Diclofenac removal by zeolite-assisted AOPs (CROSBI ID 623938)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Merzel, Fran ; Juretić, Daria ; Novak, Mirjana ; Kušić, Hrvoje ; Ukić, , Šime ; Bolanča, Tomislav ; Lavrenčič Štangar, Urška ; Loncaric Bozic, Ana
engleski
Diclofenac removal by zeolite-assisted AOPs
The list of priority substances in the field of water policy, i.e. the chemicals identified among those presenting a significant risk to or via the aquatic environment, is periodically amended ; current Directive 2013/39/EC included pharmaceutical Diclofenac (DCF) in the “watch” list. DCF is a common non-steroidal anti- inflammatory drug and one of the most widely available drugs in the world that showed adverse effects in different organisms even at very low concentrations. Due to the fact that conventional wastewater treatment systems do not efficiently remove DCF, advanced treatment technologies capable of its complete removal or destruction of its biological activity, need to be evaluated and eventually employed. The goal of the study was to evaluate capability of zeolite-assisted advanced oxidation processes (AOPs) for the removal of DCF. For that purpose, heterogeneous Fenton process employing Fe- exchanged ZSM5 zeolite (Fe-ZSM5/H2O2) is applied. The applied zeolite-based catalyst is characterized prior and after the treatment in order to scan possible changes in its composition and morphology using ICP/MS, SEM and FTIR. The influence of key operating parameters of applied Fe-ZSM5/H2O2 process (operating pH, oxidant and catalyst concentrations) was investigated using the combination of Box-Behnken experimental design with response surface methodology (RSM). Besides, the effectiveness of Fe-ZSM5/H2O2 was compared with its analogous process, Fe3+/NH4ZSM5/H2O2, in order to investigated removal/degradation mechanisms occurring within the applied system. The operating conditions yielding the highest mineralization degree, and highest stability regarding Fe leaching were determined. The kinetics of Fe-ZSM5/H2O2 process for removal of DCF at determined optimal conditions and its reuse capability were studied as well.
water treatment; advaced oxidation process; diclofenac; zeolite
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Podaci o prilogu
118-118.
2014.
objavljeno
Podaci o matičnoj publikaciji
Abstracts of The 20th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
H
London : Ontario: Redox Technologies
Podaci o skupu
The 20th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
poster
17.11.2014-20.11.2014
San Diego (CA), Sjedinjene Američke Države