Document Detail


Anodic oxidation with doped diamond electrodes: a new advanced oxidation process.
MedLine Citation:
PMID:  14573343     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Boron-doped diamond anodes allow to directly produce OH* radicals from water electrolysis with very high current efficiencies. This has been explained by the very high overvoltage for oxygen production and many other anodic electrode processes on diamond anodes. Additionally, the boron-doped diamond electrodes exhibit a high mechanical and chemical stability. Anodic oxidation with diamond anodes is a new advanced oxidation process (AOP) with many advantages compared to other known chemical and photochemical AOPs. The present work reports on the use of diamond anodes for the chemical oxygen demand (COD) removal from several industrial wastewaters and from two synthetic wastewaters with malic acid and ethylenediaminetetraacetic (EDTA) acid. Current efficiencies for the COD removal between 85 and 100% have been found. The formation and subsequent removal of by-products of the COD oxidation has been investigated for the first time. Economical considerations of this new AOP are included.
Authors:
Alexander Kraft; Manuela Stadelmann; Manfred Blaschke
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of hazardous materials     Volume:  103     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-10-23     Completed Date:  2004-03-18     Revised Date:  2006-06-14    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  247-61     Citation Subset:  IM    
Affiliation:
Gesimat GmbH, Koepenicker Str. 325, 12555 Berlin, Germany. alexander.kraft@gesimat.de
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MeSH Terms
Descriptor/Qualifier:
Boron / chemistry
Diamond / chemistry*
Electrodes*
Models, Chemical
Oxidation-Reduction
Water Pollutants, Chemical*
Water Purification / methods*
Chemical
Reg. No./Substance:
0/Water Pollutants, Chemical; 7440-42-8/Boron; 7782-40-3/Diamond

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