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Clean Technologies and Environmental Policy

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01.04.2013 | Original Paper

Oxidation of refractory organics by heterogeneous Fenton to reduce organic load in tannery wastewater

verfasst von: G. Sekaran, S. Karthikeyan, C. Evvie, R. Boopathy, P. Maharaja

Erschienen in: Clean Technologies and Environmental Policy | Ausgabe 2/2013

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Abstract

The effectiveness of Fenton oxidation of tannery wastewater was investigated under different operational conditions such as pH, time and dosages of Fenton reagent (H₂O₂ and FeSO₄·7H₂O). Different mass ratios of Fe²⁺/H₂O₂ recorded the percentage COD reduction from 54 to 80 % in 4 h at pH 3.5. The batch study has established COD reduction by 82 % with mesoporous activated carbon (MAC₈₀₀) catalyst and the percentage reduction of COD was 94 % under integrated homo- and hetero-Fenton oxidations of tannery wastewater. Fenton reagent was efficient enough to oxidize most of the organic compounds present in the tannery wastewater. This was confirmed through UV–visible spectroscopy, FT-IR spectroscopy, cyclic voltammetry and NMR spectroscopy.

Vorheriger Artikel Membrane filtration of chlorination and extraction stage bleach plant effluent in Indian paper Industry

Nächster Artikel Artificial neural network (ANN) modeling of dynamic adsorption of crystal violet from aqueous solution using citric-acid-modified rice (Oryza sativa) straw as adsorbent

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Titel: Oxidation of refractory organics by heterogeneous Fenton to reduce organic load in tannery wastewater
verfasst von: G. Sekaran
S. Karthikeyan
C. Evvie
R. Boopathy
P. Maharaja
Publikationsdatum: 01.04.2013
Verlag: Springer-Verlag
Erschienen in: Clean Technologies and Environmental Policy / Ausgabe 2/2013
Print ISSN: 1618-954X
Elektronische ISSN: 1618-9558
DOI: https://doi.org/10.1007/s10098-012-0502-5

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