Pilot-scale implementation of mainstream anammox for municipal wastewater treatment against cold temperature.

ABSTRACT: Applying anammox to municipal wastewater treatment promises enormous energy and resource savings; however, seasonally cold conditions pose a considerable challenge, impeding its future applications towards non-tropical regions. In this study, we establish a pilot-scale wastewater treatment plant (50 m³/d) in northern China and implement the partial denitrification coupling anammox process on actual municipal wastewater. Despite seasonal cooling, the nitrogen removal efficiency remains high, ranging from 75.0 ± 4.6% at 27.8-20.0 °C to 70.4 ± 4.5% at 10-7.5 °C. This process exhibits remarkable low-temperature tolerance, achieving an in-situ anammox rate of 32.7 ± 4.7 g-N/(m³·d) at 10-7.5 °C and contributing up to 39.7 ± 6.7% to nitrogen removal. Further ¹⁵N s

SUBMITTER: Zhao Q 

PROVIDER: S-EPMC11604950 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature