Influence of temperature and pH on the anammox process: A review and meta-analysis

Tomaszewski, Mariusz; Cema, Grzegorz; Ziembińska-Buczyńska, Aleksandra

doi:10.1016/j.chemosphere.2017.05.003

Cited by 217 publications

(67 citation statements)

References 86 publications

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“…There is no need for aeration and an extra carbon source dosage in the anammox process; thus, anammox-based technologies are cheaper than the traditional nitrification-denitrification combination. Despite obvious advantages, there are several disadvantages of the anammox process: anammox bacteria are relatively sensitive to drastic changes of technological parameters, such as pH, temperature or free ammonia (Jin et al 2012;Tomaszewski et al 2017). Moreover, anammox bacteria grow slowly in comparison with other nitrogen removal bacteria [doubling time from 3.6 (Tsushima et al 2007) to 18 days (Trigo et al 2006)], which is the reason of the problems with a fast startup of the process in a technological scale, both at the beginning of the performance and after the operational problems Editorial responsibility: M. Abbaspour.…”

Section: Introductionmentioning

confidence: 99%

“…causing the process efficacy failure. Usually, it takes from 100 to 390 days to start-up of anammox reactor (Tomaszewski et al 2017); thus, fastening the start-up process would be advisable especially from the economic reasons. In situation of inoculating systems with the anammox biomass, the fast start-up problem can be overcome, but still there is no sufficient knowledge about the ecological relationships existing in such a community among various nitrogen removal bacterial groups (Liu et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Ecophysiology and dynamics of nitrogen removal bacteria in a sequencing batch reactor during wastewater treatment start-up

Ziembińska-Buczyńska

Banach-Wiśniewska

Tomaszewski

et al. 2019

Int. J. Environ. Sci. Technol.

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Nitrogen removal communities performing wastewater treatment consist of ammonia oxidisers, nitrite oxidisers, denitrifiers, and anammox bacteria, and the proportion and activity of particular microbial groups depend not only on the physiochemical parameters of the bioreactor, but also on the composition of the inoculum. Nitrifiers and denitrifiers usually dominate in conventional wastewater treatment systems due to the fact that nitrification and denitrification are the most commonly used nitrogen removal processes. However, from the economical point of view in case of wastewater with high ammonia concentrations, anammox-based technologies are desirable for their treatment. The disadvantage of such systems is slow anammox bacteria growth, which extends an effective technological start-up. Thus, in this study, a fast start-up of the anammox process supported with an anammox-rich inoculum was performed in a sequencing batch reactor (SBR). Using anammox inoculation of SBR laboratory system, the start-up can be fastened to 85 days with 84.5% of nitrogen removal efficacy. The spatial distribution of nitrogen removal bacteria analysed with fluorescent in situ hybridisation revealed that anammox and nitrifiers are located side by side in the flocs and the relative number of ammonia and nitrite oxidisers decreased after 85 days of the experiment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecophysiology and dynamics of nitrogen removal bacteria in a sequencing batch reactor during wastewater treatment start-up

Ziembińska-Buczyńska

Banach-Wiśniewska

Tomaszewski

et al. 2019

Int. J. Environ. Sci. Technol.

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“…Nitrogen removal was probably improved by the denitrification, which existed simultaneously in the bioreactor [2], what can be proved by COD and nitrate removal. Average ratio of nitrate produced to ammonium consumed was between 0.13 -0.20, what is lower than proposed for anammox process stoichiometric value (0.26) [1]. When NLR achieved 1.391 kg N/m d and 1.023 kg N/m 3 d, during landfill leachate and synthetic wastewater treatment, respectively.…”

Section: Resultsmentioning

confidence: 75%

“…As a consequence, it reduces operational costs (up to 60%), what is one of the most important advantages. The other advantages over the nitrification-denitrification system are: higher nitrogen removal rate, lower bioreactor volume, lower greenhouse gasses emission and lower excess sludge production (by 90%) [1]. Anammox process is particularly suitable for the treatment of wastewater with high nitrogen concentration and a deficiency in organic carbon.…”

Section: Introductionmentioning

confidence: 99%

Performance of the anammox sequencing batch reactor treating synthetic and real landfill leachate

et al. 2018

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Abstract. The anaerobic ammonium oxidation (anammox) process is one of the most energy efficient and environmentally-friendly bioprocess for the treatment of the wastewater with high nitrogen concentration. The aim of this work was to study the influence of the high nitrogen loading rate (NLR) on the nitrogen removal in the laboratory-scale anammox sequencing batch reactor (SBR), during the shift from the synthetic wastewater to landfill leachate. In both cases with the increase of NLR from 0.5 to 1.1 -1.2 kg N/m 3 d, the nitrogen removal rate (NRR) increases to about 1 kg N/m 3 d, but higher NLR caused substrates accumulation and affects anammox process efficiency. Maximum specific anammox activity was determined as 0.638 g N/g VSS·d (NRR 1.023 kg N/m 3 ·d) and 0.594 g N/g VSS·d (NRR 1.241 kg N/m 3 ·d) during synthetic and real wastewater treatment, respectively. Both values are similar and this is probably the nitrogen removal capacity of the used anammox biomass. This indicates, that landfill leachate did not influence the nitrogen removal capacity of the anammox process.

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“…The doubling period (10–14 days) is the main obstacle to anammox application . Anammox is a pH dependent process and substrate transfer plays an important role in the retention of anammox biomass. Biomass retention efforts have led to the development of different concepts such as attached growth using different supports, granulation, hybrid reactors, etc.…”

Section: Recent Developments In Anammox Immobilizationmentioning

confidence: 99%

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

Manonmani

Joseph

2018

J of Chemical Tech & Biotech

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Application of the anaerobic ammonium oxidation (anammox) process using suspended or attached growth technology has limitations of slow growth rate such as biomass washout, and large footprint. This has led to the development of smaller, compact immobilized systems. In recent years, wastewater treatment using anammox immobilized cells has received much attention due to its advantages of high biomass content, retention of biomass by prevention of washout, good solid–liquid separation and lower toxicity to microorganisms. This article critically reviews the existing literature on autotrophic nitrogen removal using anammox bacteria in its immobilized form. Different methods of using immobilized anammox bacteria were identified. Characteristics of various polymeric gels such as solubility, biodegradability, stability, diffusivity and growth of biomass in the polymeric gel were studied. However, there is insufficient study of disposal methods and costs involved in anammox immobilization to guide future implementation of immobilized anammox technologies for autotrophic nitrogen removal. © 2018 Society of Chemical Industry

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Influence of temperature and pH on the anammox process: A review and meta-analysis

Cited by 217 publications

References 86 publications

Ecophysiology and dynamics of nitrogen removal bacteria in a sequencing batch reactor during wastewater treatment start-up

Ecophysiology and dynamics of nitrogen removal bacteria in a sequencing batch reactor during wastewater treatment start-up

Performance of the anammox sequencing batch reactor treating synthetic and real landfill leachate

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

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