PHENOL removal in refinery wastewater using mixed oxides prepared by green synthesis
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Date
2021-09-21
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Engg. Research
Abstract
Mixed solid oxides are known for their excellent catalytic property and applications in environmental
remediation. This study presents a green-synthesis route for magnesium oxide–titanium oxide, a mixed oxide
demonstrated to possess high performance of phenol removal from hydrocarbon refinery process wastewater.
Mixed oxide (MgO-TiO2) was prepared by using the whole extract from leaves of Piliostigma Thonningii as a
reducing agent. A structural attribute of the mixed oxide was investigated using X-ray Diffractometer, High
Resolution Scanning Electronic Microscopy and Energy Dispersive X-ray. Petroleum refinery raw wastewater
having a phenol concentration of 19.961 mg/L was treated using green-synthesized mixed oxide. Adsorptive
phenols removal up to 99.5% was achieved with a dosage of 0.04 g/100 mL at a temperature of 35 °C, and a
contact time of 1.167 h. By this, the treated water meets the standard acceptable phenol concentration (0.1 mg/L)
in wastewater of hydrocarbon refinery.
Keywords: Green synthesis; Magnesium oxide; Mixed oxide; Phenol; Process wastewater; Titanium
oxide.
Description
Keywords
Citation
Green synthesis; Magnesium oxide; Mixed oxide; Phenol; Process wastewater; Titanium oxide.