特别关注:印染废水及其治理技术

Focus:Wastewater of Dyeing and Its Treatment Technology

印染业是纺织服装产业链条的核心环节,除了对色彩和花型的需求外,几年来对于面料、服装的不同功能特性的需求正日益增长,这必然导致单位重量纤维上化学品使用量的增长。众所周知,化学品对环境的污染非常严重,印染行业的废水排放占到了纺织行业废水排放的80%以上,其污染即来源于在染整过程各工序中未使用完的染化料。不同工艺、不同工序所用到的染化料各不相同,它们所含杂质不同,理化特性差异大。这就导致了印染废水将是一个庞大的污水体系,无法用单一的方法开展污水治理工作,必须分门别类,针对不同工厂、不同批次、不同纤维类别产品的废水排放去设计治污措施。如此一来,就需要大量的专门从事印染废水治理的企业和人员,这便造就了印染废水治理产业。近年来,我国印染布产能不断增长,虽然环保节水的染整设备不断被应用到生产中,但废水排放量却在持续增长。为此,《纺织导报》记者对印染废水进行了深入调研,虽未深入到各个细分环节,但足以展现印染废水排放情况及其治理技术的发展现状。

Printing and dyeing process is an important sector of the textile industry chain that adds value to fabrics and garments.As the increase of the demand for functional properties,more and more chemicals have been used on fabrics,and pollution was caused by a great deal of dyes and auxiliary agents remained in production process.There is a huge difference in physical and chemical properties between those chemicals,so it is necessary to treat wastewater with different methods.Today,the concept of environmentally friendly production has gradually been taking root in our society,so the work of dyeing wastewater treatment is admits of no delay.More and more enterprises throw themselves into the industry of wastewater treatment.How is the operation of this special industry? What are the characteristics of this industry? Let us pay attention to this feature article:Wastewater of Dyeing and Its Treatment Technology.