摘要
传统的、以无控微生物活性为基础的物理化学凝絮方法不足以清除纺织废水中的偶氮染料。有必要通过厌氧和好氧处理来将偶氮染料还原为芳香胺,然后将胺矿化。研究人员在筛选适用于废水脱色的酶方面进行了大量研究。他们对微生物酶,如偶氮还原酶(azoreductase)、过氧化氢-过氧化物酶(catalase-peroxidase) 和漆酶(laccase)进行研究,以确定能优化工艺效率的动力参数。使用商品或固定化漆酶对含活性染料的废水进行脱色,通过水的循环利用达到节能、节水的目的。欧洲许多国家已经安装了采用包括微生物技术在内的综合技术废水处理中试设备与商业化设备。
The conventional method of physicochemical flocculation with uncontrolled microbial activity is inadequate for efficient removal of azo dyes in textile wastewater. Anaerobic and aerobic effluent treatments are necessary to reduce azo dyes and aromatic amines, followed by amine mineralization. Researchers have carried out investigations to isolate suitable enzymes for decolorizing wastewater. Microbial enzymes, e.g. azoreductase, catalase-peroxidase, and laccases, were studied to establish suitable kinetic parameters for optimizing process efficiency. Use of commercial or immobilized laccase for decolorizing reactive dye effluent was demonstrated, showing potential for energy and water usage conservation by treated water recycling. Several pilot scale and commercial plants based on a combination of technologies, including microbial, have been set up in many European countries.
出处
《纺织导报》
CAS
北大核心
2006年第6期84-86,共3页
China Textile Leader
关键词
偶氮染料
酶
微生物
废水
azo dyes
enzymes
microorganisms
wastewater.
