Kinetics of Indigenous Nitrate Reducing Sulfide Oxidizing Activity in Microaerophilic Wastewater Biofilms

• Published in: PloS one Vol. 11; no. 2; p. e0149096
• Main Authors: Villahermosa, Desirée, Corzo, Alfonso, Garcia-Robledo, Emilio, González, Juan M, Papaspyrou, Sokratis
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 12.02.2016; Public Library of Science (PLoS)
• Subjects: Aerobiosis; Bacteria; Biofilms; Biology and Life Sciences; Chemical oxygen demand; Community composition; Gene expression; Hydrogen-Ion Concentration; Kinetics; Metabolism; Methods; Microbial Consortia - genetics; Microbial mats; Microelectrodes; Microorganisms; Molecular Typing; Nitrates; Nitrates - analysis; Nitrates - metabolism; Oxidation; Oxidation-Reduction; Oxygen; Oxygen consumption; Penetration depth; Physical Sciences; Physiological aspects; Reduction; RNA, Bacterial - genetics; RNA, Ribosomal, 16S - genetics; Sequence Analysis, RNA; Sewage treatment; Sulfate reduction; Sulfates; Sulfide; Sulfides; Sulfides - analysis; Sulfides - metabolism; Sulfur-Reducing Bacteria - genetics; Sulfur-Reducing Bacteria - metabolism; Thickness; Waste Water - analysis; Waste Water - microbiology; Wastewater facilities; Wastewater treatment; Wastewater treatment plants; Water Microbiology; Water treatment plants; Spain

Nitrate decreases sulfide release in wastewater treatment plants (WWTP), but little is known on how it affects the microzonation and kinetics of related microbial processes within the biofilm. The effect of nitrate addition on these properties for sulfate reduction, sulfide oxidation, and oxygen res...