A systematic comparison of the potential of microalgae-bacteria and purple phototrophic bacteria consortia for the treatment of piggery wastewater.

Bacteria / metabolism Biodegradation, Environmental Microalgae / metabolism Nitrogen / metabolism Phosphorus / metabolism Photobioreactors / microbiology Wastewater / microbiology Zinc / metabolism
Algal-bacterial processes PPB Photobioreactor Photosynthetic biodegradation Swine manure

Journal

Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523

Informations de publication

Date de publication:
Mar 2019
Historique:
received: 22 10 2018
revised: 21 12 2018
accepted: 25 12 2018
pubmed: 4 1 2019
medline: 7 9 2019
entrez: 4 1 2019
Statut: ppublish

Résumé

This study evaluated the performance of two open-photobioreactors operated with microalgae-bacteria (PBR-AB) and purple photosynthetic bacteria (PBR-PPB) consortia during the treatment of diluted (5%) piggery wastewater (PWW) at multiple hydraulic retention times (HRT). At a HRT of 10.6 days, PBR-AB provided the highest removal efficiencies of nitrogen, phosphorus and zinc (87 ± 2, 91 ± 3 and 98 ± 1%), while the highest organic carbon removals were achieved in PBR-PPB (87 ± 4%). The decrease in HRT from 10.6, to 7.6 and 4.1 day caused a gradual deterioration in organic carbon and nitrogen removal, but did not influence the removal of phosphorus and Zn in both photobioreactors. The decrease in HRT caused a severe wash-out of microalgae in PBR-AB and played a key role in the structure of bacterial population in both photobioreactors. In addition, batch biodegradation tests at multiple PWW dilutions (5, 10 and 15%) confirmed the slightly better performance of algal-bacterial systems regardless of PWW dilution.

Identifiants

DOI: 10.1016/j.biortech.2018.12.095 PMID: 30605835
pubmed: 30605835
pii: S0960-8524(18)31766-8
doi: 10.1016/j.biortech.2018.12.095
pii:
doi:

Substances chimiques

Waste Water 0
Phosphorus 27YLU75U4W
Zinc J41CSQ7QDS
Nitrogen N762921K75

Types de publication

Comparative Study Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

18-27

Informations de copyright

Copyright © 2018 Elsevier Ltd. All rights reserved.

Auteurs

Dimas García (D)

Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, Valladolid University, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Centro para la Investigación en Recursos Acuáticos de Nicaragua, CIRA/UNAN-Managua, Apdo. Postal 4598, Nicaragua.

Ignacio de Godos (I)

Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, Valladolid University, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, Dr. Mergelina, s/n, 47011 Valladolid, Spain; School of Forestry, Agronomic and Bioenergy Industry Engineering (EIFAB), Valladolid University, Campus Duques de Soria, Soria, Spain.

Christian Domínguez (C)

Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, Valladolid University, Dr. Mergelina, s/n, 47011 Valladolid, Spain.

Sara Turiel (S)

The Institute of the Environment, La Serna 58 - 24007, León, Spain.

Silvia Bolado (S)

Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, Valladolid University, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, Dr. Mergelina, s/n, 47011 Valladolid, Spain.

Raúl Muñoz (R)

Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, Valladolid University, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, Dr. Mergelina, s/n, 47011 Valladolid, Spain. Electronic address: mutora@iq.uva.es.

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