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ADVANCED OXIDATION PROCESSES (AOX) TEXTILE WASTEWATER

Authors: Salas C., G.;

ADVANCED OXIDATION PROCESSES (AOX) TEXTILE WASTEWATER

Abstract

Los Procesos Avanzados de Oxidación (AOX) se basan en su capacidad de generación in-situ de radicales hidroxilo (•OH), especie con un elevado potencial de oxidación mediante la combinación de un agente oxidante (Hp2) con un catalizador (Fe(II)). Estos radicales •OH son capaces de oxidar muchos compuestos orgánicos de forma no selectiva y con altas velocidades de reacción. Esta propiedad es aprovechada para conseguir la completa mineralización (C02 y ácidos minerales) de los contaminantes o su degradación en sustancias más fácilmente biodegradables. Se pretende desarrollar una alternativa eficaz para la eliminación de materia orgánica de efluentes residuales mediante la aplicación de AOX, más concretamente procesos de Fenton al agua residual de una textil después del tratamiento físico químico. Con un contenido de DQO = 1700 mg/L y las condiciones ensayadas de pH=3, [Fe 2+]=200 mg/L, [H2O2]=3612 mg/L; se disminuyó al cabo de 40 minutos el 97% de la demanda química de oxígeno (DQO).

Advanced Oxidation Processes (AOX) are based on the in situ generation of hydroxyradicals (·OH), which have a high oxidation potential. In the case of Fenton processes !he generation of hydroxy radicals takes place by the combination of an oxidation agent (H202) with a catalyst (Fe(II)). These radicals are not selective and they react very fast with the organic matter,being able to oxidize a high variety of organic compounds. This property allows the degradation of pollutants into more biodegradable compounds, and,in some cases, their complete mineralization into C02 and mineral acids. Under optimal conditions, (pH=3, (Fe 2+] = 200 mg/L, [H2O2] = 3612 mg/L) the Fenton processes are able to reduce !he concentration of the organic matter present in the textile effiuent, up lo 97%.

Keywords

wastewater treatment, tratamiento de aguas residuales de textiles, Oxidación avanzada, Advanced Oxidation Processes

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green