Development and Validation of a Laboratory Prototype for the Study of Microplastic Generation in Drinking Water Pipelines

Abstract Submission: Microplastics, defined as plastic particles smaller than 5 mm, have become a widespread contaminant in aquatic environments, posing risks to both ecosystems and human health. Recent research suggests that microplastics may be generated within water distribution systems, particularly under hydraulic stress conditions such as water hammer. These particles can originate from the degradation of polymeric materials used in pipelines, potentially contaminating drinking water supplies. In response, our research focuses on developing and validating a laboratory prototype designed to simulate hydraulic transients, specifically water hammer, in drinking water pipelines. This prototype allows for controlled experimentation, enabling the study of factors such as pressure magnitude, event duration, and material composition on microplastic generation. Preliminary findings indicate a direct correlation between the severity of hydraulic transients and the quantity of microplastics released. Higher pressure magnitudes and longer duration events significantly increase microplastic generation, with certain polymeric materials showing greater susceptibility to degradation. The study also identifies potential mitigation strategies, including pipeline design modifications and operational controls to minimize pressure transients. These findings provide critical insights into the mechanical processes contributing to microplastic contamination in drinking water systems and offer guidance for improving treatment technologies and regulatory standards to enhance drinking water safety and quality.

Learning Objectives/Expected Outcome (Optional) :