Photocatalytic and biological oxidation treatment of real textile wastewater

被引：9

作者：

Ambaye T.G. ^{[1
,2
]}

Hagos K. ^{[3
]}

机构：

[1] Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, Brescia

[2] Department of Chemistry, Mekelle University, Mekelle

[3] Mekelle Institute of Technology (MIT), Mekelle University, Mekelle

来源：

Nanotechnology for Environmental Engineering | 2020年 / 5卷 / 03期

关键词：

Decolorization; Hydrogen peroxide; Photocatalytic degradation; Textile industry; Titanium dioxide; Wastewater treatment;

D O I：

10.1007/s41204-020-00094-w

中图分类号：

学科分类号：

摘要：

Abstract: In this study, the discoloration of wastewater containing azo dyes by chemical oxidation process combined with a biological treatment was evaluated and applied to real textile wastewater generated from one Ethiopian industrial site. The use of TiO2 as photocatalyst and the effect of the addition of H2O2 on color removal was first investigated. Photocatalysis was followed by aerobic biological treatment, and their combination resulted in a high extent of color removal (93.3%) and chemical oxygen demand (COD) reduction (90.4%). This was reached without pH correction and with low energy consumption compared to the implementation of AOPs alone. This study performed with real textile wastewater allows the direct extrapolation of the data for the design of a cost-effective and applicable treatment procedure at a pilot scale. Graphic abstract: [Figure not available: see fulltext.] © 2020, The Author(s).

引用

共 62 条

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