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Degradation of diethyl phthalate in treated effluents from an MBR via advanced oxidation processes: effects of nitrate on oxidation and a pilot-scale AOP operation.
Environ Technol. 2010 Jan; 31(1):15-27.ET

Abstract

The major objective of this study was to delineate the oxidation of diethyl phthalate (DEP) in water, using bench-scale UV/H2O2 and O3/H2O2 processes, and to determine the effects of nitrate (NO(3-)-N, 5 mg L(-1)) on this oxidation. The oxidation of DEP was also investigated through a pilot-scale advanced oxidation process (AOP), into which a portion of the effluent from a pilot-scale membrane bioreactor (MBR) plant was pumped. The bench-scale operation showed that DEP could be oxidized via solely UV oxidation or O3 oxidation. The adverse effect of nitrate on the DEP oxidation was remarkable in the UV/H2O2 process, and the nitrate clearly reduced its oxidation. The adverse effect of nitrate on O3 oxidation was also observed. It was noted, however, that the nitrate clearly enhanced the DEP oxidation in the O3/H2O2 process. A series of pilot-scale AOP operations indicated that the addition of H2O2 enhanced DEP oxidation in both the UV/H2O2 and O3/H2O2 processes. No noticeable adverse effect of nitrate was observed in the NO(3-)-N concentration of about 6.0 mg L(-1), which was naturally contained in the treatment stream. About 52% and 61% of the DEP were oxidized by each of these two oxidation processes in this pilot-scale operation. Both the UV/H2O2 and O3/H2O2 processes appeared to be desirable alternatives for DEP oxidation in treatment effluent streams.

Authors+Show Affiliations

School of Civil & Environmental Engineering, Yonsei University, 134 Shinchondong, Seoul 120-749, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

20232675

Citation

Park, J H., et al. "Degradation of Diethyl Phthalate in Treated Effluents From an MBR Via Advanced Oxidation Processes: Effects of Nitrate On Oxidation and a Pilot-scale AOP Operation." Environmental Technology, vol. 31, no. 1, 2010, pp. 15-27.
Park JH, Park CG, Lee JW, et al. Degradation of diethyl phthalate in treated effluents from an MBR via advanced oxidation processes: effects of nitrate on oxidation and a pilot-scale AOP operation. Environ Technol. 2010;31(1):15-27.
Park, J. H., Park, C. G., Lee, J. W., & Ko, K. B. (2010). Degradation of diethyl phthalate in treated effluents from an MBR via advanced oxidation processes: effects of nitrate on oxidation and a pilot-scale AOP operation. Environmental Technology, 31(1), 15-27. https://doi.org/10.1080/09593330903289697
Park JH, et al. Degradation of Diethyl Phthalate in Treated Effluents From an MBR Via Advanced Oxidation Processes: Effects of Nitrate On Oxidation and a Pilot-scale AOP Operation. Environ Technol. 2010;31(1):15-27. PubMed PMID: 20232675.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation of diethyl phthalate in treated effluents from an MBR via advanced oxidation processes: effects of nitrate on oxidation and a pilot-scale AOP operation. AU - Park,J H, AU - Park,C G, AU - Lee,J W, AU - Ko,K B, PY - 2010/3/18/entrez PY - 2010/3/18/pubmed PY - 2010/4/17/medline SP - 15 EP - 27 JF - Environmental technology JO - Environ Technol VL - 31 IS - 1 N2 - The major objective of this study was to delineate the oxidation of diethyl phthalate (DEP) in water, using bench-scale UV/H2O2 and O3/H2O2 processes, and to determine the effects of nitrate (NO(3-)-N, 5 mg L(-1)) on this oxidation. The oxidation of DEP was also investigated through a pilot-scale advanced oxidation process (AOP), into which a portion of the effluent from a pilot-scale membrane bioreactor (MBR) plant was pumped. The bench-scale operation showed that DEP could be oxidized via solely UV oxidation or O3 oxidation. The adverse effect of nitrate on the DEP oxidation was remarkable in the UV/H2O2 process, and the nitrate clearly reduced its oxidation. The adverse effect of nitrate on O3 oxidation was also observed. It was noted, however, that the nitrate clearly enhanced the DEP oxidation in the O3/H2O2 process. A series of pilot-scale AOP operations indicated that the addition of H2O2 enhanced DEP oxidation in both the UV/H2O2 and O3/H2O2 processes. No noticeable adverse effect of nitrate was observed in the NO(3-)-N concentration of about 6.0 mg L(-1), which was naturally contained in the treatment stream. About 52% and 61% of the DEP were oxidized by each of these two oxidation processes in this pilot-scale operation. Both the UV/H2O2 and O3/H2O2 processes appeared to be desirable alternatives for DEP oxidation in treatment effluent streams. SN - 0959-3330 UR - https://www.unboundmedicine.com/medline/citation/20232675/Degradation_of_diethyl_phthalate_in_treated_effluents_from_an_MBR_via_advanced_oxidation_processes:_effects_of_nitrate_on_oxidation_and_a_pilot_scale_AOP_operation_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330903289697 DB - PRIME DP - Unbound Medicine ER -