Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Removal of Antibiotics and Antibiotic Resistance Genes from Urban Rivers Using Artificial Ecosystems
Ist Teil von
Huanjing kexue, 2021-02, Vol.42 (2), p.850
Ort / Verlag
China
Erscheinungsjahr
2021
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Four antibiotics[azithromycin (AZM), sulfamethoxazole (SMZ), ciprofloxacin (CIP), and tetracycline (TCY)], and the antibiotic resistance genes (ARGs)[sulfonamides (
and
), tetracyclines (
and
), quinolones (
and
), macrolides (
), and 16S rDNA] were selected as target compounds. Artificial ecosystems were constructed with combinations of two emergent plants and
(
+
, algae+
, algae+
, and algae+
+
) in an indoor-simulated river system. Throughout the artificial ecosystems, changes in antibiotic concentrations and other pollution indicators (i.e., COD, NH
-N, TP, and TN) were monitored in different media (the aqueous phase, sediment phase, and in plants), and the distribution and removal of ARGs in aqueous and sediment phases were explored. Removal of the target compounds was calculated based on mass balance, and the correlation between ARG abundance and environmental factors in the aqueous and sediment phases was analyzed. The results showed that the constructed artificial ecosystem achieved removal rates of