Innovative waste disposal solution saves 30% cost for Germany's rural infrastructure project

In a bid to trim annualized expenses related to decentralized waste disposal system, Germany's Haarbach District Authority in Bavaria chose RAUPROTECT pipes from Rehau based on BorSafe HE3490 LS-H, a polyethylene material (PE 100) from Borealis to ensure a permanently leak-proof solid pressure pipe system for Anleng area residents, as part of a programme of local infrastructure improvements. The new 7.2km long wastewater disposal system connects a agrarian community in Germany to a centralized network using no-dig laying combination to achieve a long-term efficient, cost-effective solution with project cost savings of up to 30% in comparison to the open trench installation. The authority specifically opted for a fast and economic no-dig laying technique using Horizontal Directional Drilling to position the pipeline at a depth of two metres alongside the road for the purpose. "Pipes based on BorSafe HE3490 LS-H were selected for the Anleng project because of their outstanding ability to overcome the challenges of trenchless laying and the specific environmental conditions of this project," comments Frank Krause, Rehau, who provided technical support and on-site supervision for the project. Moreover, owing to the top quality of BorSafe HE3490 LS-H, the minimal scoring caused by the laying process would have no influence on the pipe's life expectancy. Frank Krause concludes: "The combination of Rehau's high performance BorSafe-based pipes and the laying technique used ensured a fast and cost-efficient construction process. Importantly, Haarbach District Authority can be secure in the knowledge that the new wastewater disposal pipe system will provide a long-term solution for Anleng residents." BorSafe HE3490 LS-H is a black, high-density PE material produced using Borealis' unique Borstar® technology. The company claims BorSafe bimodal PE pipes offer excellent resistance to slow cracking, providing maximum protection from the wear and damage that can occur during transportation and installation. Their resilience to point loads caused by sharp-edged stones or bedding materials and to potential pipe wall stress generated by external loads such as traffic, earth settlement or line junctions, adds to the pipe's ability to ensure defect-free operation throughout an economic service life of at least 100 years. Furthermore, the high flexibility of the material ensures pipeline systems remain undamaged in the event of earth movements or earthquake shocks.
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