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Operational window of a deammonifying sludge for mainstream application in a municipal wastewater treatment plant

  • The present work aimed to study the mainstream feasibility of the deammonifying sludge of side stream of municipal wastewater treatment plant (MWWTP) in Kaster, Germany. For this purpose, the deammonifying sludge available at the side stream was investigated for nitrogen (N) removal with respect to the operational factors temperature (15–30°C), pH value (6.0–8.0) and chemical oxygen demand (COD)/N ratio (≤1.5–6.0). The highest and lowest N-removal rates of 0.13 and 0.045 kg/(m³ d) are achieved at 30 and 15°C, respectively. Different conditions of pH and COD/N ratios in the SBRs of Partial nitritation/anammox (PN/A) significantly influenced both the metabolic processes and associated N-removal rates. The scientific insights gained from the current work signifies the possibility of mainstream PN/A at WWTPs. The current study forms a solid basis of operational window for the upcoming semi-technical trails to be conducted prior to the full-scale mainstream PN/A at WWTP Kaster and WWTPs globally.

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Author:Dheeraja CheenakulaORCiD, Svea Paulsen, Fabian Ott, Markus Grömping
Parent Title (English):Water and Environment Journal
Place of publication:Chichester
Document Type:Article
Year of Completion:2023
Date of first Publication:2023/09/01
Date of the Publication (Server):2023/09/04
Tag:Anammox; Mainstream; Nitrogen removal; Partial nitritation; Wastewater
Issue:Early View
First Page:1
Last Page:12
Corresponding author: Dheeraja Cheenakula
Institutes:FH Aachen / Fachbereich Bauingenieurwesen
FH Aachen / Nowum-Energy
collections:Verlag / Wiley
Open Access / Hybrid
Licence (German):License LogoCreative Commons - Namensnennung