Multivariate analysis of activated sludge community in full-scale wastewater treatment plants.

ABSTRACT: We investigated changes in protozoa and metazoa community in relation to process parameters in activated sludge from four wastewater treatment plants (WWTPs) throughout the period of 1 year. Principal component analysis (PCA) showed that activated sludge from investigated treatment plants had different dominating species representatives and community composition mainly depends on individual features of the treatment plants. Redundancy analysis (RDA) showed that the temperature in bioreactors was the most relevant factor explaining changes in the microorganism community, whereas reduction rate of chemical oxygen demand (COD), biological oxygen demand (BOD₅), suspended solids (SS), and total nitrogen (TN) did not sufficiently explain the variation in protozoa and metazoan communit

SUBMITTER: Sobczyk M 

PROVIDER: S-EPMC7788020 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature