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Heterogeneous Fenton type processes for the degradation of organic dye pollutant in water – the application of zeolite assisted AOPs


Aleksić, Maja; Kušić, Hrvoje; Koprivanac, Natalija; Leszczynska, Danuta; Lončarić Božić, Ana
Heterogeneous Fenton type processes for the degradation of organic dye pollutant in water – the application of zeolite assisted AOPs // Desalination, 257 (2010), 1-3; 22-29 doi:10.1016/j.desal.2010.03.016 (međunarodna recenzija, članak, znanstveni)


Naslov
Heterogeneous Fenton type processes for the degradation of organic dye pollutant in water – the application of zeolite assisted AOPs

Autori
Aleksić, Maja ; Kušić, Hrvoje ; Koprivanac, Natalija ; Leszczynska, Danuta ; Lončarić Božić, Ana

Izvornik
Desalination (0011-9164) 257 (2010), 1-3; 22-29

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

Ključne riječi
Heterogeneous catalysis; Fenton process; model wastewater; zeolite; FeZSM5; UV irradiation

Sažetak
Heterogeneous Fenton type processes using Fe-exchanged zeolite of ZSM5 type were investigated for the degradation of model organic pollutant, reactive azo dye C.I. Reactive Blue 137, in water. Research work was directed to compare process efficiency and to establish their advantages over corresponding homogenous Fenton type processes. The influence of UV irradiation on both heterogeneous and homogeneous processes was also studied. On the basis of decolorization and mineralization degree of dye aqueous solution the overall process efficiency was estimated. Homogeneous and heterogeneous Fenton processes yielded similar decolorization and mineralization, but the concentration of Fe ions in the bulk after the treatment was significantly lower in the latter case. Moreover, the usage of heterogeneous catalyst allows process to be operated at milder pH conditions minimizing the addition of counter ions (both anions and cations) for strong pH conditioning like in homogeneous Fenton processes. Besides that, another advantage of heterogeneous over homogeneous process is the avoidance of unnecessary additional loading of wastewater by counter ions that originated from iron salts. UV irradiation positively affected both decolorization and mineralization degree in all applied homogeneous and heterogeneous Fenton type processes.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
125-1253092-1981 - Obrada otpadnih voda naprednim oksidacijskim tehnologijama (Sanja Papić, )

Ustanove
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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