The real textile wastewater chemistry is completely differentfrom the simulated dye-containing solution due to the combina-tion of various dyes, chemicals and suspended particles. Therefore,the optimum amount of coagulant and pH for the treatment pro-cess would be different. It could be seen that a relatively good colorand COD removal efficiency was obtained by using a low amountof O. basilicum mucilage for the treatment of real textile wastew-ater. Furthermore, the fact that the real wastewater consists of a