Search Results (14)

A major issue recurrent in sustainability ensuring concerns is pollution due to human activities, mainly related to the reduction in waste generation. The present study aims to identify students’ awareness of waste management, their daily routines in separately collecting recyclable waste, and their behaviors leading to reducing wasteful consumption in campus residential living, in a large university in the Western part of Romania, to channel the strategic plan of the university and the efforts of institutional teams dealing with the issues of waste management and sustainability. The methodology consists of an analysis of waste management in the university campus hosting around 6000 students in 16 dormitories, and of an anonymous online survey mapping the self-perceived behavior of students in solid waste management. Data from 1172 valid responses are refined through factorial analysis. While recycling behavior seems to be largely shared by the respondents, with more than 50% declaring that they always reuse recyclables, separate collection of waste is typical for only a quarter of the sample. Therefore, a vigorous intervention is needed to guide young adults’ behavior towards sustainability choices. Campus greening needs to join interventions from the university, in charge of campus life in the selected case, city administration, waste management companies, and the student body. The findings are useful to explore the possible directions for action to increase or contribute to territorial sustainability in the socio-ecological context of Timisoara, the largest university city in the western part of Romania through educational, managerial, and policy interventions, based on local partnerships and collaborations, in accordance with SDG 17. Full article

In the context of a dry port, sustainable operations involve developing and implementing policies and procedures that reduce adverse effects on the environment, advance economic viability, and strengthen social responsibility. Several factors contribute to achieving environmental, economic, and social sustainability, making it critical to identify the factors influencing the sustainability of dry port operations. This research aims to identify decisive factors associated with economic, social, and environmental sustainability, and to develop a framework for measuring sustainability in dry port operations. The research utilises exploratory factor analysis (EFA) and the analytical hierarchical process (AHP) to develop a measurement framework for assessing the sustainability of Ethiopian dry ports. EFA is an effective method with which to identify factors that contribute to sustainable dry port operations. To provide a frame for the critical sustainability performance metrics for dry ports, the AHP approach was used. Data were collected from 300 stakeholders using surveys to identify key factors, and 20 senior experts were involved in validating and rating the most influential factors determining dry port sustainability. This research asserts the most pertinent factors guiding dry port sustainability operations, resource allocation, and decision-making. From an environmental sustainability perspective, critical factors include minimising business-partner impacts, reducing waste, addressing climate change, providing environmental planning education to teams, and implementing measures to protect the national environment. From a social perspective, the factors identified include a resettlement policy, employment opportunities for the community, workplace safety, stakeholder consultation, and top-management guidance. From an economic standpoint, critical factors include value-added services, reduced transportation costs, decreased time, enhanced productivity in the trade supply chain, and profit orientation. The research provides valuable insights with which to guide the development of practices and policies aimed at ensuring sustainable dry port operations, a critical domain of the trade supply chain. Full article

Effective waste management is of paramount importance as it contributes significantly to environmental preservation, mitigates health hazards, and aids in the preservation of precious resources. Conversely, mishandling waste not only presents severe environmental risks but can also disrupt the balance of ecosystems and pose threats to biodiversity. The emission of carbon dioxide, methane, and greenhouse gases (GHGs) can constitute a significant factor in the progression of global warming and climate change, consequently giving rise to atmospheric pollution. This pollution, in turn, has the potential to exacerbate respiratory ailments, elevate the likelihood of cardiovascular disorders, and negatively impact overall public health. Hence, efficient management of trash is extremely crucial in any society. It requires integrating technology and innovative solutions, which can help eradicate this global issue. The internet of things (IoT) is a revolutionary communication paradigm with significant contributions to remote monitoring and control. IoT-based trash management aids remote garbage level monitoring but entails drawbacks like high installation and maintenance costs, increased electronic waste production (53 million metric tons in 2013), and substantial energy consumption for always-vigilant IoT devices. Our research endeavors to formulate a comprehensive model for an efficient and cost-effective waste collection system. It emphasizes the need for global commitment by policymakers, stakeholders, and civil society, working together to achieve a common goal. In order to mitigate the depletion of manpower, fuel resources, and time, our proposed method leverages quick response (QR) codes to enable the remote monitoring of waste bin capacity across diverse city locations. We propose to minimize the deployment of IoT devices, utilizing them only when absolutely necessary and thereby allocating their use exclusively to central garbage collection facilities. Our solution places the onus of monitoring garbage levels at the community level firmly on the shoulders of civilians, demonstrating that a critical aspect of any technology is its ability to interact and collaborate with humans. Within our framework, citizens will employ our proposed mobile application to scan QR codes affixed to waste bins, select the relevant garbage level, and transmit this data to the waste collection teams’ database. Subsequently, these teams will plan for optimized garbage collection procedures, considering parameters such as garbage volume and the most efficient collection routes aimed at minimizing both time and fuel consumption. Full article

The performance of sustainability in infrastructure projects continues to face challenges in its implementation and attainment in developing countries, one of which is the lack of appraisal tools and indicators for the assessment of sustainability. Studies indicate that there are no formal indicators for sustainability assessment on road infrastructure projects in Tanzania, the lack of which limits the determination of whether projects implemented are sustainable or not. Therefore, this study aimed at determining the key sustainability assessment indicators used for road infrastructure projects in Tanzania. A concurrent mixed research approach was adopted in which the sample was purposively selected. A content analysis and descriptive statistics using the Statistical Package for the Social Sciences (SPSS 20.0) were used to analyze qualitative and quantitative data, respectively. The findings indicate that 24 indicators are applicable to Tanzania. Among the highly ranked include “health and safety training to workers”, “health and safety personnel in the project team”, “site barriers and safety warning signs”, “personal protective equipment (PPE) provision”, and “waste collection”. The qualitative results further support the identified sustainability assessment indicators on road infrastructure projects in Tanzania, with one new indicator of “air quality” emerging. The findings inform the government and other relevant stakeholders in the construction industry including planners, designers, and project managers of the key sustainability assessment indicators for roads, which would influence regulation as well as policies to improve the sustainability performance of road projects in Tanzania. Full article

The digitization of ancient artifacts and the fabrication of sustainable 3D-printed replicas present a promising solution for enhancing the accessibility to cultural heritage sites for visitors with disabilities. This article focuses on the case study of the Piraeus Archaeological Museum. The study investigates the process of digitizing a selection of ancient artifacts from the museum’s collection and utilizing 3D printing technology to produce tactile replicas from recycled Polylactic Acid (PLA) material that provide a multisensory experience for individuals with disabilities like vision impairment. The research examines the technical challenges and considerations faced by the authors’ team during the 3D scanning process of the artifacts, the manufacturing of raw material from 3D printing waste, as well as the optimization of 3D printing parameters to ensure the creation of high-quality 3D-printed replicas. Furthermore, the article points out the positive future impact that the 3D-printed replicas will have on the engagement and comprehension of vision-impaired visitors, highlighting the potential of this approach in promoting inclusivity and fostering a connection with cultural heritage. Full article

The aim of this study is to calculate the average carbon footprint per capita from the transportation of the Ice Hockey League in Turkey and Lithuania in the 2021–2022 season. In addition, we identified the opinions of team managers of the national hockey leagues in Turkey and Lithuania regarding the problems and possible solutions related to the sustainable environment and persons’ right to a clean and safe environment in the sport sector. In this study, which was limited to the Turkish Ice Hockey Intercity Super League and the Lithuanian National Ice Hockey League in the 2021–2022 Season, eight teams from Turkey and five teams from Lithuania took part in the research. The type of vehicle used by each team and the total traveled distance were used for the collection of data. Interviews were conducted using a semi-structured interview format seeking to identify problems and solutions proposed by sports managers regarding environmental sustainability and the implementation of persons’ right to a clean and safe environment in the sport sector. Five managers from Turkey and two managers from Lithuania were randomly selected for the research. The average carbon footprint per person was calculated as 88.23 kg/CO₂-e due to the travels of the Ice Hockey Super League teams participating in the 2021–2022 Season matches in Turkey. The average carbon footprint per capita was calculated as 0.5229 kg/CO₂-e, as Ice Hockey Super League teams in the 2021–2022 Season traveled to participate in matches organized in Lithuania. For solving the above-mentioned problems, the sports experts offered recommendations such as energy saving, less waste generation and reducing water consumption in order to achieve the environmental protection goals of the sports leaders. Since both teams often travel due to the intense league schedules, the Ice Hockey Super League goal should be to reduce carbon emissions, especially those related to transportation. Energy conservation policies should also be implemented, and environmentally friendly practices should be emphasized. Full article

The concept of a “green hospital” is used in reference to a hospital that includes the environment as part of its quality services and one that pays attention to the sustainable design of buildings. Waste disposal represents a potential risk for the environment; therefore, waste collection from healthcare centers is a key environmental issue. Our study aims to systematically review the experiences acquired in worldwide nosocomial settings related to the management of healthcare waste. Nineteen studies, selected between January 2020 and April 2022 on Scopus, MEDLINE/PubMed and Web of Science databases were included in our systematic narrative review. Operating room and hemodialysis activities seem to be the procedures most associated with waste production. To deal with waste production, the 5Rs rule (reduce, reuse, recycle, rethink and research) was a common suggested strategy to derive the maximum practical benefit while generating the minimum amount of waste. In this context, the COVID-19 pandemic slowed down the greening process of nosocomial environments. Waste management requires a multifactorial approach to deal with medical waste management, even considering the climate change that the world is experiencing. Education of health personnel and managers, regulation by governmental institutions, creation of an “environmental greening team”, and awareness of stakeholders and policymakers are some of the measures needed for the greening of healthcare facilities. Full article

Packaging plays a key role in preserving food products during transportation. Therefore, selecting proper packaging crates to transport fruits from farms to the market can dramatically reduce loss and waste. This study aims to evaluate the environmental impact of two packaging alternatives when transporting citrus products in Jordan using the loss ratio, as an indicator to select the best packaging, based on the traveled distances. The research team tracked transportation trucks from several farms to the market. In addition, data were collected from the department of statistics in Jordan to build the model using OpenLCA Software with defined system boundaries. However, the results revealed that polypropylene crates performed better than polystyrene crates. Citrus loss during transportation was cut by at least 60% when using polypropylene crates. The use of polypropylene crates reduced product damages by handling better the vibration and load stress, especially with increased transport distances to the “Central Market of fruits and vegetables”. Different impact categories were evaluated. We selected 3 categories based on the hotspot analysis performed: climate change, resource depletion, and water resource depletion. Farm waste has the highest impact with ranges of 58–69%, 77–85%, and 77–81%, respectively. Other impactful waste is waste from packaging and inedible parts; they influence the impact categories up to 23%, 11%, and 17%, in the same order. In terms of environmental impact, the polypropylene crates have fewer impacts since they are reusable and recyclable at the end of the product life cycle. Therefore, we recommend adopting polypropylene crates when transporting citrus products to the market. As a future research direction, the study suggests performing a similar analysis to evaluate the effect of packaging crates on other agricultural products in Jordan. Full article

Universities are today seen as living labs for the creation of knowledge with the aim of transferring it to society. The integration of sustainability is a critical point in this context, as solutions for problems experienced in society can be experimented with regarding physical aspects, such as Solid Waste Management (SWM), and efficiency in energy and water use, but also social aspects such as accessibility, equality, and inclusion. This paper explores the implementation of similar SWM projects in two European universities, Milan-Bicocca University and Instituto Superior Técnico from Lisbon University. Milan-Bicocca was the pioneer project that followed an ambitious model that demanded the removal of all isolated waste bins from inside the offices and rooms, replacing them with waste collection islands in the public spaces. This meant a very coordinated procedure and communication plan, and inspired the pilot project in Instituto Superior Técnico, currently in the expansion phase. This paper describes the implementation of each model and their specificities, and a roadmap is proposed that resulted from the interactions, meetings, and discussions between the two teams, Italian and Portuguese. Full article

Transport activities and citizen mobility have a deep impact on enlarged smart cities. By analyzing Big Data streams generated through Internet of Things (IoT) devices, this paper aims to show the efficiency of using IoT analytics, as an agile optimization input for solving real-time problems in smart cities. IoT analytics has become the main core of large-scale Internet applications, however, its utilization in optimization approaches for real-time configuration and dynamic conditions of a smart city has been less discussed. The challenging research topic is how to reach real-time IoT analytics for use in optimization approaches. In this paper, we consider integrating IoT analytics into agile optimization problems. A realistic waste collection problem is modeled as a dynamic team orienteering problem with mandatory visits. Open data repositories from smart cities are used for extracting the IoT analytics to achieve maximum advantage under the city environment condition. Our developed methodology allows us to process real-time information gathered from IoT systems in order to optimize the vehicle routing decision under dynamic changes of the traffic environments. A series of computational experiments is provided in order to illustrate our approach and discuss its effectiveness. In these experiments, a traditional static approach is compared against a dynamic one. In the former, the solution is calculated only once at the beginning, while in the latter, the solution is re-calculated periodically as new data are obtained. The results of the experiments clearly show that our proposed dynamic approach outperforms the static one in terms of rewards. Full article

Optimal biosafety and biosecurity are major requirements of global health security. This study assessed the biorisk management in the reference veterinary laboratory of Parakou (Benin). The study was cross-sectional, descriptive, and evaluative. The non-probability sampling method with the reasoned choice was used. The Food and Agriculture Organization laboratory mapping tool-safety was used to collect information from the laboratory team. Group discussion, working environment observation, and document exploitation were the data collection techniques. The biorisk management was rated good if the average indicator of the laboratory reached at least 80%. Otherwise, the biorisk management was rated insufficient. The overall laboratory biosafety and biosecurity score was insufficient (42.4%). Per area, the scores were 26.7% for engineering, 33.3% for administration, 53.8% for personal protective equipment, and 62.3% for the operational. There was no area or category score that reached 80%. Containment, waste disposal, and personal protective equipment disposal were the best performing categories with a score above 60%. The laboratory has no biosafety and accident prevention program. Its premises require renovation. The standard operating procedures for biosafety are not yet finalized, and the training mechanism is not optimal. Therefore, strong advocacy and implementation of a biorisk management improvement plan appear as urgent corrective actions which are required to help the reference veterinary laboratory of Parakou in its task to protect the livestock and, ultimately, the people of Benin from dangerous diseases and emerging pathogens. Full article

Prefabrication (PC) projects have many advantages, such as cost and energy savings and waste reduction. However, some problems still exist that hamper the development of prefabrication projects. To improve PC project performance and advance innovation in construction, this study introduces an innovative method that incorporates Radio Frequency Identification (RFID) and Long Range (LoRa) technologies, sensor networks, the BIM model and cloud computing to automatically collect, analyze and display real-time information about PC components. It can locate PC components on a construction site and monitor their structural performance during the installation process. RFID technology and strain sensors were used to collect the required data on a construction site. All the data was transmitted to a server using LoRa technology. Then, the cloud-based Building Information Modelling (BIM) model of the project was developed to store and vividly present project information and real-time onsite data. Moreover, the cloud-based BIM model enables project team members to access the project information from anywhere by using mobile devices. The proposed system was tested on a real PC project to validate its effectiveness. The results indicate that the sensor network can provide reliable data via LoRa technology, and a PC component can be accurately located on site. Also, the monitoring data of structural performance for the PC component during the installation process is acceptable. The proposed method using innovative technologies can improve PC project performance and help industry professionals by providing sufficient required information. Full article

Personal and physical injuries are two of the most relevant costs to hospitals. Hospital laundries are sources of these costs due to the physical and health risks present in the clothes and the activities performed. Energy and environmental risk and infrastructure issues also incur operational costs to these organizations and to the health system. This research analyzes the social, environmental, and economic risk in the hospital laundry process, through a multiple-case-study design. Data collection methods include interviews regarding three hospital laundry services in Brazil. The processes of these laundry services have a high consumption of resources (water and energy) and a substantial generation of solid and liquid wastes. Cost reduction actions include pooled laundry services and material substitution. There are also social and environmental risks, the most frequent being ergonomic, biological, and chemical hazards, and injures from sharp devices inadequately disposed. Hospital laundries need more sustainable operations, not only in the infrastructure, but also mostly in the awareness of leaders and teams about the importance of their engagements to resource management and waste reduction in laundry. It is opportune to convince professionals and users about changing habits that do not prioritize sustainability, especially its social and environmental aspects. Full article

The U.S. generates more than 37 million metric tons of food waste each year, and over 95% of it is disposed of at U.S. landfills. This paper describes the development of a novel food waste collection kiosk and business model called “Greenbox” that will collect and store food waste from households and restaurants with incentives for user participation to spur food waste-to-energy production in a local community. Greenbox offers a low-cost collection point to divert food waste from landfills, reduce greenhouse gases from decomposition, and aid in generating cleaner energy. A functional prototype was successfully developed by a team of engineering students and a business model was created as part of a senior design capstone course. Each Greenbox unit has the potential to reduce 275 metric tons of food waste per year, remove 1320 kg of greenhouse gases, and create 470,000 liters of methane gas while providing a payback period of 4.2 years and a rate of return of 14.9%. Full article