Topic
Nitrite
About: Nitrite is a research topic. Over the lifetime, 15425 publications have been published within this topic receiving 484581 citations.
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TL;DR: It was demonstrated that NO(2)(-) could be efficiently degraded on the doped photoanode that showed a higher activity than the undoped WO(3) especially under high anodic potential (>0.7 V) and the rate of degradation was enhanced in aqueous NaCl solutions.
137 citations
TL;DR: In this paper, the authors used activated sludge that had been adapted to a wastewater containing moderately high levels of nitrate (1350 mg/L a/N) and salinity (40000 mg/l total dissolved solids).
Abstract: Nitrite inhibition of denitrification was investigated using activated sludge that had been adapted to a wastewater containing moderately high levels of nitrate (1350 mg/L a/N) and salinity (40000 mg/L total dissolved solids). After adaptation, the activated sludge was used to study pH effects on nitrite inhibition of denitrification over a range of 15 to 2100 mg/L nitrite nitrogen (NO 2 -N). A pH range of 6 to 8 was used. Using a zero-order model, it was found that the denitrification rate for 250 mg/L NO 2 -N increased from 0.001 to 0.02 mg N/mg mixed liquor suspended solids (MLSS).h as pH increased from 6 to 8. Denitrification rate reduction at the lower pH was probably caused by the accumulation of the species nitrous acid (HNO 2 ), and the threshold inhibitory concentration for HNO 2 was estimated to be low : less than 0.02 mg/L HNO 2 -N at pH 6. Mixed liquor suspended solids concentration appeared to have no effect on nitrite inhibition of denitrification.
137 citations
TL;DR: The variables of direct importance in the reduction of nitrate to nitrite by a metallic reductant such as cadmium used in a reductor column are discussed with special reference to the determination of nitrite as nitrite in very dilute solutions, e.g., natural waters.
137 citations
TL;DR: A metal-free catalytic system consisting of 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO) and tert-butyl nitrite has been developed to activate molecular oxygen for the aerobic oxidation of alcohols as discussed by the authors.
Abstract: A metal-free catalytic system consisting of 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO) and tert-butyl nitrite has been developed to activate molecular oxygen for the aerobic oxidation of alcohols A variety of active and non-active alcohols were oxidized to their corresponding carbonyl compounds in high selectivity and yields
137 citations
TL;DR: The presence of oxygen decreased the removal efficiency of inorganic nitrogen and caused an increase of nitrite concentration in the treated water and the development of the biofilm was influenced by the DO concentration as excess O(2) caused reduced biofilm growth.
137 citations