Treatment of Phenol Wastewater Using Hydroxyl Radical Produced by Micro-Gap Discharge Plasma Technique

Authors: Yang, Xianli; Bai, Mindong; Han, Fen

Source: Water Environment Research, Volume 81, Number 4, April 2009 , pp. 450-455(6)

Publisher: Water Environment Federation

Buy & download fulltext article:

Price: $30.00 plus tax (Refund Policy)

Abstract:

Hydroxyl radical produced by non-equilibrium plasma, which was induced by micro-gap dielectric barrier discharge, was used for the treatment of phenol wastewater. The advantage of this method was that chemicals and catalysts were not involved when hydroxyl radical was generated from water and oxygen. A proportional efficiency of phenol removal was observed with the hydroxyl radical increasing. The removal efficiency was higher in a basic condition than in an acidic condition, which was enhanced with the pH value of the solution increasing from 3.6 to 11.2. It was rational to adjust the pH value between 9.0 and 10.0. The removal efficiency of phenol was reduced when the conductivity of the solution increased from 0 to 200 μs · cm ⁻¹; the highest was found in the solution without Na ₂CO ₃. The UV spectral absorption in the process indicated that few organic compounds with a conjugated structure were included in the treated wastewater.

Keywords: dielectric barrier discharge plasma; dielectric materials; phenol wastewater; effect; UV spectrum

Document Type: Research article

DOI: http://dx.doi.org/10.2175/106143008X357129

Affiliations: 1: Institute of Environmental Engineering, Key Laboratory of Strong Electric-Field Ionization Discharge of Liaoning Province, Dalian Maritime University, Dalian, P. R. China.

Publication date: 2009-04-01

More about this publication?

Water Environment Research� (WER�) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
Editorial Board
Information for Authors
Submit a Paper
Subscribe to this Title
Membership Information
Information for Advertisers
WEF Bookstore
ingentaconnect is not responsible for the content or availability of external websites

Treatment of Phenol Wastewater Using Hydroxyl Radical Produced by Micro-Gap Discharge Plasma Technique

Buy & download fulltext article:

Tools

Key

Text size:

Useful pages