Doctor of Philosophy, The Ohio State University, 2024, Food, Agricultural and Biological Engineering
Worldwide urbanization and the concurrent increase in impermeable surfaces, such as parking lots, driveways, sidewalks, and other structures, have led to challenges managing runoff in cities. Improperly managed stormwater poses threats to public health, private property, and the environment. Countries worldwide are adopting the use of nature-based approaches known as green infrastructure (GI) to holistically treat environmental stressors resulting from urban development. GI is designed to mimic the natural, pre-development hydrology of the developed area while concurrently improving runoff quality. There are several GI approaches, including permeable pavements (PP), bioretention cells (BRC), and constructed stormwater wetlands (CSW), which can reduce runoff volume, delay and extend runoff timing, improve discharge water quality, and mitigate peak runoff rates from highly impervious catchments.
PPs have been used worldwide for decades, but these systems remain infrequently implemented for stormwater management because of ambiguity related to maintaining their long-term hydraulic functionality due to clogging which reduces the PP surface infiltration rate (SIR) and therefore its performance. Measurements of the SIR can inform the extent of clogging, but at present there is a dearth of guidance on how to incorporate SIR data into dynamic PP maintenance plans. In the first chapter of my dissertation, I conducted a review of existing guidance documents to describe the current state of practice for SIR measurement methodologies, PP maintenance guidance, and the use of SIR outcomes to inform PP maintenance plans. Standard and alternative SIR assessment methodologies were described and compared, and modifications and recommendations were provided to clarify testing methods, streamline testing efficiency, and reduce the burden of SIR monitoring. Suggested modifications included requiring regular SIR testing, shortening the duration of SIR tests, and allowing for usage of mo (open full item for complete abstract)
Committee: Ryan Winston (Advisor); Jay Dorsey (Committee Member); Jon Witter (Committee Member); Jiyoung Lee (Committee Member); Jay Martin (Committee Member)
Subjects: Ecology; Environmental Engineering; Environmental Management; Hydrology; Microbiology; Water Resource Management