Article
Green & Sustainable Science & Technology
Lisandro Simao, Marcelo Tramontin Souza, Manuel J. Ribeiro, Oscar Rubem Klegues Montedo, Dachamir Hotza, Rui M. Novais, Fabiano Raupp-Pereira
Summary: The study examines the potential for utilizing stone waste (SW) from the dimension stone industry, finding promising applications in ceramics and cement. New recycling proposals are also suggested to address the environmental impact of SW.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Jayvant Choudhary, Brind Kumar, Ankit Gupta
Summary: This study investigated the potential of using four construction wastes as fillers in asphalt concrete mixes through a decision-based ranking framework. The research found that asphalt mixes containing LD, CD, and GP exhibited superior resistance against rutting and cracking. Mixes with CD and LD displayed better moisture resistance, while LD and BD fillers were more economical and environmentally friendly.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Samir B. Eskander, Hosam M. Saleh, Magda E. Tawfik, Talat A. Bayoumi
Summary: The study demonstrates that cement-polymer composites containing recycled waste polystyrene foam maintain good compressive strength and enhanced corrosion resistance after immersion in various types of water, and alterations of internal structure of composite specimens were observed after prolonged immersion.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2021)
Article
Materials Science, Textiles
Chengfeng Zhou, Junzhe Dong, Shoubin Zhang, Qingjian Zhang, Ming Wang, Lisha Zheng, Guangting Han, Wei Jiang
Summary: A near-infrared classification method was introduced in this study for the classification and identification of waste cotton from different countries. The optimized model achieved a high recognition rate and a prediction accuracy of 99% for six countries, demonstrating its effectiveness for fast and accurate identification of waste cotton.
TEXTILE RESEARCH JOURNAL
(2023)
Article
Construction & Building Technology
Fabiola Colmenero Fonseca, Javier Carcel-Carrasco, Aurora Martinez-Corral, Jangveer Kaur, Jaime Llinares Millan
Summary: The construction and demolition sectors generate significant amounts of waste, making waste management and environmental protection crucial. Proper waste disposal can increase its value and contribute to the economy. This article examines the economic potential of construction and demolition waste and analyzes different waste management processes in Spain. Data collected from various regions show varying prices per ton for waste disposal. Sustainable waste management is influenced by several factors and has a positive impact on recycling and reevaluating waste.
Article
Green & Sustainable Science & Technology
Samad M. E. Sepasgozar, Deirdre Frances Mair, Faham Tahmasebinia, Sara Shirowzhan, Heng Li, Amy Richter, Liming Yang, Shixiong Xu
Summary: The study examines current literature on construction waste management in four selected countries using novel metrics and social network analysis techniques to identify key authors, influential universities, collaboration practices, and research trends. The findings aim to help scholars set future research directions based on the advances and limitations identified in the literature.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Polymer Science
Jordi-Roger Riba, Rosa Cantero, Pol Riba-Mosoll, Rita Puig
Summary: The exponential growth of the textile industry has caused significant environmental concerns. This paper proposes an automatic classification method based on the principles of circular economy to handle textile waste and obtain high-quality recycled materials. The results show that the method is effective and can be automated at an industrial scale.
Article
Green & Sustainable Science & Technology
Zhikun Ding, Zhiyu Zhang, Weilin Chen, Lian Duan
Summary: The generation and stock of construction and demolition waste is increasing in China, which poses serious environmental and economic problems. However, the lack of publicity and promotion has resulted in low acceptance of recycled materials from C&D waste in the market. This study investigates the mechanisms of different presentation forms of counter-stereotype intervention materials and finds that the intervention is effective in suppressing stereotypes and the effects are similar for both video and graphic formats.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Neurosciences
Zhikun Ding, Zhiyu Zhang, Weilin Chen
Summary: The increasing hazards caused by construction and demolition (C&D) waste is a significant issue in the construction industry. Many countries have implemented policies to encourage C&D waste recycling, but most of these policies only regulate contractors and do not promote recycling products. This study uses functional near infrared spectroscopy (fNIRS) to investigate the influence of media on consumers' willingness to purchase recycling products for C&D waste. The results show that intervention significantly increases consumers' choice to purchase recycled C&D waste products and activates certain brain regions associated with purchase decisions. This study highlights the importance of interdisciplinary research and demonstrates the potential of fNIRS in engineering management and neuroscience.
FRONTIERS IN NEUROSCIENCE
(2022)
Review
Engineering, Environmental
Charlotte Abdy, Yuqing Zhang, Jiawei Wang, Yang Yang, Ignacio Artamendi, Bob Allen
Summary: This paper reviews the importance of pyrolysis technology in achieving plastic waste recycling goals, focusing on the pyrolysis process and products of polyolefin plastic waste. It also discusses the potential application of pyrolysis products as a binder material in hot mix asphalt and identifies future research trends.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Green & Sustainable Science & Technology
Ying Sun, Zhaolin Gu
Summary: This article evaluates the evolutionary behavior of government agencies, waste recyclers, and waste producers in construction waste recycling using a multi-agent stochastic game model. The findings reveal that government agencies should adopt a positive supervision approach, lower sorting and disposal costs can enhance construction waste recycling, and the existence of uncertainty in the environment will influence participants' strategy selection.
Article
Engineering, Environmental
Xiaozheng Chen, Nils Kroell, Jan Wickel, Alexander Feil
Summary: Flexible multilayer plastic packaging, popular in food and medical sectors, faces challenges in recycling. Near-infrared spectroscopy technology can be used for the classification of post-consumer multilayer plastic packaging, with an accuracy exceeding 96%.
Article
Green & Sustainable Science & Technology
Feng Guo, Junwu Wang, Yinghui Song
Summary: This paper develops a four-party evolutionary game model to study how to improve the recycling rate of construction waste in China. The results show that government subsidies can encourage enterprises to actively participate in construction waste recycling, but may not promote consumers to buy renewable products. Mobilizing public participation and regulating carbon trading price can have positive effects on construction waste recycling.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Construction & Building Technology
Juan A. Ferriz-Papi, Edward Weekes, Nik Whitehead, Angela Lee
Summary: This paper presents a simple and cost-effective procedure for characterizing recycled aggregates from construction and demolition waste. The procedure, known as Aggregate Potential (Physical) (AP(P)), utilizes tests to evaluate the quality and potential uses of the aggregates, and suggests methods to improve their manufacturing and market application for a more circular economy.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Environmental
M. H. Samarakoon, P. G. Ranjith, Wen Hui Duan, Asadul Haque, Bernard K. Chen
Summary: The feasibility of extensive recycling of waste glass in alkali-activated materials (AAMs) was evaluated for its potential as a partial activator and mineral precursor. Waste glass-based activator showed effective formation of sodium silicate minerals and could be utilised up to 17% by mass of total binder. In terms of cost and CO2 emissions, waste glass activations are significantly cheaper and greener than ordinary Portland cement (OPC).
Article
Multidisciplinary Sciences
Wen Xiao, Jianhong Yang, Huaiying Fang, Jiangteng Zhuang, Yuedong Ku
Article
Materials Science, Characterization & Testing
Jiangteng Zhuang, Jianhong Yang, Huaiying Fang, Wen Xiao, Yuedong Ku
JOURNAL OF TESTING AND EVALUATION
(2019)
Article
Green & Sustainable Science & Technology
Wen Xiao, Jianhong Yang, Huaiying Fang, Jiangteng Zhuang, Yuedong Ku, Xiaojun Zhang
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2020)
Article
Environmental Sciences
Yuedong Ku, Jianhong Yang, Huaiying Fang, Wen Xiao, Jiangteng Zhuang
Summary: This study introduces a robot for sorting construction and demolition waste, which can finely classify a large number of objects before mixing, thus improving the level of resource utilization. By implementing a deep learning method for grasping detection, the accuracy of robotic grasping has been significantly increased, meeting the efficiency and accuracy requirements for CDW sorting under actual working conditions.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Automation & Control Systems
Yue-Dong Ku, Jian-Hong Yang, Huai-Ying Fang, Wen Xiao, Jiang-Teng Zhuang
INTERNATIONAL JOURNAL OF AUTOMATION AND COMPUTING
(2020)
Article
Engineering, Environmental
Xiaojian Liu, Bei Wang, Yayun Ma, Xiangyang Zhou, Juan Yang, Yuehui He, Jingjing Tang, Fanyun Su, Wan Yang
Summary: This study proposes a combined process of reduction roasting of herb-medicine residue and oxalic acid leaching to improve the recovery efficiency of lithium from spent lithium-ion batteries. By utilizing the reducing gas produced from the pyrolysis of herb-medicine residue, the layered structure of the cathode powder is destroyed and converted into Li2CO3, Ni, Co, and MnO. Additionally, selective extraction of lithium is achieved using oxalic acid, and the efficiency and kinetics of lithium extraction are improved under the combined action of herb-medicine residue and oxalic acid.
Article
Engineering, Environmental
Muxina Konarova, Nuno Batalha, Gabriel Fraga, Mohamed H. M. Ahmed, Steven Pratt, Bronwyn Laycock
Summary: This study presents a proof of concept for a technology that integrates PET recovery from mixed plastic waste and plastic pyrolysis. By depolymerizing PET into TPA using a low volatility oil as medium, it achieves low-pressure operation and a selective separation and recovery of TPA from the product mix. Full PET conversion and high TPA recovery were achieved, making it an effective solution for processing mixed waste streams and improving the yield and quality of liquid product from thermal pyrolysis compared to untreated feedstock.
Article
Engineering, Environmental
Zhenhua Sun, Jing Li, Xuejiang Wang, Siqing Xia, Jianfu Zhao
Summary: This study investigated the influence of in-situ formed MgFe2O4 on the hydrothermal treatment of swine manure. The results showed that the in-situ formation of MgFe2O4 improved the dehydration and decarboxylation of organic components in swine manure, thereby improving its carbonization degree. Furthermore, it enhanced the stabilization of heavy metals and the retention of phosphorus. MgFe2O4 modified hydrochars exhibited remarkable adsorption capacity for Pb(II) and Cu(II) without any leaching of heavy metals.
Article
Engineering, Environmental
Yijing Jiang, Boyang Leng, Jingxin Xi
Summary: The increased generation of municipal solid waste has had a significant impact on the economy, environment, and public health. The current waste treatment process has limitations. By developing a comprehensive social costing model, this study assesses the impacts of municipal solid waste management throughout its life cycle and provides policymakers with best practices and feasibility information.
Article
Engineering, Environmental
Marina Hernandes de Paula e Silva, Ricardo Coser Mergulha, Jose Geraldo Vidal Vieira, Andrea Brasco Pampanelli, Rodrigo Salvador, Diogo Aparecido Lopes Silva
Summary: This study developed and implemented a self-assessment tool to assist companies in decision-making processes for establishing circular flows based on Lean Manufacturing and Circular Economy principles. The tool utilized a maturity model and was applied to nine companies of varying characteristics. The findings revealed that certain companies showed higher maturity in water-waste and chemical-emissions management, with larger enterprises focusing on these strategies. However, many companies lacked sufficient training and employee awareness prior to seeking cleaner alternatives, and comprehensive actions to manage the product lifecycle were lacking. To address these gaps, the tool provided tailored recommendations for each company to improve their processes, products, and value chain.
Article
Engineering, Environmental
Gamze Dogdu, Turgay Pekdemir, Sanaz Lakestani, Seyda Karabork, Osman Cavus
Summary: This paper presents data on food waste associated with mini size food packaging services, highlighting the difficulties in emptying the food and consumer wastefulness as the main causes. These findings have significant implications for the sustainability of food and relevant packaging.
Article
Engineering, Environmental
Qingxia Li, Xin Kong, Yuxin Chen, Jianan Niu, Jia Jing, Jin Yuan, Yifeng Zhang
Summary: This study investigates how to enhance methane production from food waste after hydrothermal pretreatment. The results demonstrate a significant increase in methane yield when zero-valent iron and magnetite are used together, and high organic loading is favorable for methane production. Microbial diversity analysis further reveals the dominant pathways and metabolic processes involved in methane generation.
Article
Engineering, Environmental
D. H. H. Sim, I. A. W. Tan, L. L. P. Lim, E. T. Lau, B. H. Hameed
Summary: The development of controlled-release fertilizer formulation is important for preventing environmental pollution caused by nutrient leaching and volatilization. This study combined biochar-based fertilizer with encapsulation technology to improve the nutrient release mechanism. Optimal conditions for synthesizing urea-impregnated biochar (UIB) were determined using central composite design, and the release of nitrogen was described by mathematical models. Results showed that encapsulated UIB (EUIB) achieved complete release of nitrogen in water and exhibited improved water retention in sandy-textural soil. Therefore, EUIB derived from peppercorn waste has the potential to be used as a sustainable controlled-release fertilizer for agriculture.
Article
Engineering, Environmental
Yuchuan Wang, Neslihan Akdeniz
Summary: Incorporating biochar into composting systems can increase compost temperatures. This study developed a heat transfer model for a biochar-amended co-composting system and found that biochar increased thermal conductive losses but also enhanced microbial activity, resulting in an overall increase in total heat unit. When biochar was applied on the surface, it mainly functioned as an insulator.
Article
Engineering, Environmental
George Tsalis, Birger Boutrup Jensen, Jessica Aschemann-Witzel
Summary: This paper empirically explores the relationship between retail price promotions and household food waste. The results show that households with a higher proportion of discount food purchases and environmental awareness tend to waste less food, while larger households and those lacking food handling skills tend to waste more food.
Article
Engineering, Environmental
Lukas Friederici, Arne Koch, Patrick Martens, Jana Pantzke, Sebastiano Di Bucchianico, Thorsten Streibel, Christopher P. Rueger, Ralf Zimmermann
Summary: The increasing demand for lightweight materials has led to a rise in fiber-reinforced plastic (FRP) production. However, the properties and compositional range of FRPs pose challenges to recycling strategies. Pyrolysis has emerged as a promising method for separating the fibers from the polymer matrix. This study investigated the pyrolysis process using thermal analysis and high-resolution mass spectrometry, and also assessed the toxicity of the recovered fibers using an in vitro model.
Review
Engineering, Environmental
Devika Kannan, Shakiba Khademolqorani, Nassibeh Janatyan, Somaieh Alavi
Summary: This paper introduces Smart Waste Management (SWM) that applies Industry 4.0 technologies in waste management. A framework called SWM4.0 is developed, which highlights the importance of smart people, smart cities, smart enterprises, and smart factories in achieving successful waste management. The paper also suggests future research directions and managerial implications.