Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.watres.2021.117349
Lizenz creative commons licence
Titel (primär) Removal of micropollutants and biological effects by conventional and intensified constructed wetlands treating municipal wastewater
Autor Sossalla, N.A.; Nivala, J.; Reemtsma, T.; Schlichting, R.; König, M.; Forquet, N.; van Afferden, M.; Müller, R.A.; Escher, B.I.
Quelle Water Research
Erscheinungsjahr 2021
Department ANA; ZELLTOX; UBZ
Band/Volume 201
Seite von art. 117349
Sprache englisch
Topic T7 Bioeconomy
T9 Healthy Planet
Keywords Effect-based method; Effect-based trigger values; Emerging organic contaminant; In vitro bioassay Nature-based solution Treatment wetland
Abstract Seven treatment wetlands and a municipal wastewater treatment plant (WWTP) were weekly monitored over the course of one year for removal of conventional wastewater parameters, selected micropollutants (caffeine, ibuprofen, naproxen, benzotriazole, diclofenac, acesulfame, and carbamazepine) and biological effects. The treatment wetland designs investigated include a horizontal subsurface flow (HF) wetland and a variety of wetlands with intensification (aeration, two-stages, or reciprocating flow). Complementary to the common approach of analyzing individual chemicals, in vitro bioassays can detect the toxicity of a mixture of known and unknown components given in a water sample. A panel of five in vitro cell-based reporter gene bioassays was selected to cover environmentally relevant endpoints (AhR: indicative of activation of the aryl hydrocarbon receptor; PPARγ: binding to the peroxisome proliferator-activated receptor gamma; ERα: activation of the estrogen receptor alpha; GR: activation of the glucocorticoid receptor; oxidative stress response). While carbamazepine was persistent in the intensified treatment wetlands, mean monthly mass removal of up to 51% was achieved in the HF wetland. The two-stage wetland system showed highest removal efficacy for all biological effects (91% to >99%). The removal efficacy for biological effects ranged from 56% to 77% for the HF wetland and 60% to 99% for the WWTP. Bioanalytical equivalent concentrations (BEQs) for AhR, PPARγ, and oxidative stress response were often below the recommended effect-based trigger (EBT) values for surface water, indicating the great benefit for using nature-based solutions for water treatment. Intensified treatment wetlands remove both individual micropollutants and mixture effects more efficiently than conventional (non-aerated) HF wetlands, and in some cases, the WWTP.
dauerhafte UFZ-Verlinkung
Sossalla, N.A., Nivala, J., Reemtsma, T., Schlichting, R., König, M., Forquet, N., van Afferden, M., Müller, R.A., Escher, B.I. (2021):
Removal of micropollutants and biological effects by conventional and intensified constructed wetlands treating municipal wastewater
Water Res. 201 , art. 117349 10.1016/j.watres.2021.117349