Abstract

The treatment performance of the fluidized-bed Fenton process in terms of COD and color removal efficiency on a textile wastewater from a manu­facturing facility in Southern Taiwan was evaluated as a case study for the poten­tial application of fluidized-bed reactor (FBR) technology on reuse of industrial wastewater. Results showed that the effluent COD and color of the textile wastewater met the regulatory requirements of Taiwan when the following con­ditions were used in the treatment: concentration ratio COD:Fe 2+ :H 2 O 2 = 1:0.95:7.94, carrier = 74.07 g/l, initial pH = 3. The COD and color removal effi­ciency of the fluidized-bed Fenton process for synthetic commercial dyeing wastewater and actual textile wastewater were compared. At optimum pH =3, the fluidized-bed Fenton process can remove COD more easily from the commercial dye than from actual textile wastewater. In the case of color removal, the fluid­ized-bed Fenton had high removal efficiency. This study has shown that the fluid­ized-bed Fenton process can not only treat textile waste water to meet Taiwan’s regulatory limits for COD and color but also has the potential to be a technology on reuse of industrial wastewater

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