Resources Conservation and Recycling最新文献_第2页

Sustainable and green process for recycling waste wool textiles into high-quality protein fibers on a pilot scale 可持续和绿色的工艺回收废羊毛纺织品为高品质的蛋白质纤维的试点

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-11-01 DOI: 10.1016/j.resconrec.2023.107190

Bingnan Mu, Xiaoqing Yu, Yiqi Yang

引用次数: 1

A Waste Classification model in Low-illumination scenes based on ConvNeXt 基于ConvNeXt的低照度场景下垃圾分类模型

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107274

Yibin Qiao, Qiang Zhang, Ying Qi, Teng Wan, Lixin Yang, Xin Yu

{"title":"A Waste Classification model in Low-illumination scenes based on ConvNeXt","authors":"Yibin Qiao, Qiang Zhang, Ying Qi, Teng Wan, Lixin Yang, Xin Yu","doi":"10.1016/j.resconrec.2023.107274","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107274","url":null,"abstract":"<div><p>Waste classification is an essential part of environmental pollution management in modern society. Object detection is an accurate and efficient way to classify waste, which is conducive to recycling resources. However, due to low object discriminability, existing waste classification models cannot classify waste in low-illumination scenes. A waste classification model, Dark-Waste, is designed to classify wastes in a low-illumination scenario. Firstly, to solve the scarcity of training data, an efficient and low-cost Illumination Conversion method is proposed to generate the low-light image. Secondly, the improved ConvNeXt network is combined with YOLOv5 to accurately and efficiently classify waste. Finally, we validated the model on a self-built dataset in real scenarios. The experimental results show that Dark-Waste achieves the best detection performance in low-illumination scenes. The Dark-Waste provides a new approach to waste management in complex environments and effectively contributes to the sustainable development of the urban ecological environment.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107274"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complete recycling of polymers and dyes from polyester/cotton blended textiles via cost-effective and destruction-minimized dissolution, swelling, precipitation, and separation 通过成本效益高、破坏性小的溶解、溶胀、沉淀和分离，从聚酯/棉混纺纺织品中完全回收聚合物和染料

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107275

Bingnan Mu , Xiaoqing Yu , Yuanyi Shao , Lauren McBride , Hannah Hidalgo , Yiqi Yang

{"title":"Complete recycling of polymers and dyes from polyester/cotton blended textiles via cost-effective and destruction-minimized dissolution, swelling, precipitation, and separation","authors":"Bingnan Mu , Xiaoqing Yu , Yuanyi Shao , Lauren McBride , Hannah Hidalgo , Yiqi Yang","doi":"10.1016/j.resconrec.2023.107275","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107275","url":null,"abstract":"<div><p>The lack of economic dye-polymer and fiber-fiber separations for blended textiles prevents large-scale textile recycling. We focus on a clean, cost-effective, and destruction-minimized fiber-to-fiber recycling, suitable for polyester/cotton blended textiles. Here, dyed polyester was dissolved and separated from the blend, followed by controllable polyester precipitation to retain its dyes separately in the solution. The remaining-colored cotton was swollen to remove its dyes after cleavage of dye-cellulose bonds. Colorless polyester and cotton were regenerated into fibers with similar and 60 % higher tenacity than those before the recycling, respectively. Recycled fibers also had desirable dyeability, including dye exhaustion and colorfastness, after being dyed with the dyes extracted from the polyester/cotton blends, via our newly developed solvent dyeing system. More than 99 % of the solvent used in the recycling was recycled. Our recycling had a cost and energy consumption of less than 20 % of the production of virgin materials.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107275"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparative life cycle analysis of PHA-based consumer items for daily use 基于PHA的日用消费品的比较生命周期分析

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107242

Mateo Saavedra del Oso , Rakesh Nair , Miguel Mauricio-Iglesias , Almudena Hospido

{"title":"Comparative life cycle analysis of PHA-based consumer items for daily use","authors":"Mateo Saavedra del Oso , Rakesh Nair , Miguel Mauricio-Iglesias , Almudena Hospido","doi":"10.1016/j.resconrec.2023.107242","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107242","url":null,"abstract":"<div><p>USABLE Packaging project has developed an innovative value chain based on mixed microbial cultures using organic wastes as feedstock to produce prototypes of PHA-based items that were compared to their commercial counterparts, so the expected better environmental performance can be checked. To do so, a cradle-to-grave life cycle assessment was carried out. The system was modeled integrating all available knowledge, from pilot-scale data to process simulators, and following upscaling frameworks. PHA-based items outperform their commercial counterparts since they show environmental benefits thanks to the avoided electricity obtained in the cogeneration heat and power unit within the PHA production; however, these environmental benefits are very sensitive to the substituted electricity environmental burdens. The different levels of development and market implementation are seen as critical and therefore attention should be paid on how upscaling affects the results and interpretation of the LCA while serving as a guide for process and product development.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107242"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rules are meant to be broken – Rethinking the regulations on the use of food waste as animal feed 规则注定要被打破——重新思考将食物垃圾用作动物饲料的规定

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107273

Gerald C. Shurson , Ellen S. Dierenfeld , Zhengxia Dou

{"title":"Rules are meant to be broken – Rethinking the regulations on the use of food waste as animal feed","authors":"Gerald C. Shurson , Ellen S. Dierenfeld , Zhengxia Dou","doi":"10.1016/j.resconrec.2023.107273","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107273","url":null,"abstract":"<div><p>The magnitude of global food loss and waste requires a major overhaul of economies and food supply chains to reduce food insecurity, environmental burdens, and economic losses. Reducing food loss and waste and improving access and distribution to feed hungry people are the highest priorities. The next highest value is converting energy and nutrients in food waste (FW) materials into animal feeds to produce more food while recovering resources and reducing environmental costs. Governments in Japan, South Korea, and Taiwan have developed laws, regulations, economic incentives, subsidies, and infrastructure to require collection and recycling of all sources of FW and promote the conversion of a high proportion (>65 %) to safe animal feed. Many countries have extensive laws and regulations designed to prevent transmission of animal diseases that could occur from feeding FW, but those in the U.S. and E.U. are too restrictive based on current heat processing technology and monitoring systems available, resulting in only 5–10 % of available FW used in animal feeds. In China, despite difficulties controlling African swine fever virus, new government initiatives show promise for developing guidelines, infrastructure, and processes for diverting more of the 350 million tonnes of annual FW toward safe animal feed.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107273"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The impact of allocation methods on carbon benefits - a case study of construction waste recycling 分配方式对碳效益的影响——以建筑垃圾回收利用为例

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107269

Xiangjin Wang , Beijia Huang , Yao Wang , Junxi Liu , Yuqiong Long , Ichiro Daigo

{"title":"The impact of allocation methods on carbon benefits - a case study of construction waste recycling","authors":"Xiangjin Wang , Beijia Huang , Yao Wang , Junxi Liu , Yuqiong Long , Ichiro Daigo","doi":"10.1016/j.resconrec.2023.107269","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107269","url":null,"abstract":"<div><p>Recycling is crucial to address environmental issues caused by increasing wastes. Recycled materials can replace primary materials and offset greenhouse gas emissions, resulting in a carbon benefit. The environmental burdens and benefits of recycling cause broad discussions about the allocation of the burdens and benefits in life cycle assessment. The recycling situations and recyclability of different materials may be different, therefore, different allocation methods shall be selected. However, a common procedure for selecting the allocation method is missing, which led to difficulty in fairly and reasonably assessing the recycling benefits of wastes from the end-of-life product. In this work, we investigated the impact of carbon emissions in the end-of-life stage with a case of construction wastes. Five allocation methods were selected. A sensitivity analysis was conducted to identify factors influencing carbon benefit outcomes. Based on the case studies, we summarized the strengths and limitations of different allocation methods. Finally, a policy-oriented framework for selecting an allocation method was proposed. Our work serves as a basis for allocation method selection and also as a reference for quantifying the carbon benefit of recycled wastes.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107269"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of rational decisions in technical inefficiency analysis of Spanish pig farms: The influence of water use management 理性决策在西班牙养猪场技术效率分析中的作用：用水管理的影响

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107278

Amer Ait Sidhoum , Maria Vrachioli , Bouali Guesmi , J. Maria Gil

{"title":"The role of rational decisions in technical inefficiency analysis of Spanish pig farms: The influence of water use management","authors":"Amer Ait Sidhoum , Maria Vrachioli , Bouali Guesmi , J. Maria Gil","doi":"10.1016/j.resconrec.2023.107278","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107278","url":null,"abstract":"<div><p>There has been limited research on the degree to which rational inefficiency arises when environmental factors are considered. Thus, our goal is to contribute to the literature by applying the concept of rational inefficiency to pig farming and investigating the relationship between water use and farm technical efficiency levels. This research aims to provide a better understanding of the complex interactions between pig farming production, the natural environment, and economic performance. The stochastic frontier analysis is applied to a cross-section dataset of 523 Catalan farms specialized in pig production in 2018. The main findings of this study are as follows: First, Catalan pig farming exhibits high levels of technical efficiency with an average score of 0.94, which is consistent with the high intensity and concentration of Spanish pork production. Second, there is no compelling evidence to support the rational inefficiency hypothesis, particularly when comparing the rational efficient and multi-efficient groups.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107278"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fighting Fire with Fire: Carbon-Negative Heat Production in Canada's North Using Pyrolysis of Fire-Killed Trees 以火还火：加拿大北部利用被烧毁树木的热解产生碳负热量

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107189

William Gagnon , Benjamin Goldstein

{"title":"Fighting Fire with Fire: Carbon-Negative Heat Production in Canada's North Using Pyrolysis of Fire-Killed Trees","authors":"William Gagnon , Benjamin Goldstein","doi":"10.1016/j.resconrec.2023.107189","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107189","url":null,"abstract":"<div><p>Heating buildings in Northern communities is carbon-intensive and existing low-carbon technologies are ill-suited for northern conditions. Pyrogenic carbon capture and storage (Pyro-CCS), which heats biomass anoxically to produce fuels and biochar, could provide low-carbon heat in this climate. We calculate the carbon footprint of Pyro-CCS in Northwest Territories (NWT), Canada using wood-pellets and a novel feedstock of fire-killed trees and compare these to conventional heat sources. We find that Pyro-CCS emits 40.9 g CO<sub>2</sub> eq. MJ<sup>-1</sup> using wood-pellets and sequesters -10.3 g CO<sub>2</sub> eq. MJ<sup>-1</sup> using fire-killed trees, compared to emissions of 59.7 g CO<sub>2</sub> eq. MJ<sup>-1</sup> for wood-pellet combustion, and 79.4-89.9 g CO<sub>2</sub> eq. MJ<sup>-1</sup> for fossil fuels. Scenarios suggest that widespread Pyro-CCS could allow the heating sector in NWT to achieve 1.5°C-aligned emissions reductions targets using only 121 km<sup>2</sup> of burned forests annually (∼ 2% of annual burn in NWT). We propose five policies to promote Pyro-CCS and transform NWT into a model for northern decarbonization.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107189"},"PeriodicalIF":13.2,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Costs and benefits of constructed wetlands for meeting new water quality standards from China's wastewater treatment plants 人工湿地满足中国污水处理厂新水质标准的成本和效益

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-21 DOI: 10.1016/j.resconrec.2023.107248

Jialin Chen , Fei Guo , Fengchang Wu , Brett A. Bryan

引用次数: 0

Synergistic effects of economic benefits, resource conservation and carbon mitigation of kitchen waste recycling from the perspective of carbon neutrality 碳中和视角下餐厨废弃物资源化利用的经济效益、资源节约和碳减排协同效应

IF 13.2 1区环境科学与生态学

Resources Conservation and Recycling Pub Date : 2023-10-19 DOI: 10.1016/j.resconrec.2023.107262

Zhaohua Wang , Shuxuan Wang , Hao Li , Yang Lu , Bin Zhang , Hongzhi Zhang , Shuang Zhang

{"title":"Synergistic effects of economic benefits, resource conservation and carbon mitigation of kitchen waste recycling from the perspective of carbon neutrality","authors":"Zhaohua Wang , Shuxuan Wang , Hao Li , Yang Lu , Bin Zhang , Hongzhi Zhang , Shuang Zhang","doi":"10.1016/j.resconrec.2023.107262","DOIUrl":"https://doi.org/10.1016/j.resconrec.2023.107262","url":null,"abstract":"<div><p><span><span>Kitchen waste, accounts for 40 %∼60 % of China's municipal solid waste, which recycles not only avoid waste of resources, but also reduces </span>greenhouse gas emissions<span>. Based on the survey data of Beijing municipal waste treatment plant<span><span>, this study uses life cycle assessment<span><span> to evaluate three kinds of kitchen waste treatment modes: aerobic composting, </span>anaerobic digestion and anaerobic synergy. Then we analyze the </span></span>technical feasibility, economic benefits and mitigation potential of three waste treatment modes. The anaerobic synergy has the highest technical feasibility and economic benefits. The total </span></span></span>carbon emissions<span> of different modes, through quantifying its emissions of collection, transportation, disposal and leakage<span>, was aerobic composting > anaerobic digestion > anaerobic synergy. If all kitchen waste were treated with anaerobic synergy, cumulative carbon mitigation per person during 2025∼2060 was expected to 1019.2—1813.2 kg. Thus, recycling kitchen waste has a large mitigation potential to achieve China's carbon neutrality.</span></span></p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"199 ","pages":"Article 107262"},"PeriodicalIF":13.2,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50202288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0