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Treatment of 1,10-phenanthroline laboratory wastewater using the solar photo-Fenton process.
J Hazard Mater. 2007 Jul 31; 146(3):508-13.JH

Abstract

The red Fe(2+)-phenanthroline complex is the basis of a classical spectrophotometric method for determination of iron. Due to the toxicity of this complexing agent, direct disposal of the wastewaters generated in analytical laboratories is not environmentally safe. This work evaluates the use of the solar photo-Fenton process for the treatment of laboratory wastewaters containing phenanthroline. Firstly, the degradation of phenanthroline in water was evaluated at two concentration levels (0.1 and 0.01%, w/v) and the efficiencies of degradation using ferrioxalate (FeOx) and ferric nitrate were compared. The 0.01% w/v solution presented much higher mineralization, achieving 82% after 30min of solar irradiation with both iron sources. The solar photo-Fenton treatment of laboratory wastewater containing, in addition to phenanthroline, other organic compounds such as herbicides and 4-chlorophenol, equivalent to 4,500mgL(-1) total organic carbon (TOC) resulted in total degradation of phenanthroline and 25% TOC removal after 150min, in the presence of either FeOx or ferric nitrate. A ratio of 1:10 dilution of the residue increased mineralization in the presence of ferrioxalate, achieving 38% TOC removal after 120min, while use of ferric nitrate resulted in only 6% mineralization over the same period.

Authors+Show Affiliations

UNESP-São Paulo State University, Institute of Chemistry of Araraquara, R. Prof. Francisco Degni s/n, P.O. Box 355, 14800-900 Araraquara, SP, Brazil. milasilv@hotmail.comNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

17531377

Citation

da Silva, Milady Renata Apolinário, et al. "Treatment of 1,10-phenanthroline Laboratory Wastewater Using the Solar photo-Fenton Process." Journal of Hazardous Materials, vol. 146, no. 3, 2007, pp. 508-13.
da Silva MR, Trovó AG, Nogueira RF. Treatment of 1,10-phenanthroline laboratory wastewater using the solar photo-Fenton process. J Hazard Mater. 2007;146(3):508-13.
da Silva, M. R., Trovó, A. G., & Nogueira, R. F. (2007). Treatment of 1,10-phenanthroline laboratory wastewater using the solar photo-Fenton process. Journal of Hazardous Materials, 146(3), 508-13.
da Silva MR, Trovó AG, Nogueira RF. Treatment of 1,10-phenanthroline Laboratory Wastewater Using the Solar photo-Fenton Process. J Hazard Mater. 2007 Jul 31;146(3):508-13. PubMed PMID: 17531377.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Treatment of 1,10-phenanthroline laboratory wastewater using the solar photo-Fenton process. AU - da Silva,Milady Renata Apolinário, AU - Trovó,Alam Gustavo, AU - Nogueira,Raquel Fernandes Pupo, Y1 - 2007/04/20/ PY - 2007/5/29/pubmed PY - 2007/9/28/medline PY - 2007/5/29/entrez SP - 508 EP - 13 JF - Journal of hazardous materials JO - J Hazard Mater VL - 146 IS - 3 N2 - The red Fe(2+)-phenanthroline complex is the basis of a classical spectrophotometric method for determination of iron. Due to the toxicity of this complexing agent, direct disposal of the wastewaters generated in analytical laboratories is not environmentally safe. This work evaluates the use of the solar photo-Fenton process for the treatment of laboratory wastewaters containing phenanthroline. Firstly, the degradation of phenanthroline in water was evaluated at two concentration levels (0.1 and 0.01%, w/v) and the efficiencies of degradation using ferrioxalate (FeOx) and ferric nitrate were compared. The 0.01% w/v solution presented much higher mineralization, achieving 82% after 30min of solar irradiation with both iron sources. The solar photo-Fenton treatment of laboratory wastewater containing, in addition to phenanthroline, other organic compounds such as herbicides and 4-chlorophenol, equivalent to 4,500mgL(-1) total organic carbon (TOC) resulted in total degradation of phenanthroline and 25% TOC removal after 150min, in the presence of either FeOx or ferric nitrate. A ratio of 1:10 dilution of the residue increased mineralization in the presence of ferrioxalate, achieving 38% TOC removal after 120min, while use of ferric nitrate resulted in only 6% mineralization over the same period. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17531377/Treatment_of_110_phenanthroline_laboratory_wastewater_using_the_solar_photo_Fenton_process_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00535-3 DB - PRIME DP - Unbound Medicine ER -