Advanced methods and techniques for water quality assessment (ECOSENZ)

Abstract

In 2019, two phases of the project were carried out. In one of the phases, the aim was to identify the anthropogenic factors and characterize the wastewater discharged into the Bega and Timis rivers. To highlight the impact generated by the potential sources of pollution on the watercourses, the quality of the two bodies of water upstream and downstream of each potential source of pollution was evaluated. The evaluation of their quality was carried out in accordance with the Order MMGA no.161 / 2006 - regarding the classification of the quality of surface waters in order to establish the ecological status of the water bodies. In order to reduce phosphorus from polluted waters, experimental phytoremediation studies were performed using the Lemna minor L. aquatic plant. The second phase of the project aimed to modify the conventional surfaces of the commercial electrodes with nanomaterials (carbongraphene, Au, Pt, Ag, Cu nanoparticles, and materials with perovskite structure) to improve the electrode performance - sensitivity, limit of detection, limit of quantification. The modification of the commercial electrodes was performed electrochemically by applying the technique of chronoamperometry with graphene and nanoparticles of metals and chemically with materials that have a perovskite structure. The electrodes obtained were characterized by determining the specific surface and tested in the detection of pharmaceutical products of the following classes: antibiotics (tetracycline), cytostatic (docetaxel, paclitaxel and capecitabine) and anti-inflammatory (diclofenac).