Mitigating emissions from pig and poultry housing facilities through air scrubbers and biofilters: State-of-the-art and perspectives

Heyden, Caroline Van der; Demeyer, Peter; Volcke, Eveline

doi:10.1016/j.biosystemseng.2015.04.002

Cited by 131 publications

(91 citation statements)

References 87 publications

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“…Where animals are housed, particularly in winter, air is often extracted, and there is thus an opportunity for mitigation of methane emissions. Air extracted from intensive pig and poultry production can also generate high methane mole fractions (Van der Heyden et al, ). In Europe some facilities housing cattle also have air extraction systems installed.…”

Section: Reducing Agricultural Methane Productionmentioning

confidence: 99%

“…Unfortunately, despite their apparent promise, one significant concern with using biofilters at low methane concentrations is that their operation may inadvertently increase other greenhouse gas emissions, in particular emissions of N 2 O (which has a lifetime of over a century and a global warming potential 10 times greater than methane over 100 yr). Specifically, a review of bio‐filters in the swine industry has shown that biofilters increase the amount of N 2 O present of up to 400% (Van der Heyden et al, , and references therein). The proposed biochemical pathway is the conversion of NH 3 ‐N with 10–40% efficiency, with long residence times of the air in the filter, necessary for low concentration methane removal, positively correlated with emission.…”

Section: Reducing Agricultural Methane Productionmentioning

confidence: 99%

See 1 more Smart Citation

Methane Mitigation: Methods to Reduce Emissions, on the Path to the Paris Agreement

Nisbet

Fisher

Lowry

et al. 2020

Reviews of Geophysics

235

131

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The atmospheric methane burden is increasing rapidly, contrary to pathways compatible with the goals of the 2015 United Nations Framework Convention on Climate Change Paris Agreement. Urgent action is required to bring methane back to a pathway more in line with the Paris goals. Emission reduction from “tractable” (easier to mitigate) anthropogenic sources such as the fossil fuel industries and landfills is being much facilitated by technical advances in the past decade, which have radically improved our ability to locate, identify, quantify, and reduce emissions. Measures to reduce emissions from “intractable” (harder to mitigate) anthropogenic sources such as agriculture and biomass burning have received less attention and are also becoming more feasible, including removal from elevated‐methane ambient air near to sources. The wider effort to use microbiological and dietary intervention to reduce emissions from cattle (and humans) is not addressed in detail in this essentially geophysical review. Though they cannot replace the need to reach “net‐zero” emissions of CO2, significant reductions in the methane burden will ease the timescales needed to reach required CO2 reduction targets for any particular future temperature limit. There is no single magic bullet, but implementation of a wide array of mitigation and emission reduction strategies could substantially cut the global methane burden, at a cost that is relatively low compared to the parallel and necessary measures to reduce CO2, and thereby reduce the atmospheric methane burden back toward pathways consistent with the goals of the Paris Agreement.

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Section: Reducing Agricultural Methane Productionmentioning

confidence: 99%

Section: Reducing Agricultural Methane Productionmentioning

confidence: 99%

Methane Mitigation: Methods to Reduce Emissions, on the Path to the Paris Agreement

Nisbet

Fisher

Lowry

et al. 2020

Reviews of Geophysics

235

131

View full text Add to dashboard Cite

show abstract

“…The pH value of the washing water was assumed to be constant, at a value of 4 for the reference case. The liquid flow rate Q L was set to 10 m 3 h −1 m −2 cross‐sectional area 3. The recirculation rate was set to 100 % to reduce the water consumption.…”

Section: Case Studymentioning

confidence: 99%

“…They are used to efficiently remove pollutants from the gas stream through absorption, typically in water, followed by chemical conversions and removal of the end products. The working principle of this type of air scrubbers has already been extensively discussed in the literature by other authors 1–3. Applications comprise exhaust streams containing SO 2 and NO from combustion plants 4, 5, chlorine gas streams 6, or streams from agricultural applications containing mainly ammonia 7–10.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Modeling of Pollutant Removal, Temperature, and Evaporation in Chemical Air Scrubbers

et al. 2016

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Chemical air scrubbers reduce the concentration of water-soluble components such as ammonia from the outgoing ventilation air through absorption in water, followed by chemical conversions and removal of the end products. A mechanistic model for a countercurrent air scrubber was set up. Mass balances for ammonia, hydrogen sulfide, nitrous oxide, and methane were implemented, as well as the water mass balance and heat balances. The model was validated against experimental data from a conventional fattening pig housing facility. The effect of influent characteristics, design parameters, and control handles on the removal efficiency, the temperature profile, and the water evaporation rate were investigated through simulation. The model was able to describe the behavior of a countercurrent chemical air scrubber.

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“…In addition, the efficiency of each system needs to be verified in a comparable way; for this reason, the Verification of Environmental Technologies for Agricultural Production (VERA) test protocol, a multinational collaboration between Denmark, The Netherlands and Germany, was established [5]. For the mitigation of odorous emissions from livestock buildings, biofilter systems have notably proven their worth [4,6,7].…”

Section: Introductionmentioning

confidence: 99%

Suitability of Different Filling Materials for a Biofilter at a Broiler Fattening Facility in Terms of Ammonia and Odour Reduction

2019

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A two-stage exhaust air treatment system installed at a broiler fattening facility with 40,000 animals was investigated. The facility's exhaust air was treated first by use of a chemo-scrubber (stage 1) and afterwards by a vertical biofilter (stage 2). The biofilter was equipped with root wood and honeycombed paper pad layers (half/half) to enable a direct comparison of both filter materials' suitability. Odour samples were taken on site and afterwards analysed at an olfactometry laboratory. Ammonia concentration values were collected continuously using a photoacoustic multi-gas monitor. High mitigation performance was achieved with both filter materials, with the honeycombed paper pad layer being less susceptible to fungal growth than the root wood filter. Cellulose seems to be a proper alternative for use in biofilters, but further research is needed to estimate the long-term stability of this material.

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Mitigating emissions from pig and poultry housing facilities through air scrubbers and biofilters: State-of-the-art and perspectives

Cited by 131 publications

References 87 publications

Methane Mitigation: Methods to Reduce Emissions, on the Path to the Paris Agreement

Methane Mitigation: Methods to Reduce Emissions, on the Path to the Paris Agreement

Mechanistic Modeling of Pollutant Removal, Temperature, and Evaporation in Chemical Air Scrubbers

Suitability of Different Filling Materials for a Biofilter at a Broiler Fattening Facility in Terms of Ammonia and Odour Reduction

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