Cleaner Waste Systems最新文献_第7页

Threads untangled: Regional mapping of post-consumer textile management 解开线头：消费后纺织品管理区域分布图

Cleaner Waste Systems

Pub Date : 2024-11-23 DOI: 10.1016/j.clwas.2024.100181

Veerle Vermeyen , Luc Alaerts , Ernst Worrell , Karel Van Acker

In the coming decade, the EU intends to intervene in the textile value chain to steer it towards sustainability and circularity. As part of this effort, post-consumer textile (PCT) management should align with the waste hierarchy. This study employs material flow analysis (MFA) to examine and compare PCT management in two European regions: Flanders (Belgium) and the Netherlands. Additionally, future scenarios provide insights into transformations of PCT management toward 2030. The results show that Flanders outperformed the Netherlands in 2018, with a higher share of PCTs being collected separately, going to product recovery, local reuse, and material recovery. However, in both regions, there is still much potential to increase the recovery of products or materials. In 2018, local reuse was at only 4 % in Flanders and 2 % in the Netherlands. Most materials were still lost through incineration, with 52 % in Flanders and 62 % in the Netherlands. Even so, the future scenarios indicate that the Netherlands’ greater policy ambitions, with specific targets aimed at higher circular strategies, such as local reuse and closed-loop recycling, can result in more circular PCT management toward 2030. Hence, when designing interventions, policymakers should go beyond targets on separate collection to successfully steer the waste management of PCT toward circularity. This study shows how MFA-based monitoring provides a good overview of a specific system, allowing for a high level of transparency. Therefore, monitoring PCT management is key to developing informed policies and effective targets.

未来十年，欧盟打算对纺织品价值链进行干预，引导其实现可持续性和循环性。作为这一努力的一部分，消费后纺织品 (PCT) 管理应符合废物等级制度。本研究采用物质流分析法（MFA），对欧洲两个地区的消费后纺织品（PCT）管理进行研究和比较：比利时佛兰德斯和荷兰。此外，未来的设想方案还为 2030 年前的 PCT 管理转型提供了启示。结果显示，2018 年佛兰德斯的表现优于荷兰，PCT 被单独收集、用于产品回收、当地再利用和材料回收的比例较高。然而，这两个地区在提高产品或材料回收率方面仍有很大潜力。2018 年，法兰德斯的本地再利用率仅为 4%，荷兰为 2%。大部分材料仍通过焚烧流失，佛兰德斯为 52%，荷兰为 62%。尽管如此，未来情景表明，荷兰的政策雄心更大，其具体目标是制定更高的循环战略，如本地再利用和闭环回收，从而在 2030 年前实现更循环的 PCT 管理。因此，在设计干预措施时，政策制定者应超越分类收集目标，成功引导 PCT 废物管理实现循环。本研究显示了基于 MFA 的监测如何提供特定系统的良好概览，从而实现高水平的透明度。因此，监测 PCT 管理是制定知情政策和有效目标的关键。

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引用次数: 0

Interventions for reducing food waste and behavioural change among students in higher education institutions – A systematic review 减少食物浪费的干预措施和高等院校学生的行为改变--系统综述

Cleaner Waste Systems

Pub Date : 2024-11-14 DOI: 10.1016/j.clwas.2024.100180

Gajalakshmi Radhakrishnan , S.K. Manivannan , Dhivya Karmegam

Minimizing food waste is crucial due to its environmental, economic, and social implications. As higher education institutions play a very important role in moulding the future society, educating and incorporating the behaviour of food waste minimization practices among young adults at college may help to create a society that is sustainable and environmentally conscious. The objective of this review is to examine the food waste reduction strategies implemented in university and college environments. The effective strategies in reducing waste and changing the behavior of the students were also investigated.The study systematically searched articles on interventions for food waste reduction in Pubmed, ScienceDirect, Scopus, and Springerlink databases from 2013 to 2023. From the 623 articles screened, 16 articles were included in this study. The interventions to decrease food waste that have been extensively researched in academic settings include awareness and information campaigns, tray-less dining and portion size reduction. In addition, altering plate sizes, offering financial incentives, and encouraging food sharing among college students were also implemented as food waste reduction strategies and evaluated in literatures. As the studies are heterogeneous, quantitatively comparing the effectiveness of different strategies in reducing food waste was not done. The majority of research involved implementing interventions during dinning time; however, adjustments can also be made beforehand based on students' preferences and food choices, which may lead to a reduction in food waste. In the future, research on Nudge-type interventions that take sociocultural and lifestyle aspects into account can be conducted to determine the long-term effects on students' changing food waste behaviors.

尽量减少食物浪费对环境、经济和社会的影响至关重要。由于高等教育机构在塑造未来社会方面发挥着非常重要的作用，因此对大学里的年轻人进行教育并使他们养成尽量减少食物浪费的行为习惯，可能有助于创建一个可持续发展和具有环保意识的社会。本综述旨在研究在大学和学院环境中实施的减少食物浪费策略。研究系统地检索了2013年至2023年期间Pubmed、ScienceDirect、Scopus和Springerlink数据库中有关减少食物浪费干预措施的文章。从筛选出的 623 篇文章中，有 16 篇被纳入本研究。学术界已广泛研究过的减少食物浪费的干预措施包括提高认识和宣传活动、无托盘就餐和减少份量。此外，改变餐盘大小、提供经济奖励和鼓励大学生分享食物也是减少食物浪费的策略，并在文献中进行了评估。由于这些研究各不相同，因此没有对不同策略在减少食物浪费方面的效果进行定量比较。大多数研究涉及在就餐时间实施干预措施，但也可以根据学生的喜好和食物选择提前进行调整，从而减少食物浪费。今后，可以对考虑到社会文化和生活方式的 Nudge 类型干预措施进行研究，以确定对学生改变食物浪费行为的长期影响。

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引用次数: 0

Transforming waste into strength: Evaluating properties of concrete with waste glass substitution 变废为宝：评估废玻璃替代混凝土的性能

Cleaner Waste Systems

Pub Date : 2024-10-26 DOI: 10.1016/j.clwas.2024.100179

Kushal Rana Bhat , Ghanshyam Dumre , Tek Raj Gyawali

Waste glass (WG) poses a significant environmental challenge due to its non-biodegradability and prevalence in landfills. This paper investigates the effects of using WG as a replacement for coarse aggregate (CA), fine aggregate (FA), and cement in concrete, utilizing WG coarse aggregate (WGCA), WG fine aggregate (WGFA), and WG powder (WGP), respectively. WG was mechanically crushed and sieved to obtain WGCA, WGFA, and WGP. The use of whole crushed waste glass (WG) particles, without any residue, introduces a novel aspect to this work. The study examined these replacements in a control concrete mix with a water-cement ratio of 0.38 and a mix proportion of cement, FA, and CA of 1:1.717:2.560 by weight. Replacement levels were set at 0 %, 5 %, 10 %, 15 %, 20 %, and 25 % by weight of the respective ingredient. Results showed that incorporating WG improved the slump value of the concrete while slightly decreasing its density. The optimum replacement levels were identified as 15 % for both WGCA and WGFA, and 10 % for WGP, which enhanced the 28-day compressive strength by 22.1 %, 20.1 %, and 13.1 %, respectively. At 20 % replacement for CA and FA, and 15 % for C, the compressive strength was comparable to that of the control concrete. The elastic modulus followed a similar trend to the compressive strength. However, at these optimum WG replacement levels, flexural strength decreased to 6.04 MPa, 5.89 MPa, and 6.14 MPa, respectively, from 6.32 MPa in the control concrete. Splitting tensile strength decreased to 2.97 MPa, 3.07 MPa, and 3.23 MPa, respectively, from 3.35 MPa. Water absorption also reduced to 3.83 %, 4.23 %, and 4.41 %, respectively, from 4.61 %. Empirical models were developed and compared with those from previous studies. Further research to strengthen the interfacial transition zone and ascertain detailed durability properties is necessary before implementing this sustainable concrete in real-world applications. The implementation of the results from this research may not only minimize glass waste but also contribute to the production of sustainable concrete, reducing CO₂ emissions and mitigating environmental degradation by lowering the consumption of cement and aggregates. Furthermore, this work plays a significant role in global efforts to reduce solid waste and combat environmental pollution.

废玻璃（WG）由于其不可生物降解性和在垃圾填埋场中的普遍存在，给环境带来了巨大的挑战。本文分别利用废玻璃粗骨料（WGCA）、废玻璃细骨料（WGFA）和废玻璃粉（WGP），研究了用废玻璃替代混凝土中粗骨料（CA）、细骨料（FA）和水泥的效果。WG 经机械破碎和筛分后可获得 WGCA、WGFA 和 WGP。使用不含任何残留物的完整破碎废玻璃 (WG) 颗粒为这项工作带来了一个新的方面。该研究在水灰比为 0.38，水泥、FA 和 CA 的混合比例为 1:1.717:2.560 （按重量计）的对照混凝土拌合物中检验了这些替代品。各种成分的替代比例分别为 0%、5%、10%、15%、20% 和 25%（按重量计）。结果表明，掺入 WG 可提高混凝土的坍落度值，同时略微降低其密度。WGCA 和 WGFA 的最佳添加量分别为 15%和 10%，28 天抗压强度分别提高了 22.1%、20.1% 和 13.1%。在 CA 和 FA 的替代率为 20% 和 C 的替代率为 15% 时，抗压强度与对照混凝土相当。弹性模量的变化趋势与抗压强度相似。然而，在这些最佳 WG 替代水平下，抗折强度分别从对照混凝土的 6.32 兆帕降至 6.04 兆帕、5.89 兆帕和 6.14 兆帕。劈裂拉伸强度从 3.35 兆帕分别降至 2.97 兆帕、3.07 兆帕和 3.23 兆帕。吸水率也从 4.61% 分别降至 3.83%、4.23% 和 4.41%。我们建立了经验模型，并与之前的研究进行了比较。在实际应用这种可持续混凝土之前，有必要开展进一步研究，以加强界面过渡区并确定详细的耐久性能。这项研究成果的实施不仅可以最大限度地减少玻璃废料，还有助于生产可持续混凝土，通过降低水泥和骨料的消耗，减少二氧化碳排放，缓解环境退化。此外，这项工作在全球减少固体废物和治理环境污染的努力中发挥着重要作用。

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引用次数: 0

Stripping down sustainability assessments for easier comparison of innovative recycling options 简化可持续性评估，便于比较创新的回收利用方案

Cleaner Waste Systems

Pub Date : 2024-10-23 DOI: 10.1016/j.clwas.2024.100178

Erik Dekker , Joris T.K. Quik , Michelle A. Steenmeijer , Johannes P.A. Lijzen

In this short communication we propose a screening approach for assessing the sustainability of new recycling options. Before performing a full comparative LCA it is useful to perform a simplified LCA because of the lower data intensity. The impact categories are limited to greenhouse gas emissions and land use. As an example car tire recycling is shown. This screening approach is already useful for decision makers and can be used by stakeholders to compare innovative with the baseline technology.

在这篇短文中，我们提出了一种筛选方法，用于评估新回收方案的可持续性。在进行全面的生命周期评估比较之前，由于数据强度较低，进行简化的生命周期评估是非常有用的。影响类别仅限于温室气体排放和土地使用。以汽车轮胎回收为例。这种筛选方法对决策者已经非常有用，利益相关者也可利用这种方法将创新技术与基准技术进行比较。

引用次数: 0

Quantification and characterization of municipal solid waste at aler dumpsite, Lira City, Uganda: Assessing pollution levels and health risks 乌干达利拉市 aler 垃圾场城市固体废物的量化和特征描述：评估污染水平和健康风险

Cleaner Waste Systems

Pub Date : 2024-10-23 DOI: 10.1016/j.clwas.2024.100177

Ogwang Nickson , Zubeda Ukundimana , Fwangmun B. Wamyil , Abdulfatah Abdu Yusuf , Mutuyimana Jean Pierre , Abdou Safari Kagabo , Theogene Rizinde

Managing municipal solid waste (MSW) in urban areas of developing countries is a significant challenge due to rapid urbanization and inadequate infrastructure. This study aims to quantify the MSW at Aler dumpsite in Lira City, Uganda, and assess the associated environmental and health risks. Our findings revealed a daily dumping rate of 7.38 tons, predominantly organic waste. Leachate from the site exceeded WHO limits for nutrients and heavy metals, with exceptionally high amounts of cadmium (Cd) found in soil (4.8 mg/kg) and vegetables. The water quality in nearby streams was poor, rendering it unfit for consumption due to elevated ion and nutrient levels. Health risk assessments indicated significant non-carcinogenic risks from heavy metal ingestion, with a hazard index (HI) of 4.6 for adults and 9.6 for children. While dermal exposure risks were generally low, children were at risk from stream 1 (HQderm = 1.165). Vegetable analysis revealed levels of lead (Pb), cadmium (Cd), zinc (Zn), and nickel (Ni) above safe doses, posing significant non-carcinogenic risks. To address these issues, we recommend increasing public awareness to avoid consuming water and vegetables from areas around the dump site. Additionally, we suggest that the responsible authorities improve MSW management by constructing sanitary landfills to minimize water, soil, and plant pollution from landfill leachate.

由于快速城市化和基础设施不足，发展中国家城市地区的城市固体废物（MSW）管理是一项重大挑战。本研究旨在量化乌干达利拉市 Aler 垃圾场的城市固体废物，并评估相关的环境和健康风险。我们的研究结果表明，每天的倾倒量为 7.38 吨，主要是有机废物。该垃圾场的渗滤液营养成分和重金属含量超过了世界卫生组织的规定，其中土壤（4.8 毫克/千克）和蔬菜中的镉含量特别高。附近溪流的水质很差，由于离子和营养物质含量升高，不适合饮用。健康风险评估表明，摄入重金属有很大的非致癌风险，成人和儿童的危害指数分别为 4.6 和 9.6。虽然皮肤接触的风险普遍较低，但溪流 1（HQderm = 1.165）对儿童造成了风险。蔬菜分析表明，铅 (Pb)、镉 (Cd)、锌 (Zn) 和镍 (Ni) 的含量超过了安全剂量，构成了重大的非致癌风险。为解决这些问题，我们建议提高公众意识，避免饮用垃圾场周围地区的水和蔬菜。此外，我们还建议有关部门通过建设卫生填埋场来改善都市固体废物管理，以尽量减少填埋场沥滤液对水、土壤和植物的污染。

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引用次数: 0

Enhancing performance of construction waste management: Factor analysis from the building contractors’ perspectives 提高建筑垃圾管理绩效：从建筑承包商的角度进行因素分析

Cleaner Waste Systems

Pub Date : 2024-10-21 DOI: 10.1016/j.clwas.2024.100176

Vuthea Min , Kriengsak Panuwatwanich , Koji Matsumoto

With the rapid growth of urbanization, construction projects have surged, increasing construction waste (CW). Effective construction waste management (CWM) is crucial to mitigate the adverse effects of CW on the environment, society, and the economy. This study aimed to identify critical attributes and factors that enhance CWM in building construction. Attributes were initially identified through a literature review and verified by 32 experts. Subsequently, a questionnaire based on the retained attributes was developed, and a survey was conducted with 304 construction professionals from the building construction sector in Cambodia and Thailand. Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were sequentially conducted and further revealed five factors with a total of 27 attributes, namely Governance and policies (8 attributes), Materials and equipment (8 attributes), Requirements and specifications (4 attributes), Construction information systems (4 attributes), and Waste collection facilities (3 attributes). This study identified and confirmed the critical attributes and factors in enhancing the contractors’ CWM performance in building construction that are specifically within the 2 R strategy (reduce and reuse) that contractors can fully control on their construction sites. The findings provide empirical evidence to guide contractors in improving CWM in building construction projects. By enhancing all attributes across the five key factors, contractors can minimize CW and reduce the negative impact of construction activities on the environment and society, thereby contributing to sustainable construction practices.

随着城市化的快速发展，建筑项目激增，建筑垃圾（CW）也随之增加。有效的建筑垃圾管理（CWM）对于减轻建筑垃圾对环境、社会和经济的不利影响至关重要。本研究旨在确定在建筑施工中加强 CWM 的关键属性和因素。通过文献综述初步确定了属性，并由 32 位专家进行了验证。随后，根据保留的属性编制了调查问卷，并对来自柬埔寨和泰国建筑施工领域的 304 名建筑专业人员进行了调查。依次进行了探索性因子分析（EFA）和确认性因子分析（CFA），进一步发现了五个因子共 27 个属性，即治理与政策（8 个属性）、材料与设备（8 个属性）、要求与规范（4 个属性）、建筑信息系统（4 个属性）和废物收集设施（3 个属性）。本研究确定并确认了提高承包商在建筑施工中的化武管理绩效的关键属性和因素，这些属性和因素特别属于承包商可以在其施工现场完全控制的 2 R 战略（减少和再利用）。研究结果为指导承包商在建筑施工项目中改进 CWM 提供了经验证据。通过提高五个关键因素的所有属性，承包商可以最大限度地减少建筑工程，降低建筑活动对环境和社会的负面影响，从而为可持续建筑实践做出贡献。

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引用次数: 0

Food waste separation intention among the residential students: Moderation role of university support 住宿生的食物垃圾分类意向：大学支持的调节作用

Cleaner Waste Systems

Pub Date : 2024-10-18 DOI: 10.1016/j.clwas.2024.100174

Kelvin Yong Ming Lee , Pick-Soon Ling , Liing-Sing Ling , Yi Shen , Gwendolyn Huei Ming Chiu , Xiao-Yan Phang

The university has made efforts to promote campus sustainability by encouraging food waste separation among residential students. However, the effect of university support on students' behavioural intentions in this context remains understudied. Moreover, the evidence regarding residential students’ food waste separation intention is relatively deficient compared to other study contexts. To address these gaps, this study aims to achieve two objectives: (1) to investigate the constructs affecting residential students to separate food waste, and (2) to study the moderating effect of university support on the proposed relationships. A novel research framework which integrates environmental knowledge and moral norms into the theory of planned behaviour model, together with the university support as moderator, has been proposed. Primary data from 191 residential students in Malaysia were collected through purposive sampling and analysed using partial least squares structural equation modelling. The study’s findings revealed that students’ intentions to separate food waste are influenced by attitude, subjective norms, perceived behavioural control, and moral norms. Besides, the moderation analysis confirmed that university support significantly strengthen the relationship between attitude and intention to separate food waste in the university context. This finding offered valuable theoretical contributions regarding the moderation role of university support and provides practical implications for promote positive food waste behaviours among residential students.

大学通过鼓励住宿生进行厨余垃圾分类，努力促进校园可持续发展。然而，在这种情况下，大学的支持对学生行为意向的影响仍未得到充分研究。此外，与其他研究背景相比，有关住宿生膳食垃圾分类意向的证据相对不足。为了弥补这些不足，本研究旨在实现两个目标：（1）调查影响住宿生膳食垃圾分类的建构因素；（2）研究大学支持对拟议关系的调节作用。我们提出了一个新颖的研究框架，将环境知识和道德规范纳入计划行为理论模型，并将大学支持作为调节因素。通过有目的的抽样收集了马来西亚 191 名住宿生的原始数据，并使用偏最小二乘法结构方程模型进行了分析。研究结果显示，学生的食物垃圾分类意愿受态度、主观规范、感知行为控制和道德规范的影响。此外，调节分析证实，在大学背景下，大学支持显著加强了态度与厨余分类意向之间的关系。这一发现为大学支持的调节作用提供了有价值的理论贡献，并为在住宿生中推广积极的厨余行为提供了实践意义。

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引用次数: 0

Adding barium sulfate (BaSO4) to fly ash geopolymer increases its compressive strength as X-ray shielding for medical imaging applications 在粉煤灰土工聚合物中添加硫酸钡（BaSO4）可提高其抗压强度，作为医疗成像应用的 X 射线屏蔽材料

Cleaner Waste Systems

Pub Date : 2024-10-16 DOI: 10.1016/j.clwas.2024.100175

Ammar A. Oglat , Sabri M. Shalbi , Mohammed Suhimi

Background

Geopolymers, a novel cementitious material, have the potential for reducing carbon dioxide wastes resulting from the manufacture of cement.

Purpose

This study presents an experimental inquiry conducted to produce a fly ash geopolymer mortar with a good of compressive strength of the batch.

Methods

Activation of the mortar is accomplished through the use of sodium hydroxide and sodium silicate. The mortar is created from a mixture of fly ash and sand. In order to determine the maximum load that a material is capable of bearing before experiencing failure, the compressive strength test was utilized.

Results

According on the findings of the compressive strength testing device, the fly ash geopolymer with 15 % barium sulfate (BaSO4) demonstrates the highest compressive strength, which is measured at 56 MPa. When compared to the results obtained from cement mortar, this one is twice as high, which indicates that the strength improvement factor is 2. This study's findings highlighted the necessity of employing fly ash geopolymer that contains 15 % BaSO4 for the purpose of providing shielding protection. Conclusion: Therefore, in terms of its performance, fly ash geopolymer is superior to cement mortar. This is due to the fact that it is manufactured with a high compressive strength.

背景土工聚合物是一种新型胶凝材料，具有减少水泥生产过程中产生的二氧化碳废物的潜力。目的本研究介绍了为生产抗压强度良好的粉煤灰土工聚合物砂浆而进行的实验调查。砂浆由粉煤灰和沙子混合制成。结果根据抗压强度测试装置的结果，含 15% 硫酸钡 (BaSO4) 的粉煤灰土工聚合物的抗压强度最高，达到 56 兆帕。与水泥砂浆的结果相比，抗压强度高出一倍，这表明强度提高系数为 2。这项研究的结果突出表明，有必要使用含 15% 硫酸钡 (BaSO4) 的粉煤灰土工聚合物来提供屏蔽保护。结论因此，就性能而言，粉煤灰土工聚合物优于水泥砂浆。这是因为粉煤灰土工聚合物具有很高的抗压强度。

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引用次数: 0

Different aspects of biochar addition on semi-dry anaerobic digestion of organic fraction of municipal solid waste in continuous mode 添加生物炭对连续模式下城市固体废物有机部分半干法厌氧消化的不同影响

Cleaner Waste Systems

Pub Date : 2024-10-13 DOI: 10.1016/j.clwas.2024.100171

Ahmad Reza Salehiyoun , Hamid Zilouei , Omid Norouzi , Francesco Di Maria , Saeid Mofatteh , Mohammad Safari

This study investigated the use of biochar, derived from a wood gasifier, in semi-dry anaerobic digestion of organic fraction of municipal solid waste (OFMSW). The experiment was conducted in three phases, without biochar and changing the hydraulic retention time (HRT) from 50 to 15 days until first acidification condition (on pH = 6.5), with biochar at an optimal concentration of 30 g/L in HRT= 20–10 day. Also, countermeasures for the acidified reactor with biochar during the dormancy period were investigated. The results demonstrated that adding biochar led to a rapid recovery of the acidified reactor, improved stability parameters, and removed foaming as a disturbance. Biochar addition (30 g/L) enhanced the organic loading rate (OLR) up to 11 kgVS/m3.day with an HRT of 20 days leading to specific methane production of 383 L/kgVS and a volumetric production increase of biomethane by 85 %. However, at higher OLRs with HRT of 10 days, acidification condition resurfaced leading to homogeneous foaming. Excess adding of biochar did not have significant treatment effects but necessitated a no-feeding period (about 45 days) and gentle stirring with long intervals for stable conditions. Overall, the use of biochar along with the OFMSW biogas plant was demonstrated to enhance production efficiency.

本研究调查了在城市固体废弃物有机部分（OFMSW）的半干法厌氧消化中使用从木材气化炉中提取的生物炭的情况。实验分三个阶段进行：不使用生物炭，水力停留时间（HRT）从 50 天改为 15 天，直至第一次酸化条件（pH=6.5）；在 HRT= 20-10 天时使用最佳浓度为 30 克/升的生物炭。此外，还研究了在休眠期用生物炭酸化反应器的对策。结果表明，添加生物炭后，酸化反应器迅速恢复，稳定性参数得到改善，并消除了起泡这一干扰因素。生物炭添加量（30 克/升）提高了有机负荷率（OLR），最高可达 11 kgVS/m3.day，HRT 为 20 天，具体甲烷产量为 383 升/kgVS，生物甲烷的体积产量增加了 85%。然而，在较高的 OLR（HRT 为 10 天）条件下，酸化条件再次出现，导致均匀发泡。过量添加生物炭并不会对处理产生显著影响，但需要一个不进料期（约 45 天）和长时间的轻微搅拌，以保持稳定的条件。总之，生物炭与 OFMSW 沼气厂的结合使用证明可提高生产效率。

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引用次数: 0

Bridging the gap: Transforming waste management awareness into action 缩小差距：将废物管理意识转化为行动

Cleaner Waste Systems

Pub Date : 2024-10-09 DOI: 10.1016/j.clwas.2024.100173

Emma Etim

This cross-sectional study investigated the awareness and attitudes towards municipal solid waste management (MSWM) among 400 households across three states in Southwestern Nigeria. Using binary logistic regression and the theory of planned behaviour, the research revealed a significant gap between self-reported awareness and the actual implementation of effective MSWM practices. Only 35 % of respondents adhered to the top tier approaches of the waste management hierarchy (avoidance, reduction, and reuse). Awareness of specific MSWM policies was the strongest predictor of positive attitudes, making individuals six times more likely to engage in supportive behaviours. Gender differences were notable, with males demonstrating higher awareness and more positive attitudes than females. The study emphasizes the need for targeted educational campaigns to bridge the gap between general awareness and effective practices. The willingness to pay for MSWM services was high across different income segments, reflecting huge opportunities for public-private partnership and entrepreneurship. This study concluded that in order to transform waste management awareness into action, pertinent issues such as comprehensive education, robust policies, strategic investments and payment for waste management services must be taken into account.

这项横断面研究调查了尼日利亚西南部三个州 400 户家庭对城市固体废物管理（MSWM）的认识和态度。研究采用二元逻辑回归和计划行为理论，发现自我报告的认识与实际实施有效的 MSWM 方法之间存在显著差距。只有 35% 的受访者遵守了废物管理等级制度的最高级方法（避免、减少和再利用）。对具体 MSWM 政策的了解是积极态度的最有力预测因素，使个人采取支持性行为的可能性提高了六倍。性别差异非常明显，男性比女性表现出更高的意识和更积极的态度。这项研究强调，有必要开展有针对性的教育活动，以缩小普遍认识与有效实践之间的差距。不同收入阶层对 MSWM 服务的付费意愿都很高，这反映出公私伙伴关系和创业精神的巨大机遇。这项研究的结论是，为了将废物管理意识转化为行动，必须考虑到全面教育、强有力的政策、战略投资和废物管理服务付费等相关问题。

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引用次数: 0