One of the big industrial challenge is the purification of wastewaters produced during the industrial operation and may cause numerous environmental pollutions and biological dangers together with making heavy costs for both the industry and the country. Nowadays, providing methods of controlling and cleansing these wastewaters seems to be an essential issue. Purification of the most oil/water contaminations is currently available by using new technologies based on Nano science. In this research, it is aimed to apply nano-fibrous filtering layers based on creative methods in order to separate oil/water byproducts from polyester spinning industry in which the deuterium oil type VP-1 is involved for keeping warm the polymer-melt in melt-spinning process. During the investigation, TiO2 and SiO2 nanoparticles were electrospun on the PVDF substrate considering four different nanoparticles compositions. Based on the layers hydrophobic and oleophilic properties, it was concluded that the larger water angles as well as using a specific amount of the two nanoparticles would provide a better result. Since the used oil is volatile, the efficiency was measured on average; meaning that, the results would be different in several replicates. However, Key words: Electrospinning; Nanoparticles; Thermal oil (diathermia); Polyester spinning; Oil/water