Study on Fixed Bed Photocatalytic Oxidation Degradation of Real Dyeing-Wastewater

In this paper, the disposal of real dyeing-wastewater was studied by the use of table designing and fixed bed reactor, and gained the optimal condition to remove CODcr and color, including light intensity、the beginning pH、time、concentration of H2O2. The results showed that CODcr and color of real dyeing-wastewater was reduced effectively by fixed bed reactor. The optimum conditions of treatment were determined to be:UV irradiation time 120 min; pH=6; 300 W high-pressure mercury vapour lamp; proper adding H2O2.