Experimental study on non-thermal plasma to restrain evaporation fouling

The scale inhibition effect of non-thermal plasma to evaporation and concentration in the process of viscous oil wastewater was studied, the influence of discharge frequency of non-thermal plasma and evaporation load change on the fouling resistance was analyzed, and scaling was analyzed by SEM and XRD. Experimental results show that evaporation fouling of viscous oil waste water with non-thermal plasma pretreatment before evaporating can effectively reduce the fouling thermal resistance in the heating process, and its biggest decline reaches 35.4%. Viscous oil wastewater after non-thermal plasma pretreatment, whose evaporation scaling component is not very different from untreated, but the crystal type of scaling is significantly different. It further confirms that non-thermal plasma satisfies the general principles of physical anti-scaling.