Work

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

Year: 2023

Type: article

Abstract: 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.

Source: Water and Environment Journal

DOI: 10.1111/wej.12898

Authors: Dheeraja Cheenakula, Svea Paulsen, Fabian Ott, Markus Grömping

Institution: FH Aachen

Language: English

Topic: Wastewater Treatment and Nitrogen Removal

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,810