Nitrification with high nitrite accumulation for the treatment of wastewater with high ammonia concentration

Ruiz, G.; Jeison, David; Chamy, Rolando

doi:10.1016/s0043-1354(02)00475-x

Cited by 470 publications

(262 citation statements)

References 6 publications

Supporting

Mentioning

233

Contrasting

Unclassified

Order By: Relevance

“…Garrido et al (1997) found that both ammonium oxidation rate and nitrite accumulation reached maximum when DO was 1.5 mg/l. Below 0.5 mg/l of DO ammonium was accumulated and over 1.7 mg/l complete nitrification to nitrate was achieved (Ruiz et al 2003). On the other hand, it should be noticed that lower DO will lower nitrification rate and cause filamentous bulking sludge.…”

Section: Dissolved Oxygen Concentrationmentioning

confidence: 99%

Biological nitrogen removal with nitrification and denitrification via nitrite pathway

Peng

Zhu

2006

Appl Microbiol Biotechnol

525

230

View full text Add to dashboard Cite

Presently, the wastewater treatment practices can be significantly improved through the introduction of new microbial treatment technologies. To meet increasingly stringent discharge standards, new applications and control strategies for the sustainable removal of ammonium from wastewater have to be implemented. Partial nitrification to nitrite was reported to be technically feasible and economically favorable, especially when wastewater with high ammonium concentrations or low C/N ratios is treated. For successful implementation of the technology, the critical point is how to maintain partial nitrification of ammonium to nitrite. Partial nitrification can be obtained by selectively inhibiting nitrite oxidizing bacteria through appropriate regulation of the system's DO concentration, microbial SRT, pH, temperature, substrate concentration and load, operational and aeration pattern, and inhibitor. The review addressed the microbiology, its consequences for their application, the current status regarding application, and the future developments.

show abstract

Section: Dissolved Oxygen Concentrationmentioning

confidence: 99%

Biological nitrogen removal with nitrification and denitrification via nitrite pathway

Peng

Zhu

2006

Appl Microbiol Biotechnol

525

230

View full text Add to dashboard Cite

show abstract

“…Nitrite accumulation under high DO and high FA condition Ruiz et al (2003) reported that DO value higher than 1.7 mg/L prevented nitrite accumulation. However, recent studies have observed high NAR at 4 mg/L DO in the treatment of high Fig.…”

Section: Discussionmentioning

confidence: 95%

“…DO level less than 1.0 mg/L is favorable for the inhibition of nitrite-oxidizing bacteria (NOB) (Kim et al 2008), and de Graaff et al (2010) indicated that DO of 1.5-1.7 mg/L was superior for nitrite accumulation in the treatment of high ammonium wastewater. Ruiz et al (2003) reported that DO higher than 1.7 mg/L could not achieve nitrite accumulation. However, An et al (2008) and Tokutomi et al (2010) achieved approximately 90 % NAR at DO of approximately 4 mg/L in the treatment of high ammonium wastewater.…”

Section: Introductionmentioning

confidence: 99%

Response of nitrite accumulation and microbial community to free ammonia and dissolved oxygen treatment of high ammonium wastewater

Sui

Liu

Zhang

et al. 2016

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

The effects of free ammonia (FA) and dissolved oxygen (DO) on nitrite accumulation in the treatment of high ammonium wastewater and on the evolution of the microbial community were investigated. Under high DO conditions (3.75±0.49 mg/L), FA as high as 10.61±2.89 mg NH 3 /L maintained stable nitrite accumulation rate (NAR) of 84 % with NH 4 + -N load of 2.05 kg N/(m 3 day) at sludge retention time (SRT) of 15-18 days. After 56 days of operation, Proteobacteria and Nitrosomonas were the dominant phylum and genus, respectively; Nitrosomonas increased from 21.14 to 54.57 %. By contrast, under relative low DO and low FA, nitrite-oxidizing bacteria (NOB) were nearly eliminated (NOB/AOB of 0; ammonium-oxidizing bacteria (AOB)), and NAR of 94 % was achieved with lower NH 4 + -N load of 0.48 kg N/(m 3 day). DO correlated with AOB and NOB abundance, and FA decreased NOB activity and the NOB/AOB ratio. In conclusion, high FA and high DO conditions are optimal for efficient nitrite accumulation.

show abstract

“…Although the free ammonia concentrations in the aerobic stages of the treatment cycles were within the range determined by Anthonisen et al (1976) as inhibiting for nitrite oxidizing bacteria (0.1 to 1.0 mg NH 3 .L -1 ), this was not the only factor in establishing a stable nitritation. Due to the long-term reactor operation, NOB could adapt to an inhibitory free ammonia concentration, as suggested by other researchers Fux and Siegrist, 2004;Ruiz et al, 2003). In fact, stable nitritation was achieved with the maintenance of a maximum DO concentration of 1.0 mgO 2 /L, a pH value of 8.3 and the adjustment of the aeration time required for ammonia oxidation.…”

Section: Conditions For Nitrite Predominancementioning

confidence: 90%

“…Its composition in terms of macronutrients was suggested by APHA, AWWA, WEF (2005). A micronutrient stock solution, adapted from Ruiz et al (2003), was added at a proportion of 1 ml.L -1 of synthetic wastewater. …”

Section: Methodsmentioning

confidence: 99%

Biological nitrogen removal over nitritation/denitritation using phenol as carbon source

Queiroz

Aun

Morita

et al. 2011

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Nitrification with high nitrite accumulation for the treatment of wastewater with high ammonia concentration

Cited by 470 publications

References 6 publications

Biological nitrogen removal with nitrification and denitrification via nitrite pathway

Biological nitrogen removal with nitrification and denitrification via nitrite pathway

Response of nitrite accumulation and microbial community to free ammonia and dissolved oxygen treatment of high ammonium wastewater

Biological nitrogen removal over nitritation/denitritation using phenol as carbon source

Contact Info

Product

Resources

About