In the fourth stage of the long-term collaboration with the site, the focus was to configure a geomembrane lining system compatible with the geometry of the new cell added to the existing facility. Welding procedures and QA/QC flow established in previous phases were referenced for this stage; however, the slope angles and transition zones of the new cell required the panel layout to be redesigned from scratch. Textured HDPE...

The second phase of the Yaoure site was handled as a technical deployment program requiring the expansion of the waste storage facility (TSF) under tropical climate conditions. Since intense rainfall regimes and high humidity made it necessary to narrow geomembrane welding windows, on-site panel deployment, positioning, and extrusion welding operations were concentrated in the early morning hours; afternoon…

In the dry-hot climate of the Sahel belt, sharp transitions between the rainy and dry seasons require strict schedule discipline in geomembrane installation. In this geography with high UV exposure, the time elapsed from panel deployment to weld completion was kept short, and hot wedge welding was preferred over extrusion welding at midday temperature peaks to guarantee seam quality.…

The Yaoure site is positioned as Perseus’s flagship operation in Côte d'Ivoire, and the construction of the first-phase waste storage facility stood out as a critical procurement item directly affecting the production schedule. Mobilization to the site required additional planning due to logistics bottlenecks coinciding with the pandemic period; the phased arrival schedule of equipment and consumables to the site, the application…

This work carried out for the waste storage facility of the integrated iron and steel plant on the Black Sea coast involved not only geomembrane installation, but also the supply and installation of an entire containment package. GCL (bentonite-based geosynthetic clay liner), geocomposite drainage layer, and HDPE geomembrane were deployed in a compatible sequence as parts of a multi-layer liner system. The chemical nature of the industrial waste…

Carried out throughout the three-phase expansion program, this work covered the phased raising processes starting from the initial construction period of the Ity gold mine's waste storage facility. Each phase was planned to be integrated with the geometry of the previous stage; textured HDPE geomembrane, protection geotextile, and drainage pipelines were cut and welded in compliance with the slope inclinations and base geometry.…

A composite liner approach was adopted at the waste storage facility built in the south of Marmara, at a site where seismic activity is directly reflected in design calculations. The GCL placed on the mineral barrier at the base reached a low permeability value following hydration, forming the secondary containment layer beneath the geomembrane. The HDPE geomembrane panels deployed on top were cut in accordance with the geometry of the storage basin, and the seam lines…