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913. Sustainable Planning Optimization in Phosphate Open Pit Mines: Exploring Extraction Routing Impact
Invited abstract in session MB-24: Raw Material Supply Chains, stream Sustainable Supply Chains.
Monday, 10:30-12:00Room: 83 (building: 116)
Authors (first author is the speaker)
| 1. | Bassma AZZAMOURI
|
| Africa Business School, Mohammed VI Polytechnic University | |
| 2. | Ahlam AZZAMOURI
|
| EMINES-School of Industrial Management, Mohammed VI Polytechnic University | |
| 3. | Agnes GORGE
|
| Africa Business School, Mohammed VI Polytechnic University |
Abstract
This paper deals with sustainable production in the mining industry. It aims at planning production activities in Open Pit Mines (OPM) of phosphate while considering the impact of extraction routings (ER), in ensuring the necessary diversity of minerals while preserving rare ones. Planning production activities in phosphate OPM for tactical/operational levels consists of selecting the extraction zones, and blocks, machine allocation, and ER choices. Several researchers have worked on machine allocation and block and zone choices, but less attention was given to the ER impact, especially in ensuring the balance between managing the Supply Chain (SC) efficiently and high-quality phosphate preservation. These ERs consist of extracting non-mineral (waste) layers with mineral ones or independently, controlling minerals' characteristics. We focus on a real case of a SC composed of several OPMs where a unique ER is adopted, making satisfying customer requirements challenging with excessive use of high-quality minerals. For this reason, we first conducted an exploratory study to understand the impact of ERs on OPMs. Second, we developed a MILP model to select the optimal ER to adopt. The model provides the corresponding production program of those mines, defined by the quality, volumes, and lead time of phosphate. The results shed light on the difference between the production programs resulting from the use of each ER and the balance ensured between efficiency and sustainability
Keywords
- Optimization Modeling
- Sustainable Development
- OR in Mining
Status: accepted
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