TY - JOUR
T1 - Photocatalytic ozonation for degradation of 2-sec-butyl-4,6-dinitrophenol (DNBP) using titanium dioxide
T2 - Effect of operational parameters and wastewater treatment
AU - Mousanejad, T.
AU - Khosravi, M.
AU - Tabatabaii, S. M.
AU - Khataee, A. R.
AU - Zare, K.
PY - 2014/2
Y1 - 2014/2
N2 - The results of degradation efficiency of 2-sec-butyl-4,6-dinitrophenol (DNBP) in a batch system by various advanced oxidation processes revealed the order of TiO2/UV/O3 > TiO2/O3 > UV/O3 > O3 > UV/TiO2. All processes followed pseudo-first order kinetics. The influence of operational parameters such as initial pH, initial concentration of DNBP, ozone and catalyst dosage on the TiO2/UV/O3 process, which was the most significant investigated method. The ozone dosage was found to have the noticeable impact on the process; however, initial pH and TiO2 dosage were less effective. The mineralization of 40 mg/L of DNBP and petrochemical wastewater under the obtained optimal conditions was monitored by total organic carbon and chemical oxygen demand, respectively. The results demonstrated that the TiO 2/UV/O3 process was a very effective method for degradation and mineralization of DNBP in aqueous solutions and industrial wastewater. The degradation intermediates were identified by GC-MS.
AB - The results of degradation efficiency of 2-sec-butyl-4,6-dinitrophenol (DNBP) in a batch system by various advanced oxidation processes revealed the order of TiO2/UV/O3 > TiO2/O3 > UV/O3 > O3 > UV/TiO2. All processes followed pseudo-first order kinetics. The influence of operational parameters such as initial pH, initial concentration of DNBP, ozone and catalyst dosage on the TiO2/UV/O3 process, which was the most significant investigated method. The ozone dosage was found to have the noticeable impact on the process; however, initial pH and TiO2 dosage were less effective. The mineralization of 40 mg/L of DNBP and petrochemical wastewater under the obtained optimal conditions was monitored by total organic carbon and chemical oxygen demand, respectively. The results demonstrated that the TiO 2/UV/O3 process was a very effective method for degradation and mineralization of DNBP in aqueous solutions and industrial wastewater. The degradation intermediates were identified by GC-MS.
KW - 2-Sec-butyl-4,6-dinitrophenol
KW - Advanced oxidation processes
KW - Photocatalytic ozonation
KW - Photodegradation
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=84895057002&partnerID=8YFLogxK
U2 - 10.1007/s11164-012-0996-9
DO - 10.1007/s11164-012-0996-9
M3 - Article
AN - SCOPUS:84895057002
SN - 0922-6168
VL - 40
SP - 711
EP - 722
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
IS - 2
ER -
