Department of Microbiology and Molecular Genetics, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
Int Microbiol. 2020 May;23(2):149-159. doi: 10.1007/s10123-019-00103-2. Epub 2019 Nov 18.
Azo dyes are aromatic compounds with one to many -N=N- groups as well as the leading class of synthetic dyes utilised in commercial solicitations. Azo dyes, released in the environment through textile effluents, have hazardous effects on the aquatic as well as human life. Their persistence and discharge into the environment are becoming a global concern; thus, the remediation of these contaminants has acquired great attention. The current review comprehensively discusses some of the main aspects of biodegradation of azo dyes. A variety of physicochemical approaches has already been utilised for treatment of textile effluents counting filtration, coagulation and chemical flocculation. Though these conventional techniques are effective, yet they are lavish and also comprise formation of concentrated sludge that makes a secondary disposal problem. In this regard, microbial usage is an effective, economical, bio-friendly and ecologically benign approach.
偶氮染料是一类芳香族化合物，具有一个到多个 -N=N- 基团，也是商业应用中使用的主要合成染料类别。偶氮染料通过纺织废水释放到环境中，对水生生物和人类生活都有危害。它们在环境中的持久性和排放正成为全球关注的问题；因此，这些污染物的修复引起了极大的关注。本综述全面讨论了偶氮染料生物降解的一些主要方面。已经利用了多种物理化学方法来处理纺织废水，包括过滤、混凝和化学絮凝。虽然这些传统技术是有效的，但它们也很昂贵，并且还包括形成浓缩污泥，这会产生二次处理问题。在这方面，微生物的使用是一种有效、经济、环保和生态友好的方法。
