Waste Management Bulletin最新文献_第8页

Treated cheese whey as a promising nutrient solution for hydroponic cultivation of lettuce, cabbage and tomato 经过处理的干酪乳清是一种很有前途的营养液，可用于生菜、卷心菜和番茄的水培栽培

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-07-17 DOI: 10.1016/j.wmb.2025.100229

Karina A. Ramirez-Flores, Gilberto J. Colina-Andrade, Ruly Teran-Hilares, Kevin Tejada-Meza

The dairy industry is among of the fastest-growing agro-industries worldwide, driven by the rising demand for dairy products. However, it is also a major source of environmental pollution within the food sector due to the large volumes of whey it generates. This study presents a comparative analysis of alkaline-treated whey as a nutrient solution in hydroponic systems for the cultivation of lettuce (Lactuca sativa), cabbage (Brassica oleracea), and tomato (Solanum lycopersicum), by assessing various plant growth parameters. Alkaline precipitation at pH 11 resulted in substantial reductions in chemical oxygen demand (92.82 %), biological oxygen demand (75.58 %), phosphorus (22.12 %), hardness (75.62 %), and total dissolved solids (48.26 %). When diluted with freshwater at a 1:20 ratio, the treated whey exhibited performance comparable to the commercial hydroponic solutions. Notably, tomato exhibited showed excellent results, with 94 % similarity in cluster count, 73.33 % similarity in comparison to the control, and 97.13 % similarity in dry weight. Therefore, treated cheese whey presents a viable alternative to chemical nutrients in hydroponic systems.

乳制品行业是全球增长最快的农业产业之一，受乳制品需求增长的推动。然而，由于它产生大量乳清，它也是食品部门环境污染的主要来源。本研究通过评估各种植物生长参数，对碱处理乳清作为营养液在生菜（Lactuca sativa）、卷心菜（Brassica oleracea）和番茄（Solanum lycopersicum）水培系统中的栽培进行了比较分析。pH值为11的碱性沉淀导致化学需氧量（92.82%）、生物需氧量（75.58%）、磷（22.12%）、硬度（75.62%）和总溶解固形物（48.26%）大幅降低。当以1:20的比例稀释淡水时，处理后的乳清表现出与商业水培溶液相当的性能。其中，番茄的聚类数相似度为94%，与对照相似度为73.33%，干重相似度为97.13%。因此，处理过的奶酪乳清是水培系统中化学营养物的可行替代品。

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引用次数: 0

Banana waste valorisation and the development of biodegradable biofilms 香蕉废弃物的再生利用及生物可降解生物膜的开发

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-05-05 DOI: 10.1016/j.wmb.2025.100213

Sony Kumari , Rahel Debbarma , Munquad Habibi , Shakil Haque , Penna Suprasana

Bananas (Musa paradisiaca) are among the most important tropical and subtropical crops, playing a vital role in global nutrition, food security, and regional economies. However, their large-scale cultivation generates substantial biomass waste-including rhizomes, pseudostems, leaves, rachis, fruit-bunch-stems, and peels-which remains underutilized. This review addresses the growing research need to valorize banana agro-waste, particularly green bananas and peels, for the development of biodegradable biofilms as sustainable alternatives to plastic packaging. The novelty of this work lies in its focused examination of banana-derived biopolymers, such as starch and fibre, and their capacity to form eco-friendly, mechanically robust, and biodegradable films suitable for food preservation. In addition to packaging applications, the review explores the broader multifunctionality of banana plant components across textiles, medicine, and bio-based industries. By synthesizing current literature, this article presents a comprehensive overview of banana waste utilization for both economic and environmental sustainability. It also identifies existing research gaps and outlines future directions to optimize biofilm formulations and encourage holistic, waste-minimizing approaches in banana production. Ultimately, this review highlights the untapped potential of banana waste as a valuable resource for advancing circular bioeconomy and sustainable innovation.

香蕉（Musa paradisiaca）是最重要的热带和亚热带作物之一，在全球营养、粮食安全和区域经济中发挥着至关重要的作用。然而，它们的大规模种植产生了大量的生物质废物，包括根茎、假茎、叶、轴、果束茎和果皮，这些废物仍未得到充分利用。本文综述了日益增长的研究需求，即对香蕉农业废弃物，特别是青香蕉和香蕉皮进行价值评估，以开发可生物降解的生物膜，作为塑料包装的可持续替代品。这项工作的新颖之处在于它重点研究了香蕉衍生的生物聚合物，如淀粉和纤维，以及它们形成适合食品保存的生态友好、机械坚固和可生物降解薄膜的能力。除了包装应用外，该综述还探讨了香蕉植物成分在纺织、医药和生物基工业中的更广泛的多功能。本文在综合现有文献的基础上，对香蕉废弃物的经济和环境可持续性利用进行了综述。它还确定了现有的研究差距，并概述了优化生物膜配方和鼓励香蕉生产中采用整体的、尽量减少废物的方法的未来方向。最后，本综述强调了香蕉废物作为推进循环生物经济和可持续创新的宝贵资源的未开发潜力。

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引用次数: 0

Evaluation and characterization of biochar and briquettes from agricultural wastes for sustainable energy production 用于可持续能源生产的农业废弃物生物炭和压块的评价和表征

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-04-10 DOI: 10.1016/j.wmb.2025.100198

Olufunke O. Oyebamiji , Akin S. Olaleru , Raifu B. Oyeleke , Lauretta N. Ofodile

Utilizing agricultural waste presents a promising solution for sustainable energy production and efficient waste management. This study focuses on producing and characterizing biochar and briquettes derived from the pyrolysis of seven abundant agricultural residues: Corn Cob, Groundnut shell, Rice Bran, Sawdust, Corn Straw, Dry Leaf, and Sugar Cane peel. The process involves subjecting the raw materials to controlled pyrolysis conditions and compaction into briquettes. FTIR analysis of biochar and raw dried samples, physicochemical analysis, and percentage yield on biochar, and calorific value on the briquettes produced were conducted to characterize the agricultural wastes. The physicochemical parameters of their biochar revealed significant differences in their composition. The pH ranged from 8.76 (Dry leaves) to 14.09 (Corn cob), Cation Exchange Capacity ranged from 1.55 − 7.39 cmol (+)/Kg, moisture content ranged from 2.74 − 6.36 %, volatile matter ranged from 1.85 – 6.87 %, ash content ranged from 16.70 – 79.25 %, and fixed carbon ranged from 11.30 – 72.07 %. The percentage yield of biochar from raw materials ranged from 8.6 % (sugarcane) to 27 % (groundnut shell), while the calorific value of the briquettes produced ranged from 1,868.57 KJ/g (sugarcane) to 55,511.2 KJ/g (Rice bran). The FTIR analysis revealed distinct spectral peaks for all charred waste compared to their raw counterparts, indicating structural changes during pyrolysis. These findings show the potential of some agricultural waste-derived briquettes as an efficient, sustainable, and renewable alternative fuel source. The characterization tests demonstrate their viability as a practical energy source, offering agricultural waste management solutions.

利用农业废物为可持续能源生产和有效废物管理提供了一个有前途的解决方案。本研究主要研究了从玉米芯、花生壳、米糠、锯末、玉米秸秆、干叶和甘蔗皮等7种丰富的农业废弃物中提取生物炭和压块的制备和表征。该过程包括将原料置于受控的热解条件下并压实成块。通过对生物炭和原始干燥样品的红外光谱分析、物理化学分析、生物炭的产率和产生的压块的热值来表征农业废弃物。两种生物炭的理化参数在组成上存在显著差异。pH值为8.76（干叶）~ 14.09（玉米芯），阳离子交换容量为1.55 ~ 7.39 cmol (+)/Kg，水分含量为2.74 ~ 6.36%，挥发物含量为1.85 ~ 6.87%，灰分含量为16.70 ~ 79.25%，固定碳含量为11.30 ~ 72.07%。原料中生物炭的产率从8.6%（甘蔗）到27%（花生壳）不等，而产生的型煤的热值从1868.57 KJ/g（甘蔗）到55,511.2 KJ/g（米糠）不等。FTIR分析显示，与原始垃圾相比，所有烧焦的垃圾都有明显的光谱峰，表明热解过程中的结构变化。这些发现表明，一些农业废物衍生型煤有潜力成为一种高效、可持续和可再生的替代燃料来源。表征测试证明了它们作为一种实用能源的可行性，提供了农业废物管理解决方案。

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引用次数: 0

Enhancing the performance of natural clay for nitrate ions removal from groundwater and wastewater of the region of Taroudant (Souss-Massa Morocco): mechanism, optimization and evolution toxicity 提高天然粘土去除Taroudant （Souss-Massa Morocco）地区地下水和废水中硝酸盐离子的性能：机理、优化和演化毒性

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-08-19 DOI: 10.1016/j.wmb.2025.100239

Abdallah Assouani , Abdelkader Dabagh , Mohamed EL-Habacha , Guellaa Mahmoudy , Mhamed Abali , Mohamed Chiban , Naima Alahiane , Mohamed Zerbet

This paper discusses the adsorption mechanism of nitrate ions using natural clay from an aqueous solution. The adsorbent’s heterogeneous structure with deep voids and significant porosity was also seen under the scanning electron microscopy (SEM). This structure is assumed to be essential for binding and collecting nitrate ions onto the adsorbent surface. Different functional groups have been identified to facilitate the adsorption of nitrate ions onto adsorbent. The Brunauer Emmett et Teller (BET) surface examination revealed that the natural raw clay (NRC) surface is around 6.44 m²/g. With a 98 % correlation coefficient, the Langmuir isotherm is the most appropriate model to explain the adsorption process. 241.18 mg/g was the maximum adsorption capacity for nitrate ions at 291 K. The pseudo second-order model represents a good explanation of adsorption kinetics. According to thermodynamic calculations, adsorption occurs spontaneously and exothermically on natural clay. The natural clay was recycled; the removal of nitrates was 42.08 % after the third cycle.The results of Taguchi experimental design (TED), analysis of variance (ANOVA), and response surface methodology (RSM) showed that initial concentration, contact time, and pH are the most significant factors influencing the efficiency of removal with a contribution of 76.96 %, 11.29 %, and 4.3 %, respectively. The maximum removal efficiency of nitrate ions in optimal operating conditions was 82.67 %. Which at the optimal conditions of 0.5 g/L, 360 min, 1000 mg/L, 18 °C, pH 4 for nitrate ions. The results confirm the effectiveness of natural clay in lentil seed germination and nitrate removal from water.

探讨了天然粘土对水溶液中硝酸盐离子的吸附机理。扫描电镜（SEM）观察到吸附剂的非均质结构，孔隙深，孔隙率高。这种结构被认为是结合和收集硝酸盐离子到吸附剂表面所必需的。不同的官能团有助于硝酸盐离子在吸附剂上的吸附。Brunauer Emmett et Teller （BET）表面检测显示，天然原料粘土（NRC）表面约为6.44 m2/g。Langmuir等温线具有98%的相关系数，是解释吸附过程最合适的模型。291 K时对硝酸盐离子的最大吸附量为241.18 mg/g。伪二阶模型很好地解释了吸附动力学。根据热力学计算，吸附在天然粘土上是自发和放热的。天然粘土被回收；第三次循环后，硝酸盐的去除率为42.08%。田口试验设计（TED）、方差分析（ANOVA）和响应面法（RSM）结果表明，初始浓度、接触时间和pH是影响去除率的最显著因素，其贡献率分别为76.96%、11.29%和4.3%。在最佳操作条件下，硝酸盐离子的最大去除率为82.67%。其中在0.5 g/L, 360 min, 1000 mg/L, 18°C， pH 4的最佳条件下对硝酸盐离子。结果证实了天然粘土对小扁豆种子萌发和水中硝酸盐去除的有效性。

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引用次数: 0

Analysing disparities between household food waste metrics and their socioeconomic drivers in Chamwino District, Tanzania 分析坦桑尼亚Chamwino地区家庭食物浪费指标及其社会经济驱动因素之间的差异

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-04-11 DOI: 10.1016/j.wmb.2025.100206

Denis M. Silayo, Abiud J. Bongole, Mary Kulwijila

Food waste measurement has garnered significant attention in recent years due to its critical role in devising interventions to mitigate the environmental, social, and economic impacts of food waste. However, the absence of a standardized protocol for Food Waste (FdW) quantification remains a key obstacle in formulating and evaluating effective minimization strategies. This study utilizes Bland-Altman plots and regression analysis to evaluate the agreement between Self-Reported Food Waste (SR_FW) and Direct Weighing Food Waste (DW_FW) in a sample of 402 randomly selected households in Chamwino District, Tanzania. It also investigates the socioeconomic factors influencing disparities between these measurement methods, providing valuable insights into the drivers of these discrepancies. The findings reveal a bias of 0.100067 Kilogram (kg), indicating that SR_FW measurements significantly underestimate household FdW. On average, respondents report edible FdW of 0.032703 kg through SR_FW, while DW_FW measures 0.132769 kg. Furthermore, gender, age, marital status, house ownership, awareness, and price and cost sensitivity are identified as significant factors influencing the bias between the two methods. The study concludes by advocating for increased awareness creation, the combined use of SR_FW and DW_FW methods, and measures to foster household accountability. These recommendations aim to enhance the accuracy of FdW quantification and support the development of effective waste reduction strategies.

近年来，由于在设计干预措施以减轻食物浪费对环境、社会和经济的影响方面发挥了关键作用，食物浪费测量引起了极大的关注。然而，缺乏食物浪费量化的标准化方案仍然是制定和评估有效的最小化战略的主要障碍。本研究利用Bland-Altman图和回归分析来评估坦桑尼亚Chamwino地区402个随机抽取的家庭样本中自我报告食物浪费（SRFW）和直接称重食物浪费（DWFW）之间的一致性。它还调查了影响这些测量方法之间差异的社会经济因素，为这些差异的驱动因素提供了有价值的见解。研究结果显示偏差为0.100067 kg (kg)，表明SRFW测量显著低估了家庭FdW。平均而言，受访者通过SRFW报告的可食用FdW为0.032703 kg，而DWFW的测量为0.132769 kg。此外，性别、年龄、婚姻状况、房屋所有权、意识以及价格和成本敏感性被认为是影响两种方法偏差的重要因素。该研究的结论是提倡提高认识，结合使用家庭贫困妇女和家庭贫困妇女的方法，并采取措施促进家庭问责制。这些建议旨在提高外置废物量化的准确性，并支持制定有效的减少废物策略。

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引用次数: 0

Valorization of food processing waste byproducts for essential oil production and their application in food system 食品加工废弃物精油生产副产物的价值化及其在食品系统中的应用

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-04-05 DOI: 10.1016/j.wmb.2025.100200

Elsayed AE Ali , Dina Mostafa Mohammed , Fatma Abd El Gawad , Mohamed Ahmed Orabi , Rakesh Kumar Gupta , Prem Prakash Srivastav

Essential oils (EOs) are valuable sources of bioactive compounds derived from food processing waste by-products (FPWB). This study focuses on the valorization of FPWB to enhance both the quantity and quality of EOs extracted using eco-friendly methods, with applications in human and animal food systems. Green extraction techniques, such as microwave-assisted extraction, ultrasound extraction, and cold plasma methods, offer numerous advantages. These include improved extraction efficiency, higher yields, reduced waste, and the preservation of EO quality. Additionally, these methods promote sustainability by lowering energy consumption. The study highlights the positive impact of EOs across various sectors. EOs act as natural preservatives in human food systems, enhancing food safety and stability. Animal nutrition contributes to improved animal health and feed palatability. The extraction process and the chemical composition of EOs significantly influence physicochemical properties. The quality and composition of EOs are largely determined by the extraction techniques used, which positively affect their physicochemical properties. While these methods are associated with challenges, advanced delivery systems and ongoing research in green extraction techniques hold promise for overcoming these limitations and optimizing the application of EOs in food preservation, animal nutrition, and other fields. Continued advancements in technology and innovation will drive progress in this area.

精油（EOs）是从食品加工废弃物副产品（FPWB）中提取的生物活性化合物的宝贵来源。本研究的重点是FPWB的增值，以提高生态友好的方法提取的EOs的数量和质量，并在人类和动物食品系统中的应用。绿色提取技术，如微波辅助提取、超声提取和冷等离子体方法，具有许多优点。这些措施包括提高萃取效率、提高产量、减少浪费和保持EO质量。此外，这些方法通过降低能源消耗促进可持续发展。该研究强调了EOs对各个行业的积极影响。EOs在人类食品系统中充当天然防腐剂，增强食品安全性和稳定性。动物营养有助于改善动物健康和饲料的适口性。精油的提取工艺和化学成分对其理化性质有显著影响。精油的质量和成分在很大程度上取决于所使用的提取技术，这对它们的物理化学性质有积极的影响。虽然这些方法存在挑战，但先进的输送系统和正在进行的绿色提取技术的研究有望克服这些限制，并优化EOs在食品保存、动物营养和其他领域的应用。技术和创新的持续进步将推动这一领域的进步。

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引用次数: 0

Hypothetical scenarios for circular bioeconomy preferences in the Bali metropolitan area 巴厘岛都市圈循环生物经济偏好的假设情景

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-03-26 DOI: 10.1016/j.wmb.2025.100197

I Wayan Koko Suryawan , Sapta Suhardono , Ari Rahman , Thi Thanh Thuy Phan , Chun-Hung Lee

This study investigates the preferences and willingness of residents, including local and foreign residents, in the Bali metropolitan area to participate in various waste management initiatives aimed at promoting a circular bioeconomy. Bali, a major tourist center in the Global South, presents unique challenges and opportunities for sustainable waste management. Using a choice experiment framework, we explored preferences for managing paper, food, and garden waste through different scenarios. Scenario 1 focused on collecting and separating waste to support existing infrastructure, Scenario 2 emphasized source reduction and participation, and Scenario 3 integrated a comprehensive circular economy approach. The study reveals significant support for comprehensive waste management practices, with high marginal willingness to participate values for initiatives such as collecting and processing paper waste for energy conversion, independent composting of food waste, and community-based composting of garden waste. These findings highlight the importance of community engagement and tailored strategies in developing sustainable waste management programs. The results provide valuable insights for policymakers and stakeholders to design effective circular bioeconomy policies that enhance local economic self-sufficiency and contribute to sustainable development goals.

本研究调查了巴厘岛大都市区居民（包括本地居民和外国居民）参与旨在促进循环生物经济的各种废物管理倡议的偏好和意愿。巴厘岛是全球南方的主要旅游中心，为可持续废物管理提供了独特的挑战和机遇。使用选择实验框架，我们通过不同的场景探索了管理纸张、食物和花园垃圾的偏好。方案1侧重于收集和分类废物以支持现有基础设施，方案2强调减少来源和参与，方案3综合了循环经济方法。该研究揭示了对综合废物管理实践的显著支持，对收集和处理纸张废物进行能源转换、食物废物独立堆肥和社区花园废物堆肥等倡议的高边际参与意愿价值。这些发现强调了社区参与和量身定制的战略在制定可持续废物管理计划中的重要性。研究结果为决策者和利益相关者设计有效的循环生物经济政策提供了有价值的见解，有助于提高当地经济的自给自足能力，促进可持续发展目标的实现。

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引用次数: 0

Biobutanol production from cellulose-rich sugarcane bagasse and hard aspen wood residue 利用富含纤维素的甘蔗渣和硬杨木渣生产生物丁醇

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-06-18 DOI: 10.1016/j.wmb.2025.100223

Nkosikho Dlangamandla , Johnson Zininga , Dmitrii Osipov , Margarita Semenova , Olga Sinitsyna , Kugen Permaul

This study investigated the impact of a two-stage pre-treatment process of sugarcane bagasse (SB) and aspen wood (AW) biomass to produce biobutanol. Mild acid and organosolv pre-treatment were combined to pre-treat the biomass and recover lignin. The pre-treated biomass was used for enzymatic saccharification. The total reducing sugars yield per 100 g of pre-treated biomass was 29.29 g/L (13.8 g/L glucose) and 27.79 g/L (12.45 g/L glucose) from AW and SB at 150 °C and 160 °C respectively. Both samples gave a lignin recovery of 15 %. The highest phenolic content obtained from the hydrolysates was 6.55 and 4.53 mg/L for SB and AW at 170 °C and 160 °C, respectively. The highest biobutanol concentration obtained was 7.08 and 8.65 g/L for SB and AW respectively after 72 h. Therefore, the two-stage pre-treatment process was successfully applied to obtain solid residues rich in cellulose as well as lignin, that could be fermented to produce biobutanol.

本研究考察了蔗渣（SB）和白杨木（AW）生物质两阶段预处理工艺对生物丁醇生产的影响。采用温和酸和有机溶剂相结合的预处理方法对生物质进行预处理，回收木质素。预处理后的生物质用于酶解糖化。在150℃和160℃条件下，AW和SB每100 g预处理生物质的总还原糖产量分别为29.29 g/L（葡萄糖为13.8 g/L）和27.79 g/L（葡萄糖为12.45 g/L）。两种样品的木质素回收率均为15%。在170°C和160°C条件下，SB和AW水解产物的酚含量最高，分别为6.55和4.53 mg/L。发酵72 h后，SB和AW的生物丁醇浓度最高，分别为7.08 g/L和8.65 g/L。因此，成功地采用两段预处理工艺获得了富含纤维素和木质素的固体残渣，可以发酵生产生物丁醇。

引用次数: 0

Effect of mechanical recycling and virgin PBR addition on the properties of ABS recovered from WEEE: A multi-technique characterization 机械回收和添加原生PBR对WEEE回收ABS性能的影响：多技术表征

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-08-18 DOI: 10.1016/j.wmb.2025.100238

Anna Lesiak , Luc Vincent , Joost Schollaert , Lamiae Safou , Francois Orange , Sophie Pagnotta , Nicolas Sbirrazzuoli , Nathanael Guigo

With the growing use of electrical and electronic devices, the volume of waste electrical and electronic equipment (WEEE) continues to increase, posing a major environmental and recycling challenge. Acrylonitrile-butadiene-styrene (ABS) is one of the most common thermoplastics found in WEEE, its recovery is complicated by contamination, heterogeneity, and degradation. While mechanical recycling of ABS is widely practiced, the impact of specific processing steps on the chemical and physical properties of the recyclate remains insufficiently explored. This study investigates the effect of shredding and extrusion, as well as the integration of virgin polybutadiene rubber (PBR), on the morphology, chemical structure, and thermal stability of ABS-rich WEEE recyclates. A multi-analytical approach, combining Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), inductively coupled plasma optical emission spectroscopy (ICP-OES) and thermal analysis − was employed to fully characterize the materials. Our findings show that extrusion improves sample homogeneity and removes some contaminants (e.g., Ba, Cl), leading to a significant increase in thermal stability (T₁₀% +30 °C). The addition of virgin PBR contributes to enhanced internal cohesion and a fibrous morphology. This work provides a robust methodology for distinguishing processing-related changes from compositional variability in real-world recycled plastics. The approach can support the development of advanced processing strategies for polymer waste streams.

随着电子电气设备的使用越来越多，废弃电子电气设备的数量持续增加，对环境和回收构成重大挑战。丙烯腈-丁二烯-苯乙烯（ABS）是WEEE中最常见的热塑性塑料之一，其回收因污染、非均质性和降解而复杂。虽然ABS的机械回收被广泛应用，但具体的加工步骤对回收物的化学和物理性质的影响仍未得到充分的探讨。本研究考察了粉碎和挤压以及原生聚丁二烯橡胶（PBR）的整合对富含abs的报废电子电气设备回收物的形态、化学结构和热稳定性的影响。采用傅里叶变换红外光谱（FT-IR）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、能量色散x射线分析（EDX）、电感耦合等离子体光学发射光谱（ICP-OES）和热分析等多种分析方法对材料进行了全面表征。我们的研究结果表明，挤压改善了样品的均匀性，去除了一些污染物（例如Ba， Cl），导致热稳定性显著提高（T10% +30°C）。添加原生PBR有助于增强内部凝聚力和纤维形态。这项工作提供了一个强大的方法来区分加工相关的变化从成分可变性在现实世界的再生塑料。该方法可以支持聚合物废物流的先进处理策略的发展。

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引用次数: 0

A sustainable approach to helminth eggs concentrations removal in sewage sludge from biological wastewater treatment: A Brazilian case study 生物废水处理中去除污泥中蠕虫卵浓度的可持续方法：巴西案例研究

Waste Management Bulletin

Pub Date : 2025-09-01 Epub Date: 2025-07-25 DOI: 10.1016/j.wmb.2025.100232

Guilherme Sgobbi Zagui , Lisandro Simão , Danielma Silva Maia , Brisa Maria Fregonesi , Karina Aparecida Abreu Tonani , Marília Vasconcellos Agnesini , Cristina Filomena Pereira Rosa Paschoalato , Susana Inés Segura-Muñoz

Sewage sludge can be used as fertilizer in agriculture, representing an environmentally and economically advantageous alternative to disposal in landfills and incinerators, however helminth eggs compromises its destination. In this study, we evaluated helminth eggs in raw and treated sewage sludge after thermal drying in an agricultural greenhouse, from two wastewater treatment plants (namely WWTP-A and WWTP-B), in intention of verifying a low-cost treatment technology to obtain treated sewage sludge for agricultural purposes. Helminths eggs of Hymenolepis diminuta and Ascaris sp were the most frequent. In the sludge from WWTP-A the mean concentration of helminth eggs, respectively, was 3.49 ± 1.45 and 1.01 ± 1.13 eggs/g TS in the raw and treated sludge (p = 0.0382). In WWTP-B, the mean concentration of helminth eggs was 8.14 ± 1.28 and 2.33 ± 3.81 eggs/g TS, respectively, in the raw and treated sludge (p = 0.0495). The maximum percentages of egg removal were 93.81 % in WWTP-A and 98.80 % in WWTP-B. No viable eggs were detected in treated sewage sludge, indicating that the biosolid could be classified as Class A under legal parasitological parameters, allowing for extensive use in agricultural crops, which represents a sustainable alternative for the disposal of sewage sludge.

污水污泥可以用作农业肥料，在环境和经济上都比垃圾填埋场和焚化炉处理更有利，但蠕虫卵会损害其目的地。在本研究中，我们评估了两个污水处理厂（即WWTP-A和WWTP-B）在农业温室中热干燥后的未经处理和处理的污水污泥中的蠕虫卵，旨在验证一种低成本处理技术，以获得用于农业目的的处理过的污水污泥。以小膜绦虫卵和蛔虫卵居多。在污水处理厂a污泥中，生污泥和处理污泥的平均虫卵浓度分别为3.49±1.45和1.01±1.13个虫卵/g TS （p = 0.0382）。在WWTP-B中，生污泥和处理污泥中蠕虫卵的平均浓度分别为8.14±1.28个和2.33±3.81个/g TS （p = 0.0495）。WWTP-A和WWTP-B的最大除卵率分别为93.81%和98.80%。处理后的污泥中未检测到活虫卵，表明该生物固体在法定寄生虫学参数下可被分类为A类，允许在农作物中广泛使用，这代表了污水污泥处理的可持续替代方案。

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