Colour removal from textile wastewater using a pilot-scale dual-stage MBR and subsequent RO system

被引：60
作者：
De Jager, D. [1 ]
Sheldon, M. S. [1 ]
Edwards, W. [2 ]
机构：
[1] Cape Peninsula Univ Technol, Dept Chem Engn, ZA-8000 Cape Town, South Africa
[2] Atl Hydro, ZA-7974 Cape Town, South Africa
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2014年 / 135卷
基金：
新加坡国家研究基金会;
关键词：
Colour removal; Dual-stage membrane bioreactor; Reverse osmosis; Textile wastewater treatment; MEMBRANE BIOREACTOR; AZO DYES; AEROBIC TREATMENT; DECOLORIZATION; REACTOR; EFFLUENTS; REUSE;
D O I：
10.1016/j.seppur.2014.08.008
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A necessity exists to find an effective treatment method capable of removing both the strong colour and the toxic organic compounds from textile wastewater. A pilot-scale dual-stage membrane bioreactor (dsMBR) incorporating two ultrafiltration (UF) sidestream membrane modules was designed, constructed, operated and evaluated on-site for treating high strength textile wastewater. The wastewater stream was characterised by a colour range of 195-2070 ADMI units and a chemical oxygen demand (COD) of between 728 and 1033 mg/L. A consistent reduction in the colour of the incoming wastewater was evident in the treatment stages. The residual colour and remaining salt in the UF permeate was treated with reverse osmosis (RO). The colour in the wastewater was reduced from an average of 660 ADMI units to similar to 12 ADMI units in the RO permeate, a lower ADMI compared to the potable water (similar to 17 ADMI units) used on-site by this textile company. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：135 / 144
页数：10
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