Thermodynamic explorations into sustainable energy conversion: Learning from living systems

Method of separating a surfactant from a liquid

The present invention relates to a method of separating a surfactant from a liquid, such as a wastewater stream from an industrial laundry. In accordance with the invention, the liquid is cooled to below the Krafft temperature of the surfactant and subjected to centrifugal forces for the separation of crystalline particles that have been formed....