Open AccessStudy of Ferrate(VI) oxidation for COD removal from wastewater
Author(s) -
Tahir Haneef,
Muhammad Raza Ul Mustafa,
Hasbi Yasin,
Safana Farooq,
Mohamed Hasnain Isa
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/442/1/012007
Subject(s) - chemistry , wastewater , degradation (telecommunications) , environmental remediation , nuclear chemistry , batch reactor , water treatment , pollutant , environmental chemistry , waste management , contamination , organic chemistry , catalysis , biology , telecommunications , ecology , computer science , engineering
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) (Fe 6+ ) 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 Fe 6+ was added to initiate the oxidation process. All experiments were performed at constant magnetic stirrer speed of 200 rpm at room temperature. The Fe 6+ dosage of 1-25 mg/l, pH 1-7, and contact time 5-90 minutes were used to determine the effectiveness of Fe 6+ for organic compounds degradation. The COD removal was increased with the increase in Fe 6+ dosage and contact time. The maximum COD removal was achieved with Fe 6+ dosage up to 15 mg/l; further any increase in Fe 6+ 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, Fe 6+ 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.