e-journal

UV/Methyl Ethyl Ketone Peroxide Mediated Chlorophenol Congener Degradation in Basic Media

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Abstract

The ubiquitous presence of chlorophenols (CPs) continues to be a cause of concern, owing to their recalcitrant nature. In this context, the present work investigated the degradation of model compounds, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6-richlorophenol, and pentachlorophenol, by an organic oxidant,
methyl ethyl ketone peroxide (MEKP) coupled with ultraviolet irradiation in basic media. Chemical analysis was followed by high-performance liquid chromatography and gas chromatography–mass spectrometry. Despite exhibiting varied patterns of decline, chemical oxygen demand was eventually noted to decrease to the extent of up to 70 %. Simultaneous increase/ decrease in the release of chloride ions and decrease in pH indicated that parallel reactions were occurring, which led to the formation of acidic reaction products. First-order dynamics
was approximated for all CP congener degradation. The degraded compounds showed absolutely no presence of chlorine atoms, which was a noteworthy feature testifying to the fact that MEKP action was capable of detoxification of CP congeners.

Keywords : Organic oxidant, Methyl ethyl ketone peroxide (MEKP, Chlorophenol, Degradation, Kinetics

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Informasi Detail

Judul Seri

Water Air Soil Pollution (2013) 224:1376

No. Panggil

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Penerbit

: Springer Netherlands., 2013

Deskripsi Fisik

Water Air Soil Pollut (2013) 224:1376

Bahasa

English

ISBN/ISSN

1573-2932

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ILMU LINGKUNGAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

Ety

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