Study of Ferrate(VI) oxidation for COD removal from wastewater

Produced water (PW) is the abundant by-product of oil and gas industries. It contains several organic pollutants and needs proper treatment before its discharge. This study investigated the effectiveness of Ferrate (VI) (Fe6+) oxidation for remediation of the organic compounds produced water. A seri...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-01, Vol.442 (1), p.12007
Main Authors: Haneef, Tahir, Raza Ul Mustafa, Muhammad, Farhan Yasin, H.M, Farooq, Shahzeb, Hasnain Isa, Mohamed
Format: Article
Language:English
Subjects:
Aluminum
Chemical oxygen demand
COD removal
Degradation
Dosage
Ferrate (VI)
Metal foils
Oil and gas industry
Organic compounds
Oxidation
Oxidation process
pH effects
Pollutants
Produced water
Room temperature
Wastewater
Wastewater treatment
Water analysis
Water sampling
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Summary:Produced water (PW) is the abundant by-product of oil and gas industries. It contains several organic pollutants and needs proper treatment before its discharge. This study investigated the effectiveness of Ferrate (VI) (Fe6+) oxidation for remediation of the organic compounds produced water. A series of batch experiments were performed by ferrate oxidation method. A glass beaker of 1000 ml as reactor covered with aluminum foil was used to protect from sunlight. Produced water sample of 300 ml and a pre-decided amount of Fe6+ was added to initiate the oxidation process. All experiments were performed at constant magnetic stirrer speed of 200 rpm at room temperature. The Fe6+ dosage of 1-25 mg/l, pH 1-7, and contact time 5-90 minutes were used to determine the effectiveness of Fe6+ for organic compounds degradation. The COD removal was increased with the increase in Fe6+ dosage and contact time. The maximum COD removal was achieved with Fe6+ dosage up to 15 mg/l; further any increase in Fe6+ dosage decreased the COD removal. The same trend was observed for pH, COD removal was increased until pH 5 beyond that COD removal was decreased. Maximum 55% of COD removal was attained under optimum conditions such as pH, Fe6+ dosage, and contact time were 5, 15mg/l and 50mins respectively. The results indicate that Ferrate (VI) oxidation is a promising method for the degradation of organic compounds in produced water.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/442/1/012007