Tags

Type your tag names separated by a space and hit enter

Combination of UVC-LEDs and ultrasound for peroxymonosulfate activation to degrade synthetic dye: influence of promotional and inhibitory agents and application for real wastewater.
Environ Sci Pollut Res Int. 2018 Feb; 25(6):6003-6014.ES

Abstract

Several efforts have been carried out to present an efficient method for PMS activation. This work presented the use of UVC-LEDs (light emitting diodes) and US (ultrasound) to activate PMS for decolorization of Direct Orange 26 (DO26). The performance of UVC-LEDs/US/PMS process was effective in a broad range of pH (3.0-9.0). Complete decolorization was obtained in only 12 min in pH = 7.0 and 1.5 mM PMS. Bicarbonate and nitrite ions showed inhibitory effect on decolorization while sulfate, chloride, and nitrate had no significant effect on the performance of the process. Transition metals in homogenous (Fe2+ and Co2+) and heterogeneous forms (Fe3O4 and Co3O4) accelerated decolorization in UVC-LEDs/US/PMS system. The presence of turbidity declined the performance of UVC-LEDs/US/PMS through the prevention of PMS activation by UV and US. Compared to other oxidants (S2O82-, H2O2 and 2Na2CO3.3H2O2), PMS proved the higher function in decolorization of DO26 in UVC-LEDs/US/oxidant system. Scavenging experiments showed that 1O2, HO•, and SO4•- contributed in the degradation of DO26. Moreover, the UVC-LEDs/US/PMS system could markedly increase the biodegradability of real textile wastewater. These results promised an effective process for degradation of organic pollutants from aquatic environment.

Authors+Show Affiliations

Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.Department of Environmental Health Engineering, Abadan School of Medical Sciences, Abadan, Iran. Ghanbari.env@gmail.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29238925

Citation

Ahmadi, Mehdi, and Farshid Ghanbari. "Combination of UVC-LEDs and Ultrasound for Peroxymonosulfate Activation to Degrade Synthetic Dye: Influence of Promotional and Inhibitory Agents and Application for Real Wastewater." Environmental Science and Pollution Research International, vol. 25, no. 6, 2018, pp. 6003-6014.
Ahmadi M, Ghanbari F. Combination of UVC-LEDs and ultrasound for peroxymonosulfate activation to degrade synthetic dye: influence of promotional and inhibitory agents and application for real wastewater. Environ Sci Pollut Res Int. 2018;25(6):6003-6014.
Ahmadi, M., & Ghanbari, F. (2018). Combination of UVC-LEDs and ultrasound for peroxymonosulfate activation to degrade synthetic dye: influence of promotional and inhibitory agents and application for real wastewater. Environmental Science and Pollution Research International, 25(6), 6003-6014. https://doi.org/10.1007/s11356-017-0936-8
Ahmadi M, Ghanbari F. Combination of UVC-LEDs and Ultrasound for Peroxymonosulfate Activation to Degrade Synthetic Dye: Influence of Promotional and Inhibitory Agents and Application for Real Wastewater. Environ Sci Pollut Res Int. 2018;25(6):6003-6014. PubMed PMID: 29238925.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Combination of UVC-LEDs and ultrasound for peroxymonosulfate activation to degrade synthetic dye: influence of promotional and inhibitory agents and application for real wastewater. AU - Ahmadi,Mehdi, AU - Ghanbari,Farshid, Y1 - 2017/12/13/ PY - 2017/09/05/received PY - 2017/12/03/accepted PY - 2017/12/15/pubmed PY - 2018/11/27/medline PY - 2017/12/15/entrez KW - Dye degradation KW - Peroxymonosulfate KW - Sulfate radical KW - UVC-LEDs KW - Ultrasound SP - 6003 EP - 6014 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 6 N2 - Several efforts have been carried out to present an efficient method for PMS activation. This work presented the use of UVC-LEDs (light emitting diodes) and US (ultrasound) to activate PMS for decolorization of Direct Orange 26 (DO26). The performance of UVC-LEDs/US/PMS process was effective in a broad range of pH (3.0-9.0). Complete decolorization was obtained in only 12 min in pH = 7.0 and 1.5 mM PMS. Bicarbonate and nitrite ions showed inhibitory effect on decolorization while sulfate, chloride, and nitrate had no significant effect on the performance of the process. Transition metals in homogenous (Fe2+ and Co2+) and heterogeneous forms (Fe3O4 and Co3O4) accelerated decolorization in UVC-LEDs/US/PMS system. The presence of turbidity declined the performance of UVC-LEDs/US/PMS through the prevention of PMS activation by UV and US. Compared to other oxidants (S2O82-, H2O2 and 2Na2CO3.3H2O2), PMS proved the higher function in decolorization of DO26 in UVC-LEDs/US/oxidant system. Scavenging experiments showed that 1O2, HO•, and SO4•- contributed in the degradation of DO26. Moreover, the UVC-LEDs/US/PMS system could markedly increase the biodegradability of real textile wastewater. These results promised an effective process for degradation of organic pollutants from aquatic environment. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/29238925/Combination_of_UVC_LEDs_and_ultrasound_for_peroxymonosulfate_activation_to_degrade_synthetic_dye:_influence_of_promotional_and_inhibitory_agents_and_application_for_real_wastewater_ L2 - https://dx.doi.org/10.1007/s11356-017-0936-8 DB - PRIME DP - Unbound Medicine ER -