|
Titre :
|
An on-line respirographic biosensor for the characterization of load and toxicity of wastewaters
|
|
Auteurs :
|
P. Vanrolleghem ;
Z. Kong ;
G. Rombouts ;
W. Verstraete
|
|
Type de document :
|
article/chapitre/communication
|
|
Année de publication :
|
1994
|
|
Format :
|
p. 321-333
|
|
Langues:
|
= Anglais
|
|
Catégories :
|
QUALITE DE L'EAU
|
|
Mots-clés:
|
EAU USEE
;
CHARGE POLLUANTE
;
RESPIROMETRIE
;
TOXICITE
;
TRAITEMENT DE L'EAU RESIDUAIRE
|
|
Résumé :
|
A respirographic biosensor is presented that is capable of monitoring the waste load and potential toxicity of wastewaters, both off-line in a laboratory or on-line at the wastewater treatment plant. The principles of the sensors' operation have been developed and implications of the design choices evaluated. Short term BOD values were obtained every 30 min. The linear dynamic range spanned concentrations differing by a factor of 5000. This range could be expanded by a factor of 10 by adjusting the aeration rate of the bioreactor in the sensor. The response time for toxicity detection was approximately 1 h. The use in the sensor of activated sludge from the plant concerned ensured relevant toxicity information was obtained. To check the condition of the sludge, an independent respiration measurement is proposed.
|
|
Source :
|
Journal of chemical technology and biotechnology, vol.59
|
