Geomembrane Technology Application in Pulo Nasi: A Pathway to Hygienic Salt Production

Salt is a strategic commodity due to its vital role in various industries and its implications for national security and economic stability. However, Indonesia continues to heavily rely on salt imports despite its extensive coastline. This study examines the implementation of geomembrane technology in salt production by the Sirana Jaya salt group in Pulo Nasi, Aceh, aiming to address challenges in local production and improve the quality. The research included socialization, training, and the adoption of geomembrane layers, which enhanced evaporation efficiency by reducing soil contact and optimizing sunlight absorption. Results demonstrated a significant improvement in salt production, with production time reduced from 40 days to 25 days and quality enhanced over three years (2022–2024). In 2022, salt quality was low, marked by dark and uneven crystals. By 2024, the salt quality had improved significantly, producing larger, whiter, and cleaner crystals that met quality standards. Geomembrane technology also enabled continuous production during adverse weather conditions, mitigating traditional challenges such as dependency on dry seasons. This innovation demonstrates the potential to reduce Indonesia’s reliance on salt imports, empower local farmers, and enhance the competitiveness of the national salt industry. Geomembrane technology provides a sustainable and scalable model for local salt production, fostering better economic and industrial resilience.