The activity of heterotrophic bacteria on the DOM - metal complex affects copper speciation and bioavailability in aquatic ecosystem
DOI:
https://doi.org/10.14210/bjast.v19n1.p47-53Abstract
Metals are mainly released into the environment by industrial processes where dissolved organic materials (DOM) are present.  This investigation focused on modification of copper species in the presence of aquatic heterotrophic bacteria assemblage and natural dissolved organic materials. Copper dynamics during bacteria growth was evaluated through the determination of dissolved and particulate copper. The results showed a reduction of organic carbon, an increase of free Cu2+ ions followed by adsorbed and internalized copper. This study demonstrated a relevant environmental consequence of heterotrophic bacteria activity related to copper speciation in aquatic ecosystem suggesting that as a result of heterotrophic bacteria activity upon DOM, more toxic copper species were released into the environment.
Downloads
Published
Issue
Section
License
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
