This research focuses on addressing the environmental challenges posed by dairy wastewater problems using advanced oxidation processes (AOP). This study uses a composite of MIL-88 A(Fe)/C with an electro-Fenton process to mitigate the organic pollutants in dairy wastewater. The MIL-88 A(Fe)/C composite is synthesized by combining MIL88-A with carbon in a hydrothermal process, and its morphological characterization was investigated by spectroscopy and microscopy methods. The parameters of pH, time, composite concentration, and oxidizer concentration were optimized by the response surface method (RSM). In all experiments, the electrode distance was 3 cm and the current density was 9 A/m