Life Cycle Assessment of a Dynamic Sand Filter Continuous Upflow Sand Filtration System in Wastewater Treatment

Abstract

This paper presents a detailed life cycle assessment (LCA) of a Dynamic Sand Filter continuous upflow sand filtration system used in municipal and industrial wastewater treatment. This study evaluates the environmental impacts associated with raw material extraction, manufacturing, transportation, operation, and end-of-life disposal. Using the TRACI methodology and following ISO 14040/44 standards, the results indicate that operational energy use, primarily electricity consumption, is the dominant environmental contributor, accounting for over 99% of total Global Warming Potential (GWP). Comparative analyses demonstrate that Dynamic Sand Filter outperforms conventional Dynamic Sand Filtration Methods (DSFMs) in both energy and emission efficiency across multiple wastewater treatment scenarios. The findings emphasize the environmental advantages of continuous filtration systems and highlight opportunities for further optimization through renewable energy integration and eco-design improvements, with the technology presenting savings of over 40 percent lower CO2 per cubic meter in operational emissions and over 25 percent lower overall energy consumption. Additionally, this research includes further comparison with conventional Rapid Sand Filters and simulated suggestions to enhance ecological footprint.