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Aerobic Bio-oxidation with Ozonation for Recalcitrant Wastewater Treatment
-
Inna Kamenev
,
Andres Viiroja
Published/Copyright:
November 30, 2016
Abstract
The aim of the present research was to find a combination of biological and chemical oxidation processes that improves the purification efficiency of recalcitrant wastewater treatment at reduced ozone consumption. The following wastewater treatment processes were experimentally studied: conventional aerobic biooxidation, post-ozonation of biologically treated wastewater, a combined process - aerobic bio-oxidation with ozonation in a re-circulation system - and aerobic bio-oxidation with direct introduction of ozone-containing water into a bioreactor. A synthetic landfill leachate corresponding in its composition to leachate of young landfills, thermo-mechanical pulping water, and phenolic effluent from the Estonian oil shale industry were used as wastewaters. It was established that compared with conventional aerobic bio-oxidation, the combined process enables an improvement in purification efficiency even at relatively low ozone doses (10 to 60 mgO3L-1).
Keywords: Ozonation; Aerobic Bio-oxidation; Combined Process; Thermo-mechanical Pulping Water; Phenolic Wastewater; Landfill Leachate
Received: 2008-3-14
Revised: 2008-5-20
Accepted: 2008-5-23
Published Online: 2016-11-30
Published in Print: 2008-7-1
© 2016 by Walter de Gruyter Berlin/Boston
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Keywords for this article
Ozonation;
Aerobic Bio-oxidation;
Combined Process;
Thermo-mechanical Pulping Water;
Phenolic Wastewater;
Landfill Leachate
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