摘要
近年来,随着印染工业的迅速发展,印染废水的排放量不断增加.印染废水具有成分复杂、色度高、碱度高、难降解有机物含量高、可生化性差等特点,是难处理的工业废水之一.如何高效处理印染废水事关民生大计.高级氧化法具有深度降解、去除率高、彻底破坏污染物结构等特点,被广泛用于印染废水的处理.目前,常见的高级氧化法有6种,即电催化氧化法、湿式催化氧化法、光催化氧化法、臭氧催化氧化法、Fenton催化氧化法和Fenton-like催化氧化法.本文综述常见的高级氧化法,分析其在印染废水处理中的应用,并展望其发展方向,以更好地利用高级氧化法处理印染废水.
Abstract
In recent years,with the rapid development of the printing and dyeing industry,the discharge of printing and dyeing wastewater has been continuously increasing.Printing and dyeing wastewater has the characteristics of complex composition,high chromaticity,high alkalinity,high content of difficult to degrade organic matter,and poor biodegradability,making it one of the difficult to treat industrial wastewater.How to efficiently treat printing and dyeing wastewater is crucial to people's livelihood.Advanced oxidation method has the characteristics of deep degradation,high removal rate,and complete destruction of pollutant structure,and is widely used in the treatment of printing and dyeing wastewater.At present,there are six common advanced oxidation methods,namely electrocatalytic oxidation,wet catalytic oxidation,photocatalytic oxidation,ozone catalytic oxidation,Fenton catalytic oxidation,and Fenton-like catalytic oxidation.This paper reviews common advanced oxidation methods,analyzes their applications in the treatment of printing and dyeing wastewater,and looks forward to their development direction,in order to better utilize advanced oxidation methods to treat printing and dyeing wastewater.