Waste managementPub Date : 2025-04-13DOI: 10.1016/j.wasman.2025.114785
Bing Zhao , Yuxin Wang , Jiawei Wang , Yinquan Qiu , Fenfen Zhu , Qian Chen , Yuhui Zhang , Huan Wang , Xingmin Fu
{"title":"Seasonal variations in nutrient changes during sludge anaerobic digestion combined with thermal hydrolysis and deep dewatering","authors":"Bing Zhao , Yuxin Wang , Jiawei Wang , Yinquan Qiu , Fenfen Zhu , Qian Chen , Yuhui Zhang , Huan Wang , Xingmin Fu","doi":"10.1016/j.wasman.2025.114785","DOIUrl":"10.1016/j.wasman.2025.114785","url":null,"abstract":"<div><div>The quality of sludge is significantly influenced by seasonal variations and specific treatment stages, particularly through changes in nutrient levels and organic matter composition. However, the detailed mechanisms of these effects remain poorly understood. In this study, sludge samples were collected from a large-scale wastewater treatment plant in Beijing during spring, summer, autumn and winter, across each process node of the “pre-dewatering + thermal hydrolysis + anaerobic digestion + deep dewatering”. A systematic analysis of key soil nutrients (C, N, P, K, Na, Ca and Mg) was conducted on the collected sludge samples. The results demonstrated the concentration of C, N and P in sludge was higher in autumn, with TOC reaching 29.23 %, TN at 44,470.70 mg/kg and TP at 28,572.89 mg/kg. The concentrations of C, N and Na decreased by 34.9 %, 20.4 % and 12.0 % following treatment. Conversely, the concentrations of P, Ca and Mg increased by 20.4 %, 52.7 % and 39.9 %, respectively. Additionally, the reducible fraction contents of K, Na, Ca and Mg exhibited a general increase of 41.68 %, 14.01 %, 31.30 % and 27.13 %, while their oxidizable fractions increased by 101.03 %, 57.27 %, 101.68 % and 59.38 %. The sludge fertilizer quality index (SFQI) showed that the fertility of the treated sludge increased by 1.6 times This study is the first time to use SFQI to quantify sludge quality and systematically evaluate the impact of sludge management on nutrient dynamics. It provides a scientific basis for sludge land utilization and resource utilization.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114785"},"PeriodicalIF":7.1,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-13DOI: 10.1016/j.wasman.2025.114797
Wei Liu , Hui Wang , Ziyang Lou , Changzheng Cui , Zhiyi Sun , Qiujie Huang
{"title":"Co-occurrence and risk emission potential of antibiotics, antibiotic resistance genes, and heavy metals in concentrated leachate in China","authors":"Wei Liu , Hui Wang , Ziyang Lou , Changzheng Cui , Zhiyi Sun , Qiujie Huang","doi":"10.1016/j.wasman.2025.114797","DOIUrl":"10.1016/j.wasman.2025.114797","url":null,"abstract":"<div><div>Membrane-driven process was widely applied for advanced treatment of leachate to achieve the final limitation, but around 10-million-ton concentrated leachate (CL) generated annually has become a hot potato. CL properties and their potential risks were overlooked, and here, we filled in these blanks based on samples from seven provinces from traditional and emerging pollutants perspective. Cd, Pb and Cr were the main contributors for hazardous waste identification with the concentration of 0.07–5.10 mg/L. ΣSulfonamides, Σfluoroquinolones and Σtetracyclines were 408–1,590 ng/L, 2,499–8,306 ng/L and 1,294–1,432 ng/L, respectively. Fluoroquinolones presented critical eco-risks with acute and chronic risk quotients of 85.2–123.1 and 60.3–492.2. Significant correlations between antibiotics, antibiotics resistant genes, and heavy metals were also gained. Annual generation of antibiotics and heavy metal were estimated to be 61.4 kg and 693 tons in 1,955 existing landfills and 214 incineration plants in China. CL seems to be a hazardous waste-like compound based on the toxic substance contents listed in GB 5085.6–2007 and the eco-risks of emerging antibiotics. Regulation permit writers should consider not only water quality, but also the best available technology economically achievable and potential secondary pollutants.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114797"},"PeriodicalIF":7.1,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-11DOI: 10.1016/j.wasman.2025.114788
Bingen Yuan , Xuzhuyan Ma , Xin Zhang , Jiafang Jian , Chenxia Wang , Qin Wang , Liusheng Xiao , Chunfei Zhang , Lan Xia , Da Zheng , Jianxin Wang , He Miao , Jinliang Yuan
{"title":"Recycling and regenerating of spent ternary cathode in lithium-ion battery via the corn straw-induced thermal reduction","authors":"Bingen Yuan , Xuzhuyan Ma , Xin Zhang , Jiafang Jian , Chenxia Wang , Qin Wang , Liusheng Xiao , Chunfei Zhang , Lan Xia , Da Zheng , Jianxin Wang , He Miao , Jinliang Yuan","doi":"10.1016/j.wasman.2025.114788","DOIUrl":"10.1016/j.wasman.2025.114788","url":null,"abstract":"<div><div>To address the problems in the conventional carbothermal-reduction methods for recovery of the spent ternary cathodes in lithium-ion batteries (LIBs), particularly the low-utilization and high-value reductants, this study introduces an optimized thermal-reduction technique utilizing agricultural waste of corn straw as a reductant. The pyrolysis of corn straw generates highly reductive species of C, H<sub>2</sub>, CH<sub>4</sub>, and CO, which converts the reaction mechanism from a conventional solid–solid reaction to a combined solid–solid/solid–gas reactions. This significantly enhances the reduction efficiency of LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>O<sub>2</sub> (LNCMO), enabling the reduction of high-value metals into Ni, Co, and MnO, while converting Li into Li<sub>2</sub>CO<sub>3</sub>. Notably, the optimal corn straw-induced thermal-reduction temperature is 700 °C with the high-utilization efficiency of corn straw. Under the optimal conditions, Li can achieve a high recovery rate of 95.8 %, which exceeds that of the conventional carbothermal reduction techniques. Additionally, the reduction products can be successfully regenerated into LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub>. The discharge specific capacity and coulombic efficiency of the regenerated LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> is 163.9 mA h g<sup>−1</sup> and 94.6 %, respectively. This study provides a novel strategy for the utilization of agricultural waste to achieve high-efficiency recovery of the ternary cathode materials from spent LIBs.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114788"},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-11DOI: 10.1016/j.wasman.2025.114786
Filippo Marchelli , Luca Fiori
{"title":"The growing problem of waste bioplastics disposal, and a way to tackle it","authors":"Filippo Marchelli , Luca Fiori","doi":"10.1016/j.wasman.2025.114786","DOIUrl":"10.1016/j.wasman.2025.114786","url":null,"abstract":"<div><div>Biodegradable plastics will grow significantly in the coming years thanks to their potential for renewability and circularity, particularly in certain European countries. Despite being a niche, their disposal is already emerging as a challenge. Insufficient public awareness is a partial cause, with people being unaware or confused on how to deal with them. Other problems are inherent to the way organic waste treatment plants work. There is indeed a stark contrast between standard biodegradability tests and actual conditions at treatment facilities, often dismissed or ascribed to the negligence of plant operators. If bioplastics are really to be deployed on a large scale, a joint technological effort is essential to properly manage their end-of-life. This contribution briefly summarises the scenario of bioplastic use in the world, the European legislation on the matter (or lack thereof), and the difficulties that waste management plants face with these materials, with a focus on a reference case – Italy – and with an international perspective. Finally, we explore how hydrothermal treatments are emerging in the scientific literature as a possible solution to some of these problems, as they can solubilise most bioplastics and facilitate their treatment in the most updated organic waste treatment plants, which couple anaerobic digestion and composting.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114786"},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-11DOI: 10.1016/j.wasman.2025.114779
Nguyen Thi Kim Oanh , Chirasuda Thiemjarat , Pannawee Mekwichai , Nguyen Thanh Hang , Didin Agustian Permadi , Judith C. Chow , Thai Ha Vinh
{"title":"Characterization and quantification of atmospheric emissions of dioxins, dl-PCBs and polycyclic aromatic hydrocarbons from municipal solid waste open burning in Southeast Asia","authors":"Nguyen Thi Kim Oanh , Chirasuda Thiemjarat , Pannawee Mekwichai , Nguyen Thanh Hang , Didin Agustian Permadi , Judith C. Chow , Thai Ha Vinh","doi":"10.1016/j.wasman.2025.114779","DOIUrl":"10.1016/j.wasman.2025.114779","url":null,"abstract":"<div><div>Solid waste open burning is an important source of dioxins and other toxic pollutants that have not been sufficiently characterized. This study investigated atmospheric emissions of semi-volatile organic compounds (SVOCs) from municipal solid waste open burning (MSWOB) and mixed plastics burning in unconfined loose piles. Emission factors (EF) of 17 chlorinated dioxins, 12 dioxin-like polychlorinated biphenyls (dl-PCBs), and 13 polycyclic aromatic hydrocarbons (PAHs) varied between experiments owing to changing waste types and combustion conditions. Average EFs for MSWOB on a wet weight basis of the waste materials for dioxins and dl-PCBs were 482 and 32 ng WHO-TEQ/kg, respectively, and 66 mg/kg for PAHs. Corresponding values for plastics burning were 9.6 and 0.55 ng WHO-TEQ/kg, and 31 mg/kg. The gas phase dominated over the particulate phase, sharing above 70 % in the total of dioxins and dl-PCBs, respectively, and 90 % of PAHs emitted from MSWOB. The obtained SVOC congener distributions profiles show the signatures of waste burning sources, with prominent markers of <em>de novo</em> formed dioxins. The obtained EFs, reported for the first time for waste burning practice in Southeast Asia, were used to produce order-of-magnitude annual emission estimates from MSWOB in the region, with 5.3 TEQ kg for dioxins and 669,400 kg for PAHs, including 5,221 kg benzo(a)pyrene and 268 kg dibenzo(a,h)anthracene. Background air showed similar SVOCs profiles, but at lower levels than burning smoke. Exposure to ambient air contaminated with the MSWOB emissions would cause adverse health effects. Strict regulations and stakeholders’ collective actions are required to stop this practice.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114779"},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-11DOI: 10.1016/j.wasman.2025.114789
Ying Hu , Xianghang Li , Dongsheng Shen , Lifang Hu , Chengran Fang , Yuyang Long
{"title":"Effects of inescapable waste composition on microplastic release and sulfate reduction in landfill","authors":"Ying Hu , Xianghang Li , Dongsheng Shen , Lifang Hu , Chengran Fang , Yuyang Long","doi":"10.1016/j.wasman.2025.114789","DOIUrl":"10.1016/j.wasman.2025.114789","url":null,"abstract":"<div><div>This study systematically investigated the co-regulatory mechanism between waste composition, microplastic (MP) release, and sulfate reduction processes in simulated landfill environments under various waste composition conditions. Key findings include higher MP release and sulfate consumption in high-biodegradable waste groups compared to low-biodegradable waste ones, and a more sensitive coupling between sulfate concentration attenuation and MP release response in the low-biodegradable waste group. Biodegradable waste emerged as an inescapable source of MP release, contributing 17.42% of total MP release. Notably, high-biodegradable waste groups generated MP levels 2.75–2.38 times higher than their low-biodegradable counterparts. The abundant organic matter in biodegradable waste synergized with the sulfate reduction process, substantially exacerbating secondary MP release. Furthermore, leachate circulation enhanced the dynamic coupling between MP release and sulfate reduction. Based on these findings, a targeted strategy for waste source classification and leachate regulation was proposed to achieve coordinated control of new pollutants and legacy pollutants in landfills. This approach provides scientific support for pollution control and sustainable landfill management.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":""},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Optimised extraction of bioactive compounds from spruce needles for sustainable applications","authors":"Žydrūnė Gaižauskaitė , Linards Klavins , Karolina Almonaityte","doi":"10.1016/j.wasman.2025.114784","DOIUrl":"10.1016/j.wasman.2025.114784","url":null,"abstract":"<div><div>Besides bark and branches, coniferous needles contribute to approximately 30 % of the biomass left unused in forests after timber harvesting, posing fire and environmental risks. However, by extracting valuable compounds from spruce needles, such as proanthocyanidins, phenolic compounds, shikimic acid, and others, targeted use of forestry by-product biomass can be achieved. Given the consumer demand for natural products and the growing need for alternative preservatives to ensure food safety, it is imperative that plant-derived components be fully assessed for their feasibility for food application. In this work extraction conditions for spruce needles were optimized using Response Surface Methodology, to obtain extracts with the highest concentration of bioactive compounds. The main identified and optimized extraction variables were temperature and time. Using the optimal extraction conditions allowed to extract a maximum concentration of phenolic compounds (79.21 ± 0.21 mg<sub>GAE</sub>/g DM), proanthocyanidins (21.70 ± 0.24 mg<sub>CE</sub>/g DM) and shikimic acid (32.4 ± 0.1 mg/g DM). Additionally, vitamins B<sub>6</sub> and B<sub>9</sub>, in maximum concentration of 3.7 ± 0.14 µg/g DM and 4.35 ± 0.05 mg/g DM were obtained, respectively. The macro- and micro-nutrient composition of the extract obtained under optimal conditions was determined and the antibacterial characteristics against gram-positive food pathogens such as <em>Staphylococcus aureus, Bacillus cereus, Listeria monocytogenes</em>, were determined. Due to its rich composition of bioactive compounds, this extract stands out not only as a valuable and safe solution for use in sustainable food but can also be applied in the pharmaceutical field.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":""},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-11DOI: 10.1016/j.wasman.2025.114790
Nitya Sharma , Aastha Bhardwaj , Okon Johnson Esua , Milica Pojić , Brijesh K Tiwari
{"title":"Cereal processing by-products and wastewater for sustainable protein extraction","authors":"Nitya Sharma , Aastha Bhardwaj , Okon Johnson Esua , Milica Pojić , Brijesh K Tiwari","doi":"10.1016/j.wasman.2025.114790","DOIUrl":"10.1016/j.wasman.2025.114790","url":null,"abstract":"<div><div>The global food supply chain faces significant challenge due to substantial losses and waste, particularly in cereal processing. This review focuses on sustainable protein extraction from wastewater and by-products of key cereals, including rice, wheat, corn, millet, and oats. The structural conformation, molecular weight distribution, amino acid content, and bioactive characteristics of the extracted proteins were examined, highlighting their potential applications in food and allied industries. Certain proteins, such as globulins (52 kDa) and lipid transfer proteins (9 kDa), contribute to the functional qualities of rice by-products, which show strong antioxidant capacity. Zein and gliadins, two proteins found in maize and wheat, have noteworthy bioactive qualities but are linked to issues with allergenicity and high cost associated to their purification and extraction. The protein landscape is further diversified by oats and millet, which have distinct nutritional profiles and compositions. To enhance protein recovery while addressing cost and allergenicity constraints, biorefinery techniques integrating enzyme-assisted extraction with natural deep eutectic solvents (NADES) are explored. These methods not only improve extraction efficiency but also enhance protein bioavailability while reducing dependence on conventional solvents making the process more cost-effective and environmentally sustainable. The integration of these techniques within biorefinery frameworks enables simultaneous recovery of proteins, bioactive compounds, other high-value fractions, while significantly reducing food wastes and supporting circular economy principles. This review highlights the potential of cereal by-products as sustainable protein sources while emphasizing the crucial role of biorefineries in transforming these by-products into high-value products, contributing to a more sustainable and efficient food system.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114790"},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-10DOI: 10.1016/j.wasman.2025.114787
Seungu- Cho, Thang Toan Vu, Junghyeong- Seo, Jieun- Cha, Yeongeun- Choi, Daesung- Song
{"title":"Enhancing lithium recovery from spent lithium-ion batteries: Techno-economic analysis comparison with and without extractant recovery process","authors":"Seungu- Cho, Thang Toan Vu, Junghyeong- Seo, Jieun- Cha, Yeongeun- Choi, Daesung- Song","doi":"10.1016/j.wasman.2025.114787","DOIUrl":"10.1016/j.wasman.2025.114787","url":null,"abstract":"<div><div>The recovery of Lithium (Li) from Lithium-ion batteries (LiBs) via solvent extraction faces challenges due to the significant dissolution of extractants into the aqueous phase, leading to considerable economic losses and environmental concerns. To address this issue and support a sustainable LiBs industry, this study proposes a breakthrough for recovering and recycling extractants during the Li extraction process. The process includes three key stages: Extraction, Stripping, and Extractant Recovery. Experimental results demonstrated that approximately 89 % of the extractant loss can be recovered to the organic phase at pH 1. Based on experimental data, a comprehensive mass balance and techno-economic analysis were conducted for the entire process. Using the Lithium hydroxide monohydrate (LiOH·H<sub>2</sub>O) production process as a case study, economic indices were compared for processes with and without extractant recovery. At a processing capacity of 0.165 t/h of Li, the implementation of extractant recovery resulted in a 14.5 % Return on Investment (ROI) and 6.03 years Payback Period (PBP), compared to an ROI of 12.3 % and a PBP of 7.03 years for the conventional process without recovery. This approach not only significantly reduces economic losses but also enhances the sustainability and scalability of Li recycling operations, offering a viable pathway for the commercialization of advanced Li extraction technologies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114787"},"PeriodicalIF":7.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Waste managementPub Date : 2025-04-09DOI: 10.1016/j.wasman.2025.114765
Xin Qi, Tao Zhang
{"title":"Exploring coordination strategies for sustainable development: Addressing information challenges in waste resourcization","authors":"Xin Qi, Tao Zhang","doi":"10.1016/j.wasman.2025.114765","DOIUrl":"10.1016/j.wasman.2025.114765","url":null,"abstract":"<div><div>In view of the limited mineral resources, it is imperative to develop coordinated strategies to mitigate the risks of information asymmetry in the e-waste recyclable supply chain. This study explores the two-period strategies employed by brand owners when outsourcing to qualified recyclers who engage in both processing and remanufacturing, and operate across online and offline waste recycling channels, under conditions of both symmetric and asymmetric information. The research compares the effects of full-commitment contracts and anti-renegotiation contracts on the strategies of brand owners, recyclers, and information incentives. When information is symmetric, brand owners can set higher expected transfer payments from recyclers and lower offline recycling reward prices paid to customers during periods of high market demand. Offline recyclers, leveraging their collaborative effect with brand owners, offer higher rewards to customers compared to the online channel, where rewards are more sensitive to fluctuations in market demand. In contrast, when information is asymmetric, the brand owner needs to adjust the offline recycling rewards upwards to screen for low market demand conditions. This distortion helps mitigate the risks associated with incomplete information and ensures appropriate incentives are in place for both parties. When the recycler discloses a low market demand in both periods, the brand owner will set a lower reward price in period II than that in period I. In certain conditions, full-commitment contracts and anti-renegotiation contracts are identical. When contracts are separated and the history signal is low, the high-type recycler can get higher information rent in period two under the anti-renegotiation contract. When the history signal is high, the high-type recycler can receive the same information rent under the two contracts in period II and higher information rent under the anti-renegotiation contract in period I. Compared to the full-commitment contract, the anti-renegotiation contract can mitigate the upward distortion of the offline reward under certain conditions, thereby proving more advantageous for the brand owner. This research provides valuable insights for managers of waste resourcization enterprises, facilitating their ability to screen market information effectively. Such findings are particularly pertinent for promoting green and sustainable development practices.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114765"},"PeriodicalIF":7.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}