The design studies of the Mirjaveh landfill cell are being conducted with the aim of establishing an optimized, safe, and environmentally compliant waste disposal system. These studies include a thorough assessment of the geological, hydrological, and structural parameters of the area, with a focus on designing drainage liners, leachate collection systems, and landfill gas management. Special attention is given to preventing soil and groundwater contamination, as well as enhancing efficiency in waste management. These studies provide a solid scientific and technical foundation for the successful and sustainable implementation of the waste disposal project in Mirjaveh. The results of the design studies ensure compliance with environmental and technical regulations and play a vital role in safeguarding public health and protecting the regional environment.