A stochastic network design problem for hazardous waste management

Yu, Hao; Sun, Xu; Solvang, Wei Deng; Laporte, Gilbert; Lee, C. K. M.

doi:10.1016/j.jclepro.2020.123566

Cited by 66 publications

(28 citation statements)

References 50 publications

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“…With given probability distributions for the stochastic parameters, an infinite number of decision trees can be generated. However, we focus on the model's behavior but not on the scenario generation procedures [56], so the output of the simulation model should be stable with different scenario trees [74], as shown in equation (10). erefore, a Monte Carlo simulation method is used, which runs the AnyLogic model for |S| times in order to test the stability of the analytical results:…”

Section: E Simulation Methodmentioning

confidence: 99%

Solving a Real-World Urban Postal Service System Redesign Problem

Sun

Solvang

et al. 2021

Scientific Programming

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Due to recent technological advancements, more diversified customer demand, and increasingly harder competition, traditional postal service systems have experienced significant changes all over the world. In Norway, through a strategic reform called post-in-shop, undertaken in 2013, most postal services are now provided at postal service counters located in retailer stores in order to improve accessibility, operational efficiency, and cost-effectiveness. This has led to a complex decision-making problem for the redesign of urban postal service networks across the country. In this paper, a two-stage method is proposed to solve a real-world urban postal service network redesign problem. First, two location models are employed to determine the optimal locations of postal service counters. In the second stage, a simulation model is built to evaluate the urban postal service system with different location and demand allocation plans under a realistic and stochastic environment. Among other insights, our results show that the proposed two-stage method can be used to effectively improve the accessibility of postal service networks by making optimal location-allocation decisions.

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Section: E Simulation Methodmentioning

confidence: 99%

Solving a Real-World Urban Postal Service System Redesign Problem

Sun

Solvang

et al. 2021

Scientific Programming

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“…Their mode had considered fuzzy customer satisfaction and was resolved by using Lingo software. Yu et al ( 2020 ) proposed a novel stochastic bi-objective mixed integer linear program to reduce the population exposure to risk and maintain a high cost efficiency of the transportation and treatment of hazardous waste. Homayouni and Pishvaee ( 2020 ) designed a collection and disposal network of hospital wastes under uncertain condition, and the total cost of transportation and operations costs, and the total risk of transportation and operations were minimized.…”

Section: Detailed Analysis Of the Contentmentioning

confidence: 99%

Reverse logistics research of municipal hazardous waste: a literature review

Xin

Wang

et al. 2021

Environ Dev Sustain

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The reverse logistics of municipal hazardous waste (RLMHW) have received close attention from researchers and practitioners alike, given the essential impact of safe transportation and effective management of hazardous waste on public health and environmental sustainability. There are a great number of studies in the extant literature on RLMHW, with many and diverse research topics; however, a concise and complete overview of the research works already conducted in this particular area is conspicuous by its absence. This paper strives to fill the gap through the conduct of rigorous systematic literature review of RLMHW in the past three decades, and then establish a framework of studies on RLMHW. The main contributions of this study are as follows: (1) to identify the trend of journals publishing research papers on RLMHW; (2) to extract the main topics in studies on RLMHW; (3) to locate the most popular research areas of RLMHW; (4) to summarize the methods adopted in studies on RLMHW; (5) to identify research deficiencies in certain categories of RLMHW; and (6) to establish the future research directions of RLMHW. The main implications of the study are to offer a better understanding of RLMHW by systematic crystallization of archival data in a systematic chronological order across central issues. This study contributes to scholarly debate in this field by serving as a snapshot paper to document the development of the field and gives input to policymakers in process design and policy making in the domain of RLMHW.

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“…[19][20][21] In developing countries, landfills are the most common method of waste disposal and unfortunately uses the scarce arable land resources for landfill thereby contributing to land degradation because of the non-degradable toxic buried wastes which emits dangerous gases that impact the environment negatively. 17,22,23 Recycling of clinical wastes can reduce landfill and environmental pollutions, because their addition as fillers in building and construction materials provide opportunity for their reuse in large amount.…”

Section: Introductionmentioning

confidence: 99%

Thermal energy storage phase change material cement mortar incorporated with clinical waste composites

et al. 2021

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Clinical wastes generated from hospitals and other health care institutions have increased globally, partly because of COVID-19 pandemic. Appropriate handling and disposal of this wastes is important because of their impact on human and environment. One approach is the use this wastes as composite fillers in phase change material (PCM) added into concrete and mortars used in built sector. This study investigates silicon catheter waste (SCW) and latex glove waste (LGW) as fillers mix with PCM cement mortar and evaluates the thermal performance. To determine a viable inclusion method for the cement mortar varying weight (2.5, 5.0, 7.5, and 10.0)% of PCM mixed with SCW and LGW were used as replacement of the composite aggregates. Characterization of the encapsulate PCM cement mortar and thermal analysis under elevated temperatures, compressive strength test, water absorption, porosity, and density was conducted. The microstructural analysis and thermal behavior of the modified specimens after 28 days was tested under dynamic ambient condition. From the result the quality of the cement mortar reduced from excellent to poor as the loading concentration increased from 0 to 10%. The addition of the PCM SCW and PCM LGW to the cement mortar reduced the compressive strength by 38% and 40%, respectively. The density value reduced by 3.2% and 6.8% under elevated temperature and the water absorption increased by 56% and 39%. The morphology of PCM cement mortar mixed with SCW and LGW showed less void spaces with increased homogenous formation.No thermal decomposition was observed in the PCM cement mortar with the addition of the SCW and LGW at elevated temperatures. The SCW and LGW fillers increased the thermal conductivity of the PCM mortar by 14% and 18%, and prolonged the surface temperature by 5 hours by an average of 5 C and 7 C, respectively. In addition, the SCW and LGW fillers mixed with PCM cement mortar was found to enhance the thermal performance by 65% compared with the typical cement mortar. There are huge potential on their application in building and construction industry.

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A stochastic network design problem for hazardous waste management

Cited by 66 publications

References 50 publications

Solving a Real-World Urban Postal Service System Redesign Problem

Solving a Real-World Urban Postal Service System Redesign Problem

Reverse logistics research of municipal hazardous waste: a literature review

Thermal energy storage phase change material cement mortar incorporated with clinical waste composites

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