Nacar, TuğbaUçar, DenizAyas, Zehra Sapci2026-02-082026-02-0820222147-31292147-3188https://doi.org/10.17798/bitlisfen.1108112https://hdl.handle.net/20.500.12885/3825Suspended substances in car washes can often be easily removed by physicochemical processes. The main problem is to remove dissolved substances such as detergents from the water. In this study, a biodegradable substance Sodium Lauryl Sulfate (SLS) was removed from the car wash wastewater by the use of Phragmites australis in the subsurface constructed wetland. For this study, 4 plexiglass reactors having an effective volume of 10.8 L with the dimensions of 15cm×45cm×20 cm were used. The experiments were conducted with vegetation which was called SCW and without vegetation which was named control group (CG), as two groups. A serial connection of two reactors was performed for each group. Up to 90% detergent removal was observed with the vegetation in the SCW with a loading rate of 75 L/(m2.d) The effluents quality showed that the treated water can be reused carwash or irrigation for landscaping.eninfo:eu-repo/semantics/openAccessEngineeringMühendislikArticle10.17798/bitlisfen.11081121138208271129352