Subhani Samarakoon Jayasekara Mudiyans

Dr. Subhani Samarakoon Jayasekara Mudiyans is a Research Fellow at the School of Civil and Environmental Engineering, University of Technology Sydney. Her work focuses on geoenvironmental engineering, particularly the biogeochemical clogging mechanisms in permeable reactive barriers (PRBs) treating acidic groundwater in pyritic terrains.

• PhD, Civil (Geotechnical) Engineering, University of Wollongong (2020)
• BSc (Hons), Civil and Environmental Engineering, University of Ruhuna, Sri Lanka (2015)

Her research spans experimental and computational modeling of

• Physical and biochemical clogging in granular filters
• Development of PRB longevity prediction models
• Use of biopolymers like Xanthan Gum for soil stabilization
• Groundwater flow dynamics in acid sulfate soils

Recent publications highlight advancements in

• Clogging mechanism reviews (Environmental Geotechnics, 2025)
• Machine learning applications for pH prediction (Computers and Geotechnics, 2023)
• Biopolymer-enhanced soil stability under cyclic loading (Transportation Geotechnics, 2023)
• Comprehensive field monitoring of PRBs (Engineering Geology, 2022)

Scientific recognition includes

• ISSMGE Bright Spark Lecture Award (2022)
• Examiners' Commendation for PhD thesis (2020)
• Coffey-UOW award for postgraduate performance (2019)
• Multiple best paper awards (2015-2022)

Current collaborations emphasize interdisciplinary approaches to acid sulfate soil management, integrating numerical modeling with field data. Her work bridges laboratory experimentation, computational simulations, and real-world infrastructure applications to enhance environmental sustainability.