifting the solid residue to the directly fermented or mixed-fermented residue, the average weight increment of BSFLs increased from 145 to 162 mg and 181 mg, the survival rate of BSFLs rose from 86.00 to 91.67% and 93.67%, and the protein content of BSFLs increased from 42.47 to 47.50% and 49.63%, respectively. The essential amino acid index of BSFLs rose from 0.92 to 0.95 and 0.96, verifying excellent protein feed. The results provide a new pathway to enhance FW resource utilization.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2431 - 2443"},"PeriodicalIF":3.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of temperature and type of catalyst on the composition of pyrolysis oil obtained from oil sludge","authors":"Reza Morvaridi, Ahmad Hallajisani, Jale Rasouli","doi":"10.1007/s10163-025-02230-7","DOIUrl":"10.1007/s10163-025-02230-7","url":null,"abstract":"<div><p>Oil sludge is composed of both inorganic and organic compounds, poses a serious threat to the environment. This research aimed to examine the impact of temperature (200–600 °C), N<sub>2</sub> flow rate (100–800 mL/min), and HZSM-5, KOH, TiO<sub>2</sub>, and Al<sub>2</sub>O<sub>3</sub> catalysts on pyrolysis oil. Each catalyst had a unique effect on the process, generally increasing the heating value and producing lighter hydrocarbons. In addition, increasing temperature increased pyrolysis oil and increasing N<sub>2</sub> flow increased biochar production. The optimal temperature and gas flow rate for pyrolysis oil production yield were determined to be 531 °C and 202 mL/min. TiO<sub>2</sub> exhibited the best performance, resulting in a 25% increase in heat value, a 15% increase in H/C, and a 60% decrease in O/C compared to the non-catalytic process, due to its high activity on promoting secondary cracking phenomena. Furthermore, the use of catalysts led to the production of 80–520 wt% more aliphatic compounds in the pyrolysis oil while simultaneously reducing the presence of aromatics by 18–81 wt%. The Al<sub>2</sub>O<sub>3</sub> catalyst produced the highest percentage of light hydrocarbons at 48.13 wt%, while the KOH catalyst had the lowest amount of SNO compounds at a rate of 89.62 wt%. </p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2269 - 2285"},"PeriodicalIF":3.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salman Munir, Muhammad Zia Ul Haq, Saira Shafiq, Asad Azeem, Iftikhar Ali
{"title":"From waste to value: traditional to innovative approaches for agricultural and food waste valorization","authors":"Salman Munir, Muhammad Zia Ul Haq, Saira Shafiq, Asad Azeem, Iftikhar Ali","doi":"10.1007/s10163-025-02251-2","DOIUrl":"10.1007/s10163-025-02251-2","url":null,"abstract":"<div><p>Challenges in managing agricultural and food wastes (AFWs) have been exacerbated by the rapid growth of the global population. Poorly managed AFWs, including residues from crops, livestock, and agro-industries, pose a significant environmental challenge and public health risks. Nonetheless, effective utilization of AFWs depicts their substantial potential as valuable resources. The present review explores the possible valorization processes of various types of AFWs, focusing on sustainable approaches to reuse and recycle these materials. The transformation of AFWs into value-added products, such as animal feed, organic fertilizers, mulches, insect farming, bioenergy, food fortificants, edible coatings, upcycled foods, and food donation has been thoroughly discussed in the present review. Furthermore, the contribution of sustainable management AFWs toward environmental sustainability, economic growth, and improved food security has been highlighted by the promotion of circular economy principles. The present review concludes by accentuating the need for strategic planning, government support, and continued research to accomplish the benefits of AFWs valorization.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 4","pages":"2119 - 2141"},"PeriodicalIF":3.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative evaluation of polyhydroxyalkanoates recovery methods for a mixed microbial culture derived from waste activated sludge","authors":"Daisuke Inoue, Kohei Miwa, Michihiko Ike","doi":"10.1007/s10163-025-02242-3","DOIUrl":"10.1007/s10163-025-02242-3","url":null,"abstract":"<div><p>The production of polyhydroxyalkanoates (PHAs) using a mixed microbial culture (MMC) derived from waste activated sludge (WAS) is a promising strategy for converting wastewater treatment plants into biorefinery facilities. Despite many studies on PHA production, the recovery of PHA stored in WAS-derived MMC has received less attention. In this study, we comparatively evaluated three solvent extraction, three cellular digestion, and two mechanical disruption methods to determine their effectiveness in the recovery of PHA from WAS-derived MMC. Chloroform extraction, sodium hydroxide digestion, and ultrasonic disruption were selected as effective candidates in initial screenings, and their processing conditions were optimized. While PHA recovery by the optimized chloroform extraction was 74%, the recovered polymers contained ignorable impurities and had superior molecular properties. In contrast, sodium hydroxide digestion and ultrasonic disruption enabled PHA recovery without loss, but the purity (> 73% and ≥ 80%, respectively) and molecular properties of the recovered polymers required some improvement. Our findings suggest that these PHA recovery methods would be applicable in PHA production using WAS-derived MMC with pre- or post-processing as necessary, though they did not necessarily satisfy all the requirements in PHA production systems.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 5","pages":"2887 - 2898"},"PeriodicalIF":3.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-025-02242-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}