Moslehyani, A. and Mobaraki, M. and Matsuura, T. and Ismail, A. F. and Othman, M. H. D. and Chowdhury, M. N. K. (2016) Novel green hybrid processes for oily water photooxidation and purification from merchant ship. Desalination, 391 . pp. 98-104. ISSN 0011-9164
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Abstract
Two hybrid photooxidation systems consisting of two different reactors; photocatalytic reactor-ultrafiltration (PR-UF) and photocatalytic membrane reactor (PMR) have been investigated and compared for photolysis and separation of oily water. In both, oily water was irradiated by ultraviolet (UV) light. In PR, UV irradiation was made on the TiO2 photocatalyst suspended in oily water, followed by ultrafiltration (UF) to remove TiO2 particles and hydrocarbon residues. On the other hand, TiO2 was immobilized on the halloysite nanotube (HNT) and embedded in the UF membrane in PMR. In both systems, hydrocarbon concentration, chemical oxygen demand (COD), total dissolved solid (TDS), and hydrocarbon concentration were measured at each step of photooxydation and filtration. In UF, membrane flux, reduction in solute concentration, flux decline and flux recovery by backwashing were investigated. The experimental results showed that the reduction in TOC by PR-UF was ~10% higher than PMR. On the other hand, reduction in hydrocarbon concentration, COD and TDS was higher for PMR. The TiO2 concentration in UF permeate was 8 ppm and 0.2 ppm, respectively, for PR-UF and PMR.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bioreactors, Chemical oxygen demand, Dissolved oxygen, Filtration, Hydrocarbon refining, Hydrocarbons, Kaolinite, Photocatalysts, Photolysis, Photooxidation, Ships, Titanium dioxide, Ultrafiltration, Yarn, Halloysite nanotubes, Oily water, Photo-catalytic, Photocatalytic membrane reactors, Photocatalytic reactors, PMR, Solute concentrations, Total dissolved solids, Irradiation, catalyst, membrane, merchant ship, photolysis, photooxidation, purification, reaction kinetics, water treatment |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 72259 |
| Deposited By: | Fazli Masari |
| Deposited On: | 22 Nov 2017 12:07 |
| Last Modified: | 22 Nov 2017 12:07 |
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