A NEW PHOTO-FENTON PROCEDURE APPLIED IN OXIDATIVE DEGRADATION OF ORGANIC COMPOUNDS FROM WASTEWATER

A method of oxidative mineralization of the salicylic acid and its derivatives as well as medicinal products containing salicylic acid as the active ingredient was investigated. Destruction of the organic compounds is possible both in the electrolyte under the oxidant, electrochemically formed in situ in the sulphuric acid solutions, and at the anode so. Simultaneously, at the cathode, reduction of the zinc ions, contained in a number of medicinal products, is possible. Final products of the oxidation are simple non-toxic organic compounds, carbon dioxide, and water. This process is the most effective in the 40% sulphuric acid at the current density of 0.5–0.8 A/cm2 and the temperature of 30–50 °C.

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96/06271 TlO2-photocatalyzed oxidative degradation of binary mixtures of vaporized organic compounds

Fuel and Energy Abstracts ◽

10.1016/s0140-6701(97)83660-0 ◽

1996 ◽

Vol 37 (6) ◽

pp. 442

Keyword(s):

Organic Compounds ◽

Binary Mixtures ◽

Oxidative Degradation

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Oxidative Degradation of Saturated Normal Long-chain Organic Compounds by Permanganate.

Acta Chemica Scandinavica ◽

10.3891/acta.chem.scand.24-3416 ◽

1970 ◽

Vol 24 ◽

pp. 3416-3416 ◽

Cited By ~ 1

Author(s):

Nguyen Dinh-Nguyen ◽

Aino Raal ◽

S. Liaaen-Jensen ◽

S. E. Rasmussen ◽

Akira Shimizu

Keyword(s):

Organic Compounds ◽

Oxidative Degradation ◽

Long Chain

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Oxidative Degradation of Organic Compounds Using Zero-Valent Iron in the Presence of Natural Organic Matter Serving as an Electron Shuttle

Environmental Science & Technology ◽

10.1021/es801705f ◽

2009 ◽

Vol 43 (3) ◽

pp. 878-883 ◽

Cited By ~ 128

Author(s):

Seung-Hee Kang ◽

Wonyong Choi

Keyword(s):

Organic Matter ◽

Organic Compounds ◽

Natural Organic Matter ◽

Oxidative Degradation ◽

Zero Valent Iron ◽

Electron Shuttle

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Chemical Recycling of Plastics to Useful Organic Compounds by Oxidative Degradation

Angewandte Chemie International Edition ◽

10.1002/(sici)1521-3773(19981217)37:23<3306::aid-anie3306>3.0.co;2-b ◽

1998 ◽

Vol 37 (23) ◽

pp. 3306-3308 ◽

Cited By ~ 19

Author(s):

Anne Pifer ◽

Ayusman Sen

Keyword(s):

Organic Compounds ◽

Oxidative Degradation ◽

Chemical Recycling

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Photocatalytic oxidative Degradation of vapors of some organic compounds over TiO2

Research on Chemical Intermediates ◽

10.1163/156856794x00531 ◽

1994 ◽

Vol 20 (7) ◽

pp. 755-781 ◽

Cited By ~ 18

Author(s):

Norman N. Lichtin ◽

Muthusami Avudaithai ◽

Elliot Berman ◽

Junchang Dong

Keyword(s):

Organic Compounds ◽

Oxidative Degradation

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Oxidative degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) in subcritical and supercritical waters

Water Science & Technology ◽

10.2166/wst.2010.329 ◽

2010 ◽

Vol 62 (3) ◽

pp. 484-490 ◽

Cited By ~ 4

Author(s):

M. Hashimoto ◽

S. Taniguchi ◽

R. Takanami ◽

R. R. Giri ◽

H. Ozaki

Keyword(s):

Acetic Acid ◽

Organic Compounds ◽

Oxidative Degradation ◽

Practical Significance ◽

Dichlorophenoxyacetic Acid ◽

Chlorinated Organic Compounds ◽

Major Step ◽

Chlorinated Pesticides ◽

Toc Removal ◽

2,4 Dichlorophenoxyacetic Acid

Presence of chlorinated organic compounds in water bodies has become a concern among governments, health authorities and general public. Oxidation of organic compounds in water under high temperature and pressure is considered as a promising technique, but usefulness of the technique to mineralize 2,4-dichlorophenoxyacetic acid (2,4-D) is not well understood. This article aimed to elucidate degradation characteristics of 2,4-D in both subcritical and supercritical waters by laboratory batch experiments. 2,4-D degradation, total organic carbon (TOC) removal and dechlorination increased with increasing reaction time and temperature especially in subcritical waters, while dechlorination was a major step. 2,4-dichlorophenol (2,4-DCP) and acetic acid were the main degradation intermediates both in subcritical and supercritical waters. Though 2,4-D disappeared almost completely in subcritical waters near critical region (≈99%), significant amounts of TOC and organic chlorine still remained as 2,4-DCP and acetic acid. But TOC removal and dechlorination were significantly enhanced (≈95 and 91% respectively) in supercritical waters. Complete mineralization of 2,4-D in subcritical waters required a considerably longer reaction period, while the mineralization was almost complete within a short reaction period in supercritical waters. This is an important information of practical significance for oxidative degradation of chlorinated pesticides similar to 2,4-D.

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