Skip to Main content Skip to Navigation
Theses

Influence de l'hydrodynamique sur les performances d'épuration d'un réacteur biologique de traitement d'effluents industriels : ecas de l'eau de cokerie

Abstract : The optimisation of the performance of the industrial waste water treatment by activated sludge, requires a good knowledge of the biological processes used. The main problem of industrial waste water treatment is the influent component toxicity. The objective of this work is to present a study about, influence of aeration basin hydrodynamic on the filtering performances of coke oven waste water treatment. The two principal pollutants are phenol and thiocyanate. The comparison of the fonctionning of two different aeration basins (1 CSTR of 20 litres and 5 CSTR’s of 4 litres each in series), shows the great influence of water Residence Time Distribution on pollutant degradation. Due to the toxic character of the influent, the higher stability is obtained in single CSTR, where the toxicity is quickly diluted. So, for this kind of industrial influent, a single CSTR, for the aeration basin, is the more capable waste water treatment plant to have a good removal pollution efficiency, and, particularly to absorb the variations of pollutant concentrations in the influent. Howewer, the study in the 5 CSTR’s in series shows that, the main pollutants (phenol, and, thiocyanate) are sequentially degraded, with an inhibition of thiocyanate degradation by residual phenol concentration. All the experimental results, have permitted to determinate kinetic parameters. At last, a new type of bio-reactor, CSTR’s in series with counter-lfow feeding, is studied. It allows, to obtained in continuous, an adapted biomass for toxic influent biodegration
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/INPL_T_1991_GREGORI_T.pdf
Complete list of metadata

https://hal.univ-lorraine.fr/tel-01752126
Contributor : Thèses Ul Connect in order to contact the contributor
Submitted on : Thursday, March 29, 2018 - 1:32:55 PM
Last modification on : Monday, May 17, 2021 - 1:32:46 PM

Identifiers

  • HAL Id : tel-01752126, version 1

Collections

Citation

Thierry Grégori. Influence de l'hydrodynamique sur les performances d'épuration d'un réacteur biologique de traitement d'effluents industriels : ecas de l'eau de cokerie. Autre. Institut National Polytechnique de Lorraine, 1991. Français. ⟨NNT : 1991INPL128N⟩. ⟨tel-01752126⟩

Share

Metrics

Record views

46