Light microscopy observation of emergent macrophytes in floating treatment wetlands combined with microbial fuel cells (FTW-MFC): heavy metals loaded treatments

This dataset presents the light microscope images of emergent plants (Phragmites australis and Iris pseudacorus) used in floating treatment wetlands combined with microbial fuel cells (FTW-MFC) systems for wastewater treatment and bioenergy generation. Wastewaters were supplemented with heavy metals: Cu, Cd, and Pb in different combinations. Plants were exposed to heavy metals for two weeks before observations were taken. Samples were examined using an optical microscope (Delta Optical Genetic Pro with 3MP camera; Delta Optical, Poland) at lens magnifications of 4x and 10x, and ocular magnification of 10x. DLT-Cam Viewer software (DeltaOptical, Poland) was used to perform measurements. Funding: Data were produced under the UMO-2021/43/B/NZ9/00787 financed by the National Science Centre Poland.