Document Type : Research Paper
Authors
1 Petroleum Technology Department, University of Technology
2 Department of Chemistry College of Science, University of Al-Mustansiriyah
Abstract
A papyrus reed, as a type of unusable farming waste, was used as a
kind of low-cost biosorbent for the elimination a crude oil from produced water
that was produced in an Al-Ahdab field, Iraq, in a batch stirred operation
mode. Fourier transform infrared spectroscopy (FTIR) and scanning electron
microscope (SEM) were used to characterize the biosorbent before and after
adsorption. Batch tests were employed as a function of the contact time,
adsorbent dose, and the pH of the solution. The experimental results show at
increases the amount adsorbent dosage, pH and contact times, the removal
efficiencies were increases and optimum condition was obtained at pH value
equal to 9, 5000 ppm adsorbent dose and 45 minutes contact time for removal
about 94.5% of crude oil, for test sample initial crude oil concentration 257.06
ppm. Therefore it can be disposed of without environmental damage. The better
fitting for equilibrium sorption process data was satisfactorily by the
Freundlich isotherm model with (R2= 0.9665) and the adsorption kinetics best
described by a pseudo-second-order kinetic model.
Main Subjects
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