Document Type : Original Article
Authors
1
Production Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
2
Assiut and new valley company for water and wastewater fax No: 088229347, Assiut, Egypt
3
Chemical Engineering Department, Faculty of Engineering, Beni-Suef University, Beni-Suef, Egypt
4
Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Aljouf, KSA
5
Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
6
Petroleum Applications Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
7
Petrochemicals Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
Abstract
This paper studies the removal of ethyl naphthalene as one of the polyaromatic hydrocarbon pollutants (PAHs) from the produced water. Magnetic super hydrophobic monolithic core-shell polystyrene (MSHMCSh@PS) was prepared using a simple and low-cost (facile in situ bulk radical polymerization) method, in the presence of 2-azobisisobutyronitrile as an initiator for ethyl naphthalene adsorption. The characterization of the MSHMCSh@PS was performed using FT-IR, TGA, SEM, TEM, and VSM. The possibility of PAHs adsorption from produced water was performed using the continuous adsorption study in a fixed-bed column. The effects of flow rate, concentration, and bed height were investigated. The results showed that the relationship between adsorption capacity with both inlet concentration and bed depth is a direct one, while the relationship between adsorption capacity and flow rate is an inverse relationship. The best column parameters were found at 2.5 ml/min flowing rate, 9 cm bed height, and 50 mg/L concentration. The experimental column results and the relationship between operating boundaries were analyzed according to Yoon-Nelson and Thomas models. The results indicated that the breakthrough curve follows the Yoon-Nelson model. The practical application results showed that the PAHs were adsorbed from the produced water using the prepared absorbent MSHMCSh@PS, which was distinguished by its superior ability.
Keywords
Main Subjects
)
View on SCiNiTO