Étude de l’élimination de la DCO réfractaire dans les eaux usées pharmaceutiques

Étude de l’élimination de la DCO réfractaire dans les eaux usées pharmaceutiques

Hardikbhai Gamdha / Mukeshkumar Mori / Suresh Chovatiya

65,43 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
ISBN:
9786209235870
65,43 €
IVA incluido
Disponible

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Cette étude porte sur le traitement des eaux usées pharmaceutiques contenant des composés récalcitrants et non biodégradables qui ne sont pas traités de manière adéquate par les méthodes de traitement conventionnelles. Les objectifs comprennent l’amélioration de la biodégradabilité des eaux usées et la comparaison de l’efficacité de diverses approches de traitement avancées. Des échantillons d’eaux usées non traitées ont été prélevés dans une unité de fabrication de produits pharmaceutiques intermédiaires. Une caractérisation initiale, comprenant une mesure du pH et une évaluation de la toxicité aiguë, a été réalisée. Le traitement primaire comprenait la neutralisation, la coagulation, la floculation et la décantation. Des procédés d’oxydation avancés (POA) tels que H₂O₂, TiO₂/H₂O₂, Fe²⁺/H₂O₂ (Fenton), HCO₃-, et Fe²⁺/H₂O₂/O₃ (Fentozone) ont été appliqués.Les analyses post-traitement ont révélé des améliorations variables de la biodégradabilité (rapport DBO/DCO). Le procédé Fentozone s’est avéré le plus efficace, avec une amélioration de la DBO/DCO de 0,43 après 60 minutes. Les résultats comparatifs ont montré des améliorations modérées avec TiO₂/H₂O₂ (0,32) et Fe²⁺/H₂O₂ (0,30), tandis que H₂O₂ seul a obtenu une amélioration marginale de 0,26. Aucune amélioration n’a été observée avec le traitement HCO₃.

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