Bibliographic citations
Juárez, R., (2024). Degradación de surfactantes tipo alquilfenol etoxilados (APEOs) mediante oxidación avanzada utilizando fieltro de grafito modificado con hierro [Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/28806
Juárez, R., Degradación de surfactantes tipo alquilfenol etoxilados (APEOs) mediante oxidación avanzada utilizando fieltro de grafito modificado con hierro []. PE: Pontificia Universidad Católica del Perú; 2024. http://hdl.handle.net/20.500.12404/28806
@mastersthesis{renati/2001114,
title = "Degradación de surfactantes tipo alquilfenol etoxilados (APEOs) mediante oxidación avanzada utilizando fieltro de grafito modificado con hierro",
author = "Juárez Cahuana, Ritcher",
publisher = "Pontificia Universidad Católica del Perú",
year = "2024"
}
In this thesis are reported the results of degradation of nonylphenol ethoxylate (NPEO), a product derived from the ethoxylation of alkylphenols, which is used in the chemical, textile and paint industry for its wetting and antifoam properties as well as a surface tension modifier. It has been reported that the ethoxylated alkylphenols (APEOs) are considered endocrine disruptors and therefore their use is restricted. However, they are still used in developing countries like Peru, because there are no regulations or laws that hinder their use. In the framework of this thesis, the degradation of NPEO was carried out by means of the electro-Fenton process using graphite felts (FG) modified with iron as electrodes. The modification was carried out by the wet impregnation method, an iron salt in acidic medium. The characterization of the FG was carried out by SEM-EDS and DRX. To monitor the degradation of NPEO, COD determination was used because it indicates the amount of oxygen needed to oxidize the organic substances present in a sample and is directly linked to the concentration of NPEO. In the case of synthetic aqueous samples of 150 ppm of NPEO, about 99% of the initial value of chemical oxygen demand (COD) was removed by using the iron-modified electrodes; whereas the same treatment carried out with unmodified electrodes was able to remove 83% of the initial COD values. Finally, the electrochemical treatment performed on samples of industrial wastewater removed about 60% of the initial COD value by using the iron-modified electrodes.
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