In other words, this result may be due to the homogeneous distribution of active sites on the surface of prepared carbon. Several authors [9,11] showed the successful application of Langmuir isotherm compared to Freundlich and Temkin isotherms to correlate experimental adsorption data of FQs antibiotics on activated carbons. Also, Table 2 shows that the Langmuir isotherm gave maximum adsorption capacities of 131.14 and 166.99mg/g for CIP and NOR, respectively.