Zolfaghari, Mehdi; Drogui, Patrick 
ORCID: https://orcid.org/0000-0002-3802-2729; Brar, Satinder Kaur; Buelna, Gerardo et Dubé, Rino
(2016).
Effect of bioavailability on the fate of hydrophobic organic compounds and metal in treatment of young landfill leachate by membrane bioreactor.
Chemosphere
, vol. 161
.
pp. 390-399.
DOI: 10.1016/j.chemosphere.2016.07.021.
Résumé
Complex dissolved organic matter (DOM) present in landfill leachate provides reliable media for adsorption of highly hydrophobic contaminants, such as Di 2-ethyl hexyl phthalate (DEHP). In this research, the feasibility of submerged membrane bioreactor (SMBR) for treatment of landfill leachate (LFL) was determined. Later, the operating conditions were optimized for removal of DEHP, COD, NH₄⁺ and PO₄³⁻, and finally the effect of bioavailability was examined by introduction of different concentrations of humic acid into the influent. The result revealed that presence of complex agglomerated organic compounds increased the removal efficiency of DEHP and COD, even though DEHP biodegradation rate in sludge dramatically decreased (from 58.8% to 12.8%). MBR retention of different metals in the absence and in the presence of recalcitrant DOM was also studied. Like DEHP, ternary interaction between metals, DOM, and sludge play a pivotal role in their removal efficiency and their concentration in sludge.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | landfill leachate; Di 2-ethyl hexyl phthalate; heavy metals; submerged membrane bioreactor; biodegradation; bioavailability |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 03 mai 2018 18:43 |
| Dernière modification: | 23 févr. 2022 19:21 |
| URI: | https://espace.inrs.ca/id/eprint/4714 |
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