Resources, conservation & recycling advances最新文献_第10页

Improvements in charcoal production and the environmental implications: Potential for the invasive Prosopis juliflora in Kenya 木炭生产的改善及其对环境的影响：入侵肯尼亚的胡利花Prosopis juliflora的潜力

Resources, conservation & recycling advances Pub Date : 2023-09-01 DOI: 10.1016/j.rcradv.2023.200181

Mary Njenga , Moses Kirimi , Grace Koech , Erick Otieno Wanjira , Jonathan Muriuki , Phosiso Sola , Mieke Bourne , Ignatius Siko , Ruth Mendum

{"title":"Improvements in charcoal production and the environmental implications: Potential for the invasive Prosopis juliflora in Kenya","authors":"Mary Njenga , Moses Kirimi , Grace Koech , Erick Otieno Wanjira , Jonathan Muriuki , Phosiso Sola , Mieke Bourne , Ignatius Siko , Ruth Mendum","doi":"10.1016/j.rcradv.2023.200181","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200181","url":null,"abstract":"<div><p>Charcoal is a common woodfuel in sub-Saharan Africa (SSA). Unsustainable wood sourcing and inefficient carbonization result into negative environmental impacts. This action research aimed at building the capacity for sustainable charcoal production including `improving the traditional earth mound kiln (TEK) that is used by 99% of charcoal producers in Kenya. Small stems and branches of the invasive <em>Prosopis juliflora</em> were used and produced quality charcoal with 28 kJ/g which will save trees. Improved earth mound kiln (IEK) increased charcoal yield by 49% per mass of sun dried wood fed into the kiln and reduced emissions of carbon monoxide, carbon dioxide and hydrocarbons by 40%, 49% and 44% respectively. Net charcoal yield by a mass of dry wood in TEK and IEK was 26.4% and 28.4% respectively. Communication and capacity development on sustainable charcoal benefit people and environment. Studies on sustainable charcoal and effects on dryland socio-ecological systems will be needed.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200181"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49748368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Strategies for reducing construction waste using lean principles 运用精益原则减少建筑废物的策略

Resources, conservation & recycling advances Pub Date : 2023-08-29 DOI: 10.1016/j.rcradv.2023.200180

Musab Jamal Maraqa , Rafael Sacks , Sabrina Spatari

引用次数: 0

Recycling of tobacco waste: Development of reconstituted tobacco sheet with suitable strength and low-toxicity 烟草废弃物的回收利用:开发强度适宜、低毒的再生烟草片

Resources, conservation & recycling advances Pub Date : 2023-08-29 DOI: 10.1016/j.rcradv.2023.200179

Yu Li , Liying Wan , Meiling Yan , Xiangbing Tang , Song Gao , Yizhen Chen

{"title":"Recycling of tobacco waste: Development of reconstituted tobacco sheet with suitable strength and low-toxicity","authors":"Yu Li , Liying Wan , Meiling Yan , Xiangbing Tang , Song Gao , Yizhen Chen","doi":"10.1016/j.rcradv.2023.200179","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200179","url":null,"abstract":"<div><p>Tobacco industry produces a large amount of tobacco waste every year, and the disposal of tobacco waste become a puzzling problem. Recycling of tobacco waste to reconstituted tobacco sheet (RTS) with suitable strength and low-toxicity was prepared in this paper. RTS with 1wt% compound adhesive that content sodium carboxymethyl cellulose and guar gum has a tensile strength (0.548 kN/m) which meet the requirements of industrial production. Strength enhancement was attributed to the synergistic effect of hydrogen bonding and physical cross-linking network through FTIR and SEM characterization. GC–MS was used to analyze the pyrolysis of RTS. The nicotine release of RTS was lower than commercial cigarettes, which significantly reduces the harmful substance. This work has been preliminarily applied to the industrial production. The production process of RTS is simple, with low water consumption and reuse of tobacco waste. Conforming to the concept of environmental protection, energy conservation, and tobacco resource recycling.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200179"},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49748366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

What a waste – A norm-critical design study on how waste is understood and managed 多么浪费-一个关于如何理解和管理浪费的规范关键设计研究

Resources, conservation & recycling advances Pub Date : 2023-08-25 DOI: 10.1016/j.rcradv.2023.200178

Anna-Sara Fagerholm , Henrik Haller , Anders Warell , Per-Olof Hedvall

引用次数: 0

Life cycle environmental impact assessment of cotton recycling and the benefits of a Take-Back system 棉花回收的生命周期环境影响评估和回收系统的效益

Resources, conservation & recycling advances Pub Date : 2023-08-23 DOI: 10.1016/j.rcradv.2023.200177

Shimul Roy , Ying Yi Jodie Chu , Shauhrat S. Chopra

{"title":"Life cycle environmental impact assessment of cotton recycling and the benefits of a Take-Back system","authors":"Shimul Roy , Ying Yi Jodie Chu , Shauhrat S. Chopra","doi":"10.1016/j.rcradv.2023.200177","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200177","url":null,"abstract":"<div><p>This study assessed the contribution of mechanically recycled cotton to reducing environmental impacts of fabric production by blending the recycled cotton with 100% virgin cotton of different types, including the U.S., BCI-Brazilian, Global average, and China. GHG emissions, water footprint, air pollution, and land use were investigated for producing 1 kg fabric, considering a 'cradle-to-gate' approach. A 'Take-Back' system was modeled using the circular economy concept to illustrate potential impact reduction by avoiding virgin cotton. Impact reduction scenarios were created considering varying blending ratios (i.e., virgin/ recycled), focusing on 70% virgin and 30% recycled cotton (target). Results reveal that compared to the baseline impacts, the target scenario could reduce environmental impacts by 2.2–8.6% (GHG emissions), 0.6–24.5% (water footprint), 1.4–11.6% (air pollution), and 3.1–25.2% (land use). In summary, recycled cotton could partially substitute 100% virgin cotton for fabric production. Besides, implementing and scaling up the 'Take-Back' system could reduce environmental impacts and contribute to environmental sustainability.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200177"},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49748402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of allocation methods in open-loop recycling systems: The carbon footprint of injection molded products based on ABS, PA66GF30, PC and POM 分配方法在开环回收系统中的应用：基于ABS、PA66GF30、PC和POM的注塑制品的碳足迹

Resources, conservation & recycling advances Pub Date : 2023-08-02 DOI: 10.1016/j.rcradv.2023.200176

Jan Tinz , Tim de Ancos , Fabian Völker , Holger Rohn

{"title":"Application of allocation methods in open-loop recycling systems: The carbon footprint of injection molded products based on ABS, PA66GF30, PC and POM","authors":"Jan Tinz , Tim de Ancos , Fabian Völker , Holger Rohn","doi":"10.1016/j.rcradv.2023.200176","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200176","url":null,"abstract":"<div><p>The consumption of recyclates in open-loop recycling systems raises the question in <span>Life Cycle Assessments</span><svg><path></path></svg> of how environmental impacts caused by raw materials and recycling can be allocated to the corresponding products. To solve the multifunctional issue of material flows, this study applies the 50:50 method as well as the cut-off and end-of-life approach using the <span>Circular Footprint Formula</span><svg><path></path></svg> across a cascade of three product life cycles. This analysis is based on injection molded products made of virgin and secondary materials, which consist of ABS, PA66GF30, PC and POM from post-industrial waste. The loss of quality due to production and mechanical recycling processes is reflected in the decrease of tensile strength. By quantifying the impact of allocation, this paper highlights the effects on the Product Carbon Footprint according to ISO 14,067 to show that a 50:50 as well as a cut-off allocation is suitable for the assessment of technical plastics.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200176"},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49764904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

International CO2 capture and storage chains offer unique opportunities and challenges for life-cycle scrutiny 国际二氧化碳捕获和储存链为生命周期审查提供了独特的机遇和挑战

Resources, conservation & recycling advances Pub Date : 2023-07-27 DOI: 10.1016/j.rcradv.2023.200174

Udayan Singh , Vikram Vishal

引用次数: 0

Assessment of Sargassum spp. management strategies in southeast Florida 佛罗里达州东南部马尾藻管理策略评价

Resources, conservation & recycling advances Pub Date : 2023-07-25 DOI: 10.1016/j.rcradv.2023.200175

Afeefa A. Abdool-Ghany , Trent Blare , Helena M. Solo-Gabriele

{"title":"Assessment of Sargassum spp. management strategies in southeast Florida","authors":"Afeefa A. Abdool-Ghany , Trent Blare , Helena M. Solo-Gabriele","doi":"10.1016/j.rcradv.2023.200175","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200175","url":null,"abstract":"<div><p>This study evaluated the economic viability of <em>Sargassum</em> management strategies in southeast Florida. Semi-structured interviews were conducted with key informants, beach managers and potential users. To compare the strategies, a cost and market analysis was conducted to assess the value of <em>Sargassum</em> compost relative to other compost products available in the market. The findings indicate that composting <em>Sargassum</em> is an economically viable option and suggests the potential for recouping some of the costs associated with beach cleaning through the sale of compost. Furthermore, the utilization of <em>Sargassum</em> compost could offer a cost-effective alternative as a soil amendment, especially in the face of rising fertilizer costs. However, it is crucial to address concerns regarding compost quality due to contaminants such as plastics and arsenic before implementing a composting operation. This aspect necessitates thorough investigation and remediation to ensure that the resulting compost meets quality standards and is free from potentially harmful contaminants.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200175"},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49764902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Challenges and prospects of automated disassembly of fuel cells for a circular economy 循环经济中燃料电池自动拆卸的挑战和前景

Resources, conservation & recycling advances Pub Date : 2023-07-17 DOI: 10.1016/j.rcradv.2023.200172

Anwar Al Assadi , Dominik Goes , Sabri Baazouzi , Malena Staudacher , Piotr Malczyk , Werner Kraus , Frank Nägele , Marco F. Huber , Jürgen Fleischer , Urs Peuker , Kai Peter Birke

{"title":"Challenges and prospects of automated disassembly of fuel cells for a circular economy","authors":"Anwar Al Assadi , Dominik Goes , Sabri Baazouzi , Malena Staudacher , Piotr Malczyk , Werner Kraus , Frank Nägele , Marco F. Huber , Jürgen Fleischer , Urs Peuker , Kai Peter Birke","doi":"10.1016/j.rcradv.2023.200172","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200172","url":null,"abstract":"<div><p>The hydrogen economy is driven by the growing share of renewable energy and electrification of the transportation sector. The essential components of a hydrogen economy are fuel cells and electrolysis systems. The scarcity of the resources to build these components and the negative environmental impact of their mining requires a circular economy. Concerning disassembly, economical, ergonomic, and safety reasons make a higher degree of automation necessary.</p><p>Our work outlines the challenges and prospects on automated disassembly of fuel cell stacks. This is carried out by summarizing the state-of-the-art approaches in disassembly and conducting manual non-/destructive disassembly experiments of end-of-life fuel cell stacks. Based on that, a chemical and mechanical analysis of the fuel cell components is performed. From this, an automation potential for the disassembly processes is derived and possible disassembly process routes are modeled. Moreover, recommendations are given regarding disassembly system requirements using a morphological box.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200172"},"PeriodicalIF":0.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49764897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biochar from agricultural crop residues: Environmental, production, and life cycle assessment overview 农业作物残留物中的生物炭：环境、生产和生命周期评估概述

Resources, conservation & recycling advances Pub Date : 2023-07-17 DOI: 10.1016/j.rcradv.2023.200173

Maga Ram Patel, Narayan Lal Panwar

{"title":"Biochar from agricultural crop residues: Environmental, production, and life cycle assessment overview","authors":"Maga Ram Patel, Narayan Lal Panwar","doi":"10.1016/j.rcradv.2023.200173","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200173","url":null,"abstract":"<div><p>In circular economies, it is imperative to implement effective environmental management solutions to address resource depletion. Over the past few years, there has been a growing recognition of the potential of agricultural crop waste in mitigating greenhouse gas (GHG) emissions and promoting global carbon neutrality. Despite lacking practical management options, open-field burning of crop residue contributes significantly to greenhouse gas emissions and air pollution. This challenge may be addressed by producing biochar through the pyrolysis of agricultural crop residues. A biochar application in agriculture can contribute to reducing global warming through the sequestration of atmospheric carbon and reducing greenhouse gas emissions from the soil. As part of the life cycle assessment of biochar, the yield and greenhouse gas emissions during its production are critical factors, which emphasize the importance of selecting a production method suitable for producing biochar. The objective of this paper is to present a comprehensive overview of the environmental and agronomic advantages associated with biochar, along with a detailed analysis of its life cycle assessment (LCA). Furthermore, it provides an overview of how biochar can facilitate local energy production and contribute to sustainable resource management within the nexus of agroecosystems, environment, and energy.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"19 ","pages":"Article 200173"},"PeriodicalIF":0.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49747907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5