Enrichment of Autotrophic Denitrifiers From Anaerobic Sludge Using Sulfurous Electron Donors.

ABSTRACT: This study compared the rates and microbial community development in batch bioassays on autotrophic denitrification using elemental sulfur (S⁰), pyrite (FeS₂), thiosulfate (S₂O₃ ^2-), and sulfide (S^2-) as electron donor. The performance of two inocula was compared: digested sludge (DS) from a wastewater treatment plant of a dairy industry and anaerobic granular sludge (GS) from a UASB reactor treating dairy wastewater. All electron donors supported the development of a microbial community with predominance of autotrophic denitrifiers during the enrichments, except for sulfide. For the first time, pyrite revealed to be a suitable substrate for the growth of autotrophic denitrifiers developing a microbial community with predomi

SUBMITTER: Carboni MF 

PROVIDER: S-EPMC8215349 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature