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Degradation of sodium dodecyl sulphate in water using solar driven Fenton-like advanced oxidation processes.
J Hazard Mater. 2008 Mar 01; 151(2-3):578-84.JH

Abstract

Synthetic wastewater samples containing a model surfactant were treated using two different Fenton-like advanced oxidation processes promoted by solar radiation; the photo-Fenton reaction and Co/PMS/UV processes. Comparison between the different experimental conditions was performed by means of the overall surfactant degradation achieved and by obtaining the initial rate in the first 15 min of reaction (IR15). It was found that, for dark Fenton reaction, the maximum surfactant degradation achieved was 14% under low iron and oxidant concentration. Increasing Fenton reagents by one magnitude order, surfactant degradation achieved 63% in 60 min. The use of solar radiation improved the reaction rate by 17% under same conditions and an additional increase of 12.5% was obtained by adjusting initial pH to 2. IR15 values for dark and irradiated Fenton reactions were 0.143 and 0.154 mmol/min, respectively, for similar reaction conditions and this value increased to 0.189 mmol/min when initial pH was adjusted. The use of the Co/PMS system allow us to determine an increase in the degradation rate, for low reaction conditions (1 mM of transition metal; 4 mM oxidant) similar to those used in dark Fenton reaction. Surfactant degradation increased from 3%, for Fenton reaction, to 44.5% in the case of Co/PMS. When solar irradiation was included in the experiments, under same reaction conditions described earlier, surfactant degradation up to 64% was achieved. By increasing Co/PMS reagent concentration by almost 9 times under irradiated conditions, almost complete (>99%) surfactant degradation was reached in 5 min. Comparing IR15 values for Co/PMS and Co/PMS/UV, it allow us to observe that the use of solar radiation increased the degradation rate in one magnitude order when compared with dark experiments and further increase of reagent concentration increased reaction rate twice.

Authors+Show Affiliations

Instituto Mexicano de Tecnología del Agua, Paseo Cuauhnáhuac 8532, Progreso Jiutepec, Morelos 62550, Mexico. ebandala@tlaloc.imta.mxNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

17658215

Citation

Bandala, Erick R., et al. "Degradation of Sodium Dodecyl Sulphate in Water Using Solar Driven Fenton-like Advanced Oxidation Processes." Journal of Hazardous Materials, vol. 151, no. 2-3, 2008, pp. 578-84.
Bandala ER, Peláez MA, Salgado MJ, et al. Degradation of sodium dodecyl sulphate in water using solar driven Fenton-like advanced oxidation processes. J Hazard Mater. 2008;151(2-3):578-84.
Bandala, E. R., Peláez, M. A., Salgado, M. J., & Torres, L. (2008). Degradation of sodium dodecyl sulphate in water using solar driven Fenton-like advanced oxidation processes. Journal of Hazardous Materials, 151(2-3), 578-84.
Bandala ER, et al. Degradation of Sodium Dodecyl Sulphate in Water Using Solar Driven Fenton-like Advanced Oxidation Processes. J Hazard Mater. 2008 Mar 1;151(2-3):578-84. PubMed PMID: 17658215.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation of sodium dodecyl sulphate in water using solar driven Fenton-like advanced oxidation processes. AU - Bandala,Erick R, AU - Peláez,Miguel A, AU - Salgado,Maria J, AU - Torres,Luis, Y1 - 2007/06/12/ PY - 2007/02/01/received PY - 2007/06/04/revised PY - 2007/06/07/accepted PY - 2007/7/31/pubmed PY - 2008/5/20/medline PY - 2007/7/31/entrez SP - 578 EP - 84 JF - Journal of hazardous materials JO - J Hazard Mater VL - 151 IS - 2-3 N2 - Synthetic wastewater samples containing a model surfactant were treated using two different Fenton-like advanced oxidation processes promoted by solar radiation; the photo-Fenton reaction and Co/PMS/UV processes. Comparison between the different experimental conditions was performed by means of the overall surfactant degradation achieved and by obtaining the initial rate in the first 15 min of reaction (IR15). It was found that, for dark Fenton reaction, the maximum surfactant degradation achieved was 14% under low iron and oxidant concentration. Increasing Fenton reagents by one magnitude order, surfactant degradation achieved 63% in 60 min. The use of solar radiation improved the reaction rate by 17% under same conditions and an additional increase of 12.5% was obtained by adjusting initial pH to 2. IR15 values for dark and irradiated Fenton reactions were 0.143 and 0.154 mmol/min, respectively, for similar reaction conditions and this value increased to 0.189 mmol/min when initial pH was adjusted. The use of the Co/PMS system allow us to determine an increase in the degradation rate, for low reaction conditions (1 mM of transition metal; 4 mM oxidant) similar to those used in dark Fenton reaction. Surfactant degradation increased from 3%, for Fenton reaction, to 44.5% in the case of Co/PMS. When solar irradiation was included in the experiments, under same reaction conditions described earlier, surfactant degradation up to 64% was achieved. By increasing Co/PMS reagent concentration by almost 9 times under irradiated conditions, almost complete (>99%) surfactant degradation was reached in 5 min. Comparing IR15 values for Co/PMS and Co/PMS/UV, it allow us to observe that the use of solar radiation increased the degradation rate in one magnitude order when compared with dark experiments and further increase of reagent concentration increased reaction rate twice. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17658215/Degradation_of_sodium_dodecyl_sulphate_in_water_using_solar_driven_Fenton_like_advanced_oxidation_processes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00864-3 DB - PRIME DP - Unbound Medicine ER -