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2007•Applied Chemistry for EngineeringRequires access

Destruction of Acetic Acid Using Various Combinations of Oxidants by an Advanced Oxidation Processes

Tae Ouk Kwon, Bo Bae Park, Jang Soo Moon, Il Shik Moon

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Abstract

The destruction of synthetic acetic acid wastewater was carried out using UV, O3, H2O2, Fe2+ oxidants in various combinations by the advanced oxidation processes. UV/H2O2, UV/H2O2/Fe2+, O3, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes were tested. UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes shows the most effective destruction efficiency at low pH (3.5) condition of wastewater, but UV/H2O2 and O3 processes were observed less than 20%. Destruction efficiency was gradually increased with the reaction time in the O3/H2O2 and UV/O3/H2O2 processes, in case of the UV/H2O2/Fe2+ and UV/O3/H2O2/Fe2+ processes shows rapid increasing of destruction efficiency within 90 min, then slightly decreasing with time. The destruction efficiencies of UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2 and UV/O3/H2O2/Fe2+ processes were observed 55, 66, 66 and 64%, respectively.

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What this paper is about

The destruction of synthetic acetic acid wastewater was carried out using UV, O3, H2O2, Fe2+ oxidants in various combinations by the advanced oxidation processes. UV/H2O2, UV/H2O2/Fe2+, O3, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes were tested. UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes shows the most effective destruction efficiency at low pH (3.5) condition of wastewater, but UV/H2O2 and O3 processes were observed less than 20%. Destruction efficiency was gradually increased with the reaction time in the O3/H2O2 and UV/O3/H2O2 processes, in case of the UV/H2O2/Fe2+ and UV/O3/H2O2/Fe2+ processes shows rapid increasing of destruction efficiency within 90 min, then slightly decreasing with time. The destruction efficiencies of UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2 and UV/O3/H2O2/Fe2+ processes were observed 55, 66, 66 and 64%, respectively.

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Available abstract

The destruction of synthetic acetic acid wastewater was carried out using UV, O3, H2O2, Fe2+ oxidants in various combinations by the advanced oxidation processes. UV/H2O2, UV/H2O2/Fe2+, O3, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes were tested. UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes shows the most effective destruction efficiency at low pH (3.5) condition of wastewater, but UV/H2O2 and O3 processes were observed less than 20%. Destruction efficiency was gradually increased with the reaction time in the O3/H2O2 and UV/O3/H2O2 processes, in case of the UV/H2O2/Fe2+ and UV/O3/H2O2/Fe2+ processes shows rapid increasing of destruction efficiency within 90 min, then slightly decreasing with time. The destruction efficiencies of UV/H2O2/Fe2+, O3/H2O2, UV/O3/H2O2 and UV/O3/H2O2/Fe2+ processes were observed 55, 66, 66 and 64%, respectively.

Key concepts: Acetic acid, Chemistry, Hydrogen peroxide, Ozone, Ultraviolet, Wastewater, Photochemistry, Nuclear chemistry

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