Removal oil from produced water by using adsorption method with adsorbent a Papyrus reeds

Abstract

A papyrus reed, as a type of unusable farming waste, was used as akind of low-cost biosorbent for the elimination a crude oil from produced waterthat was produced in an Al-Ahdab field, Iraq, in a batch stirred operationmode. Fourier transform infrared spectroscopy (FTIR) and scanning electronmicroscope (SEM) were used to characterize the biosorbent before and afteradsorption. Batch tests were employed as a function of the contact time,adsorbent dose, and the pH of the solution. The experimental results show atincreases the amount adsorbent dosage, pH and contact times, the removalefficiencies were increases and optimum condition was obtained at pH valueequal to 9, 5000 ppm adsorbent dose and 45 minutes contact time for removalabout 94.5% of crude oil, for test sample initial crude oil concentration 257.06ppm. Therefore it can be disposed of without environmental damage. The betterfitting for equilibrium sorption process data was satisfactorily by theFreundlich isotherm model with (R2= 0.9665) and the adsorption kinetics bestdescribed by a pseudo-second-order kinetic model.