Stormwater Symposium

Oral

395246 - Assessing the Performance of Bioretentions and Sand Filter Basins using a Low Impact Development Test Bed at The University of Texas at San Antonio Main Campus

Tuesday, June 5
8:30 AM - 10:00 AM
Location: Greenway AB
Co-Authors: Vahid Zarezadeh, San Antonio, TX – University of Texas at San Antonio; Crista Cerda, San Antonio, TX – University of Texas at San Antonio; Arianne Bazilio, San Antonio, TX – University of Texas at San Antonio; Aldo Hernandez, San Antonio, TX – University of Texas at San Antonio; Christopher Adkison, San Antonio, TX – University of Texas at San Antonio; Heather Shipley, San Antonio, TX – University of Texas at San Antonio

Urban development adversely affects surface and groundwater quality and quantity. Low Impact Development (LID) are decentralized strategies that control runoff by better mimicking pre-development or natural hydrologic processes and by providing treatment of stormwater. Even though LID controls, such as bioretention and sand filters, can enhance significantly the quality of urban stormwater, there are still significant barriers for its widespread use in new and retrofitted urban environments. Among some of the barriers are the lack of better understanding of how the different types of LID controls perform in comparison to each other. That occurs because LID performance is highly dependent of local conditions such as design parameters (media, plants) and climate. Most studies found in the literature investigate single LID controls. There is a lack of methodologies for the objective assessment of different LID designs operating under the same conditions. The objective of this study is to implement a LID test bed to assess the stormwater treatment of bioretentions and sand filter basins. The study include assessing the removal performance of different media (sandy loam, crushed limestone and recycled glass) using columns experiments, and implementing a full scale LID test bed, composed of a series of parallel bioretention and sand filter cells. The present work discusses some of the preliminary results and design aspects of the LID testbed. This research project will advance our understanding of the benefits and risks of the use of LID, in particular on top of recharge zone of vulnerable aquifers.

Send Email for Marcio Hofheinz Giacomoni


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395246 - Assessing the Performance of Bioretentions and Sand Filter Basins using a Low Impact Development Test Bed at The University of Texas at San Antonio Main Campus



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