NDLI: Comparative analysis of trace contaminants in leachates before and after a pre-oxidation using a solar photo-Fenton reaction

Content Provider	Springer Nature Link
Author	Rocha, Elisangela M. R. Mota, Francisco S. Vilar, Vítor J. P. Boaventura, Rui A. R.
Copyright Year	2013
Abstract	Sanitary landfill leachates are a complex mixture of high-strength organic and inorganic persistent contaminants, which constitute a serious environmental problem. In this study, trace contaminants present in leachates were investigated by gas chromatography-mass spectrometry and gas chromatography-flame ionization detector before and after a pre-oxidation step using a solar photo-Fenton process. More than 40 organic compounds were detected and identified as benzene (0.09 ± 0.07 mg L$^{-1}$), trichlorophenol (TCP) (0.18 ± 0.12 mg L$^{-1}$), phthalate esters (Di-n-butyl phthalate (DBP), Butyl benzyl phthalate (BBP), Di(2-ethylhexyl) phthalate (DEHP)) (DBP: 0.47 ± 0.01 mg L$^{-1}$; BBP: 0.36 ± 0.02 mg L$^{-1}$; DEHP: 0.18 ± 0.01 mg L$^{-1}$), among others. Toluene, pentachlorophenol, dimethyl phthalate, diethyl phthalate, and Di-n-octyl phthalate were never detected in any of the samples. After the photo-Fenton treatment process, TCP decreased to levels below its detection limit, benzene concentration increased approximately three times, and DBP concentration decreased about 77 % comparatively to the raw leachate sample. The solar photo-Fenton process was considered to be very efficient for the treatment of sanitary landfill leachates, leading to the complete elimination of 24 of the detected micropollutants to levels below their respective detection limits and low to significant abatement of seven other organic compounds, thus resulting in an increase of the leachate biodegradability.
Starting Page	5994
Ending Page	6006
Page Count	13
File Format	PDF
ISSN	09441344
Journal	Environmental Science and Pollution Research
Volume Number	20
Issue Number	9
e-ISSN	16147499
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-03-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sanitary landfill leachate Organic micropollutants Solar photo-Fenton GC-FID GC-MS Environment Environmental Chemistry Ecotoxicology Environmental Health Atmospheric Protection/Air Quality Control/Air Pollution Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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