Method for controlling treatment of waste fluids produced during petrochemical process using incinerator

A method for treating a waste fluid produced during a petrochemical process wherein the waste fluid comprises at least one first water-based waste fluid stream and at least one second organic fluid-based waste fluid stream, wherein the method comprises the steps of: a) subjecting the at least one first water-based wastewater stream to at least one freeze concentration stage to produce a third clean water stream and a fourth concentrated water-based wastewater stream, b) subjecting the at least one second organic fluid-based wastewater stream to at least one separation stage, c) passing the fourth concentrated water-based waste water stream and the sixth concentrated organic fluid-based waste fluid stream to an incinerator and incinerating the streams in the incinerator to produce a fifth purified product stream and a sixth concentrated organic fluid-based waste fluid stream, c) passing the fourth concentrated water-based waste water stream and the sixth concentrated organic fluid-based waste fluid stream to t