Sustainable Waste Management in Open Pit Mines: Rethinking Inner Dumping Practices in Modern Mining

Abstract

Inner dumping, also known as in-pit dumping, is a waste management practice in open pit and open
cast mining where waste materials are deposited within the mined-out area. While touted for its potential to reduce
environmental footprint and transportation costs, inner dumping presents distinct operational challenges that can
affect mining efficiency. This paper examines key operational challenges including space constraints, logistical
complexities, increased operational costs, and impacts on mine design. Strategies for optimizing inner dumping
practices are explored, emphasizing advanced planning, integrated waste management systems, innovative
techniques, enhanced coordination, and technological investments. By addressing these challenges effectively,
mining operations can enhance operational efficiency and sustainability in waste management practices. This
research contributes to insights essential for improving inner dumping methodologies in modern mining
operations.

Keywords: Open-pit mining, waste-material management, In-pit dumping, operational challenges.