Degradation of organic matter in olive-oil mill wastewater through homogeneous Fenton-like reaction

被引：160

作者：

Martinez Nieto, Leopoldo ^{[2
]}

Hodaifa, Gassan ^{[1
]}

Rodriguez, Salvador ^{[2
]}

Gimenez, Jose A. ^{[2
]}

Ochando, Javier ^{[2
]}

机构：

[1] Univ Pablo de Olavide, Mol Biol & Biochem Engn Dept, Seville 41013, Spain

[2] Univ Granada, Dept Chem Engn, E-18071 Granada, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 173卷 / 02期

关键词：

Fenton's reagent; Oxidation; COD; Phenols compounds; Kinetics study; Olive-oil mill wastewater; ADVANCED OXIDATION; ELECTROCHEMICAL OXIDATION; REACTION-KINETICS; OZONATION; WASTEWATERS; REAGENT; OPTIMIZATION; ELECTRODES;

D O I：

10.1016/j.cej.2011.08.022

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of organic matter present in olive-oil mill wastewater from two-phase olive-oil extraction process was carried out by chemical oxidation reaction. It was shown that organic matter is efficiently degraded through a Fenton-like reaction using FeCl3 as catalyst in the presence of hydrogen peroxide. Oxidation was carried out in a batch reactor with controlled temperature. Operating at pH 3.0. H2O2 concentration = 100 g dm(-3), [FeCl3]/[H2O2] ratio = 0.04, and ambient temperature (281-285 K). 92.6% of chemical oxygen demand and 99.8% of total phenols were removed. Kinetics can be described by a two step first order model. The kinetic parameters at ambient temperature and pH 3 were calculated. In the temperature range 278-313 K, the best performance was obtained at 303 K. The experiments performed at different temperatures allowed to calculate the apparent activation energy E-a = 8.7 kJ mol(-1). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：503 / 510

页数：8

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