Toluene–nitrite inhibition synergy of anaerobic ammonium oxidizing (anammox) activity

摘要: Abstract Anammox process is emerging as a promising biotechnology to remove ammonium (NH4+) from wastewater. Co-existing organic matters such toluene could pose potential inhibitions on this process. In study, the mechanisms of toluene–nitrite (NO2−) inhibition synergy anammox activity (AA) was investigated in batch culture. results, AA ( mmol N 2 -N L liquid − 1  h ) reference assays achieved values 0.21 ± 0.0078. The (0.1–3.0 mM) demonstrated different inhibitory effects and caused 50% (IC50) at 0.79 mM. pre-exposure NO2− or alone absence NH4+ much severer inhibition, compared alone. IC50 due lacking 6.25 mM NO2−. These results indicated that by itself did not severely inhibit but so presence