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Titolo:
Effects of reaction conditions on the oxidation efficiency in the Fenton process
Autore:
Kang, YW; Hwang, KY;
Indirizzi:
Korea Inst Sci & Technol, Div Environm & Pros Technol, Environm Remediat Res Ctr, Seoul 130650, South Korea Korea Inst Sci & Technol Seoul South Korea 130650 ul 130650, South Korea
Titolo Testata:
WATER RESEARCH
fascicolo: 10, volume: 34, anno: 2000,
pagine: 2786 - 2790
SICI:
0043-1354(200007)34:10<2786:EORCOT>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Keywords:
Fenton's oxidation; landfill leachate; coagulation; COD removal efficiency; hydrogen peroxide;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Kang, YW Korea Inst Sci & Technol, Div Environm & Pros Technol, Environm Remediat Res Ctr, POB 131, Seoul 130650, South Korea Korea Inst Sci & Technol POB 131 Seoul South Korea 130650 Korea
Citazione:
Y.W. Kang e K.Y. Hwang, "Effects of reaction conditions on the oxidation efficiency in the Fenton process", WATER RES, 34(10), 2000, pp. 2786-2790

Abstract

The purpose of this study is to efficiently operate Fenton's oxidation process with quantitative analysis of the amount of the organic substances removed by oxidation and coagulation in treatment of the non-biodegradable landfill leachate by Fenton's reagents. The sample used was the biologically treated leachate in the Kimpo metropolitan landfill site in Korea and its GOD, BOD5, NH3-N and Cl- concentrations were about 1500, 30, 1300 and 1500 mg/l, respectively. The COD removal by oxidation of the organic substances with hydrogen peroxide was most efficient in the pH range of 2.5-4. However, it drastically decreased according to the pH value above 5. The COD removalefficiency by coagulation increased with the increase of the ferrous sulfate dosage, but the overall efficiency over a minimum dosage of 500 mg/l wasscarcely changed. The efficiency of hydrogen peroxide actually used in theoxidation of the organic substances was only about 45%. The optimum range of the coagulation pH to maximize the COD removal efficiency by coagulationwas 3-6, but that was slightly lower than the pH range of 6-9 generally known in the literature. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Documento generato il 09/07/20 alle ore 01:04:17