NDLI: Environmentally friendly system for the degradation of multipesticide residues in aqueous media by the Fenton’s reaction

Content Provider	Springer Nature Link
Author	S. Guimarães, Bru Kleemann, Natiele Caldas, Sergiane S. Costa, Fabiane P. Silveira, Maria A. K. Duarte, Fabio A. Primel, Ednei G.
Copyright Year	2013
Abstract	A Fenton oxidation system employing zero-valent iron (whose source was swarf, a residue of metallurgical industries, in powder form) and hydrogen peroxide for the treatment of an aqueous solution with six pesticides was developed, and the effect of the iron metal content, pH, and hydrogen peroxide concentration was evaluated. The characterization of the aqueous solution resulted in: pH 5.6, 105 mg L$^{−1}$ of dissolved organic carbon, and 44.6 NTU turbidity. In addition, the characterization of the swarf by FAAS and ICP-MS showed 98.43 ± 7.40 % of zero-valent iron. The removal was strongly affected by the content of iron metal, pH, and hydrogen peroxide concentration. The best degradation conditions were 2.0 g swarf, pH 2.0, and 5 mmol L$^{−1}$ H$_{2}$O$_{2}$. At the end of the treatment, the pesticide degradation ranged from 60 to 100 %, leading to 55 % mineralization. Besides, all hydrogen peroxide was consumed and the determination of total dissolved iron resulted in 2 mg L$^{−1}$. Thus, the advantages of this system are rapid degradation (up to 20 min), high-degradation rates, simple handling, and low cost. Figure A Fenton oxidation system employing Fe0 (in which the source of Fe0 was swarf, a residue in powder form of metallurgical industries) and H2O2 for the degradation of synthetic wastewater comprising six pesticides was developed, and the effect of the amount of Fe0, pH, and H2O2 concentration was evaluated.
Starting Page	584
Ending Page	592
Page Count	9
File Format	PDF
ISSN	09441344
Journal	Environmental Science and Pollution Research
Volume Number	21
Issue Number	1
e-ISSN	16147499
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-06-30
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Environmentally friendly system Multipesticide degradation Zero-valent iron Fenton’s reaction 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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