处理纺织废水时操作条件对陶瓷超滤膜性能的影响。

Influence of operating conditions on ceramic ultrafiltration membrane performance when treating textile effluents.

机构信息

Departamento de Ingeniería Química y Nuclear, Universitat Politècnica de València, Valencia, Spain.

出版信息

Water Sci Technol. 2011;64(11):2169-76. doi: 10.2166/wst.2011.725.

DOI:10.2166/wst.2011.725

Abstract

This work studies the performance of three commercial ceramic ultrafiltration membranes (ZrO(2)-TiO(2)) treating raw effluent from a textile industry. The effect of crossflow velocity at 3, 4 and 5 m s(-1) as well as membrane characteristics, such as molecular weight cut-off (30, 50 and 150 kDa), on process performance were studied. Experiments were carried out in concentration mode in order to observe the effect of volume reduction factor simultaneously. Results showed a combined influence of both crossflow velocity and molecular weight cut-off on flux performance. TOC and COD removals up to 70% and 84% respectively were reached. On the other hand, almost complete color (>97%) and turbidity (>99%) removals were achieved for all the membranes and operating conditions.

摘要

这项工作研究了三种商业陶瓷超滤膜（ZrO(2)-TiO(2)）处理纺织工业原废水的性能。研究了跨流速度在 3、4 和 5 m s(-1)以及膜特性（如分子量截止值（30、50 和 150 kDa））对过程性能的影响。实验在浓缩模式下进行，以同时观察体积减少因子的影响。结果表明，跨流速度和分子量截止值对通量性能都有综合影响。TOC 和 COD 的去除率分别达到了 70%和 84%。另一方面，对于所有的膜和操作条件，颜色（>97%）和浊度（>99%）的去除几乎都是完全的。