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Removal of chloridazon pesticide from waters by Fenton and photo-Fenton processes      
Yazarlar
Arş. Gör. Hatice Bike ULU Arş. Gör. Hatice Bike ULU
Kastamonu Üniversitesi, Türkiye
Doç. Dr. Nejdet DEĞERMENCİ Doç. Dr. Nejdet DEĞERMENCİ
Kastamonu Üniversitesi, Türkiye
Filiz Bengü Dilek
Orta Doğu Teknik Üniversitesi, Türkiye
Özet
Chloridazon (CLZ), also named as Pyrazon and classified as organochlorine pesticides, is widely used during sugar beets cultivation. CLZ being a pesticide with high solubility in water is likely to end up in surface and groundwater bodies because of its high mobility in soil. Due to its toxic properties, it may cause serious problems in human health and ecological cycle. In the present study, the removal of CLZ pesticide by Fenton and photo-Fenton processes was investi-gated. The effects of parameters such as H2 O2, Fe(II), initial CLZ concentration, pH, and temperature were studied. It was observed that CLZ completely disappeared within 1 h and 20 min by the Fenton and photo-Fenton process, respectively, under optimal conditions. The optimal conditions for each processes were attained as 7.5 mg/L Fe(II), 50 mg/L H2 O2, 40 mg/L initial CLZ, pH 3 and 20°C for Fenton process, and 5 mg/L Fe2+, 50 mg/L H2 O2, 60 mg/L initial CLZ, pH 3 and 20°C for photo-Fenton process. The reaction kinetics of CLZ followed Behnajady–Modirdhahla–Ghanbery kinetic model. Desphenyl CLZ, pyridazine-3,4,5-trione, oxaluric acid, and 5-hydroxyhydantion were identified as CLZ degradation by-products. Accordingly, the degradation pathway was proposed.
Anahtar Kelimeler
By-products | Chloridazon removal | Fenton | Kinetics | Photo-Fenton
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı DESALINATION AND WATER TREATMENT
Dergi ISSN 1944-3994
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 08-2020
Cilt No 194
Sayı 1
Sayfalar 429 / 438
Doi Numarası 10.5004/dwt.2020.25905
Makale Linki http://dx.doi.org/10.5004/dwt.2020.25905