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

Using counterintuitive sustainability examples in teaching life cycle assessment: A case study 在教学生命周期评估中使用违反直觉的可持续性示例：一个案例研究

Resources, conservation & recycling advances Pub Date : 2023-06-13 DOI: 10.1016/j.rcradv.2023.200165

Andrea Hicks

{"title":"Using counterintuitive sustainability examples in teaching life cycle assessment: A case study","authors":"Andrea Hicks","doi":"10.1016/j.rcradv.2023.200165","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200165","url":null,"abstract":"<div><p>Popular media has reinforced ideas of what products are or are not environmentally detrimental, often only considering a fraction of the overall product life cycle, such as the end of life for single use products, or a single environmental consideration. This leads to counterintuitive sustainability examples, where a product is commonly thought to be much more environmentally impactful than its counterparts, but that actually is not universally true. Single use plastic drinking straws are one such example, which were used as the course project in a project based life cycle assessment (LCA) course. Students’ perceptions of which straws were the best and worst for the environment were surveyed both before and after the course, in order to see first the effect of the popular media on the initial ranking and second how the ranking changed after completion of the course project. Reflections on the course experience were also utilized to gauge how the students’ understanding of both LCA and sustainability changed as a result of the course. In general, students’ understanding of which straw option had the greatest and least environmental impact changed as a result of the course, in particular enabling a more nuanced view of environmental impact. The guided student reflections indicated four major areas of focus regarding the relationship between sustainability and LCA: LCA as revealing truth, LCA for decision making, single use products are not always the most environmentally impactful, and using LCA to change their concept of what is sustainable.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49748239","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

Transitioning to a state-wide circular economy: Major stakeholder interviews 向全州循环经济转型：主要利益相关者访谈

Resources, conservation & recycling advances Pub Date : 2023-06-13 DOI: 10.1016/j.rcradv.2023.200163

Oanh Thi-Kieu Ho, Akvan Gajanayake, Usha Iyer-Raniga

引用次数: 3

Utilization of municipal solid waste incineration fly ash as construction materials based on geopolymerization 基于地质聚合的城市生活垃圾焚烧飞灰建筑材料的利用

Resources, conservation & recycling advances Pub Date : 2023-06-01 DOI: 10.1016/j.rcradv.2023.200162

Yueheng Chen , Ming Zhao , Yi Lv , Zhao Jia Ting , Sheng Zhao , Zibiao Liu , Xiang Zhang , Yuanda Yang , Yan You , Wenyi Yuan

{"title":"Utilization of municipal solid waste incineration fly ash as construction materials based on geopolymerization","authors":"Yueheng Chen , Ming Zhao , Yi Lv , Zhao Jia Ting , Sheng Zhao , Zibiao Liu , Xiang Zhang , Yuanda Yang , Yan You , Wenyi Yuan","doi":"10.1016/j.rcradv.2023.200162","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200162","url":null,"abstract":"<div><p>Incineration has been widely used to dispose municipal solid wastes (MSWs) with heat recovery. The generation of fly ash (FA, around 3∼5 wt% of the fed amount) that is normally defined as hazardous wastes remains a serious problem. It is ideal to work out a way to reutilize FA for valuable use instead of landfilling. As a novel utilization technology for municipal solid waste incineration (MSWI) fly ash, geopolymerization can produce geopolymer as construction materials with the advantages of low energy consumption, low pollution and high utilization rate. In this paper, metakaolin (MK) and washed fly ash (WFA) were used to prepare MSWI fly ash-based geopolymer (FAG) with alkali activator. Besides, the strength, heavy metals immobilization and acid resistance of FAG were in detail studied. Under the proper formulation, all the prepared FAGs exhibited strength higher than MU15 level (≥15 MPa) and the maximized one reached MU30 (≥30 MPa). Heavy metals including Cr, Mn, Cu, As, Pb, Zn and Cd had a immobilization rate of more than 92%, and others like As, Pb and Zn were nearly fully immobilized. As for the simulated testing for acid rain scenario, FAG could still fix up the heavy metals well indicating a controllable risk for the environment, which could be ascribed be its high acid neutralization capacity. In a word, this work reports a feasible method for treatment and resource reutilization of MSWI fly ash.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49748281","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

Recovery of phosphorus from public toilet press filtrate using Ca-rich fly ash through the formation of hydroxyapatite (HAP) 利用富钙粉煤灰形成羟基磷灰石回收公厕压滤滤液中的磷

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200138

Peidong Su , Qianqian Huo , Junke Zhang , Guifeng Zhao , Bingxu Quan , Chunhui Zhang

{"title":"Recovery of phosphorus from public toilet press filtrate using Ca-rich fly ash through the formation of hydroxyapatite (HAP)","authors":"Peidong Su , Qianqian Huo , Junke Zhang , Guifeng Zhao , Bingxu Quan , Chunhui Zhang","doi":"10.1016/j.rcradv.2023.200138","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200138","url":null,"abstract":"<div><p>Hydroxyapatite (HAP) precipitation is considered to be one of the most promising approaches for phosphorus recovery, though it often requires sophisticated control of local pH, the concentration of Ca<sup>2+</sup> and PO<sub>4</sub><sup>3−</sup> to minimize the side effects. In many cases, additional Ca sources are needed to adjust the pH and Ca concentration of the solution, that makes the cost of HAP precipitation process relatively high. Herein, we studied the possibility of using Ca-rich fly ash (CFA) as Ca sources and pH adjuster to provide suitable environment for HAP precipitation from the toilet press filtrate. The main factors that affect the HAP formation were identified and the performance of CFA on P recovery from real toilet press filtrate was examined and the mechanism was proposed. Rsults indicated that the strong buffering property of CFA rendered it workable in a wide pH range from 5 to 12. Products characterization and Visual MINTEQ simulative analysis illustrated that the removal of PO<sub>4</sub><sup>3−</sup> by CFA was mainly through the formation of HAP. Moreover, the results of PO<sub>4</sub><sup>3−</sup> removal by CFA in toilet press filtrate proved that when the concentration of CFA was 4 g/L, the removal rate of PO<sub>4</sub>-P reached 87.0%.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49818114","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

U.S. cobalt scenario analysis to mid-century: Import dependency or marketable commodity? 本世纪中叶美国钴情景分析:依赖进口还是适销对路?

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200134

Alessio Miatto, Thomas E. Graedel

引用次数: 0

From circular strategies to actions: 65 European circular building cases and their decarbonisation potential 从循环战略到行动:65个欧洲循环建筑案例及其脱碳潜力

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200130

Julia Nußholz , Sultan Çetin , Leonora Eberhardt , Catherine De Wolf , Nancy Bocken

{"title":"From circular strategies to actions: 65 European circular building cases and their decarbonisation potential","authors":"Julia Nußholz , Sultan Çetin , Leonora Eberhardt , Catherine De Wolf , Nancy Bocken","doi":"10.1016/j.rcradv.2023.200130","DOIUrl":"10.1016/j.rcradv.2023.200130","url":null,"abstract":"<div><p>The application of the circular economy (CE) in the building industry is critical for achieving the carbon reduction goals defined in the Paris Agreement and is increasingly promoted through European policies. In recent years, CE strategies have been applied and tested in numerous building projects in practice. However, insights into their application and decarbonisation potential are limited. This study analysed and visualised 65 novel real-world cases of new build, renovation, and demolition projects in Europe compiled from academic and grey literature. Cases were analysed regarding the circular solution applied, level of application in buildings, and decarbonisation potential reported, making this study one of the first comprehensive studies on the application and decarbonisation potential of circular strategies in the building industry in practice. The identified challenges of using LCA for CE assessment in buildings are discussed and methodological approaches for future research are suggested.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10074390/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9763012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

An investigation into the minimum energy requirements for transforming end-of-life cotton textiles into carbon fibre in an Australian context 在澳大利亚的背景下，对将报废棉纺织品转化为碳纤维的最低能源要求进行了调查

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2022.200123

Charlotte Wesley, Farshid Pahlevani, Shahruk Nur-A-Tomal, Smitirupa Biswal, Veena Sahajwalla

{"title":"An investigation into the minimum energy requirements for transforming end-of-life cotton textiles into carbon fibre in an Australian context","authors":"Charlotte Wesley, Farshid Pahlevani, Shahruk Nur-A-Tomal, Smitirupa Biswal, Veena Sahajwalla","doi":"10.1016/j.rcradv.2022.200123","DOIUrl":"https://doi.org/10.1016/j.rcradv.2022.200123","url":null,"abstract":"<div><p>The work presents on the relationship between temperature, time and carbon content in the preparation of a carbon fibre cloth from end-of-life cotton textiles. The aim of this investigation was to identify the minimum energy requirements for this textile recycling opportunity. The composition of the carbon fibre was studied using elemental combustion instruments and X-ray fluorescence. The structure of the carbon fibres was studied through scanning electron microscopy and X-ray diffraction. Through this process it was determined that the optimum temperature and time requirements were 1150 °C and 30 min to prepare a carbon fibre under the conventional definition, which requires carbon content to be in excess of 90%. The minimum temperature and time requirements for a lower grade carbon fibre of 80% carbon content are 650 °C and 30 min. This research can support efforts to improve circularity of cotton textiles for high value applications in environmental management or electronic markets. This in turn could support these industries to reduce their carbon footprint and meet their sustainable procurement targets for greater uptake of recycled content materials.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49858506","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

Resources, conservation & recycling advances circular economy in Andalusia: A review of public and non-governmental initiatives 安达卢西亚的资源、保护和循环利用促进了循环经济:对公共和非政府倡议的回顾

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200133

Álvaro González Forastero

{"title":"Resources, conservation & recycling advances circular economy in Andalusia: A review of public and non-governmental initiatives","authors":"Álvaro González Forastero","doi":"10.1016/j.rcradv.2023.200133","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200133","url":null,"abstract":"<div><p>This paper analyses the status quo of the circular economy in Andalusia with the special focus on public and non-governmental initiatives in the field. Regional authorities have undertaken a number of actions in order to stimulate public-private collaboration and implementation of projects that can benefit from the EU funding aiming to accelerate the transformation of Andalusian economy and to make it more circular and less carbon intensive. While the private enterprises in the region focus mainly on recovery of agricultural and food waste, the citizen initiatives target primarily the reduction of residential waste, promoting the reutilization of furniture, home appliances and closing.</p><p>Unfortunately, the initiatives of Andalusian authorities often lack harmonization with both the EU and Spanish strategies in the field. The main documents that govern the development of circular economy in the region frequently set imprecise qualitative goals, rather than binding quantitative targets to be achieved within a certain period of time. As a corollary, there is a poor coordination among the public administration, business sector and the society and insufficient provision of public funding for circular projects.</p><p>We, therefore, recommend Andalusian government to build up the framework of regulatory, fiscal and economic tools that can incentivize the circular economy and to increase transparency, monitoring, reporting, and recognition of progress. It is essential to introduce both the rewarding and penalization schemes that enable behavioral changes of producers and consumers, to set the concrete numerical goals and to harmonize the main programs with the Spanish and the EU strategies in the field of circular economy.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49868666","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: 3

A low carbon future for Brazilian steel and cement: A joint assessment under the circular economy perspective 巴西钢铁和水泥的低碳未来:循环经济视角下的联合评估

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200141

Jhonathan Fernandes Torres de Souza, Sérgio Almeida Pacca

引用次数: 0

Primary Exploration, Mining and Metal Supply Scenario (PEMMSS) model: Towards a stochastic understanding of the mineral discovery, mine development and co-product recovery requirements to meet demand in a low-carbon future 初级勘探、采矿和金属供应情景(PEMMSS)模型:对矿产发现、矿山开发和副产品回收需求的随机理解，以满足低碳未来的需求

Resources, conservation & recycling advances Pub Date : 2023-05-01 DOI: 10.1016/j.rcradv.2023.200137

S.A. Northey , S. Klose , S. Pauliuk , M. Yellishetty , D. Giurco

{"title":"Primary Exploration, Mining and Metal Supply Scenario (PEMMSS) model: Towards a stochastic understanding of the mineral discovery, mine development and co-product recovery requirements to meet demand in a low-carbon future","authors":"S.A. Northey , S. Klose , S. Pauliuk , M. Yellishetty , D. Giurco","doi":"10.1016/j.rcradv.2023.200137","DOIUrl":"https://doi.org/10.1016/j.rcradv.2023.200137","url":null,"abstract":"<div><p>Existing scenario models of future material flows often exclude or place a ‘black-box’ around the mining industry and disregard important industry dynamics such as mineral exploration. This lack of sophistication prevents formation of knowledge required to answer key questions pertaining to future mining output, the amount of companion metals that can be supplied and the investments and lead times needed to fulfil future metal demand. To address this, we introduce the Primary Exploration, Mining and Metal Supply Scenario (PEMMSS) model, which allows for mine-by-mine modelling with full regionalisation and linkages to geological deposit types. PEMMSS allows for the assessment of required rates of mineral deposit discovery, mine development and co-product recovery overtime for a range of socio-economic and sustainable development linked primary material demand scenarios. The model can be calibrated using mineral resource grade, tonnage and density probability distribution functions for regions and deposit types to stochastically model scenarios for future greenfield discoveries and understand uncertainities. Applying PEMMSS will facilitate improved understanding of how future urbanisation across the globe and low-carbon transitions will translate into altered requirements for the exploration and primary mineral and metal supply sectors and their associated environmental impacts. A hypothetical case study is presented for a four co-product commodity system to highlight potential model behaviours and key drivers of model sensitivity.</p></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49868670","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