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Wet oxidation of activated sludge

Lookup NU author(s): David Elliott

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Abstract

This paper describes the potential for wet oxidation (WO) processes to treat activated sludge under stoichiometric oxygen conditions. Tests were carried out at temperatures ranging from 200 to 300 °C at retention times of 10, 30 and 60 min. Temperature proved to be the most significant parameter, followed by retention time and oxygen overpressure. A considerable reduction in sludge volume and COD was generally obtained, producing an effluent liquor with a high oxygen demand and relatively stable residual solids. Simplified empirical equations were developed from the experimental data to describe the transformation pattern of the organic and inorganic components of the activated sludge in a WO environment at different temperatures.


Publication metadata

Author(s): Khan Y, Anderson GK, Elliott DJ

Publication type: Article

Publication status: Published

Journal: Water Research

Year: 1999

Volume: 33

Issue: 7

Pages: 1681-1687

Print publication date: 01/05/1999

ISSN (print): 0043-1354

ISSN (electronic): 1879-2448

Publisher: IWA Publishing

URL: http://dx.doi.org/10.1016/S0043-1354(98)00387-X

DOI: 10.1016/S0043-1354(98)00387-X


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