A process of hydrolytic acidification-contact oxidation-flocculation was optimized,and applied in the treatment of wastewater from a ribbon weaving factory in Zhuhai,Guangdong Province.Results showed that the pollutants were successful removed from waster water after using FeSO4 as flocculant and 20 h contact oxidation.After treatment,pH and Chroma decreased 2.9 and 85%,respectively.Both CODcr and BOD₅ were removed more than 90%.This method ensured the effluent meet the waster water discharged standards of Guaongdong(DB44/26-2110).The experimental results indicated this technique can provide a flexible method in the wastewater treatment and provide useful information for similar wastewater treatment.