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首页> 外文会议>International Specialised Conference on Chemical Process Industries and Environmental Management, held in Cape Town, South Africa, 8-10 September, 1997 >Advanced treatment of dyeing wastewater for reuse
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Advanced treatment of dyeing wastewater for reuse

机译：印染废水深度处理回用

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摘要

As one of the main pollution sources in Hong Kong, the textile dyeing and finishing industry creates a significant proportion of water pollution in nearly harbour zones. Generally speaking, conventional biological treatment processes have difficulties in degrading many dye chemicals causing high COD and colour in dyeing wastewaters. Studies using physical and chemicla processes to further reduce COD and colour from dyeing wastewater have been intensively reported. The use of a photocatalytic process in the presence of TiO_2 to degrade many different types of dye chemicals has been confirmed. However, how to efficiency separate and reuse TiO_2 from treated wastewater became a notable problem in the application of a TiO_2 photo-xoidation process. This study aims to develop an advanced treatment process for dyeing Extended Aeration (DEA) reactor to initially remove those biodegradable matters and further treated by a TiO_2 photocatalytic reactor as advanced treatment for complete decolorization and high COD removal.
机译：作为香港主要的污染源之一，纺织染整工业在近海港区造成很大一部分水污染。一般而言，常规的生物处理方法难以降解许多染料化学物质，导致染色废水中的高COD和颜色。大量报道了使用物理和化学方法进一步减少印染废水中的COD和颜色的研究。已经证实在TiO 2存在下使用光催化方法降解许多不同类型的染料化学物质。然而，如何有效地从处理后的废水中分离并再利用TiO_2成为TiO_2光轴化工艺应用中的显着问题。这项研究的目的是开发一种先进的染色工艺，用于对扩展曝气（DEA）反应器进行染色，以初步去除那些可生物降解的物质，然后通过TiO_2光催化反应器进行进一步处理，作为完全脱色和高COD去除的先进处理。

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