Skoči na glavni sadržaj

Chemical and Biochemical Engineering Quarterly, Vol. 32 No. 2, 2018.

Izvorni znanstveni članak

https://doi.org/10.15255/CABEQ.2017.1268

COD Removal from High Salinity Petrochemical Wastewater Using Photo-assisted Peroxi-coagulation

S. Jorfi ; a)Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; b)Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
S. Alavi ; Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
N. Jaafarzadeh ; a)Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; b)Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
F. Ghanbari ; Department of Environmental Health Engineering, Abadan School of Medical Sciences, Abadan, Iran
M. Ahmadi ; a)Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; b)Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Puni tekst: engleski pdf 1.545 Kb

str. 229-238

preuzimanja: 679

citiraj

Sažetak

Photo-assisted peroxi-coagulation (PPC) was investigated for treatment of high TDS (total dissolved solids) wastewater. The most important characteristics of the studied wastewater were high TDS of around 16428 mg L–1 and BOD5/COD ratio of 0.07. Effective operating parameters, including initial pH values of 3–8, reaction time of 60–240
min, electrode distance values of 2–6 cm, and voltage values of 0.5–3 V were investigated in batch mode experiments. Optimum conditions were obtained at pH = 3, voltage = 1.5 V, electrode distance = 2 cm, and reaction time = 420 min, corresponding to 89.44 % COD removal, which meets the Iran environmental discharge legislation (COD = 100 mg L–1). Kinetic analysis showed that pseudo first-order kinetic model was best fitted (R2 = 0.97). GC mass chromatograms before and after treatment showed degradation of complex compounds to more simple constituents.







This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

photo-assisted peroxi-coagulation; Fenton oxidation; high salinity wastewater; petrochemical industries; degradation

Hrčak ID:

203185

URI

https://hrcak.srce.hr/203185

Datum izdavanja:

5.7.2018.

Posjeta: 1.496 *