A new multi-objective mathematical model for hazardous waste management considering social and environmental issues

Document Type: Research Paper

Authors

1 School of Industrial Engineering, College of engineering, University of Tehran, Tehran, Iran

2 School of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran

3 Institute for Manufacturing, University of Cambridge, Cambridge, United Kingdom & W.P. Carey School of Business, Arizona State University, Tempe, United States

Abstract

Hazardous waste management incorporates collection, separation, treatment, recycling and disposal of hazardous wastes. In this paper, a new multi-objective mixed integer model is presented for hazardous waste collection problem. The model aims to minimize transportation and construction costs, and environmental and population risks in hazardous waste management systems. This model is applied in a case study of Iran in order to help decision makers to decide on the location of separation, treatment, recycle, disposal centers, and established technology in treatment center. Moreover, this paper specifies routes between different facilities in collection network. For addressing population and environmental impacts and economical costs, three objective functions including total costs, total population exposure risk, and environmental risks are considered. An augmented ε-constraint method is used to generate Pareto optimal solution for these conflicting objectives. Finally, proposed model is utilized in our case study and numerical results and some managerial insights are provided.

Keywords

Main Subjects


Article Title [Persian]

ارائه مدل ریاضی چندهدفه برای مدیریت زباله‌های خطرناک با در نظرگرفتن معیارهای اجتماعی و محیط‌زیستی

Authors [Persian]

  • مسعود ربانی 1
  • سعید دانش شهرکی 1
  • حامد فرخی اصل 2
  • استنلی فردریک دبلیو تی لیم 3
1 دانشکده مهندسی صنایع، پردیس دانشکده‌های فنی دانشگاه تهران، تهران، ایران
2 دانشکده مهندسی صنایع، دانشگاه علم و صنعت ایران، تهران، ایران
3 دانشکده تولید، دانشگاه کمبریج، کمبریج، بریتانیا و دانشکده کسب و کار کری، دانشگاه ایالتی آریزونا، تمپ، ایالات متحده آمریکا
Abstract [Persian]

مدیریت زباله‌های خطرناک شامل جمع‌آوری، تفکیک، اصلاح، بازیافت و دفن زباله‌های خطرناک می‌شود. در این مقاله، یک مدل ترکیبی چند هدفه برای مسأله زباله‌های خطرناک تهیه شده است. هدف از این مدل، کمینه کردن هزینه‌های ساخت تسهیلات و جابجایی زباله‌های خطرناک، کمینه کردن ریسک خطرات اجتماعی و محیط‌زیستی مدیریت زباله‌های خطرناک می‌باشد. این مدل دارای مطالعه موردی ایران است تا به مدیران تصمیم‌گیران این حوزه برای تصمیم‌گیری درباره مکان تأسیس مراکز تفکیک، اصلاح (با تکنولوژی‌های گوناگون)، بازیافت و دفن زباله‌های خطرناک کمک کند. علاوه بر این، این مقاله مسیرهای ارتباطی بین این مراکز مختلف را نیز مشخص می‌کند. برای بررسی هدف‌های فوق، سه تابع هدف برای هزینه‌ها، تأثیرات اجتماعی و محیط‌زیستی تعریف شده است. برای تولید جواب‌های بهینه پارتویی در سایه وجود توابع هدف تناقض‌دار از روش محدودیت اپسیلون تکامل یافته استفاده شده است. و در نهایت، این مدل پیشنهادی ما در مطالعه موردی و نتایج عددی و ارائه بینش‌های مدیریتی مورد استفاده و اثبات قرار گرفته است.

Keywords [Persian]

  • مدیریت زباله‌های خطرناک
  • برنامه‌ریزی عدد صحیح ترکیبی
  • محدودیت اپسیلون تکامل‌یافته
  • جواب‌های پارتویی و بهینه‌سازی چند هدفه
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