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This research is designed to optimize the business process of a green tea dealer, who is a key supply chain partner of the Sri Lankan tea industry. The most appropriate trips for each vehicle in multiple trip routing systems are identified to minimize the total cost by considering the traveling distance.

The study has followed the concepts in vehicle routing problems and mixed-integer programming mathematical techniques. The model was coded with the Python programming language and was solved with the CPLEX Optimization solver version 12.10. In total, 20 data instances were used from the subjected green tea dealer for the validation of the model.

The result of the numerical experiment showed the ability to access supply over the full capacity of the available fleet. The model achieved optimal traveling distance for all the instances, with the capability of saving 17% of daily transpiration cost as an average.

This study contributes to the three index mixed-integer programing model formulation through in-depth analysis and combination of several extensions of vehicle routing problem.

This study contributes to the three index mixed-integer programming model formulation through in-depth analysis and combination of several extensions of the vehicle routing problem.

The proposed model provides a cost-effective optimal routing plan to the green tea dealer, which satisfies all the practical situations by following the multiple trip vehicle routing problems. Licensee green tea dealer is able to have an optimal fleet size, which is always less than the original fleet size. Elimination of a vehicle from the fleet has the capability of reducing the workforce. Hence, this provides managerial implication for the optimal fleet sizing and route designing.

Developing an optimization model for a tea dealer in Sri Lankan context is important, as this a complex real world case which has a significant importance in export economy of the country and which has not been analyzed or optimized through any previous research effort.

A direct correlation exists between waste disposal, disease spread and public health. This article systematically reviewed healthcare waste and its implication for public health. This review identified and described the associations and impact of waste disposal on public health.

This paper systematically reviewed the literature on waste disposal and its implications for public health by searching Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), PubMed, Web of Science, Scopus and ScienceDirect databases. Of a total of 1,583 studies, 59 articles were selected and reviewed.

The review revealed the spread of infectious diseases and environmental degradation as the most typical implications of improper waste disposal to public health. The impact of waste includes infectious diseases such as cholera, Hepatitis B, respiratory problems, food and metal poisoning, skin infections, and bacteremia, and environmental degradation such as land, water, and air pollution, flooding, drainage obstruction, climate change, and harm to marine and wildlife.

Infectious diseases such as cholera, hepatitis B, respiratory problems, food and metal poisoning, skin infections, bacteremia and environmental degradation such as land, water, and air pollution, flooding, drainage obstruction, climate change, and harm to marine and wildlife are some of the public impacts of improper waste disposal.

Healthcare industry waste is a significant waste that can harm the environment and public health if not properly collected, stored, treated, managed and disposed of. There is a need for knowledge and skills applicable to proper healthcare waste disposal and management. Policies must be developed to implement appropriate waste management to prevent public health threats.

This paper analyzes the cost structure of the municipal waste collection in Japan. Since the municipality in Japan is responsible for dealing with the garbage generated by households, there is plenty of data regarding municipal waste in comparrison to private firms. Nevertheless, there is little research available which analyzes the end-of-life product logistics of municipal waste. This research aims to reveal some structural features of the end-of-life product logistics cycle. Based on more than 1,800 samples, this paper statistically shows that both waste collection and waste processing have a strong scale economy. In addition, this paper will also prove that the consignment to the private entity has made the cost of waste management cheaper in Japan.

Egypt has set plans to transform into a green economy which requires major reforms in the waste sector as one of the most vital sectors crucial for this transformation. This study aims at inspecting the current status of the Egyptian waste sector to highlight the major policy reforms needed. Furthermore, it assesses the economic viability of establishing waste-to-energy (WtE) projects under the current regulations that govern the sector.

The study employed an inductive analytical approach to scrutinize the institutional and regulatory framework of the waste and WtE sectors. Furthermore, a novel techno-economic analysis was conducted to assess the profitability of a WtE plant that employs moving grate incineration technology.

The analysis of the waste sector revealed its deteriorating state and the dire need for immediate restructuring through more stringent regulations to establish an integrated waste management system (IWMS) that incorporates WtE technologies as well as a number of corrective actions that would help enhance the sector. Additionally, the techno-economic analysis revealed the need to amend the current WtE regulation to comprise a gate fee as an indispensable revenue stream for WtE projects.

This study is one of a few studies that uses a new technique of analysis to explore the potential role that WtE projects can play in Egypt as a part of an IWMS that aims at transforming the waste sector into a resource sector while providing a renewable and sustainable source of energy.

To achieve proper waste management, the disposal of electronic waste (e-waste) is one suitable method. Most developing countries, including Malaysia, are facing lack of e-waste recycling facilities and low household participation. Using a survey method using a questionnaire, this study aims to examine the intention of Malaysian households to drop-off their mobile phones to the nearest collection boxes (n = 600).

This study expanded the theory of planned behavior by adding environmental awareness and knowledge. In addition, the cost of disposal and the convenience of the available disposal infrastructure were measured as two parts of the perceived behavioral control.

The results of this study show that environmental knowledge and awareness have a significant impact on attitudes toward recycling intention of the households. In addition, it was also found that the attitude and cost of disposal infrastructure is positively related to household intention.

These results show that if e-waste collection boxes are provided to the nearest community and e-waste management information is distributed, this will increase household participation in e-waste management.

Ontario’s Ministry of Environment and Climate Change seeks to legislate diverse waste streams (including food waste) by implementing Bill 151, known colloquially as the Waste Free Ontario Act. The purpose of this study is to investigate how stakeholders in Ontario’s food and waste systems perceive the prospective legislation.

The paper is based on interviews with stakeholders across the food value chain in Ontario, as well as an analysis of legislation and related documents.

The paper argues that Bill 151 represents the Province’s commitment to an ecological modernization paradigm. This research uncovers the lines of tension that may exist in the implementation of food waste policy. These lines of tension represent stakeholders’ ideological perspectives on food waste, including whether it signals an efficient or inefficient economy, whether legislation should prioritize economic or environmental goals and whether it is more appropriate for legislation to incentivize desired food waste treatments or penalize/prohibit undesired activities.

The analysis reveals potential allies in the regulatory process, likely points of contention and areas where greater consensus may be forged, depending on government efforts to reframe the issues at stake.

Drawing on the upper echelons theory, the study examines the effects of environmental attitudes of hotel managers on the waste management practices of small hotels in the context of a developing country.

A survey involving 246 managers of small hotels in the Accra Metropolitan Area was undertaken using a questionnaire that was based on the Waste Management Hierarchy and the revised New Ecological Paradigm (NEP) scales.

Results of the study showed that environmental attitudes of managers significantly influence the waste management practices of hotels, specifically, the anti-anthropocentricism, anti-exceptionalism, eco-crisis and balance-of-nature dimensions of the NEP scale. The study also found that all the environmental attitude dimensions had more significant effects on the waste disposal option because usually in developing countries, small hotels by their nature are more predisposed to undertaking this option.

Future studies should use longitudinal data to make causal inferences and consider the use of a rigorous statistical test such as common latent factor analysis.

Waste management problems in small hotels require softer sustainability strategies geared towards creating environmental awareness and inculcating the right environmental values in hotel managers in order to change the way managers view the environment.

Results of the study indicate that in the context of small hotels in developing countries, managers with eco-centric attitudes are more likely to engage in less expensive waste management practices rather than the most environmentally-friendly options.

This paper seeks to understand children’s responses to food waste in school by exploring children’s views on food waste and empowering them to discuss and develop their own solutions.

Using creative problem-solving approach and photovoice technique, the authors conducted focus group discussions with 28 primary school children in the UK.

Children have a clear understanding of the consequences of food waste for individuals, society and the environment. They displayed negative emotions concerning food waste and responded positively to the possibility of food recycling. Their solutions to reduce food waste will require multiple stakeholder engagement, including self-regulation, peer-monitoring, teacher supervision and family support. However, rather than relying on intervention schemes that require significant adult involvement, children placed a heavy emphasis on self-regulation, playing an active role in addressing food waste in school.

This research extends previous understanding, by showing children as agentic consumers who can shape food waste solutions in school. These findings are of use to primary teachers and local education authorities, to aid children in developing their own solutions to reduce food waste in their own schools.

Food banks play an increasingly important role in society by mitigating hunger and helping needy people; however, research aimed at improving food bank operations is limited.

This systematic review used Web of Science and Scopus as search engines, which are extensive databases in Operations Research and Management Science. Ninety-five articles regarding food bank operations were deeply analyzed to contribute to this literature review.

Through a systematic literature review, this paper identifies the challenges faced by food banks from an operations management perspective and positions the scientific contributions proposed to address these challenges.

This study makes three main contributions to the current literature. First, this study provides new researchers with an overview of the key features of food bank operations. Second, this study identifies and classifies the proposed optimization models to support food bank managers with decision-making. Finally, this study discusses the challenges of food bank operations and proposes promising future research avenues.

The study examines how introducing joint municipal arm's length bodies (ALBs) into municipal waste management has influenced the preconditions of democratic governance.

The authors describe and explain the democratic implications of joint municipal agencification by reviewing the perspectives of representative and participative democracy. Through this approach, the authors apply the exit–voice framework developed by Albert Hirschman to highlight the potential roles and rights of citizens. This research includes country case studies of Finland and Norway. The authors analyse and systematize Finnish and Norwegian waste and organizational policies by reviewing national regulatory documents, commentaries and guidance materials to identify the fundamental missions and institutional traditions of the alternative organizational forms of joint ALBs.

The study findings highlight that joint agencification has an adverse effect on the democratic governance of waste management policy and services even though these are public monopoly services. They also demonstrate that all joint municipal ALBs limit the classic elements of representative democracy in general, and that private-law ALBs limit residents' rights to influence and participate.

This study contributes to local public management studies by applying Hirschman's theory to comparative reviews of joint agencification and ALBs. It revealed the similarities and differences between the different organizational forms of joint ALBs applied in Finland and Norway. It also demonstrated how the democratic rights of residents depend on how municipalities collaborate.