中文摘要：

偶氮染料易于合成、着色能力强，使用广泛。其使用过程中产生大量的偶氮染料废水，严重污染环境。探索高效节能、环境友好且成本较低的偶氮染料治理方法已成为环境修复领域的研究重点。综述了物理法、化学法和生物法处理偶氮染料废水的研究进展，对生物法脱色偶氮染料的研究进展，并展望了偶氮染料废水处理技术的研究趋势。

英文摘要：

Azo dyes are widely used in various industrial fields due to its characteristics of easy synthesis and strongdying ability. However, large amount of dying wastewater was produced, which resulted in severe environmental pollution. Developing energy efficient, eco-fiiend and low cost methods to treatazo-dye wastewater has become the research focus of environmental remediation field. This paper reviewed the physical, chemical and biological methods forthe decolorizarion ofazo dye, and prospected theresearch trends infuture.