Review
Engineering, Environmental
N. Shailesh Prabhu, Ritanjali Majhi
Summary: The usage and consumption of mobile phones have rapidly increased worldwide, leading to an increase in the generation of obsolete mobile phones. Improper disposal of obsolete mobile phones has adverse consequences on the environment, human health, and metal recovery. This review article focuses on the reasons for replacement, disposal methods, and the importance of reduce, reuse, and recycle (3Rs) for sustainable management. The study also highlights the lack of in-depth research on the recycling of obsolete mobile phones compared to e-waste recycling in general.
WASTE MANAGEMENT & RESEARCH
(2023)
Article
Ergonomics
Mark J. M. Sullman, Aneta M. Przepiorka, Agata P. Blachnio, Tetiana Hill
Summary: Research shows that using a mobile phone while driving is dangerous, yet many drivers still engage in this behavior. Attitudes and perceived behavioral control are key predictors of intentions to use a mobile phone while driving, while risk perceptions play a significant role in intentions to send and read text messages while driving.
ACCIDENT ANALYSIS AND PREVENTION
(2021)
Article
Green & Sustainable Science & Technology
Taher Ben Yahya, Noriza Mohd Jamal, Balan Sundarakani, Siti Zaleha Omain
Summary: This study analyzed the factors influencing the sustainability of mobile phone recycling behavior and found that habit has the strongest positive impact on behavior, while salience has a negative impact. Environmental constraints have no significant influence on behavior.
Article
Engineering, Environmental
Guangzheng Wang, Mengnan Yuan, He Xu
Summary: The study found that subsidy and preferential tax policies have a significant impact on the mobile phone recycling industry, which can drive the development of mobile phone recycling work. It is suggested that when constructing the mobile phone recycling policy system, more attention should be paid to the needs of remanufacturers, and the impact of tax benefits on output and profit should be considered.
Article
Green & Sustainable Science & Technology
Jariya Budnard, Sutha Khaodhiar
Summary: Over the past decade, Thailand imported 21 million units of new mobile phones each year, posing a challenge for waste management systems. The study found that the discarded mobile phone quantity ranged from approximately 1700 to 2500 tons per year over the last ten years, with more than half of the total waste generated in the northeastern and central areas of Thailand in 2021.
Article
Oncology
Joachim Schuz, Kirstin Pirie, Gillian K. Reeves, Sarah Floud, Valerie Beral
Summary: The ongoing debate regarding cellular telephone use and brain tumor risk was addressed by a large-scale prospective study. The findings support the evidence that usual cellular telephone use does not increase the incidence of brain tumors.
JNCI-JOURNAL OF THE NATIONAL CANCER INSTITUTE
(2022)
Article
Multidisciplinary Sciences
Tongxin Chen, Di Zhu, Tao Cheng, Xiaowei Gao, Huanfa Chen
Summary: Exploration of dynamic human activity provides insights into the urban environment and helps with urban management strategies. This study investigates the impact of different restriction phases on human activity through sensing human activity zones (HAZs). Using machine learning classifiers, we find that the variation of human activity during the COVID-19 pandemic is strongly associated with urban characteristics.
Article
Environmental Sciences
Martina Bruno, Luigi Sotera, Silvia Fiore
Summary: This study presents a systematic characterization of 100 waste mobile phones and investigates the profitability of manual dismantling and sale of separated components and materials. The results show that the average lifetime of smartphones is shorter than feature phones, and the main component of waste mobile phones is plastic. However, the market prices for potentially recoverable materials and components are not enough to cover the costs of manual dismantling according to European standard labor costs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Health Care Sciences & Services
Hanneke Poort, Annelise Ryan, Katelyn MacDougall, Paige Malinowski, Anna MacDonald, Zach Markin, William Pirl, Joseph Greer, Karen Fasciano
Summary: The study aimed to evaluate the feasibility and acceptability of a smartphone app called iaya designed to create an engaged community for young adult patients to learn emotional coping skills. Results showed that although the app was deemed acceptable by patients, it did not meet the a priori feasibility criteria as a stand-alone intervention.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Chengxun Wu, Yangyan Shi, Tiru Arthanari, Yangfei Gao, Xiongdong Li
Summary: This research aims to develop a simulation model for the Chinese mobile phone industry's reverse supply chain and analyses the effects of the trade-in program and the government subsidy on the system's behaviour. We adopt a system dynamics (SD) modelling approach, an excellent tool for studying dynamic processes in which new decisions have to be made, and new policies appear. The research outcomes conclude that the trade-in program and the government subsidy have different effects on the system behaviour when collectors compete by taking different acquisition and recycling strategies.
COMPUTERS & INDUSTRIAL ENGINEERING
(2023)
Article
Health Care Sciences & Services
Pelin Ozluk, Rebecca Cobb, Alyson Hoots, Malgorzata Sylwestrzak
Summary: This study evaluates the effectiveness of the mobile app ianacare in improving caregivers' support system, time use, productivity, and health and well-being. The results show that the app is associated with positive changes in various caregiver outcomes, such as increased assistance from personal support networks and reduced time off work for caregiving tasks.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2022)
Article
Ergonomics
Beau Mostyn Sullivan, Amanda M. George, Patricia M. Brown
Summary: The study found that lower premeditation and higher positive urgency from impulsivity facets significantly predicted various MWD behaviors, while higher mobile phone involvement was a stronger predictor of MWD. There were significant indirect effects of positive and negative urgency on MWD behaviors through mobile phone involvement.
ACCIDENT ANALYSIS AND PREVENTION
(2021)
Article
Health Care Sciences & Services
Xuancong Wang, Nikola Vouk, Creighton Heaukulani, Thisum Buddhika, Wijaya Martanto, Jimmy Lee, Robert J. T. Morris
Summary: This paper describes the development and early experiences with a comprehensive digital phenotyping platform called Health Outcomes through Positive Engagement and Self-Empowerment (HOPES). Based on the open-source Beiwe platform, HOPES integrates a wider range of data collection methods, including wearable devices and smartphone sensor data. Requirements were partly derived from a concurrent clinical trial for schizophrenia, leading to the development of significant capabilities in HOPES for security, privacy, ease of use, and scalability.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2021)
Review
Health Care Sciences & Services
Ben Joseph Philip, Mohamed Abdelrazek, Alessio Bonti, Scott Barnett, John Grundy
Summary: This study aims to analyze the data collection aspect of mHealth apps and found that only a small number of apps use built-in sensors or peripherals for collecting health data. The use of Bluetooth is also limited. Further research is needed to explore the use of sensors for data collection and improve user experience.
JMIR MHEALTH AND UHEALTH
(2022)
Article
Geochemistry & Geophysics
Arrate Santaolalla, Piet N. L. Lens, Astrid Barona, Naiara Rojo, Ainhoa Ocio, Gorka Gallastegui
Summary: The study focuses on recovering metals from mobile phone PCBs through a combined process. The effects of ferric iron and sulfuric acid on the leaching processes for copper and nickel were significant, with the combination of two precipitants effectively removing metals from the leachate.
Article
Engineering, Environmental
F. O. Ongondo, I. D. Williams, G. Whitlock
Article
Engineering, Environmental
F. O. Ongondo, I. D. Williams, S. Keynes
Article
Engineering, Environmental
F. O. Ongondo, I. D. Williams
Review
Engineering, Environmental
F. O. Ongondo, I. D. Williams, T. J. Cherrett
Article
Engineering, Environmental
F. O. Ongondo, I. D. Williams, J. Dietrich, C. Carroll
Review
Engineering, Environmental
Francis O. Ongondo, Ian D. Williams
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WASTE AND RESOURCE MANAGEMENT
(2012)
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.