title: Biodegradation of 4-methylaniline in a sequencing batch reactor.
abstract: The biodegradation of the aromatic amine 4-methylaniline (4MA) using an aerobic sequencing batch reactor was evaluated. The specific degradation rate showed an exponential increase during the acclimation of the microorganisms reaching a maximal value of 34 mg 4MA/VSS/h. After the acclimation, the process showed a stable operation. A high similarity index was observed, indicating a low variation in the population diversity. During this period, the physicochemical parameters demonstrated a stable operation of the reactor.
authors.affiliation: Laboratory for Research on Advanced Processes for Water Treatment, Instituto de Ingeniería, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, Mexico. imorenoa@ii.unam.mx
authors.forename: Iván
authors.initials: I
authors.lastname: Moreno-Andrade
authors.forename: Germán
authors.initials: G
authors.lastname: Buitrón
mesh_terms: D000332:Aerobiosis; D000814:Aniline Compounds / Q000737:chemistry* / Q000378:metabolism*; D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000378:metabolism; D001673:Biodegradation, Environmental; D019149:Bioreactors; D058645:Denaturing Gradient Gel Electrophoresis; D012329:RNA, Bacterial / Q000235:genetics / Q000378:metabolism; D012336:RNA, Ribosomal, 16S / Q000235:genetics / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000378:metabolism*
chemical_list: D000814:Aniline Compounds; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014874:Water Pollutants, Chemical; C021313:methylaniline