Plastic Pipes Conference Association # 2023 Lake Buena Vista
Peter Youssef, Sultan Alkendi, Hussein Basha
Bahr El-Baqar Water Treatment Plant, produces 2 billion m3 per year, introduces a sustainable solution for environmental pollution recovery and irrigation water source (via recycling the water of Bahr El- Baqar drain); whereas it protects the environment and generates water to support the cultivation of 4000 km2 in Sinai. Bahr El-Baqar treatment plant has a total footprint of 650,000 m2. The geographic location of this massive project proved to be one of the biggest technical challenges to overcome. Near the banks of the Suez Canal, the soil conditions were not ideal for such an ambitious project, with the highwater table and loose soil conditions excluding most types of conventional piping materials due to the expected ground movement and aggressive nature of the surrounding environment.
The solution was the use of pipes made of HDPE, as both solid and structured walled HDPE pipes have been used in key Egyptian projects with great success. Given the large diameter requirements of this project and the tight delivery schedule, the use of structured wall pipes became the piping solution of choice for all project pipe requirements from intake to outfall. The project selected the pipe manufacturer to supply the spiral wound HDPE pipes for the project. The company manufactured and supplied 2.7 km of 1600 mm and 2500 mm diameter spirally wound PE pipes for low-pressure application (2.2 bar) for the wastewater treatment plant. Given that the project required pipes with different stiffnesses and pressure ratings, the pipe manufacturer decided on using a PE100 material to allow for effective modeling and designing of the pipeline network.
PE100 is a bimodal material that combines processability and mechanical properties. Lending itself well to be used in the production of spiral wound pipes with stringent design and project requirements.
The benefits of HDPE Spiral wound pipes:
- Low installation cost – HDPE is flexible and lighter compared to conventional piping systems
- Low maintenance cost –Corrosion resistance during the operational life of the pipeline
- Low operational cost – Pipes made from HDPE have smooth internal bores that facilitate superior flow Weldability – Because of its weldability, PE joints have low leakage rates leading to superior performance throughout its full life cycle.
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