Article
Engineering, Environmental
Bruno Gambalonga, Joao Lucas Nicolini, Jordana Mariot Inocente, Claus Troger Pich, Elidio Angioletto, Fabiano Raupp Pereira, Oscar Rubem Klegues Montedo, Sabrina Arcaro
Summary: This study aims to evaluate the value of metal smelting waste foundry sand (WFS) as an aggregate in hot-mix asphalt mixtures (HMA) using systematic criteria. The results showed that a composition containing 10 wt% of waste foundry sand was suitable for recovery into HMA.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Green & Sustainable Science & Technology
Venkata Siva Naga Sai Goli, Devendra Narain Singh
Summary: The utilization of landfill-mined plastic waste and landfill-mined-soil like-fractions is necessary. However, concerns over emissions and environmental contamination need to be addressed. Creating polymer composites with LMPW as binder and LFMSF as filler would help reduce the negative impact on the environment. The research looked into the influence of LFMSF content on the overall characteristics of CompoSERs and found that a critical filler content of 30% by weight could change the trends of mechanical properties.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
M. Lourdes Gonzalez-Arqueros, Gabriela Dominguez-Vazquez, Ruth Alfaro-Cuevas-Villanueva, Isabel Israde-Alcantara, Otoniel Buenrostro-Delgado
Summary: The study demonstrates the presence of heavy metals and arsenic in a closed dump where hazardous waste was clandestinely confined for 20 years. It highlights the common illegal practice of landfilling hazardous waste with urban solid waste, the hazards posed by heavy metals and arsenic, and the deficiencies in operation, closure, and legislation. This information is crucial for improving laws and aiding decision makers in territorial planning to enhance public and environmental health.
Article
Green & Sustainable Science & Technology
Hichem Krour, Nacef Tazi, Romain Trauchessec, Amor Ben Fraj, Andre Lecomte, Rachida Idir, Laury Barnes-Davin, Breffni Bolze
Summary: The aim of this study is to improve the sustainability of cement and concrete mixes by using recycled aggregates in the production of recycled clinker and cement. The findings confirm the feasibility of producing clinkers and cements with recycled aggregates, meeting the industry's required performance, and reducing resource depletion in the cement industry.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Wasim Malek, Reza Mortazavi, Catia Cialani, Jonas Nordstrom
Summary: Waste management policies aim to redirect waste to more sustainable methods such as energy recovery and recycling. This study analyzed data from 14 European countries from 1996 to 2018 and found that landfill bans led to a decrease in landfill waste but an increase in incineration, energy recovery, and recycling waste. The landfill tax was associated with an increase in energy recovery waste but a reduction in incineration and recycling waste. The deposit refund scheme was linked to a decrease in landfill waste. Furthermore, both the landfill tax and the deposit refund scheme were correlated with a reduction in total waste generated. These findings contribute to the limited literature on waste management policies and provide valuable insights for policy makers.
Article
Environmental Sciences
Jun Liu, Zhenlin Li, Weizhuo Zhang, Hesong Jin, Feng Xing, Chaoyun Chen, Luping Tang, Yanshuai Wang
Summary: This study investigated the feasibility of using municipal solid waste incineration bottom ash (MSWIBA) for the manufacture of cold-bonded aggregates (CBAs). The results showed that CBAs produced from MSWIBA had good properties and the heating water curing environment significantly improved their comprehensive properties.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Purbashree Sarmah, Takeshi Katsumi, Atsushi Yamawaki, Atsushi Takai, Kiyoshi Omine, Takeshi Ishiguro, Yoichi Doi, Yuya Nakase, Shimon Ideguchi
Summary: The study on physical and mechanical properties of waste ground in inert waste landfills in Japan reveals the influence of fibrous content and dry density on the design and planning, providing valuable guidance for safe and cost-effective methodologies.
Article
Chemistry, Multidisciplinary
Nahyeon Lee, Soosan Kim, Jechan Lee
Summary: The study demonstrates that CO2-assisted pyrolysis of waste tea bags can result in higher heating value and increased yield of pyrolytic gases, while preventing the formation of environmental pollutants. This research highlights the effectiveness of CO2 utilization in the pyrolysis of everyday waste.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Environmental Sciences
Linlin Lu, Wei Fan, Shengbo Ge, Rock Keey Liew, Yang Shi, Hao Dou, Shujuan Wang, Su Shiung Lam
Summary: This paper reviews the current progress of recycling and reuse of waste silk, which is a result of the improvements in living standards and the throw away culture of mankind. The utilization of waste silk in various applications, such as energy, fabric, composites, skincare, biological tissue engineering, filtration, and electronics, is explored. The modification, optimization, and application of regenerated silk fibroin extracted from waste silk show great potential for industrialization and sustainable development. Furthermore, making waste silk functional and intelligently wearable provides two promising ways for recycling waste silk with low cost and high return value. The recovery and utilization of waste silk serve as a paradigm for valorization of other fiber-based waste materials.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Chemistry, Multidisciplinary
Sonil Nanda, Franco Berruti
Summary: The USA, China, and India are the top producers of municipal solid waste, with waste composition varying based on income levels. Municipal solid waste management options include recycling, incineration, waste-to-energy conversion, composting, or landfilling. Landfilling is a preferred method globally, with critical factors for sustainability including liners, soil cover thickness, leachate collection, and gas recovery facilities. Landfills act as ecological reactors undergoing various transformations, with bioreactor landfills emerging as a next-generation solution for efficient waste stabilization through controlled recirculation.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Review
Agricultural Engineering
Poonam Sharma, Reena Vishvakarma, Krishna Gautam, Archana Vimal, Vivek Kumar Gaur, Alvina Farooqui, Sunita Varjani, Kaiser Younis
Summary: Sources and effects of citrus waste, applications of pectin, technological utilization, and socioeconomic and environmental perspectives.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Luis Rodriguez-Luna, Diana Bustos-Martinez, Edgar Valenzuela
Summary: Pyrolysis process is an attractive alternative for recycling and reutilization of HDPE, with the ability to produce valuable chemical feedstock and high energy content hydrocarbons. By optimizing the process parameters, a volatile fraction equivalent to 97% of HDPE mass can be obtained. Chemical analysis shows that oil products have a greater variety of shorter-chain compounds compared to wax products.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Review
Engineering, Environmental
Mukesh Bhatt, Anand Gupta Chakinala, Jyeshtharaj B. Joshi, Anita Sharma, K. K. Pant, Kalpit Shah, Abhishek Sharma
Summary: Global economic development and rising living standards have led to resource depletion and increased waste generation, making waste management critical. Thermo-chemical conversion of solid waste into fuel and value-added products is important for sustainable development, but challenges posed by the heterogeneous nature of the waste must be addressed for effective implementation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
Anita Talan, Bhagyashree Tiwari, Bhoomika Yadav, R. D. Tyagi, J. W. C. Wong, P. Drogui
Summary: Management of food waste is a global challenge, with landfill and incineration being the main methods currently used. Biological processes have been explored for resource and energy recovery from food waste, but they have limitations and cannot provide a complete solution. This review aims to analyze available technologies for achieving environmental and economic sustainability, including innovative approaches using integrated biological methods.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Mukesh Kumar Awasthi, Sharareh Harirchi, Taner Sar, V. S. Vigneswaran, Karthik Rajendran, Ricardo Gomez-Garcia, Coralie Hellwig, Parameswaran Binod, Raveendran Sindhu, Aravind Madhavan, A. N. Anoop Kumar, Vinod Kumar, Deepak Kumar, Zengqiang Zhang, Mohammad J. Taherzadeh
Summary: The increase in population and urbanization has led to a significant amount of food waste, and effective waste management is a major concern. However, the perishable nature and high moisture content of food waste are major obstacles to cost-effective valorization. Bioconversion of food waste into value-added products is an environmentally friendly and economically viable approach to address these issues. Targeting the production of multiple products can provide a greater solution.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Joan Esteban-Altabella, Francisco J. Colomer-Mendoza, Antonio Gallardo-Izquierdo
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2017)
Article
Engineering, Environmental
A. Gallardo, M. Carlos, F. J. Colomer, N. Edo-Alcon
WASTE MANAGEMENT & RESEARCH
(2018)
Article
Multidisciplinary Sciences
Felipe Bastida, Carlos Garcia, Noah Fierer, David J. Eldridge, Matthew A. Bowker, Sebastian Abades, Fernando D. Alfaro, Asmeret Asefaw Berhe, Nick A. Cutler, Antonio Gallardo, Laura Garcia-Velazquez, Stephen C. Hart, Patrick E. Hayese, Teresa Hernandez, Zeng-Yei Hseu, Nico Jehmlich, Martin Kirchmair, Hans Lambers, Sigrid Neuhauser, Victor M. Pena-Ramirez, Cecilia A. Perez, Sasha C. Reed, Fernanda Santos, Christina Siebe, Benjamin W. Sullivan, Pankaj Trivedi, Alfonso Vera, Mark A. Williams, Jose Luis Moreno, Manuel Delgado-Baquerizo
NATURE COMMUNICATIONS
(2019)
Article
Green & Sustainable Science & Technology
Mar Carlos, Antonio Gallardo, Natalia Edo-Alcon, Juan Ramon Abaso
Article
Biochemistry & Molecular Biology
Felipe Bastida, David J. Eldridge, Sebastian Abades, Fernando D. Alfaro, Antonio Gallardo, Laura Garcia-Velazquez, Carlos Garcia, Stephen C. Hart, Cecilia A. Perez, Fernanda Santos, Pankaj Trivedi, Mark A. Williams, Manuel Delgado-Baquerizo
Article
Green & Sustainable Science & Technology
Joan Esteban-Altabella, Francisco J. Colomer-Mendoza, Antonio Gallardo, Natalia Edo-Alcon
Article
Ecology
Manuel Delgado-Baquerizo, Peter B. Reich, Chanda Trivedi, David J. Eldridge, Sebastian Abades, Fernando D. Alfaro, Felipe Bastida, Asmeret A. Berhe, Nick A. Cutler, Antonio Gallardo, Laura Garcia-Velazquez, Stephen C. Hart, Patrick E. Hayes, Ji-Zheng He, Zeng-Yei Hseu, Hang-Wei Hu, Martin Kirchmair, Sigrid Neuhauser, Cecilia A. Perez, Sasha C. Reed, Fernanda Santos, Benjamin W. Sullivan, Pankaj Trivedi, Jun-Tao Wang, Luis Weber-Grullon, Mark A. Williams, Brajesh K. Singh
NATURE ECOLOGY & EVOLUTION
(2020)
Article
Green & Sustainable Science & Technology
Jeronimo Franco Gonzalez, Antonio Gallardo Izquierdo, Florian Commans, Mar Carlos
Summary: By implementing eco-driving in a Spanish waste-collection fleet, an average fuel consumption decrease of 7.45% was observed, leading to nearly 120,000 liters of diesel economized and significant financial savings. The environmental impact in terms of exhaust emission decrease was also substantial.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Mar Carlos-Alberola, Antonio Gallardo Izquierdo, Francisco J. Colomer-Mendoza, Esther Barreda-Albert
Summary: Waste collection is a crucial public service in a town, but in some places where economic and management resources are lacking, it is not effectively implemented, leading to risks of pollution and unhealthy conditions for residents.
Article
Construction & Building Technology
A. M. Pitarch, L. Reig, A. Gallardo, L. Soriano, M. Borrachero, S. Rochina
Summary: Spent fluorescent lamps glass (SFLG) waste can be partially used as a replacement for Portland cement, exhibiting similar pozzolanic activity. Mortars containing 35% SFLG meet specifications for other pozzolanic materials and have comparable compressive strength values after 90 curing days.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Multidisciplinary Sciences
Antonio Gallardo, Francisco J. Colomer-Mendoza, Mar Carlos-Alberola, Cristobal Badenes, Natalia Edo-Alcon, Joan Esteban-Altabella
Summary: A six-month pilot scheme in Castello de la Plana, Spain, focused on biowaste recycling showed a gradual increase in the quality rate of biowaste in containers, reaching 90%, and an improvement in biowaste separation rates over time, indicating increased citizen collaboration. However, analysis revealed that as the containerization rate of biowaste decreased, the collection rate increased, suggesting the need to increase containerization for better efficiency.
SCIENTIFIC REPORTS
(2021)
Article
Green & Sustainable Science & Technology
Estefani Rondon Toro, Amaya Lobo, Antonio Gallardo Izquierdo
Summary: Circular Economy is crucial for sustainability, and waste processing plants play a key role in minimizing resource loss. This study proposes a new circularity indicator for municipal solid waste treatment plants, which evaluates material and energy recovery efficiency.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Jeronimo Franco-Gonzalez, Antonio Gallardo, Mar Carlos, Natalia Edo-Alcon
Summary: This study analyzes the use of sensors in waste collection systems with high collection frequency. By installing volumetric sensors, the filling pattern of the bins was studied. The results show similar filling degree patterns across all cases and citizens not following recommended waste disposal times. Additionally, the cost of sensors is significant for medium-sized towns, suggesting the need to only install sensors at specific points for analysis.
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.
