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Organic xenobiotics removal in constructed wetlands, with emphasis on the impor...
Dordio, Ana V.; Carvalho, Alfredo Jorge PalaceConstructed wetlands (CWs) are increasingly popular as an efficient and economical alternative to conventional wastewater treatment processes for removal, among other pollutants, of organic xenobiotics. In CWs, pollutants are removed through the concerted action of their components, whose contribution can be maximized by careful selection of those components. Specifically for non-biodegradable organic pollutant...
Constructed wetlands with light expanded clay aggregates for agricultural waste...
Dordio, Ana V.; Carvalho, Alfredo Jorge PalaceConstructed wetlands (CWs) are receiving a renewed attention as a viable phytotechnology for treating agricultural wastewaters and for the removal of more specific pollutants, in particular recalcitrant ones. In this work, the performance of CW mesocosms using light expanded clay aggregates (LECA) as the bed's substrate and planted with Phragmites australis was investigated for treatment of olive mill wastewate...
Study on the use of Typha spp. for the phytotreatment of water contaminated wit...
Dordio, Ana; Ferro, Raquel; Teixeira, Dora; Palace, Alfredo J.; Pinto, Ana P.; Dias, Cristina M.B.Several studies on phytotoxic effects caused by organic xenobiotics and their removal from water by macrophytes have already been performed to evaluate the usefulness of these plants for phytoremediation technologies. In this context, a study was conducted to assess Typha spp.’s ability to withstand and remove, from water, the non-steroidal anti-inflammatory drug ibuprofen. For an initial ibuprofen concentratio...
Pilot-scale study on the removal of pharmaceuticals by LECA based SSF-construct...
Dordio, Ana V.; Pinto, Ana P.; Palace Carvalho, A. J.; Costa, CristinaIn recent years, the occurrence and fate of pharmaceutically active compounds (PhACs) in the aquatic environment has been recognized as one of the emerging issues in environmental chemistry. Some compounds are just resistant to degradation in the sewage treatment plants (STPs) while others, although suffering partial degradation, still end up in receiving water bodies due to the large inputs received in STPs [1...
"Wetlands: Water Living Filters?",
Dordio, Ana; Palace, A. J.; Pinto, Ana PaulaHuman societies have indirectly used natural wetlands as wastewater discharge sites for many centuries. Observations of the wastewater depuration capacity of natural wetlands have led to a greater understanding of the potential of these ecosystems for pollutant assimilation and have stimulated the development of artificial wetlands systems for treatment of wastewaters from a variety of sources. Constructed wetl...
Sorption behavior of granular matrices for application in pharmaceutical remova...
Dordio, Ana V.; Estêvão Candeias, A. J.; Pinto, Ana P.; Costa, Cristina; Palace Carvalho, A. J.In recent years, the occurrence and fate of pharmaceutically active compounds (PhACs) in the aquatic environment has been recognized as one of the emerging issues in environmental chemistry. Clofibric acid, ibuprofen and carbamazepine are some of the most frequently found PhACs in environmental monitoring studies. Some xenobiotics have already been successfully removed from contaminated waters using constructed...
Removal of pharmaceuticals in constructed wetlands using Typha and LECA. A pilo...
Dordio, Ana V.; Palace Carvalho, A. J.; Estêvão Candeias, A. J.; Pinto, Ana P.; Costa, CristinaAn ever-increasing number of xenobiotic compounds are getting detected in environmental samples worldwide. Serious concern about the contamination of water resources and drinking water supplies has aroused from the prevalence of pharmaceutical residues in the aquatic ecosystems. Some pharmaceuticals such as ibuprofen, carbamazepine and clofibric acid are frequently detected in waters [1]. These compounds are ge...
Using clay materials to remove pharmaceuticals from waters
Dordio, Ana V.; Palace Carvalho, A. J.; Estêvão Candeias, A. J.; Pinto, Ana P.; Costa, CristinaPharmaceutical active compounds (PhACs) have an important role in the treatment and prevention of disease in both human and animals. Ingested drugs are only partially absorbed by the organisms and studies have shown that the excreted compounds are only partially removed in the sewage treatment plants (STPs) [1]. Contaminated effluents are being released from the STPs and trace amounts of PhACs have been detecte...
Removing pharmaceutical residues from contaminated wastewaters using expanded c...
Dordio, Ana V.; Pinto, Ana P.; Estêvão Candeias, A. J.; Palace Carvalho, A. J.; Costa, CristinaPharmaceutical compounds (PhCs) are ingested in large quantities by humans in treatment and prevention of disease, but they are only partially absorbed by the organisms being excreted together with their metabolites. The sewage treatment plants (STP) are only able to partially remove some of these compounds and, despite the low concentrations present in the wastewaters (ng-μg/L), these xenobiotics can still pos...
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