Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions

Water separated from crude oil and wastewater discharge from petroleum oil refineries contains significant quantity of dissolved hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs) are major toxicants in wastewater of refineries. It is difficult to treat wastewater containing PAHs due to their rec...

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Main Authors: Yaqub, A., Isa, M.H., Ajab, H., Junaid, M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19826 /
Published: Maik Nauka-Interperiodica Publishing 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021667065&doi=10.1134%2fS0965544117050140&partnerID=40&md5=b6b51e88ebb8a8d08af0c9fb6e502eac
http://eprints.utp.edu.my/19826/
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spelling utp-eprints.198262018-04-22T12:59:47Z Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions Yaqub, A. Isa, M.H. Ajab, H. Junaid, M. Water separated from crude oil and wastewater discharge from petroleum oil refineries contains significant quantity of dissolved hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs) are major toxicants in wastewater of refineries. It is difficult to treat wastewater containing PAHs due to their recalcitrant property and low solubility. Conventional techniques for the treatment of wastewater are still a concern of toxicity. Electrochemical oxidation process has been found to be a favorable for treating wastewater. Electrodes with high stability and electrocatalytic activity are important factors for a successful electrochemical oxidation of toxic organics in wastewater. In this study titanium anodes were coated with tin, antimony and iridium oxide mixture from their respective salts by thermal decomposition method. FESEM and XRD used for surface characterization of Ti/SnO2–Sb2O5–IrO2 anode. Quantification of PAHs was done using GC–MS. Results confirm the presence of respective oxides on anode surface. Their electrocatalytic capability was tested for degradation of 16 priority PAHs in aqueous solution. Results reveal the complete degradation of naphthalene, acenaphthylene, acenaphthene and fluorene without using NaCl electrolyte. While in the presence of NaCl naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene and pyrene were completely removed. About 98 of total PAHs removal was found at all initial pH values 3, 6, and 9 in the presence of electrolyte. Current study will be helpful in improving quality of petroleum industry wastewater containing PAHs. © 2017, Pleiades Publishing, Ltd. Maik Nauka-Interperiodica Publishing 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021667065&doi=10.1134%2fS0965544117050140&partnerID=40&md5=b6b51e88ebb8a8d08af0c9fb6e502eac Yaqub, A. and Isa, M.H. and Ajab, H. and Junaid, M. (2017) Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions. Petroleum Chemistry, 57 (5). pp. 457-465. http://eprints.utp.edu.my/19826/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Water separated from crude oil and wastewater discharge from petroleum oil refineries contains significant quantity of dissolved hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs) are major toxicants in wastewater of refineries. It is difficult to treat wastewater containing PAHs due to their recalcitrant property and low solubility. Conventional techniques for the treatment of wastewater are still a concern of toxicity. Electrochemical oxidation process has been found to be a favorable for treating wastewater. Electrodes with high stability and electrocatalytic activity are important factors for a successful electrochemical oxidation of toxic organics in wastewater. In this study titanium anodes were coated with tin, antimony and iridium oxide mixture from their respective salts by thermal decomposition method. FESEM and XRD used for surface characterization of Ti/SnO2–Sb2O5–IrO2 anode. Quantification of PAHs was done using GC–MS. Results confirm the presence of respective oxides on anode surface. Their electrocatalytic capability was tested for degradation of 16 priority PAHs in aqueous solution. Results reveal the complete degradation of naphthalene, acenaphthylene, acenaphthene and fluorene without using NaCl electrolyte. While in the presence of NaCl naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene and pyrene were completely removed. About 98 of total PAHs removal was found at all initial pH values 3, 6, and 9 in the presence of electrolyte. Current study will be helpful in improving quality of petroleum industry wastewater containing PAHs. © 2017, Pleiades Publishing, Ltd.
format Article
author Yaqub, A.
Isa, M.H.
Ajab, H.
Junaid, M.
spellingShingle Yaqub, A.
Isa, M.H.
Ajab, H.
Junaid, M.
Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
author_sort Yaqub, A.
title Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
title_short Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
title_full Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
title_fullStr Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
title_full_unstemmed Electrochemical degradation of petroleum hydrocarbons (PAHS) from synthetic aqueous solutions
title_sort electrochemical degradation of petroleum hydrocarbons (pahs) from synthetic aqueous solutions
publisher Maik Nauka-Interperiodica Publishing
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021667065&doi=10.1134%2fS0965544117050140&partnerID=40&md5=b6b51e88ebb8a8d08af0c9fb6e502eac
http://eprints.utp.edu.my/19826/
_version_ 1741196270163197952
score 11.62408

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