Construction Case of Geomembrane for Large Landfill in Cambodia

In Sisophon, Cambodia, with the acceleration of urbanization, the issue of waste disposal has become increasingly prominent. To effectively address the challenge of waste management and safeguard environmental quality, a large-scale landfill construction project was launched. The total planned area of the project reaches 78,184.19 square meters, including 4 landfill ponds. Each pond measures 150m × 120m × 4m, resulting in a total storage capacity of up to 288,000 cubic meters.

Shandong OBOR New Materials Co.,Ltd during the construction process, extremely strict anti-seepage requirements were imposed on the landfill. After comprehensive consideration from multiple parties, HDPE (High-Density Polyethylene) geomembranes with a thickness of 1.5mm (60mil) and non-woven geotextiles of 400gsm (grams per square meter) were finally selected. Among them, the HDPE geomembranes are made from 100% virgin resin and produced under the ISO 9001 quality control system. They possess excellent anti-seepage and impermeability performance, along with superior corrosion resistance, fully complying with the ASTM GM13 standard. Thus, they are an ideal choice for landfill anti-seepage. Meanwhile, the non-woven geotextiles play a good role in protection and filtration: they can effectively prevent the geomembranes from being punctured by sharp objects, while ensuring the smooth operation of the drainage system.

The on-site construction team was divided into 3 groups. Each group was equipped with 2 welding engineers, who were mainly responsible for welding work, and 10 workers, who assisted in laying the geomembranes and geotextiles. After 20 days of intensive construction, the landfill project was successfully completed. The successful implementation of this project not only solves the urgent problem of waste disposal in Cambodia but also provides valuable experience for other similar projects, highlighting the indispensable and important role of geomembranes in landfill construction.