A bi-objective robust optimization model for hazardous hospital waste collection and disposal network design problem
- PDF / 1,993,509 Bytes
- 20 Pages / 595.276 x 790.866 pts Page_size
- 53 Downloads / 171 Views
ORIGINAL ARTICLE
A bi‑objective robust optimization model for hazardous hospital waste collection and disposal network design problem Zahra Homayouni1 · Mir Saman Pishvaee1 Received: 15 June 2019 / Accepted: 11 July 2020 © Springer Japan KK, part of Springer Nature 2020
Abstract The hazardous hospital waste (HHW) is one of the main problems in urban waste management, which requires the design and implementation of a special collection and disposal system. Hospital wastes were known as important hazardous waste to be efficiently disposed within a short operational time in order to prevent the spread of infections and diseases. In this research, a multi-objective robust optimization model was developed to design a collection and disposal network of HHW under uncertain condition. The objectives are to concurrently minimize the total cost including transportation and operations costs, and the total risk of transportation and operations. To solve the proposed bi-objective model, the augmented ε-constraint method was employed. Moreover, the model validation is achieved using and solving several test problems in different sizes, and the analysis of the robust model was performed compared to the deterministic model. Finally, a real case study was conducted to demonstrate the applicability of the research’s methodology, which was done by determining Pareto front and performing a sensitivity analysis to evolve the managerial insights. Keywords Hazardous hospital waste · Augmented ε-constraint · Robust optimization · Risk
Introduction Hospitals, healthcare centers, medical research centers, pharmacies, laboratories, etc. are the origins of medical wastes. Hospital waste is considered hazardous waste, because it may contain infectious substances and can cause adverse effects on the environment and human health. This type of waste has a broad definition and refers to all waste generated in the hospital which is contained infectious and non-infectious substances waste, hazardous waste, chemical waste, and other non-hazardous waste. Medical waste, health care waste is often considered a subgroup of hospital waste. The definition of medical waste differs widely from country to country. This type of waste is any infectious waste that is generated in the treatment, examination, diagnosis, or research of hospitals, clinics, laboratories, and research centers. In addition, medical waste can be generated at home during health care [1].
* Mir Saman Pishvaee [email protected] 1
School of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran
According to the World Health Organization (WHO), the term infectious waste is specifically defined as waste containing infectious substances, pathological waste, blood or blood products, contaminated incisions, and parts of the body (e.g., from discarded diagnostic samples). This type of waste includes all medical and healthcare waste that has the potential to transmit human or animal infectious agents [2]. Therefore, disrespecting the principles of hospital was
Data Loading...
