Removal of cod from oil recovery industry wastewater by the advanced oxidation processes (AOP) based on H2O2
Yükleniyor...
Dosyalar
Tarih
2008
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Global Network Environmental Science & Technology
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The combinations of H2O2/Fe, UV/H2O2/Fe and UV/H2O2 process were investigated on treatment of oil recovery industry wastewater. Treatment of oil recovery industry wastewater, a typical high pollution strength industrial wastewater (chemical oxygen deman (COD): 21000 mg l(-1), biological oxygen demand (BOD): 8000 mg l(-1), oil and grease:1140 mg l(-1), total dissolved solids (TDS): 37000 mg l(-1), total suspended solids: 2580 mg l(-1)), was carried out by batch oxidation processes. The optimal mass ratio for H2O2/Fe+2 yielding the highest COD removal-was found to be 8.658 corresponding to 200.52 g 1(-1) H2O2 and 23.16 g l(-1) Fe+2 concentrations for 60 minutes reaction time. Fenton process gave a maximum COD reduction of 86% (from 21000 to 2980 mg l(-1)) and the combination of UV/H2O2 gave a COD reduction of 39% (from 21000 to 12730). The percentage of removal, after the total reaction time (3.5h), H2O2: 8.4 g l(-1) and Fe+2 : 0.05g l(-1), in the photo Fenton process, corresponded to 81 % of the total initial COD (4200 mg l(-1)). The oxidative ability of the UV/Fe+2 /H2O2 process (81 %) was greater than that of the UV/H2O2 process (55%) for 80% diluted wastewater. COD removal efficiency for UV/H(2)O2 process (COD/H2O2=1/2 (w/w)) was 90%, 55%, and 39 when initial COD was 1050, 4200, and 21000 mg l(-1), respectively, whereas COD removal was 943, 2320, and 8270 mg l(-1), respectively.
Açıklama
Anahtar Kelimeler
oil recovery industry, fenton, photo-fenton, UV plus hydrogen peroxide, Fentons Reagent, Photo, Biodegradability, Wastewaters, Degradation
Kaynak
Global Nest Journal
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
10
Sayı
1
