Long-term onsite monitoring of a sewage sludge drying pan finds methane emissions consistent with IPCC default emission factor.

ABSTRACT: As the wastewater sector moves towards achieving net zero greenhouse gas (GHG) emissions, quantifying and understanding fugitive emissions from various sewage treatment steps is crucial for developing effective GHG abatement strategies. Methane (CH₄) emissions from a sludge drying pan (SDP) were measured at a wastewater treatment plant in Australia for more than a year, using a micrometeorological technique paired with open-path lasers. The emission rate was tightly associated with sludge additions, climatology, and operational processes. The mean emission rate during the 90 weeks after initial sludge addition was 2.3 (± 0.8) g m^-2 d^-1, with cumulative emissions of approximately 32 t of CH₄. A dynamic temporal pattern of emissions was observed, h

SUBMITTER: Bai M 

PROVIDER: S-EPMC10236450 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature