Emerging organic contaminant removal in a full-scale hybrid constructed wetland system for wastewater treatment and reuse

Abstract

22A full-scale hybrid constructed wetland (CW) system based on three-stages of

Removal of antibiotics and antibiotic resistance genes from domestic sewage by constructed wetlands: Effect of flow configuration and plant species

“…The present study shows that the microbial activities in the mesocosm-scale CWs can be positively correlated to the removal efficiency of the chemical pollutants (Table 5). Some previous studies also proved that microbes may play a more important role in pollutants removal in large scale CWs (Chen et al, 2015;Ávila et al, 2015). This further suggests that biodegradation plays a more important role when compared to substrate adsorption and plant uptake in terms of mass removal.…”

Occurrence, removal and environmental risk assessment of pharmaceuticals and personal care products in rural wastewater treatment wetlands

“…The treatment efficiencies of ibuprofen in the monitored HSFF-CWs varied between 74% and 99%, higher than the treatment efficiencies re- VSSF-CW (55-99%) (Avila et al, 2015;Matamoros et al, 2007Matamoros et al, , 2009). Aerobic biodegradation is widely considered to be the main mechanism of ibuprofen removal in CWs (Hijosa-Valsero et al, 2010a;Matamoros and Bayona, 2006).…”

Ibuprofen and iohexol removal in saturated constructed wetland mesocosms

“…Organic pollutants are eliminated by CWs through synergistic processes, including volatilization, hydrolysis, photodegradation, substrate sorption, plant uptake and biodegradation (Imfeld et al, 2009;Ávila et al, 2015). In the present study, volatilization and hydrolysis as pathway for IBU and IOH removal from the mesocosms were assumed not to occur due to the experimental setup and the physicochemical characteristics of the compounds at the pH studied.…”