Abstract
Mobilization of trace elements holds significant implications for water quality and ecosystem health within a RAS environment. Secondary to the production of H2S, oxidation-reduction reactions may stimulate this mobilization of trace elements within the RAS sludge. This aspect of trace element dynamics remains underexplored, particularly in the context of RAS environments. In this study, we investigate the trends in trace element mobilization within the RAS aquatic environment. To achieve this, we performed sequential extractions on sludge samples and subjected them to further analysis using (ICPMS) to determine the composition and speciation of the elements. Our findings suggest that trace elements in RAS have the potential to undergo mobilization, with some elements showing an increase in sludge concentration while others exhibit a decrease. This research sheds light on an important aspect of RAS water quality management.