What is the primary benefit of using textured FML in landfill operations?

The primary benefit of using textured flexible membrane liner (FML) in landfill operations is to improve slope stability and safety. Textured surfaces increase friction between the liner and the waste material or the soil beneath it, which helps to stabilize the slopes of the landfill. This added stability is crucial for preventing landslides and ensuring that the waste is contained properly. Maintaining the integrity of the landfill slopes is essential not only for operational safety but also for environmental protection, as it helps to minimize the risk of liner failure and potential leaks.

While the other options may have their own merits, they do not directly address the essential structural and safety aspects involved in landfill management. Reducing manufacturing costs, enhancing flexibility, or improving aesthetic appearance are secondary considerations that do not impact the core functionality of the landfill operations as fundamentally as slope stability does. Thus, the focus on improving slope stability and safety is the most significant benefit of using textured FML in landfill settings.