Fluorescence approach for investigating binding properties between metals and soluble microbial products from a biological wastewater treatment plant

- Interaction between metals and SMP is investigated by EEM-SWATLD analysis successfully.
- SWATLD can discriminate EEM spectra of SMP into different meaningful components.
- Metal mobilization and dispersion are governed by SMP as relatively strong ligands.
- Solution conditions influence the interactions between metals and SMP significantly.