Modifying the Polyvinyl Chloride Pipes Waste using Tannic acid as Sorbent for Crude Oil Spill Cleanup

Abstract

In the current study, waste polyvinyl chloride pipes were used as a basic material in the reactions, which are widely used Infor water supply and drainage system, where the waste pipes were prepared by cleaning them from suspended materials and grinding them into small particles, then reacting natural polymers from plant; Tannic acid .We have obtained modified polymer (PVC/Tannic acid) or PVC-Ta. The modified polymer have been grinded to obtain powder .Four techniques were used to characterize the properties of natural and prepared polymers: Fourier infrared spectroscopy (FTIR), scanning electron microscopy (SEM) , X-ray diffraction (XRD), and thermogravimetry (DTA-TG) . The study included the use modified polymers (PVC-Ta) to clean up the oil spill on the surface of the water by using the absorption phenomenon. This study included studying the effect of several conditions on the functioning of modified polymers, such as the amount of absorbent and time, for obtaining optimal conditions.
The study showed that the modified polymers possess a high efficiency in removing insoluble floating oil stains on the surface of water and dissolved petroleum materials, PVC-Ta recorded the highest percentage of insoluble oil stain removal with an oil absorption capacity of 5.55 g, an ideal weight of 0.4g and an ideal time of 4 hours. The modified polymers were recovered from the crude oil, and reused again with high efficiency.