Biological nitrogen removal from sewage via anammox: Recent advances

Ma, Bin; Wang, Shanyun; Cao, Shenbin; Miao, Yuanyuan; Jia, Fangxu; Du, Rui; Peng, Yongzhen

doi:10.1016/j.biortech.2015.10.074

Cited by 612 publications

(176 citation statements)

References 72 publications

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“…Another strategy is based on the control of the dissolved oxygen (DO) concentration at low values profiting from the fact that at high temperature the oxygen affinity of AOB is lower than that of NOB. But for a long time operation at low temperatures this is not applicable as this behaviour is inverted (higher oxygen affinity for AOB than AOB) (Ma et al 2016). This may be explained by the dominant NOB specie since Nitrospira-like NOB (Kstrategists) abundance increase under DO limited conditions and lower temperature against Nitrobacter-like NOB (r-strategists) (Ma et al 2016).…”

Section: Introductionmentioning

confidence: 96%

“…But for a long time operation at low temperatures this is not applicable as this behaviour is inverted (higher oxygen affinity for AOB than AOB) (Ma et al 2016). This may be explained by the dominant NOB specie since Nitrospira-like NOB (Kstrategists) abundance increase under DO limited conditions and lower temperature against Nitrobacter-like NOB (r-strategists) (Ma et al 2016). Recently, new strategies arose such as the use free ammonia or free nitrous acid NOB inhibitory concentrations (more toxic to NOB than to AOB), real time control of parameters like pH, ammonia or nitrate concentrations (Ge et al 2015;Wang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Biomass aggregation influences NaN3 short-term effects on anammox bacteria activity

Pedrouso

Campos

Méndez

et al. 2016

Water Science and Technology

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Abstract:The main bottleneck to maintain the long term stability of the partial nitritation-anammox processes, especially those operated at low temperatures and nitrogen concentrations is the undesirable development of nitrite oxidizing bacteria (NOB). When this occurs, the punctual addition of compounds with the capacity to specifically inhibit NOB without affecting the process efficiency might be of interest. Sodium azide (NaN3) is an already known NOB inhibitor which at low concentrations does not significantly affect the ammonia oxidizing bacteria (AOB) activity. However, studies about its influence on anammox bacteria are unavailable. For this reason the objective of the present study was to evaluate the effect of NaN3 on the anammox activity. Three different types of anammox biomass were used: granular biomass comprising AOB and anammox bacteria (G1), anammox enriched granules (G2) and previous anammox granules disaggregated (F1). No inhibitory effect of NaN3 was measured on G1 sludge however the anammox activity decreased in the case of G2 and F1. Granular biomass activity was less affected (IC50 90 mg/L, G2) than flocculent one (IC50 5 mg/L, F1). Summing up not only the granular structure protects the anammox bacteria from the NaN3 inhibitory effect but also the AOB act as a barrier decreasing the inhibition.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Biomass aggregation influences NaN3 short-term effects on anammox bacteria activity

Pedrouso

Campos

Méndez

et al. 2016

Water Science and Technology

View full text Add to dashboard Cite

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“…In this way, an extra source of energy is needed to provide oxygen during the process of ammonia oxidation, nitrification, and an extra source of organic matter for the denitrification step (Ma et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

et al. 2017

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This study aimed to evaluate a structured bed reactor with intermittent aeration in the simultaneous removal of Chemical Oxygen Demand (COD) and Total Nitrogen (TN) from sanitary sewage. The reactor was operated for 339 days with a Hydraulic Retention Time (HRT) of 12 hours, temperature of 30 ± 1ºC and continuous feeding. Nine trials were carried out in which three different effluent recirculation flow (Qr), 3, 2 and 1 time the incoming flow, were evaluated in three different aeration times, of 1h, 2h, and 3h, in 3 hour cycles. The results showed that different recirculation flows and aeration times did not influence the removal of COD, which reached 89%±12. It was observed that the efficiency of TN removal was higher in the tests with higher COD/TKN ratio, between 7.2 and 7. It was verified that it is possible to remove the COD and nitrogen from sanitary sewage in a structured bed reactor with intermittent aeration.

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“…Conventional technology still retains the basic principle of complete nitrogen cycle through nitrification and denitrification (42). Anammox is a sustainable and cost-effective alternative to the basic method of nitrogen removal.…”

Section: Challenges In Wastewater Treatment: the Risk Of Nitrogen Formentioning

confidence: 99%

“…Biological nutrient removal technologies are preferred and widely used to remove nitrogen and phosphorus from domestic wastewater and protect water quality (42). Chemical compositions in the domestic wastewater are highly diverse substances from simple compounds to complex polymers.…”

Section: Challenges In Wastewater Treatment: the Risk Of Nitrogen Formentioning

confidence: 99%

Domestic Wastewater in Indonesia: Challenge in the Future Related to Nitrogen Content

Wijaya¹,

Soedjono²

2018

GEOMATE

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ABSTRACT:The option of reusing treated wastewater is becoming necessary for environment sustainability approach. In fact, wastewater effluent discharge regulations have become stricter leading to a better water quality. Municipal activities, agriculture, and rapid urbanization led to increased nitrogen and phosphorus discharge to the water system. More often, the effluents from municipal wastewater treatment plant failed to meet the national standard for effluent quality. Excess nutrients, mostly N and P is the main cause of eutrophication the which results in oxygen depletion, biodiversity reduction, fish kills, odor, and increased toxicity. Biological nutrient removal technologies are preferred and widely used to remove nitrogen and phosphorus from domestic wastewater and protect water quality. Chemical compositions in wastewater are highly diverse substances from simple compounds to complex polymers. Some wastewater samples were analyzed in this research. Conventional technology still retains the basic principle of complete nitrogen cycle through nitrification and denitrification. Anammox is a sustainable and cost-effective alternative to the basic method of nitrogen removal. Anammox has been identified as a new biotechnology for nitrogen reduction from wastewater. Compared to the common process of nitrogen removal, anammox can reduce 64% off aeration, 100% of an exogenous electron donor, and sludge production by 80-90%. Some benefits from anammox include high nitrogen removal rate, lower operational cost, and small space requirements. Anaerobic baffled reactor (ABR) in Indonesia has been used commonly as communal wastewater treatment. Promoting anammox process in ABR potentially become an improvement for ABR in removing nitrogen better. This combination process still outlined for further research.

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Biological nitrogen removal from sewage via anammox: Recent advances

Cited by 612 publications

References 72 publications

Biomass aggregation influences NaN3 short-term effects on anammox bacteria activity

Biomass aggregation influences NaN3 short-term effects on anammox bacteria activity

Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

Domestic Wastewater in Indonesia: Challenge in the Future Related to Nitrogen Content

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