Efficiency of Sidestream Nitritation for Modern Two-Stage Activated Sludge Plants.

ABSTRACT: The operational costs of wastewater treatment plants (WWTPs) are mainly driven by electric power consumption, making the energy-efficient operation an all-time present target for engineers and operators. A well known approach to reduce the demand for purchased electricity is the operation of an anaerobic sludge stabilisation process. Although anaerobic digesters make it possible to recover large quantities of energy-rich methane gas, additional strategies are required to handle the increased internal return flow of nitrogen, which arises with the sludge dewatering effluent (SDE). SDE treatment increases the oxygen demand and in turn the energy required for aeration. In this study, different SDE treatment processes were compared with regard to the treatment in mainstream, sidestream nitrita

SUBMITTER: Baumgartner T 

PROVIDER: S-EPMC9564472 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature