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Solar degradation of diclofenac using Eosin-Y-activated TiO2: cost estimation, process optimization and parameter interaction study.
Environ Technol. 2017 Apr; 38(8):933-944.ET

Abstract

Diclofenac (DCF), a widely used non-steroidal anti-inflammatory drug, is a commonly detected substance that readily accumulates in tissues of aquatic fish and poses a threat to wildlife and freshwater quality. Advanced Oxidation Processes have been employed as an alternative due to the inadequacy of conventional treatment methods of trace contaminants. This study utilized an innovative method of solar-activation of TiO2 using Eosin-Y dye for the degradation of DCF. Furthermore, the study incorporated a central composite design (CCD) to optimize the dye concentration and estimated the cost for the present process. Optimized parameters for light intensity (750 mW/cm2), Eosin-Y dye concentration (2 mg/L), TiO2 loading (37.5 mg/cm2) and DCF concentration (25 mg/L) were determined through a CCD. The optimized parameters convey a DCF degradation rate of 40% and 49% for 2 ppm (low range) and 4 ppm (high range) dye concentrations, respectively, for a 5-minute reaction time. Cost estimation for the materials used was for the current process was also performed. It was determined that the additional cost of using 4 ppm instead of 2 ppm to achieve only 10% more DCF degradation is not warranted and would require additional treatment to remove subsequently formed halogenated compounds.

Authors+Show Affiliations

a Department of Chemical and Biochemical Engineering , University of Western Ontario , London , Canada.a Department of Chemical and Biochemical Engineering , University of Western Ontario , London , Canada.a Department of Chemical and Biochemical Engineering , University of Western Ontario , London , Canada.a Department of Chemical and Biochemical Engineering , University of Western Ontario , London , Canada.a Department of Chemical and Biochemical Engineering , University of Western Ontario , London , Canada.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27470696

Citation

Hashim, Noshin, et al. "Solar Degradation of Diclofenac Using Eosin-Y-activated TiO2: Cost Estimation, Process Optimization and Parameter Interaction Study." Environmental Technology, vol. 38, no. 8, 2017, pp. 933-944.
Hashim N, Thakur S, Patang M, et al. Solar degradation of diclofenac using Eosin-Y-activated TiO2: cost estimation, process optimization and parameter interaction study. Environ Technol. 2017;38(8):933-944.
Hashim, N., Thakur, S., Patang, M., Crapulli, F., & Ray, A. K. (2017). Solar degradation of diclofenac using Eosin-Y-activated TiO2: cost estimation, process optimization and parameter interaction study. Environmental Technology, 38(8), 933-944. https://doi.org/10.1080/09593330.2016.1214625
Hashim N, et al. Solar Degradation of Diclofenac Using Eosin-Y-activated TiO2: Cost Estimation, Process Optimization and Parameter Interaction Study. Environ Technol. 2017;38(8):933-944. PubMed PMID: 27470696.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Solar degradation of diclofenac using Eosin-Y-activated TiO2: cost estimation, process optimization and parameter interaction study. AU - Hashim,Noshin, AU - Thakur,Shaila, AU - Patang,Mouska, AU - Crapulli,Ferdinando, AU - Ray,Ajay K, Y1 - 2016/07/28/ PY - 2016/7/30/pubmed PY - 2017/3/30/medline PY - 2016/7/30/entrez KW - AOP KW - Eosin-Y KW - Solar visible photocatalysis KW - TiO2 KW - diclofenac KW - dye sensitization KW - water treatment SP - 933 EP - 944 JF - Environmental technology JO - Environ Technol VL - 38 IS - 8 N2 - Diclofenac (DCF), a widely used non-steroidal anti-inflammatory drug, is a commonly detected substance that readily accumulates in tissues of aquatic fish and poses a threat to wildlife and freshwater quality. Advanced Oxidation Processes have been employed as an alternative due to the inadequacy of conventional treatment methods of trace contaminants. This study utilized an innovative method of solar-activation of TiO2 using Eosin-Y dye for the degradation of DCF. Furthermore, the study incorporated a central composite design (CCD) to optimize the dye concentration and estimated the cost for the present process. Optimized parameters for light intensity (750 mW/cm2), Eosin-Y dye concentration (2 mg/L), TiO2 loading (37.5 mg/cm2) and DCF concentration (25 mg/L) were determined through a CCD. The optimized parameters convey a DCF degradation rate of 40% and 49% for 2 ppm (low range) and 4 ppm (high range) dye concentrations, respectively, for a 5-minute reaction time. Cost estimation for the materials used was for the current process was also performed. It was determined that the additional cost of using 4 ppm instead of 2 ppm to achieve only 10% more DCF degradation is not warranted and would require additional treatment to remove subsequently formed halogenated compounds. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/27470696/Solar_degradation_of_diclofenac_using_Eosin_Y_activated_TiO2:_cost_estimation_process_optimization_and_parameter_interaction_study_ L2 - http://www.tandfonline.com/doi/full/10.1080/09593330.2016.1214625 DB - PRIME DP - Unbound Medicine ER -