Modelling the effect of SMP production and external carbon addition on S-driven autotrophic denitrification.

ABSTRACT: The aim of this study was to develop a mathematical model to assess the effect of soluble microbial products production and external carbon source addition on the performance of a sulfur-driven autotrophic denitrification (SdAD) process. During SdAD, the growth of autotrophic biomass (AUT) was accompanied by the proliferation of heterotrophic biomass mainly consisting of heterotrophic denitrifiers (HD) and sulfate-reducing bacteria (SRB), which are able to grow on both the SMP derived from the microbial activities and on an external carbon source. The process was supposed to occur in a sequencing batch reactor to investigate the effects of the COD injection on both heterotrophic species and to enhance the production and consumption of SMP. The mathematical model was built on mass balance c

SUBMITTER: Guerriero G 

PROVIDER: S-EPMC9054823 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature