Cleaner Waste Systems最新文献_第7页

Experimentation of concrete properties of crumb rubber with SCMs: Mechanical, stiffness, NDT and micro-structural 橡胶屑混凝土力学性能、刚度、无损检测及微结构试验

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-15 DOI: 10.1016/j.clwas.2025.100395

Subham Mishra , Eng Abdirizak Abdi Elmi , Swetapadma Panda , Pradip Sarkar

The construction sector is grappling with an immense lack of natural sand that meets the requisite specifications for use in concrete. At the same time, the disposal of used rubber tires poses ecological, health, and aesthetic challenges due to the difficulty of recycling them. Utilizing industrial waste materials as alternative aggregates and binder components offers a promising solution that enhances environmental awareness, reduces adverse impacts, and promotes sustainable development in the construction industry. This study investigates the performance of M-40 grade concrete incorporating crumb rubber (CR) and binary blends of silica fume (SF) and rice husk ash (RHA). Crumb rubber, sourced from end-of-life tires, was used to replace 10 % and 20 % of natural sand by volume. Simultaneously, cement was partially replaced by binary combinations of SF and RHA in the range of 10–20 % and the fresh properties, mechanical strength, durability, and microstructural characteristics of the resulting crumb rubber concrete (CRC) are evaluated. Natural sand was replaced by CR alone (10–20 %), a reduction in compressive strength of up to 25.4 % was observed but however, this strength loss was significantly mitigated by incorporating binary blends of SF and RHA. Notably, the CRC mix containing 20 % CR, 20 % SF, and 10 % RHA demonstrated improved performance: a 37.5 % increase in compressive strength, a 25 % increase in split tensile strength, and a 42.5 % increase in flexural strength compared to the control mix. These enhancements are attributed to improved particle packing and the formation of additional hydration products from the blended pozzolanic materials, as confirmed by FESEM microstructural analysis. Moreover, this optimized CRC mix exhibited significantly higher static and dynamic moduli of elasticity—16.2 % and 65 % greater than the control mix, respectively—indicating increased stiffness. Non-destructive tests such as Ultrasonic Pulse Velocity (UPV), microhardness, and rebound hammer also showed markedly superior performance in the hardened CRC specimens.

建筑行业正在努力解决严重缺乏符合混凝土使用要求的天然砂的问题。与此同时，废旧橡胶轮胎的处理由于其难以回收，对生态、健康和美学都提出了挑战。利用工业废料作为替代骨料和粘结剂组分提供了一个很有前途的解决方案，可以提高环保意识，减少不利影响，促进建筑业的可持续发展。本研究研究了M-40级混凝土的性能，其中含有橡胶屑（CR）和硅灰（SF）和稻壳灰（RHA）的二元共混物。从报废轮胎中提取的橡胶屑，按体积计算可替代天然砂的10% %和20% %。同时，用10-20 %范围内的SF和RHA二元组合部分替代水泥，并对所得到的碎橡胶混凝土（CRC）的新鲜性能、机械强度、耐久性和微观结构特征进行了评估。将天然砂单独替换为CR(10-20 %)，观察到抗压强度降低高达25.4 %，但是，加入SF和RHA的二元混合物可以显著减轻这种强度损失。值得注意的是，含有20 % CR、20 % SF和10 % RHA的CRC混合物表现出更好的性能：与对照混合物相比，抗压强度增加了37.5% %，劈裂拉伸强度增加了25 %，弯曲强度增加了42.5 %。FESEM显微结构分析证实，这些增强归因于颗粒堆积的改善和混合火山灰材料中额外水化产物的形成。此外，优化后的CRC混合料的静态和动态弹性模量显著高于对照混合料，分别高出16.2 %和65 %，表明刚度增加。超声脉冲速度（UPV）、显微硬度和回弹锤等非破坏性测试也显示了硬化CRC样品的明显优越性能。

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引用次数: 0

Enhanced strength reduced modulus high calcium FA geopolymer concrete containing recycled aggregate concrete and Portland cement 含再生骨料混凝土和硅酸盐水泥的增强型低模量高钙FA地聚合物混凝土

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-14 DOI: 10.1016/j.clwas.2025.100384

Athika Wongkvanklom , Patcharapol Posi , Ampol Wongsa , Yuwadee Zaetang , Wanchai Yodsudjai

In this paper, a reduced modulus high-calcium fly ash geopolymer concrete was developed as a sustainable and environmentally efficient construction material for road pavement. The recycled concrete aggregate (RCA) was used to replace natural coarse aggregate (NA) in making geopolymer concrete. The waste glass fiber reinforced plastic (GFRP) of 2.36–4.75 mm was then added at dosages of 0–2.0 % of fly ash by weight. In the final step, ordinary Portland cement (OPC) was used to replace 0–15 %fly ash to produce a low elastic modulus RCA geopolymer concrete containing GPRF and OPC. Test results showed that the RCA high calcium fly ash geopolymer concrete with 1.5 %GFRP and 15 % OPC gave low elastic modulus of 16.96 GPa with high compressive strength of 41.2 MPa and flexural strength of 3.17 MPa. The RCA was incorporated for its low rigidity, GFPR for its low rigidity and contribution to strength particularly in flexure, and OPC for setting and strength development with curing at ambient temperature. The developed low elastic modulus was 56 % of that of normal OPC concrete of the same compressive strength calculated from ACI318 of 30.18 GPa.

本文研制了一种低模量高钙粉煤灰地聚合物混凝土，作为一种可持续环保的道路路面施工材料。采用再生混凝土骨料（RCA）代替天然粗骨料（NA）制备地聚合物混凝土。废玻璃钢（GFRP）为2.36 ~ 4.75 mm，掺加量为粉煤灰重量的0 ~ 2.0 %。最后一步，用普通硅酸盐水泥（OPC）代替0-15 %粉煤灰，制备含GPRF和OPC的低弹性模量RCA地聚合物混凝土。试验结果表明，GFRP含量为1.5 %、OPC含量为15 %的RCA高钙粉煤灰地聚合物混凝土弹性模量为16.96 GPa，抗压强度为41.2 MPa，抗弯强度为3.17 MPa。RCA因其低刚性而被纳入，gpr因其低刚性和对强度的贡献而被纳入，特别是在弯曲时，OPC因其在室温下固化而凝固和强度发展。开发的低弹性模量是由ac318计算的相同抗压强度的普通OPC混凝土的56 %（30.18 GPa）。

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引用次数: 0

Rolling planning-based closed-loop supply chain logistics model under an unstable demand scenario 需求不稳定情景下基于滚动规划的闭环供应链物流模型

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-14 DOI: 10.1016/j.clwas.2025.100392

Md. Mohibul Islam, Md. Limonur Rahman Lingkon

The supply chain management (SCM) network is struggling to enhance profitability while managing shorter-lived products, particularly electronic items like cell phones. This challenge arises because customers continuously upgrade to new models within a very short timeframe. As a result, maintaining an optimal inventory level in retail outlets becomes difficult to prevent stock-outs and overstock situations in a dynamic market. Furthermore, electronic waste (e-waste) increases significantly, raising additional environmental concerns. This study develops a new closed-loop supply chain (CLSC) logistics model to tackle these issues. This CLSC model is designed by integrating a new production approach known as rolling planning production schedules (RPPS). The main feature of the RPPS is that real market demands dictate the manufacturing quantity at the factory. Additionally, RPPS lead time is included in developing the proposed CLSC model, replacing simultaneous flow systems with periodic flow systems of goods from one stakeholder to its successive stages. Also, K-means algorithm was applied to cluster stores for efficient shipment. Afterward, a second alternative model was also developed to compare the performance of the suggested model, where a fixed production volume manufacturing approach was utilized instead of the RPPS. The findings indicate that the proposed model yields better results than the second alternative. Moreover, by adjusting the model's parameters, a sensitivity analysis is conducted to confirm the model's robustness and the reliability of the results. The sensitivity study demonstrated that the suggested model can produce consistent outcomes when a large-scale problem size and a recurrent simulation environment are employed.

供应链管理（SCM）网络正在努力提高利润率，同时管理寿命较短的产品，特别是像手机这样的电子产品。这一挑战的出现是因为客户在很短的时间内不断升级到新模型。因此，在动态市场中，保持零售网点的最佳库存水平变得难以防止缺货和库存过剩的情况。此外，电子废物（电子废物）显著增加，引起了额外的环境问题。本研究提出一种新的闭环供应链物流模型来解决这些问题。该CLSC模型是通过集成一种称为滚动计划生产时间表（RPPS）的新生产方法而设计的。RPPS的主要特点是实际市场需求决定了工厂的生产数量。此外，在开发拟议的CLSC模型时，RPPS交货时间包括在内，用从一个利益相关者到其连续阶段的货物的周期性流动系统取代同步流动系统。同时，将K-means算法应用到聚类存储中，实现高效的配送。之后，还开发了第二个替代模型来比较所建议模型的性能，其中使用固定产量制造方法而不是RPPS。研究结果表明，所提出的模型比第二种选择产生更好的结果。通过调整模型参数，进行敏感性分析，验证模型的鲁棒性和结果的可靠性。敏感性研究表明，当采用大规模问题规模和循环模拟环境时，所建议的模型可以产生一致的结果。

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引用次数: 0

Physico-mechanical characterization of recycled LDPE blended with EPS as a sustainable rigid alternative to polypropylene 再生LDPE与EPS共混物作为聚丙烯可持续刚性替代品的物理力学特性

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-12 DOI: 10.1016/j.clwas.2025.100383

F.S. Hassan , W.U. Eze , R. Umunakwe , T. Oyegoke , M.I. Uzochukwu

The accumulation of plastic waste, particularly low-density polyethylene (LDPE) and expanded polystyrene (EPS or Styrofoam), presents a growing environmental challenge due to their widespread use and limited biodegradability. In resource-constrained regions like Nigeria, uncompatibilized recycling of LDPE/EPS waste offers a low-cost path to valorize plastic pollution. Addressing this issue requires innovative recycling strategies that can transform waste into valuable materials. This study developed an uncompatibilized sustainable polymer blend from post-consumer waste and investigated the physical and mechanical properties of recycled LDPE blended with EPS under resource-constrained conditions as a sustainable rigid alternative to polypropylene (PP) for static applications, though trade-offs in impact resistance were observed. In achieving this, triplicate samples were statistically validated (ANOVA, p < 0.05), LDPE/EPS blends were prepared in varying weight ratios (80/20, 75/25, 70/30, 65/35, and 60/40) using a two-roll mill and compression molding. A series of tests; density, tensile strength, elongation at break, tensile modulus, flexural strength, hardness, and impact resistance; were conducted on triplicate samples, with results expressed as mean ± standard deviation. In the study, the 60/40 blend achieved a tensile modulus of 202 MPa (surpassing PP's 179 MPa) but exhibited 39 % lower impact strength than PP (0.20 vs. 0.33 J/mm²). However, increasing EPS content reduced elongation at break, indicating increased brittleness due to EPS's rigidity, though flexural strength (23.77 MPa) remains 56 % lower than PP (53.59 MPa), restricting load-bearing use. Findings validated suitability for rigid, static applications. Beyond performance, the blend contributes to plastic waste reduction and supports circular economy initiatives by transforming problematic waste materials into functional products.

塑料废物的积累，特别是低密度聚乙烯（LDPE）和膨胀聚苯乙烯（EPS或聚苯乙烯泡沫塑料），由于其广泛使用和有限的生物降解性，提出了一个日益严峻的环境挑战。在尼日利亚等资源受限的地区，不相容回收LDPE/EPS废物为减少塑料污染提供了一种低成本的途径。解决这个问题需要创新的回收战略，将废物转化为有价值的材料。本研究从消费后废物中开发了一种不相容的可持续聚合物共混物，并研究了在资源有限的条件下，再生LDPE与EPS共混物作为静态应用中聚丙烯（PP）的可持续刚性替代品的物理和机械性能，尽管观察到了抗冲击性的权衡。为了实现这一目标，对三个重复样品进行了统计验证（方差分析，p <； 0.05），使用双辊轧机和压缩成型，以不同的重量比（80/20、75/25、70/30、65/35和60/40）制备了LDPE/EPS共混物。一系列测试；密度、抗拉强度、断裂伸长率、拉伸模量、抗弯强度、硬度、抗冲击性；对三个样本进行分析，结果以均数±标准差表示。在研究中，60/40共混物的拉伸模量为202 MPa（超过PP的179 MPa），但其冲击强度比PP低39 %（0.20比0.33 J/mm²）。然而，EPS含量的增加降低了断裂伸长率，表明由于EPS的刚性而增加了脆性，尽管挠曲强度（23.77 MPa）仍然比PP（53.59 MPa）低56 %，限制了承重使用。结果验证了刚性、静态应用程序的适用性。除了性能之外，这种混合物还有助于减少塑料废物，并通过将有问题的废物转化为功能性产品来支持循环经济倡议。

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引用次数: 0

Trivalent chromium adsorption on activated carbon derived from biowaste: Kinetic, isotherm, and thermodynamic studies 三价铬在生物废弃物活性炭上的吸附：动力学、等温线和热力学研究

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-12 DOI: 10.1016/j.clwas.2025.100391

Md. Abul Hashem, Tasnim Zaman Afrin, Sumaiya Tasnim, Sasbir Rahman Sium, Md. Mukimujjaman Miem, Md. Enamul Hasan Zahin

The basic chromium sulfate is used in leather tanning to stabilize the collagen protein. In tanning, a large amount of trivalent chromium is released into wastewater, which harms the environment, especially aquatic bodies. This research focuses on the adsorption capacity of trivalent chromium on activated pineapple crown biowaste adsorbent (APCBA). The equipped adsorbent was characterized using an Energy Dispersive X-ray Spectrometer (EDS), Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy, and pHpzc (point of zero charge). A batch assessment was performed for chromium adsorption on APCBA. The trivalent chromium removal efficacy was 98.50 % at an APCBA dose of 0.5 g/50 mL wastewater for a short stirring time (15 min), with a 2 h settling at 30℃ temperature. The reductions in environmental pollutants BOD, COD, and Cl^- were 62.4 %, 55.3 %, and 49.2 %, respectively. The morphological changes of pure and Cr-loaded APCBA were well documented through SEM micrographs and EDS spectra. The presence of functional groups on Cr-loaded APCBA ensures the adsorption of pollutants. The Freundlich isotherm and PSO kinetics of linear fit revealed a good fit for Cr adsorption with correlation coefficient (R²) values of 0.9896 and 0.9999, respectively. Thermodynamic studies indicate the reaction was exothermic and spontaneous. pHpzc assessment of APCBA represents the Cr adsorption mechanism. Therefore, the application of APCBA in wastewater treatment, especially chrome tanning wastewater, is recommended before discharging it into the environment.

碱式硫酸铬用于皮革制革，以稳定胶原蛋白。在制革过程中，大量三价铬被释放到废水中，对环境尤其是水生生物造成危害。研究了活性凤梨冠生物废弃物吸附剂（APCBA）对三价铬的吸附性能。利用x射线能谱仪（EDS）、扫描电镜（SEM）、傅里叶变换红外光谱（FTIR）和零电荷点（pHpzc）对所制备的吸附剂进行了表征。对APCBA对铬的吸附性能进行了批量评价。APCBA投加量为0.5 g/50 mL废水，搅拌时间短（15 min）， 30℃沉淀时间2 h，三价铬去除率为98.50 %。环境污染物BOD、COD和Cl-分别减少62.4 %、55.3% %和49.2% %。通过扫描电镜和能谱分析，完整地记录了纯APCBA和载cr APCBA的形态变化。负载cr的APCBA上官能团的存在保证了其对污染物的吸附。Freundlich等温线和PSO线性拟合动力学结果表明，吸附Cr的相关系数（R2）分别为0.9896和0.9999。热力学研究表明该反应是自发的放热反应。pHpzc评价代表了APCBA对Cr的吸附机理。因此，建议在废水，特别是铬鞣废水排放到环境之前，应用APCBA进行处理。

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引用次数: 0

Examining the impact of visual prompt and intervention campaign materials on waste sorting: Knowledge, attitudes, and practices (KAP) and a mixed-methods approach 检查视觉提示和干预运动材料对废物分类的影响：知识，态度和实践（KAP）和混合方法方法

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-10 DOI: 10.1016/j.clwas.2025.100390

Rakotoarisoa Maminirina Fenitra, Emenda Sembiring, Aisya Rahmania Dangkua, Zayinatun Biladiyah Al Khoeriyah

This study uses a mixed-methods design to examine university waste management practices, particularly waste sorting on campus. It combines quantitative surveys to assess the baseline perception of knowledge, attitude, and practice and evaluate behavioral changes and patterns among the participants, with experimental studies to examine the impact and effectiveness of the intervention materials. The data for the quantitative approach were collected in two steps: survey 1 (n = 154) and survey 2 (n = 69) participants. The 69 participants in Survey 2 also participated in the experimental study, which employed a within-subjects design. The convenience sampling technique was used to collect the data due to its practicality and efficiency. The survey found that the respondents have a high Knowledge, attitude, and practice toward waste sorting, while a gap was observed between knowledge, perception, and waste-sorting practices. Moreover, visual prompts can bridge these gaps; there was a significant improvement when visual prompts were used to assist waste sorting. Missorted waste dropped from 40.9 % at baseline (Task 1) to 10.2 % after visual prompts (Task 2), with the green bin improving most. Task 3 further reduced errors to 8.3 %, a 32.6-point decrease from baseline. Correspondingly, the observation also emphasised the effectiveness of combining visual prompts and intervention campaign materials to promote waste sorting knowledge and practices. The results of this research contribute to the current state of knowledge and guide policymakers and waste management managers in designing effective waste management strategies.

本研究采用混合方法设计来考察大学废物管理实践，特别是校园废物分类。它结合了定量调查来评估参与者对知识、态度和实践的基本认知，评估参与者的行为变化和模式，并结合实验研究来检验干预材料的影响和有效性。定量方法的数据分为两步收集：调查1 （n = 154）和调查2 （n = 69）参与者。调查2中的69名参与者也参与了实验研究，该研究采用了受试者内设计。采用方便抽样法采集数据，具有实用性和高效性。调查发现，受访者对垃圾分类有较高的知识、态度和实践，但在知识、认知和垃圾分类实践之间存在差距。此外，视觉提示可以弥补这些差距；当使用视觉提示来辅助废物分类时，有显著的改善。不分类垃圾从基线时的40.9 %（任务1）下降到视觉提示后的10.2 %（任务2），其中绿色垃圾箱改善最大。任务3进一步将错误率降低到8.3 %，比基线降低了32.6个点。与此同时，观察亦强调结合视觉提示和干预活动材料，推广废物分类知识和做法的有效性。本研究的结果有助于了解现状，并指导决策者和废物管理管理者设计有效的废物管理策略。

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引用次数: 0

Biochar as a catalyst for methane enhancement in anaerobic digestor containing cow dung, food waste, and rice straw: An experimental and statistical study 生物炭在含牛粪、食物垃圾和稻草的厌氧沼气池中作为甲烷强化催化剂的实验和统计研究

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-10 DOI: 10.1016/j.clwas.2025.100388

P. Sivakumar , R. Saravanane , S. Mohan , B. Sankar

There is a growing interest in meeting the rising energy demand from a more sustainable source. Biomass energy has the potential to act as a sustainable and environmentally friendly alternative to fossil fuels and help achieve net-zero emissions in the near future. This study proposes an economically feasible method to enhance biogas efficiency by co-digesting cow dung (CD), food waste (FW), rice straw (RS), with the addition of Coconut husk Bio-Char (BC). The present research aims to study the variation in the biogas yield from biochar addition by monitoring the alteration in the influential parameters such as pH, temperature, total solids (TS), volatile solids (VS), volatile fatty acids (VFA), and carbon to nitrogen ratio (C/N). The biochar addition stabilized both pH and temperature due to its intrinsic properties by transforming intermediates like H₂S and CO₂. It also significantly increased the VFA accumulation and degradation attributed to the buffering ability of the biochar. The methane yield of blends with biochar was significantly higher than that of the blends without biochar. The mixture CD 30: FW 50:RS 20 containing biochar showed a peak methane yield of 165.08 mL. The statistical model developed using response surface methodology (RSM) predicted the methane yield with an accuracy of 99.07 % and a statistical significance level of 0.05. The accuracy of the RSM model was validated by comparing it with the existing Gompertz kinetic model. The performance evaluation error metrics, Coefficient of Correlation (R), and Root Mean Square Error (RMSE) results were observed to be 0.966, 0.925, and 62.89 mL/gVS, 87.24 mL/gVS for RSM model and Gompertz model, indicating the superior performance of the RSM model developed in this study.

人们对用更可持续的能源来满足日益增长的能源需求越来越感兴趣。生物质能有潜力成为化石燃料的可持续和环境友好型替代品，并有助于在不久的将来实现净零排放。本研究提出了一种经济可行的方法，通过混合消化牛粪（CD）、食物垃圾（FW）和稻草（RS），并添加椰子壳生物炭（BC）来提高沼气效率。本研究旨在通过监测pH、温度、总固形物（TS）、挥发性固形物（VS）、挥发性脂肪酸（VFA）、碳氮比（C/N）等影响因素的变化，研究生物炭添加过程中沼气产量的变化。添加生物炭通过转化H2S和CO2等中间体来稳定pH和温度。由于生物炭的缓冲能力，它也显著增加了VFA的积累和降解。加生物炭的混合物甲烷产率显著高于不加生物炭的混合物。含生物炭的混合物CD 30: FW 50:RS 20甲烷产率峰值为165.08 mL。利用响应面法（RSM）建立的统计模型预测甲烷产量的准确率为99.07 %，统计显著性水平为0.05。通过与现有的Gompertz动力学模型的比较，验证了RSM模型的准确性。RSM模型和Gompertz模型的性能评价误差指标、相关系数(R)和均方根误差（RMSE）结果分别为0.966、0.925和62.89 mL/gVS、87.24 mL/gVS，表明本研究建立的RSM模型具有较好的性能。

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引用次数: 0

Environmental and economic impact assessment of single-use laboratory plastic waste: A case study 一次性实验室塑料废物的环境和经济影响评估：一个案例研究

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-10 DOI: 10.1016/j.clwas.2025.100389

Yi Huan Tan , Hwai Chyuan Ong , Raja Affendi Raja Ali , Lai Ti Gew

Research labs rely on disposable plastics for sterility, safety, and affordability, but their environmental and economic impact has been largely overlooked. While the impact of single-use plastics is well-known, laboratory waste poses an additional challenge due to necessary treatment processes. Hence, this study investigated both the environmental and economic impact associated with single-use plastic waste management in a university laboratory, serving as a case study for Southeast Asia. A retrospective analysis was conducted on laboratory plastic waste management between 2014 and 2023 at a Malaysian university. Three waste management methods, i.e. incineration, landfilling with microwave pre-treatment, and landfilling with ozone pre-treatment, were implemented at consecutive intervals. Environmental impact was assessed by quantifying the GHG emissions in terms of carbon dioxide equivalent (CO₂eq) emissions, while economic assessment was evaluated based on invoiced costs. A total of 29,180.11 kg of single-use plastic waste resulted in 46,420.08 kg CO₂eq emissions and a cumulative disposal cost of RM 84,890.49. Among the three methods, landfilling with ozone pre-treatment demonstrated the lowest environmental impact (1.55 kg CO₂eq/kg) and cost (RM 2.79/kg). Direct emission from the end-of-life stage was the main source of GHG emissions, while disposal fees represented the largest portion of total costs. In light of these findings, it is crucial for universities and research institutions to recognise the environmental and economic impact of laboratory single-use plastics. This case study will serve as a foundation for advancing pre-treatment technologies and future end-of-life solutions.

研究实验室依赖于一次性塑料的无菌性、安全性和可负担性，但它们对环境和经济的影响在很大程度上被忽视了。虽然一次性塑料的影响是众所周知的，但由于必要的处理过程，实验室废物构成了额外的挑战。因此，本研究在一所大学实验室调查了与一次性塑料废物管理相关的环境和经济影响，作为东南亚的案例研究。对马来西亚一所大学2014年至2023年的实验室塑料废物管理进行了回顾性分析。垃圾焚烧、微波预处理堆填和臭氧预处理堆填三种废物处理方法相继实施。对环境影响的评估是根据二氧化碳当量（CO₂eq）排放量对温室气体排放量进行量化，而经济评估是根据发票成本进行评估的。总共29,180.11 公斤一次性塑料废物导致46,420.08 公斤二氧化碳当量排放，累计处理成本为84,890.49令吉。三种方法中，臭氧预处理填埋对环境的影响最低（1.55 kg CO₂eq/kg），成本最低（RM 2.79/kg）。使用寿命结束阶段的直接排放是温室气体排放的主要来源，而处理费占总成本的最大部分。鉴于这些发现，大学和研究机构认识到实验室一次性塑料对环境和经济的影响至关重要。本案例研究将为推进预处理技术和未来的生命终结解决方案奠定基础。

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引用次数: 0

Bibliometric analysis on sustainable waste management: Special evidence from municipal solid wastes 可持续废物管理的文献计量分析：来自城市固体废物的特殊证据

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-10 DOI: 10.1016/j.clwas.2025.100386

Md. Sohel Rana , Md. Kutub Uddin , Md. Shawan Uddin , Md. Ikbal Hossain , Md. Sohel Rana

The rapid growth of global population, coupled with industrialization, urbanization, and quickly advancing technology has significantly contributed to the escalation of environmental issues. In addition, increased manufacturing, the exploitation of natural resources, and rapid consumption all contribute to huge waste production in cities. Moreover, effective management of municipal solid waste management has become a growing environmental concern worldwide. This study reviews research on sustainable municipal solid waste management from 1994 to 2024 using performance evaluation techniques. This study employs RStudio software to conduct bibliometric analysis, using data retrieved from the Web of Science database. The primary search keywords were related to sustainable waste management with a focus on municipal solid waste management. A total of 4778 publications is found with these keywords. This study finds “Tsang Dcw” as the most dominant researcher in this field with highest publications and citations. Moreover, the country-wise analysis indicated that the United States contributed the largest number of publications, whereas China emerged as the most cited country in the field of sustainable waste management. “Journal of Cleaner Production” is identified as the journal with highest citation while “sustainability” records highest documents. The findings of this comprehensive review are expected to serve as a valuable resource for researchers that will potentially reduce the time typically required for conducting a thorough literature review. Finally, policymakers can receive a valuable viewpoint to manage solid waste in the municipality in a sustainable manner.

全球人口的快速增长，加上工业化、城市化和技术的快速发展，大大加剧了环境问题的升级。此外，制造业的发展、自然资源的开发和快速消费都导致了城市中大量的废物产生。此外，有效管理城市固体废物管理已成为全世界日益关注的环境问题。本文利用绩效评价技术对1994 ~ 2024年我国城市固体废物可持续管理的研究进行了综述。本研究采用RStudio软件进行文献计量分析，数据来源于Web of Science数据库。主要搜索关键词与可持续废物管理有关，重点是城市固体废物管理。使用这些关键词的出版物共有4778篇。本研究发现“Tsang Dcw”是该领域最具主导地位的研究者，发表论文和被引次数最多。此外，国别分析表明，美国的出版物数量最多，而中国在可持续废物管理领域成为被引用最多的国家。《清洁生产杂志》被认为是被引用次数最多的期刊，《可持续发展》被认为是被引用次数最多的期刊。这项综合综述的研究结果有望为研究人员提供宝贵的资源，这将有可能减少进行全面文献综述所需的时间。最后，决策者可以获得一个有价值的观点，以可持续的方式管理城市的固体废物。

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引用次数: 0

Assessing the viability of a proposed third-party reusable foodware system: An environmental and economic comparison 评估提议的第三方可重复使用食品系统的可行性：环境和经济比较

IF 3.9

Cleaner Waste Systems

Pub Date : 2025-08-10 DOI: 10.1016/j.clwas.2025.100387

Margaret Milani , William Bridges , Andrew Hurley , James Sternberg

Single-use plastic foodware production continues to rise despite the negative impacts it has on the environment. This continued growth is fueled by the increasing popularity of single-use plastic foodware for food service. Although previous studies have found reusable foodware to be a more environmentally, and economically, favorable alternative, the capital required to establish and maintain a reusable foodware system remains a common barrier to its implementation. This study aims to address this problem by assessing the environmental and economic viability of a proposed third-party company, equipped with an industrial dishwasher and commercial truck that could pick up and deliver reusable foodware to participating food service providers. The results of the Life Cycle Analysis revealed that the reusable foodware must be reused at least 25 times within the proposed system before having less environmental impacts in every category. The economic analysis concluded that the reusable foodware system could generate an annual profit while also saving participating food providers upwards of $0.07 per place setting. Ultimately, the third-party reusable foodware system could be an environmentally and economically favorable alternative to single-use plastic foodware.

尽管一次性塑料餐具对环境产生了负面影响，但其产量仍在持续增长。这种持续的增长是由用于食品服务的一次性塑料餐具日益普及所推动的。尽管先前的研究发现可重复使用的餐具是一种更环保、更经济、更有利的选择，但建立和维护可重复使用的餐具系统所需的资金仍然是其实施的常见障碍。本研究旨在通过评估第三方公司的环境和经济可行性来解决这一问题，该公司配备了工业洗碗机和商用卡车，可以将可重复使用的餐具运送到参与的食品服务提供商。生命周期分析的结果显示，可重复使用的餐具必须在拟议的系统内重复使用至少25次，才能减少对每个类别的环境影响。经济分析得出的结论是，可重复使用的餐具系统每年可以产生利润，同时也为参与的食品供应商节省了每份餐具0.07美元以上的费用。最终，第三方可重复使用的餐具系统可以成为一次性塑料餐具的环境和经济上有利的替代品。

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引用次数: 0