The color wastewater treatment have been attract interests in the late years due to the highest amount of total synthetic dyes (about 15%) that are disposed into water. Besides the non-aesthetic pollution generated by these dyes even at concentrations below 1 ppm, they can generate dangerous by-products through hydrolysis, oxidation or reduction that can take place into the wastewater. Several methods chemical, physical and biological have been previously reported [1], among these the highly effective, uncomplicated and economical is adsorption. However, the main drawback is the generation of colourless but toxic compounds or huge amounts of sludge. In order to reduce the adsorption drawbacks, magnetic nanomaterials have proved to be an option, and beside their large removal capacity, fast kinetics and reactivity for contaminant removal, presents high separation efficiency and reusability [2]. In this work, magnetic nanoparticles embedded within a matrix of activated carbon (NMC) were tested as adsorbent for the removal of Acid Orange 7 (AO7) and Methylene Blue (MB) from single and binary aqueous solutions by adsorption. The adsorption process was optimized by studying the influence of solution pH (211), magnetite/carbon ratio, adsorbent dose (14 g/L), initial dye concentration (10250 mg/L), contact time and temperature (298, 308, 318 K) on the dye removal. The percentage of removed dyes increased with increasing dose of NMC, initial dye concentration and temperature, by decreasing the magnetite/carbon ratio, and the maximum value was 99.6% for AO7 and 99.4% for MB. Pseudo-second order kinetic model was fitted to the kinetic data, and adsorption isotherm analysis and thermodynamics was used to elucidate the adsorption mechanism. The optimum conditions obtained for individual adsorption were selected as starting conditions for simultaneous adsorption of both dyes. The regeneration of the sorbent was performed by using ethanol for AO7 and ethanol - NaOH solution for MB.