Regulation of ammonia oxidation in biotrickling airfilters with high ammonium load

Ottosen, Lars Ditlev Mørck; Juhler, Susanne; Guldberg, Lise Bonne; Feilberg, Anders; Revsbech, Niels Peter; Nielsen, Lars Peter

doi:10.1016/j.cej.2010.12.022

Cited by 39 publications

(27 citation statements)

References 18 publications

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“…The washing water at the last stages also contained the lowest pollutant load as freshwater was added there. Strikingly, removal of ammonia from the air to the water was mainly accomplished by the first filter sections (Kristiansen et al ., ; Ottosen et al ., ), where the nitrifying community was the lowest. It thus seemed that absorption was sufficient to remove ammonia from the air to the water, whereby the absorbed ammonia is slowly oxidized into nitrite and nitrate by the nitrifying population or by discharge, without a considerable effect on the ammonia removal efficiency.…”

Section: Resultsmentioning

confidence: 96%

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Heyden

Mulder

Volcke

et al. 2019

Microbial Biotechnology

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Summary In this study, the microbial community structure of two full‐scale biotrickling filters treating exhaust air from a pig housing facility were evaluated using 16S metabarcoding. The effect of inoculation with activated sludge of a nearby domestic waste water treatment plant was investigated, which is a cheap procedure and easy to apply in practice. The study was performed at a three‐stage and a two‐stage full‐scale biotrickling filter; of which, only the latter was inoculated. Both biotrickling filters evolved towards a rather similar community over time, which differed from the one in the activated sludge used for inoculation. However, the bacterial population at both biotrickling filters showed small differences on the family level. A large population of heterotrophic bacteria, including denitrifying bacteria, was present in both biotrickling filters. In the non‐inoculated biotrickling filter, nitrite‐oxidizing bacteria (NOB) could not be detected, which corresponded with the incomplete nitrification leading to high nitrite accumulation observed in this system. Inoculation with the wide spectrum inoculum activated sludge had in this study a positive effect on the biotrickling filter performance (higher ammonia removal and lower nitrous oxide production). It could thus be beneficial to inoculate biotrickling filters in order to enrich NOB at the start‐up, making it easier to keep the free nitrous acid concentration low enough to not be inhibited by it.

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Section: Resultsmentioning

confidence: 96%

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Heyden

Mulder

Volcke

et al. 2019

Microbial Biotechnology

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“…), and the sum of NO 2 − and NO 3 − concentrations is usually maintained at 60–80 mmol l −1 (Ottosen et al . ). High osmotic pressure could inhibit AOB (Hunik et al .…”

Section: Discussionmentioning

confidence: 97%

“…Theoretically, to achieve an ion balance, half of the inlet NH 3 is nitrified to NO 2 − or nitrate (NO 3 − ) and the other half is absorbed into the water as ammonium (NH 4 + ) (Ottosen et al . ). Oxidation of NH 3 is considered to be the main microbial activity, resulting in the accumulation of inorganic forms of nitrogen (e.g.…”

Section: Introductionmentioning

confidence: 97%

Community structure of denitrifying and total bacteria during nitrogen accumulation in an ammonia‐loaded biofilter

et al. 2017

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“…Melsea and Ogink [14] (2005) reported that up to 90% of the ammonia-N removed was discharged or accumulated in the water as ammonium and nitrate. According to different authors [14] [15] [32], the accumulation of nitrogen compounds in washing water could modify the equilibrium between the concentration of ammonia in the outlet air and the concentration of dissolved ammonia in the water [17]. Such an equilibrium is usually influenced by fluctuations in the composition of the air and of the water, which occurs when the air scrubber is overloaded or when the flow rate of the discharge water is set too low [17] [20].…”

Section: Efficiency Of Ammonia Removalmentioning

confidence: 99%

Assessment of NH<sub>3</sub> Reduction and N<sub>2</sub>O Production during Treatment of Exhausted Air from Fattening Pigs Building by a Commercial Scrubber

Loyon¹,

Dupard²,

Saint-Cast³

et al. 2016

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The use of air scrubbers to reduce ammonia (NH 3) emissions from buildings on pig farms is one of the most promising techniques in the Göteborg protocol and other European regulations including the Industrial Emission Directive. In France, some air scrubbers are currently used on pig farms, mainly to reduce odours from livestock buildings. However, recent research revealed the production of N 2 O resulting from the treatment of air from pig buildings. In this context, a two-month study was conducted on a pig farm with 750 places for fattening pigs to check the abatement of NH 3 emissions and to assess the possible production of N 2 O during treatment of exhausted air from buildings housing fattening pigs by a air scrubber. Concentrations of NH 3 and N 2 O in the inlet and outlet air of the scrubber were continuously monitored using an Innova 1412 infrared analyzer. With the scrubber operating parameters (airflow, design, size), our results confirmed the production of N 2 O in the order of 5% of NH 3-N reduced. N 2 O was produced by biological nitrification and/or denitrification inside the air scrubber. Statistical analysis (Pearson's test) showed that the production of N 2 O was strongly influenced by the rate of airflow and the outside temperature. The abatement of NH 3 emissions from the building was only 33%, i.e. much lower than the 70%-90% usually cited in the literature.

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Regulation of ammonia oxidation in biotrickling airfilters with high ammonium load

Cited by 39 publications

References 18 publications

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Community structure of denitrifying and total bacteria during nitrogen accumulation in an ammonia‐loaded biofilter

Assessment of NH<sub>3</sub> Reduction and N<sub>2</sub>O Production during Treatment of Exhausted Air from Fattening Pigs Building by a Commercial Scrubber

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Regulation of ammonia oxidation in biotrickling airfilters with high ammonium load

Cited by 39 publications

References 18 publications

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Community structure of denitrifying and total bacteria during nitrogen accumulation in an ammonia‐loaded biofilter

Assessment of NH&lt;sub&gt;3&lt;/sub&gt; Reduction and N&lt;sub&gt;2&lt;/sub&gt;O Production during Treatment of Exhausted Air from Fattening Pigs Building by a Commercial Scrubber

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Assessment of NH<sub>3</sub> Reduction and N<sub>2</sub>O Production during Treatment of Exhausted Air from Fattening Pigs Building by a Commercial Scrubber