Importance of H2O2/Fe2+ ratio in Fenton's treatment of a carpet dyeing wastewater

被引：232

作者：

Gulkaya, Ipek ^{[1
]}

Surucu, Gulerman A. ^{[1
]}

Dilek, Filiz B. ^{[1
]}

机构：

[1] Middle E Tech Univ, Environm Engn Dept, TR-06531 Ankara, Turkey

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2006年 / 136卷 / 03期

关键词：

carpet dyeing wastewater; Fenton's oxidation; Fenton's coagulation; H2O2/Fe2+ ratio;

D O I：

10.1016/j.jhazmat.2006.01.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effectiveness of the Fenton's reagent (H2O2/Fe2+) in the treatment of carpet dyeing wastewater was investigated under different operational conditions, namely, H2O2 and FeSO4 concentrations, initial pH and temperature. Up to 95% COD removal efficiency was attained using 5.5 g/l FeSO4 and 385 g/l H2O2 at a pH of 3, temperature of 50 degrees C. The H2O2/Fe2+ ratio (g/g) was found to be between 95 and 290 for maximum CO removal. It was noteworthy that, keeping H2O2/Fe2+ ratio constant within the range of 95-290, it became possible to decrease FeSO4 concentration to 1.1 g/l and H2O2 concentration to 96.3 g/l, still achieving nearly the same COD removal efficiency. The relative efficiencies of Fenton's oxidation and coagulation stages revealed that Fenton's coagulation removed organic compounds which were not removed by Fenton's oxidation, indicating that the Fenton's coagulation acted as a polishing step. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：763 / 769

页数：7

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