Accéder directement au contenu Accéder directement à la navigation
Communication dans un congrès

Formation of emerging disinfection byproducts by chlorination/chloramination of seawater impacted by algal organic matter

Abstract : The aim of this work was to study the formation of haloacetamides (HAcAms) and other DBPs during chlorination and chloramination of algal organic matter (AlOM). The HAcAms formation potentials of different precursors (amino acids, simulated algal blooms grown in the Red Sea) were evaluated. Experiments with simulated algal blooms were conducted in the presence of bromide ion (synthetic seawater containing 800 μg/L Br-) to assess the formation of brominated analogues of HAcAms in conditions close to the disinfection of real seawater. Chlorination produced more HAcAms than chloramination from real algae (Synecococcus), thus indicating that the nitrogen of HAcAms comes predominantly from DON through the decarboxylation of amino acids rather than from NH2Cl. Dibrominated species of DBPs (i.e., DBAcAm, DBAA, DBAN) were the dominant species formed by both chlorination and chloramination of algal blooms samples. Chloramination of the amino acid asparagine produced an important amount of DCAcAm as compared to chlorination, indicating the existence of a specific reaction pathway.
Type de document :
Communication dans un congrès
Liste complète des métadonnées

https://hal-enpc.archives-ouvertes.fr/hal-01211608
Contributeur : Julien Le Roux <>
Soumis le : lundi 5 octobre 2015 - 14:22:05
Dernière modification le : mercredi 8 janvier 2020 - 15:28:02

Lien texte intégral

Identifiants

Citation

Julien Le Roux, Maolida Nihemaiti, Jean-Philippe Croué. Formation of emerging disinfection byproducts by chlorination/chloramination of seawater impacted by algal organic matter. International Conference on Desalination, Environmental and Marine Outfall Systems (ICDEMOS), Apr 2014, Muscat, Oman. ⟨10.1007/978-3-319-19123-2⟩. ⟨hal-01211608⟩

Partager

Métriques

Consultations de la notice

167