Biological Activated Sludge from Wastewater Treatment Plant before and during the COVID-19 Pandemic.

ABSTRACT: The COVID-19 pandemic and the related measures brought a change in daily life that affected the characteristics of the municipal wastewater and further, of the biological activated sludge. The activated sludge process is the most widely used biological wastewater treatment process in developed areas. In this paper, we aim to show the situation of specific investigations concerning the variation of the physicochemical parameters and biological composition of the activated sludge from one conventional wastewater treatment plant from a metropolitan area. The investigations were carried out for three years: 2019, 2020 and 2021. The results showed the most representative taxa of microorganisms: Microtrix, Aspidisca cicada, Vorticella convallaria, Ciliata free of the

SUBMITTER: Roman MD 

PROVIDER: S-EPMC9517470 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature