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Integrated electroenzymatic and electrochemical treatment of petrochemical wastewater using a pilot scale membraneless system

Paper ID Volume ID Publish Year Pages File Format Full-Text
35751 45105 2008 6 PDF Available
Title
Integrated electroenzymatic and electrochemical treatment of petrochemical wastewater using a pilot scale membraneless system
Abstract

A pilot scale membraneless system using immobilized peroxidase on porous Celite beads was constructed for the catalytic oxidation of wastewater released from a petrochemical plant. This system was integrated with the electroenzymatic process for enzymatic catalysis using immobilized peroxidase and the electrochemical process for indirect bulk oxidation using generated hypochlorite (ClO−). As a result, the chemical oxygen demand (COD) removal efficiency of integrated system was two times higher than those of the discrete processes with lower power consumption. Thus, by using the integrated system, aromatic compounds in wastewater were effectively degraded and converted into aliphatic organic compounds. During a 30-day operation, 85–93% of the removal efficiency was maintained with 1.99 W g−1 COD of power consumption without severe deactivation of immobilized peroxidase.

Keywords
Integrated electroenzymatic and electrochemical process; Formation of hydrogen peroxide (H2O2); Generated hypochlorite (OCl−); Membraneless system; Peroxidase; Petrochemical wastewater
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Integrated electroenzymatic and electrochemical treatment of petrochemical wastewater using a pilot scale membraneless system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 43, Issue 12, December 2008, Pages 1371–1376
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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Any Questions? feel free to contact us