Journal of Material Cycles and Waste Management最新文献

{"title":"Recovery of lithium and cobalt from used lithium-ion cell phone batteries through a pyro-hydrometallurgical hybrid extraction process and chemical precipitation","authors":"Sharjeel Ahmed,&nbsp;Noor Haleem,&nbsp;Yousuf Jamal,&nbsp;Sher Jamal Khan,&nbsp;Xufei Yang","doi":"10.1007/s10163-024-02146-8","DOIUrl":"10.1007/s10163-024-02146-8","url":null,"abstract":"<div><p>Used lithium-ion batteries rich in valuable metals such as lithium and cobalt are usually disposed of in landfills, causing potential landfill fires and pollution of soil and waterways. A hybrid pyro-hydrometallurgical process was developed with citric acid as a leaching agent and hydrogen peroxide as a reductant to recover lithium and cobalt ions from the used cell phone batteries. Results revealed that 90.60 ± 3.43% of cobalt and 93.46 ± 4.05% of lithium were leached out, under an optimized condition of 1 M of citric acid, 3 vol% of hydrogen peroxide, 20 g L⁻¹ solid-to-liquid ratio, 80 °C leaching temperature, and 2-h leaching time. The effects of temperature, citric acid, and hydrogen peroxide concentration on leaching efficiency were investigated. Compared to similar processes in the literature, the hybrid process required relatively low reaction temperatures and organic acid concentrations. The leached cobalt and lithium ions were then converted into cobalt oxalate and lithium carbonate using oxalic acid and sodium carbonate, with recovery efficiency of 95.02 ± 3.1% and 91.5 ± 2.7% and sample purity of 99.16 ± 0.4% and 98.77 ± 0.7% achieved, respectively. This research is expected to improve the recycling of lithium-ion batteries and the like.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"925 - 936"},"PeriodicalIF":2.7,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564442","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":"Analyzing liquefaction potential of municipal solid waste fines with fibers: a study on energy method and correlation models","authors":"Parul Rawat,&nbsp;Supriya Mohanty","doi":"10.1007/s10163-024-02143-x","DOIUrl":"10.1007/s10163-024-02143-x","url":null,"abstract":"<div><p>This study includes the reusability of the municipal solid waste (MSW) fines and fiber-reinforced MSW fines, where fibers are also the part of the waste. The investigation focuses on the liquefaction susceptibility of the considered waste using energy method. A total of 57 cyclic triaxial tests were conducted on MSW fines considering 5 parameters, i.e., relative compaction (<i>R</i>_<i>c</i>), frequency (<i>f</i>), effective confining pressure (<i>σ′</i>_<i>c</i>), shear strain (<i>γ</i>), and fiber content (FC). The obtained data were further used for simplified models through the developed correlations. The cumulative dissipated energy at liquefaction of MSW fines was found to be significantly higher than that of sands and similar types of waste. The fibers under consideration show no improvement in the liquefaction resistance of the MSW fines. The developed correlations between the energy and the excess pore water pressure ratio, and energy and shear modulus ratio aid in predicting the behavior of waste under dynamic loading conditions. Regression models achieve <i>R</i>² &gt; 0.9 for excess PWP and energy ratios, <i>R</i>² ≈ 0.99 for shear modulus and energy ratio, and <i>R</i>² &gt; 0.7 for dissipated energy prediction, with a new FC/<i>γ</i> ratio introduced for reinforced MSW fines. The relationship developed by regression models between different parameters and dissipated energy can be applied to other types of waste with similar nature.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"898 - 913"},"PeriodicalIF":2.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564432","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":"Study on hydration kinetics and characteristics of high-content modified phosphogypsum cement-based materials","authors":"Dengxian Bai,&nbsp;Yanping Tu,&nbsp;Guofu Chen,&nbsp;Junjie Xie,&nbsp;Huangjun Huang","doi":"10.1007/s10163-024-02138-8","DOIUrl":"10.1007/s10163-024-02138-8","url":null,"abstract":"<div><p>Phosphogypsum (PG), a by-product of the phosphate fertilizer industry, is compromised by acidic impurities such as phosphorus and fluorine. These impurities degrade the quality of PG and limit its application in construction. Lime neutralization offers a viable method for purifying PG. In this study, PG was modified with different lime contents (0, 1%, 2%, 3% and 4%) at 200℃ for different times (2 h, 4 h and 6 h) to prepare high-temperature modified phosphogypsum (HPG). The impact of HPG on the hydration process of cement and the mechanical properties of cementitious materials is assessed through hydration heat testing. XRD and FESEM are used to analyze the composition of hydration products and the microstructure of cementitious materials, respectively. Based on the results of cement hydration heat, a hydration mechanism model for PG-based cementitious materials is established. The results show that the acidic impurities in PG can be removed by neutralization reaction of quicklime (QCL), thus increasing the pH value of PG, while the modification time has little effect on the pH value of gelling material. The strength of 2% quick lime-modified cementing material reached the maximum at all ages. Compared with the unmodified cementing material, the 3d flexural strength and compressive strength increased by 1.8 MPa and 5.5 MPa, respectively, and the 28d flexural strength and compressive strength increased by 1.9 MPa and 8.4 MPa, respectively. The addition of 2% QCL promoted the hydration degree of the cementing material in the nucleation growth stage, thus improving the cement performance and the overall strength and durability of the cement. The microscopic analysis shows that the addition of 2% QCL can promote the growth of hydration products of the cementitious materials and promote the development of strength of the cementitious materials. Considering all factors, 2% QCL is identified as the optimal content for neutralizing PG. Combining all factors, 2% QCL was determined to be the best content of neutralizing PG.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"848 - 864"},"PeriodicalIF":2.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564433","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":"Quantitative evaluation of solid waste management policies: the application of the policy modeling consistency index model in Pakistan","authors":"Jing Ma,&nbsp;Tajdar Khan,&nbsp;Haimei Li,&nbsp;Zhaoyun Yin,&nbsp;Khush Dil Khan","doi":"10.1007/s10163-024-02139-7","DOIUrl":"10.1007/s10163-024-02139-7","url":null,"abstract":"<div><p>The government of Pakistan has implemented policies to tackle solid waste problems; however, their results have been disappointing. This study used the Policy Modeling Consistency Index to assess 12 policies issued between 2005 and 2022 to find their strengths and weaknesses from multiple perspectives. Study results indicate that one policy (PL1) meets the criteria for a perfect level of consistency; its PMC-Index score is 9.08, which falls between 9 and 10. Six policies (PL4, PL9, PL12, PL5, PL11, and PL8) show a good level of consistency, with scores of 8.03, 7.84, 7.84, 7.67, 7.42, and 7.21, respectively, falling between 7 and 8.99. Five policies (PL10, PL6, PL3, PL7, and PL2) have acceptable consistency, scoring 6.47, 6.11, 5.97, 5.50, and 5.30, respectively, falling between 5 and 6.99. However, no policy scored 0–4.99, showing low consistency. The study provides an optimization path for low-ranked policies to improve (1) multi-departmental coordination to release policies together and share expertise, knowledge, and resources; (2) policy expansion to cover rural, urban, and industrial zones; (3) enhance timeliness to ensure prompt and regular policy reviews and updates; (4) enrich policy functions; and (5) execute economic incentives and penalties, among others. These specified insights can aid decision-makers in optimizing these policies.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"865 - 879"},"PeriodicalIF":2.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564434","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":"Choosing among plastic waste management options: lessons from Zimbabwe’s plastic waste flows","authors":"Luke Makarichi,&nbsp;Warangkana Jutidamrongphan,&nbsp;Kingsley Okpara","doi":"10.1007/s10163-024-02132-0","DOIUrl":"10.1007/s10163-024-02132-0","url":null,"abstract":"<div><p>Widespread concerns about plastic pollution have compelled many countries to implement measures aimed at reducing plastic waste (PW) leakage into the environment. Setting 2023 as the base year, the current study employs material flow analysis (MFA) to investigate how the PW situation in Zimbabwe would respond to different management options. The study involved constructing PW flows in an MFA model and re-constructing them under five different scenarios to evaluate how the PW situation changes. Five different indicators are used in comparing outcomes across the scenarios. The results show that increasing PW collections from the current 3.7–10% will increase the availability of plastic recyclates to formal recyclers by 140%, and will raise the country's overall PW recycling rate to 19.8%. However, implementing this measure alone cannot sufficiently reduce plastic pollution. Combining waste-to-energy (WtE) and increasing PW recycling is a necessary interim measure for drastically reducing PW stocks by 40% and creating enough feedstock for a WtE plant with an energetic potential of 3.4 × 10⁶ GJ per annum. The study focuses on Zimbabwe, but the lessons learned can be applied to various contexts and assist similar developing countries in decisively reducing plastic pollution.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 1","pages":"597 - 615"},"PeriodicalIF":2.7,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02132-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939340","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":"Selective bromination-volatilization of PbO from ZnO-PbO mixtures using bromine-containing plastic: A promising approach for recycling hazardous wastes","authors":"Yusuf Olalekan Zubair,&nbsp;Yuji Takasaki,&nbsp;Yutaro Takaya,&nbsp;Chiharu Tokoro","doi":"10.1007/s10163-024-02141-z","DOIUrl":"10.1007/s10163-024-02141-z","url":null,"abstract":"<div><p>This study explores the potential of acrylonitrile butadiene styrene (ABS) resin, a bromine-containing plastic, for selectively separating PbO from a ZnO-PbO mixture. Thermodynamic calculations suggested the susceptibility of both PbO and ZnO to bromination by HBr from ABS resin. Initial trials showed limited PbO and ZnO volatilization. Combusting ABS resin and dust mixtures converts approximately 40 wt% of PbO to PbBr₂, but PbO volatilization selectivity remains below 30% due to concurrent ZnO volatilization. This low selectivity is due to the inhibiting effect of char and CO gas on PbBr₂ volatilization and the enhancement of ZnO volatilization. To improve PbO volatilization selectivity, operational parameters were varied. Increasing ABS resin size, decreasing pellet size, and altering the heating method raised PbO volatilization selectivity by over three times, with more than 60 wt% PbO volatilized. Microscopic analysis confirmed PbO bromination and volatilization as lead bromide compound (e.g., PbBr₂), while ZnO underwent direct volatilization through a carbothermic reaction. This study shows that optimizing operational parameters can selectively separate heavy metals using bromine-containing plastics. For practical application in steelmaking dust, it is crucial to examine the effects of coexisting Fe compounds.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 1","pages":"616 - 623"},"PeriodicalIF":2.7,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02141-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939370","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":"Wimplebin: an AI-based recycle bin for a better waste management","authors":"Jiacang Ho,&nbsp;JongHyuk Lee,&nbsp;HyoungSuk Kim","doi":"10.1007/s10163-024-02145-9","DOIUrl":"10.1007/s10163-024-02145-9","url":null,"abstract":"<div><p>Advanced artificial intelligence (AI) technologies have bestowed numerous advantages upon our daily lives. Despite the ongoing efforts of various institutions urging responsible waste distribution for the preservation of our planet, completely resolving the waste problem remains a formidable challenge. This paper endeavors to present a solution through the integration of AI into waste distribution systems. We introduce WimpleBin, an AI-based recycle bin, designed to accurately classify waste streams following training with machine learning algorithms. Utilizing the YOLOv5 framework, we train WimpleBin with the collected data to accomplish our objectives. The 81% accuracy achieved in real-world scenarios demonstrates WimpleBin’s impressive ability to effectively categorize different types of waste.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 1","pages":"584 - 596"},"PeriodicalIF":2.7,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939341","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":"Unsaturated hydraulic properties of recycled concrete aggregates blended with autoclaved aerated concrete grains for unbound road base materials in Vietnam","authors":"Van Nam Pham,&nbsp;Tien Dung Nguyen,&nbsp;Hoang Giang Nguyen,&nbsp;Ken Kawamoto","doi":"10.1007/s10163-024-02134-y","DOIUrl":"10.1007/s10163-024-02134-y","url":null,"abstract":"<div><p>Understanding of hydraulic properties is necessary to evaluate the water infiltration and balance in a road course. An easily available hydraulic model can contribute to the design of urban flooding countermeasures and mitigation of urban heat islands by covering roads with pavements. Many studies have evaluated saturated hydraulic conductivity, but few studies of measurements and modeling of unsaturated hydraulic properties such as water retention and unsaturated hydraulic conductivity for roadbase materials have been done. Therefore, this study measured the unsaturated hydraulic properties of typical roadbase materials of recycled concrete aggregates (RCA) using an evaporation method in the laboratory. To improve the water retention capacity, RCA blended with autoclaved aerated concrete (AAC) grains were also used. The results showed that the Gardner–Campbell (GC) model described the hydraulic properties of tested roadbed materials well, and the inclusion of AAC grains increased the water-holding capacity effectively. As a case study, the GC model was incorporated into the Green–Ampt infiltration model to simulate the change in the infiltration rate over time. The simulated results analyzed the water infiltration characteristics well, and this approach would be a good tool to make a quick assessment of the infiltration process of roadbed materials.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"712 - 728"},"PeriodicalIF":2.7,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02134-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564325","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":"Pyrometallurgical eco-recycling for Zn and MnO recovery from spent alkaline and Zn–C batteries","authors":"Seoung Uk Bae,&nbsp;Joo Hyun Park,&nbsp;Kyoung-Tae Park,&nbsp;Jae Hong Shin","doi":"10.1007/s10163-024-02123-1","DOIUrl":"10.1007/s10163-024-02123-1","url":null,"abstract":"<div><p>Most studies on the pyrometallurgical recovery of Zn from spent batteries have focused on assessing the recovery of Zn. However, the separation behavior of Zn from the produced black powder remains unknown. In this study, a pyrometallurgical process for recycling Zn and MnO from the black powder obtained by shredding spent alkaline and Zn–C batteries was developed. The black powder was washed with deionized water to remove KCl and subsequently used for recovering Zn and MnO. Preliminary thermodynamic calculations were performed using Factsage 8.2 and HSC 6.0 to set temperature conditions for the experiment. The washed black powder was placed in an electric vertical resistance furnace and heated to 800 ~ 1300 °C. The ZnO present in the black powder was reduced to Zn_(g) through carbothermal reduction, and then, Zn_(g) was rapidly condensed in a capture cup to recover Zn powder. After heat treatment at 1300 °C for 1 h, 99.39% of the Zn powder was recovered with 98.16% purity. Furthermore, MnO of 99.05% Mn purity remained as a residue from the black powder in the crucible. The results of this study present a crucial step in improving the resource recovery process while minimizing environmental impact, contributing to the advancement of environmentally friendly recycling technologies.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 1","pages":"572 - 583"},"PeriodicalIF":2.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939392","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":"Analysis of chemical-looping method for production of hydrogen gas from sewage sludge","authors":"Toshiyuki Shiraki,&nbsp;Satoshi Okumura,&nbsp;Satoshi Uehara,&nbsp;Hiroki Harada,&nbsp;Masaki Takaoka","doi":"10.1007/s10163-024-02140-0","DOIUrl":"10.1007/s10163-024-02140-0","url":null,"abstract":"<div><p>The objective of this study is to develop a highly efficient technology for producing hydrogen from sewage sludge using chemical-looping technology. In this study, laboratory-scale gasification experiments were conducted on sewage sludge samples. The effects of CaO as a carrier of oxygen or carbon (C) and as a gasification accelerator were evaluated. Lab-scale tests using a tube-type electric furnace showed that gasification of CaO-mixed dry sludge with steam resulted in substantial absorption of CO₂ by CaO at 600 ℃ and 700 ℃ and the concentration of H₂ in the gas reached 70 vol.%. The gasification was significantly accelerated in CaO-mixed steam gasification compared with pyrolysis gasification and steam gasification of dry sludge in the absence of the CaO mixture. The hydrogen gas (H₂) recovery rate also increased, and tar with a high C weight ratio and high calorific value was recovered. Almost the entire C in the sewage sludge was gasified at 800 ℃. Therefore, this method (pyrolysis with steam and CaO) was shown to be effective as one of the hydrogen production methods from sewage sludge.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 1","pages":"558 - 571"},"PeriodicalIF":2.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02140-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939359","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}