Naslov
Removal of glucocorticosteroids and anesthetics from water with RO/NF membranes

Autori
Dolar, Davor ; Košutić, Krešimir ; Ašperger, Danijela ; Babić, Sandra

Izvornik
Chemical and biochemical engineering quarterly (0352-9568) 27 (2013), 1; 1-6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Reverse osmosis ; Nanofiltration ; Rejection ; Glucocorticosteroids ; Anesthetics
(reverse osmosis ; Nanofiltration ; Rejection ; Glucocorticosteroids ; Anesthetics)

Sažetak
This work addresses the removal of glucocorticosteroids (hydrocortisone, HYDRO ; and dexamethasone, DEXA) and anesthetics (procaine, PROCA ; and lidocaine, LIDO), considered as the emerging contaminants in water, by commercially available reverse osmosis/nanofiltration (RO/NF) membranes. The RO/NF experiments were of the long- run type in order to accomplish steady-state and to get accurate rejection of selected compounds. The removal of the examined compounds by the RO (XLE, SWC, LFC) and the tight NF (NF90) membranes was higher than 98 %. Relating the solute rejections to membranes' properties has shown that the dominant rejection mechanism of the examined pharmaceuticals by all the membranes was the size exclusion effect. Rejection factors for hydrophilic HYDRO and DEXA compounds, obtained in condition of long-term operation, confirm that they do not adsorb to the active layer of selected membranes. LIDO and PROCA, slightly hydrophobic compounds, had lower rejections after 24 h treatment compared to initial values, and probable they were adsorbed on polymeric matrix.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

Napomena
Bilateral project HR-SLO: Determination of toxicity and physico‐chemical properties of pharmaceuticals. Rad je jedan od 15 odabranih radova prezentiranih na skupu 3rd International Symposium on Environmental Management (SEM) : Towards Sustainable Technologies, održanom od 26.-28.10.2011.g., Zagreb, Hrvatska.

POVEZANOST RADA