PAC dosing to an MBBR - Effects on adsorption of micropollutants, nitrification and microbial community.

Adsorption Biofilms Bioreactors Charcoal / chemistry Microbiota / drug effects Nitrification / drug effects Powders / chemistry Waste Disposal, Fluid / instrumentation Water Pollutants, Chemical / analysis
MBBR Nitrification Organic micropollutants PAC Pharmaceuticals

Journal

The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500

Informations de publication

Date de publication:
10 Aug 2019
Historique:
received: 17 03 2019
revised: 15 04 2019
accepted: 17 04 2019
pubmed: 9 5 2019
medline: 31 7 2019
entrez: 9 5 2019
Statut: ppublish

Résumé

Two nitrifying MBBR reactors were operated in parallel, one with PAC dosing and one without, to determine the effects of PAC dosing on nitrification and micropollutant adsorption in municipal wastewater. The removal of micropollutants was evaluated for several doses of PAC and batch experiments were performed to measure adsorption kinetics and nitrification rates. The influence of PAC on the nitrifying microbial community was examined by high-throughput amplicon sequencing. Long-term operation of the pilot reactors showed that nitrification could be maintained while supplying PAC at increasing doses, as confirmed by high nitrification rates and significant abundance of nitrifying bacteria. The adsorption of organic micropollutants could be controlled by the PAC dose, and increased dosing resulted in corresponding improvements in removal efficiency. Biomass, suspended or attached to carriers, did not interfere with the adsorption of organic micropollutants. Freundlich isotherms obtained from the batch experiments were used to predict removal of organic micropollutants in the pilot reactors, suggesting that batch adsorption experiments can be used to predict micropollutant removal on a full scale. Collectively, the results show that nitrification and adsorption of organic micropollutants can be performed simultaneously in an MBBR.

Identifiants

DOI: 10.1016/j.scitotenv.2019.04.261 PMID: 31067478
pubmed: 31067478
pii: S0048-9697(19)31796-6
doi: 10.1016/j.scitotenv.2019.04.261
pii:
doi:

Substances chimiques

Powders 0
Water Pollutants, Chemical 0
Charcoal 16291-96-6

Types de publication

Journal Article

Langues

eng

Pagination

571-579

Commentaires et corrections

Type : ErratumIn

Informations de copyright

Copyright © 2019 Elsevier B.V. All rights reserved.

Auteurs

Michael Cimbritz (M)

Department of Chemical Engineering, Lund University, PO Box 124, 221 00 Lund, Sweden. Electronic address: Michael.Cimbritz@chemeng.lth.se.

Ellen Edefell (E)

Department of Chemical Engineering, Lund University, PO Box 124, 221 00 Lund, Sweden; Sweden Water Research AB, Ideon Science Park, Scheelevägen 15, 223 70 Lund, Sweden.

Elias Thörnqvist (E)

Department of Chemical Engineering, Lund University, PO Box 124, 221 00 Lund, Sweden.

Haitam El-Taliawy (H)

Department of Environmental Science, Aarhus University, Frederiksborgsvej 399, Roskilde 4000, Denmark.

Maria Ekenberg (M)

Veolia Water Technologies AB - AnoxKaldnes, Klosterängsvägen 11A, 226 47 Lund, Sweden.

Cecilia Burzio (C)

Chalmers University of Technology, Architecture and Civil Engineering, Water Environment Technology, Sven Hultins gata 6, SE-412 96 Gothenburg, Sweden.

Oskar Modin (O)

Chalmers University of Technology, Architecture and Civil Engineering, Water Environment Technology, Sven Hultins gata 6, SE-412 96 Gothenburg, Sweden.

Frank Persson (F)

Chalmers University of Technology, Architecture and Civil Engineering, Water Environment Technology, Sven Hultins gata 6, SE-412 96 Gothenburg, Sweden.

Britt-Marie Wilén (BM)

Chalmers University of Technology, Architecture and Civil Engineering, Water Environment Technology, Sven Hultins gata 6, SE-412 96 Gothenburg, Sweden.

Kai Bester (K)

Department of Environmental Science, Aarhus University, Frederiksborgsvej 399, Roskilde 4000, Denmark.

Per Falås (P)

Department of Chemical Engineering, Lund University, PO Box 124, 221 00 Lund, Sweden.

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Classifications MeSH

questionsmedicales.fr › Phénomènes chimiques › Adsorption › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Phénomènes microbiologiques › Biofilms › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Technologie, industrie et agriculture › Technologie › Biotechnologie › Bioréacteurs › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Produits chimiques inorganiques › Éléments › Carbone › Charbon de bois › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Environnement et santé publique › Environnement › Écosystème › Biodiversité › Biote › Microbiote › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Phénomènes biologiques › Phénomènes écologiques et environnementaux › Cycle de l'azote › Nitrification › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Préparations pharmaceutiques › Poudres › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Amélioration du niveau sanitaire › Génie sanitaire › Gestion des déchets › Élimination des déchets › Élimination des déchets liquides › PAC dosing to an MBBR - Effects on adsorption...
questionsmedicales.fr › Actions chimiques et utilisations › Actions toxiques › Polluants environnementaux › Polluants de l'eau › Polluants chimiques de l'eau › PAC dosing to an MBBR - Effects on adsorption...