In order to compare with effect of photodegradation, methods of adsorption and chemical oxidation were used to degrade industrial wastewater of azo dye.

• 为了与光催化结果相比较，本研究还用焙烧石灰石、累托石吸附的方法和化学氧化法来处理含偶氮染料云母珠光颜料工业废水。