Evaluating the efficiency of different natural clay sediments for the removal of chlortetracycline from aqueous solutions.

Natural clay sediments were collected from ten different localities in Saudi Arabia (S-1 from eastern, S-2 to S-4 from middle and S-5 to S-10 from western regions), characterized and evaluated for their efficiency towards chlortetracycline (CTC) removal from aqueous solutions. Sediment S-4 exhibited highest surface area (288.5 m g), followed by S-5, S-9, and S-1 (252.