Effect of ammonium, electron donor and sulphate transient feeding conditions on sulphidogenesis in sequencing batch bioreactors

Autor: Gaëlle Santa-Catalina, Eldon R. Rene, Nicolas Bernet, Frédéric Habouzit, Luis C. Reyes-Alvarado, Piet N.L. Lens, Renaud Escudié
Přispěvatelé: Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), United Nations Educational, Scientific and Cultural Organization (UNESCO), Rene, Eldon R.
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0106 biological sciences
Environmental Engineering
[SDV]Life Sciences [q-bio]
sequencing batch reactor
sulphate reduction
Electrons
Bioengineering
Sequencing batch reactor
Electron donor
010501 environmental sciences
01 natural sciences
chemistry.chemical_compound
Bioreactors
010608 biotechnology
Ammonium Compounds
Bioreactor
sulphidogenesis
wastewater treatment
transient feeding conditions
feast-famine
Ammonium
Kinetic constant
mode d'alimentation
eaux usées
Waste Management and Disposal
0105 earth and related environmental sciences
Chromatography
Sulfates
Renewable Energy
Sustainability and the Environment
Chemistry
réacteur sbr
High loading
General Medicine
réacteur séquentiel discontinu
traitement biologique
Sulphate reduction
[SDE]Environmental Sciences
Transient (oscillation)
réduction des sulfates
Zdroj: Bioresource Technology
Bioresource Technology, Elsevier, 2019, 276, pp.288-299. ⟨10.1016/j.biortech.2018.12.087⟩
Bioresource Technology (276), 288-299. (2019)
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2018.12.087⟩
Popis: This work aimed to study the effect of transient feeding conditions on sulphidogenesis in 8 sequencing batch bioreactors (SBR). SBR L1 and H1, operated under steady-state conditions were used as the control reactors, while four SBR were tested under transient feeding conditions using moderate (L2 and L3, feast and famine: 2.5 and 0 g SO42−·L−1) and high (H2 and H3, feast and famine: 15 and 0 g SO42−·L−1) loads. The sulphate removal efficiency (RE) was ≥90% in SBR L2, L3 and H1. The NH4+ famine conditions resulted in a higher sulphate RE (≥40% H3) compared to feast conditions (≤20% H2). Besides, the sulphidogenic first-order kinetic constant was 4% larger and the use of electron donor was 16.6% more efficient under NH4+ famine conditions. Sulphidogenesis is robust to transient feeding conditions, but not when applying high loading rates (SBR H2 and H3).
Databáze: OpenAIRE
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