Fatemeh Keshavarz-Ghorbani - Department of Industrial Engineering, Faculty of Engineering,Kharazmi University, Tehran, Iran
Seyed Hamid Reza Pasandideh - Department of Industrial Engineering, Faculty of Engineering,Kharazmi University, Tehran, Iran
Hamidreza Izadbakhsh - Department of Industrial Engineering, Faculty of Engineering,Kharazmi University, Tehran, Iran

In this paper, a bi-objective agro-supply chain model is presented to optimize the economic and environmental impacts of freshness-keeping efforts for agricultural products. In this regard, products with different quality levels are purchased from producers to be kept in a multi-temperature system and used for nearly one year. In addition, this paper deals with storage location decisions, transportation, and inventory planning. In order to solve the problem, an augmented ɛ-constraint method is proposed converting a bi-objective model to a single objective. The augmented ɛ-constraint method will provide an efficient Pareto frontier contemplating a proper balance between total cost minimization and CO۲ emission reduction.

Agro-supply chain, Augmented ɛ-constraint method, Multi-temperature storage system