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Degradation and mineralization of Bisphenol A (BPA) in aqueous solution using advanced oxidation processes: UV/H2O2 and UV/S2O8(2-) oxidation systems.
J Environ Manage. 2015 Jun 01; 156:266-75.JE

Abstract

This work reports on the removal and mineralization of an endocrine disrupting chemical, Bisphenol A (BPA) at a concentration of 0.22 mM in aqueous solution using inorganic oxidants (hydrogen peroxide, H2O2 and sodium persulfate, Na2S2O8;S2O8(2-)) under UV irradiation at a wavelength of 254 nm and 40 W power (Io = 1.26 × 10(-6) E s(-1)) at its natural pH and a temperature of 29 ± 3 °C. With an optimum persulfate concentration of 1.26 mM, the UV/S2O8(2-) process resulted in ∼95% BPA removal after 240 min of irradiation. The optimum BPA removal was found to be ∼85% with a H2O2 concentration of 11.76 mM. At higher concentrations, either of the oxidants showed an adverse effect because of the quenching of the hydroxyl or sulfate radicals in the BPA solution. The sulfate-based oxidation process could be used over a wider initial pH range of 3-12, but the hydroxyl radical-based oxidation of BPA should be carried out in the acidic pH range only. The water matrix components (bicarbonate, chloride and humic acid) showed higher scavenging effect in hydroxyl radical-based oxidation than that in the sulfate radical-based oxidation of BPA. UV/S2O8(2-) oxidation system utilized less energy (307 kWh/m(3)) EE/O in comparison to UV/H2O2 system (509 kWh/m(3)) under optimum operating conditions. The cost of UV irradiation far outweighed the cost of the oxidants in the process. However, the total cost of treatment of persulfate-based system was much lower than that of H2O2-based oxidation system.

Authors+Show Affiliations

Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India.Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India. Electronic address: immishra49@gmail.com.Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25889275

Citation

Sharma, Jyoti, et al. "Degradation and Mineralization of Bisphenol a (BPA) in Aqueous Solution Using Advanced Oxidation Processes: UV/H2O2 and UV/S2O8(2-) Oxidation Systems." Journal of Environmental Management, vol. 156, 2015, pp. 266-75.
Sharma J, Mishra IM, Kumar V. Degradation and mineralization of Bisphenol A (BPA) in aqueous solution using advanced oxidation processes: UV/H2O2 and UV/S2O8(2-) oxidation systems. J Environ Manage. 2015;156:266-75.
Sharma, J., Mishra, I. M., & Kumar, V. (2015). Degradation and mineralization of Bisphenol A (BPA) in aqueous solution using advanced oxidation processes: UV/H2O2 and UV/S2O8(2-) oxidation systems. Journal of Environmental Management, 156, 266-75. https://doi.org/10.1016/j.jenvman.2015.03.048
Sharma J, Mishra IM, Kumar V. Degradation and Mineralization of Bisphenol a (BPA) in Aqueous Solution Using Advanced Oxidation Processes: UV/H2O2 and UV/S2O8(2-) Oxidation Systems. J Environ Manage. 2015 Jun 1;156:266-75. PubMed PMID: 25889275.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation and mineralization of Bisphenol A (BPA) in aqueous solution using advanced oxidation processes: UV/H2O2 and UV/S2O8(2-) oxidation systems. AU - Sharma,Jyoti, AU - Mishra,I M, AU - Kumar,Vineet, Y1 - 2015/04/17/ PY - 2015/02/01/received PY - 2015/03/25/revised PY - 2015/03/28/accepted PY - 2015/4/19/entrez PY - 2015/4/19/pubmed PY - 2016/1/7/medline KW - Cost analysis KW - Electrical energy per order KW - Humic acid KW - Peroxide KW - Persulfate SP - 266 EP - 75 JF - Journal of environmental management JO - J Environ Manage VL - 156 N2 - This work reports on the removal and mineralization of an endocrine disrupting chemical, Bisphenol A (BPA) at a concentration of 0.22 mM in aqueous solution using inorganic oxidants (hydrogen peroxide, H2O2 and sodium persulfate, Na2S2O8;S2O8(2-)) under UV irradiation at a wavelength of 254 nm and 40 W power (Io = 1.26 × 10(-6) E s(-1)) at its natural pH and a temperature of 29 ± 3 °C. With an optimum persulfate concentration of 1.26 mM, the UV/S2O8(2-) process resulted in ∼95% BPA removal after 240 min of irradiation. The optimum BPA removal was found to be ∼85% with a H2O2 concentration of 11.76 mM. At higher concentrations, either of the oxidants showed an adverse effect because of the quenching of the hydroxyl or sulfate radicals in the BPA solution. The sulfate-based oxidation process could be used over a wider initial pH range of 3-12, but the hydroxyl radical-based oxidation of BPA should be carried out in the acidic pH range only. The water matrix components (bicarbonate, chloride and humic acid) showed higher scavenging effect in hydroxyl radical-based oxidation than that in the sulfate radical-based oxidation of BPA. UV/S2O8(2-) oxidation system utilized less energy (307 kWh/m(3)) EE/O in comparison to UV/H2O2 system (509 kWh/m(3)) under optimum operating conditions. The cost of UV irradiation far outweighed the cost of the oxidants in the process. However, the total cost of treatment of persulfate-based system was much lower than that of H2O2-based oxidation system. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/25889275/Degradation_and_mineralization_of_Bisphenol_A__BPA__in_aqueous_solution_using_advanced_oxidation_processes:_UV/H2O2_and_UV/S2O8_2___oxidation_systems_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(15)00185-1 DB - PRIME DP - Unbound Medicine ER -