An integrated multi-stage vehicle routing and mixed-model job-shop-type robotic disassembly sequence scheduling problem for e-waste management system

Abstract

The rapid development of technology has reduced the longevity of electronic products; this can be led to increase generation of electronic and electrical waste worldwide. The protection of the environment and the optimum use of non-renewable resources should be our priority in today's world. Therefore, e-waste management involves two crucial processes of the collection and recovery of e-waste that ought to be considered in an e-waste management. Thus, this paper presents a new integrated multi-stage model for a comprehensive e-waste management system in three levels of vehicle routing, disassembly sequence scheduling, and allocation of vehicles for transporting components. This model minimizes three objectives of total costs of collocation and transportation, total pollution emissions by trucks and vehicles, and carbon footprint by robots, and the total cost of disassembling products simultaneously. Moreover, our study is novel in some aspects such as integrated decisions related to vehicle routing and disassembly sequence scheduling, compatible truck for collecting e-waste, mixed-model disassembly by robots, and job-shoptype disassembly layout. Afterwards, several numerical examples are presented in different scales to examine the model's efficiency. An exact and meta-heuristic method are applied to solve the model. Finally, by changing some parameters, the useful sensitivity analysis is presented.

Asynchronous parallel disassembly sequence planning method of complex products using discrete multi-objective optimization

“…According to Table 3, there are tool conflicts among Part 14, Part 18, and Part 30. The corresponding APD disassembly sequence can be expressed as K = fk 1 , k 2 , k 3 g: 32,22,23,25,36,21,35,20,34,31,19,10,12,13,11,9,38,8,30,18,40,37,14,26,16,29,24,27,28,39,7,17,2,4,3,1,5,6,15, 41…”

“…It can be used to achieve maximum profits through systematic disassembly operation. Malekkhouyan et al 24 presented a new integrated multi-stage model for a comprehensive e-waste management system in the certain level of the product disassembly sequence scheduling. By considering the total pollution emissions, the carbon footprint by robots, and the total cost of disassembling products as the optimization objectives, the disassembly sequence scheduling was optimized.…”

A Review of Heuristics and Hybrid Methods for Green Vehicle Routing Problems considering Emissions

“…Another recent problem related to the WCVRP is the recovery and collection of electronic and electrical equipment waste. Malekkhouyan et al [121] introduced the integrated multistage vehicle routing and mixed-model robotic disassembly sequence scheduling problem on an e-waste management system. +e problem objective is to minimize total costs of collocation and transportation, total pollution of CO 2 emissions by vehicles, the carbon footprint by robots, and the total cost of disassembling products simultaneously.…”

“…Pickups and deliveries-related problemsFatemi-Anaraki et al[75] Waste collection-related problems Malekkhouyan et al[121] …”

A heterogeneous electric taxi fleet routing problem with recharging stations to maximize the company’s profit

“…Research shows that people are drawn to non-fossil fuels. Environmental protection and optimal use of non-renewable resources are the priority of societies in today's world [20]. To achieve these goals, it is necessary to minimize the use of fossil fuels in transportation.…”