The presence of marine pollutants such as marine plastics has increased significantly over the last decades and poses a major environmental problem, in both the coastal and offshore area. The fundamental fluid mechanics processes associated with marine transport are often not resolved in large-scale models, and the processes associated with wave-induced currents (e.g., Stokes drift) in rotating, density-stratified fluids with a free surface remain unclear and untested. For this purpose, the Delta Transport Processes Laboratory (DTPLab) is being developed at TUDelft Hydraulic Engineering Laboratory. This laboratory pioneers the combined experimental study of surface waves, density stratification and Coriolis forces in a single laboratory. It will feature a 4.40 m diameter rotating table, a 5m and a 13m long flume, a surface and an internal wave generator. The laboratory will be first used to study the impact of the Coriolis force on the Stokes drift.