eprintid: 12541
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/25/41
datestamp: 2023-11-10 03:27:06
lastmod: 2023-11-10 03:27:06
status_changed: 2023-11-10 01:48:57
type: article
metadata_visibility: show
creators_name: Haneef, T.
creators_name: Ul Mustafa, M.R.
creators_name: Yusof, K.W.
creators_name: Isa, M.H.
creators_name: Bashir, M.J.K.
creators_name: Ahmad, M.
creators_name: Zafar, M.
title: Removal of polycyclic aromatic hydrocarbons (PAHs) from produced water by Ferrate (VI) oxidation
ispublished: pub
keywords: Chemical oxygen demand; Mineral oils; Offshore oil well production; Oxidation; Produced Water, Central composite designs; Coefficient of determination; Efficient treatment; Independent variables; Offshore installations; Operating parameters; Polycyclic aromatic hydrocarbons (PAHS); Response surface methodology, Polycyclic aromatic hydrocarbons, benzene; chemical oxygen demand; design; experimental study; extraction method; oxidation; PAH; parameterization; pollutant removal; response surface methodology, Central Department
note: cited By 17
abstract: Polycyclic aromatic hydrocarbons (PAHs) are mutagenic and carcinogenic contaminants made up of fused benzene rings. Their presence has been reported in several wastewater streams, including produced water (PW), which is the wastewater obtained during oil and gas extraction from onshore or offshore installations. In this study, ferrate (VI) oxidation was used for the first time for the treatment of 15 PAHs, with the total concentration of 1249.11 µg/L in the produced water sample. The operating parameters viz., ferrate (VI) dosage, pH, and contact time were optimized for maximum removal of PAHs and chemical oxygen demand (COD). Central composite design (CCD) based on response surface methodology (RSM) was used for optimization and modeling to evaluate the optimal values of operating parameters. PAH and COD removal percentages were selected as the dependent variables. The study showed that 89.73 of PAHs and 73.41 of COD were removed from PW at the optimal conditions of independent variables, i.e., ferrate (VI) concentration (19.35 mg/L), pH (7.1), and contact time (68.34 min). The high values of the coefficient of determination (R2) for PAH (96.50) and COD (98.05) removals show the accuracy and the suitability of the models. The results showed that ferrate (VI) oxidation was an efficient treatment method for the successful removal of PAHs and COD from PW. The study also revealed that RSM is an effective tool for the optimization of operating variables, which could significantly help to reduce the time and cost of experimentation. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
date: 2020
publisher: MDPI AG
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096363988&doi=10.3390%2fw12113132&partnerID=40&md5=a6075bcff8e0f088c20b515b6ded047f
id_number: 10.3390/w12113132
full_text_status: none
publication: Water (Switzerland)
volume: 12
number: 11
pagerange: 1-17
refereed: TRUE
issn: 20734441
citation:   Haneef, T. and Ul Mustafa, M.R. and Yusof, K.W. and Isa, M.H. and Bashir, M.J.K. and Ahmad, M. and Zafar, M.  (2020) Removal of polycyclic aromatic hydrocarbons (PAHs) from produced water by Ferrate (VI) oxidation.  Water (Switzerland), 12 (11).  pp. 1-17.  ISSN 20734441