Evaluation of two indoor air pollution abatement techniques in forced-ventilation fattening pig barns

Mostafa, Ehab; Hoelscher, Richard; Diekmann, B.; Ghaly, A. E.; Buescher, Wolfgang

doi:10.1016/j.apr.2016.11.003

Cited by 21 publications

(8 citation statements)

References 28 publications

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“…Various wet scrubbers designs are available, including spray-chamber, cyclone spray-chamber, wet-impingement, and venturi scrubbers. The one adopted by Mostafa et al (2017) is a typical horizontal spray-chamber scrubber, with a entrainment eliminator installed downstream to remove liquid droplets; and a sulfuric acid solution was selected as the liquid for simultaneous PM and NH3 removal.…”

Section: Recirculating Air Filtrationmentioning

confidence: 99%

Particulate Matter in Swine Barns: A Comprehensive Review

Yang¹,

Haleem²,

Osabutey³

et al. 2022

Preprint

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Particulate matter (PM) represents an air quality management challenge for confined swine production systems. Because of the limited space and ventilation rate, PM can reach relatively high concentrations in swine barns. PM in swine barns possesses different physical, chemical, and biological characteristics than that in the atmosphere and other indoor environments. As a result, it exerts different environmental and health effects and creates some unique challenges regarding PM measurement and mitigation. Numerous research efforts have been made, generating massive data and information. However, relevant review reports are sporadic. This study aims to provide an updated comprehensive review of swine barn PM, focusing on publications since 1990. It covers various topics, including PM characteristics, sources, measurement methods, and in-barn mitigation technologies. Since PM in swine barns is of primarily biological origins, bioaerosols are reviewed in great detail. Relevant topics include bacterial/fungal counts, viruses, microbial community composition, antibiotic-resistant bacteria, antibiotic resistance genes, endotoxins, and (1→3)-β-D-glucans. For each topic, existing knowledge is summarized and discussed and knowledge gaps are identified. Overall, PM in swine barns is complicated in chemical and biological composition and highly variable in mass concentrations, size, and microbial abundance. Feed, feces, and skins constitute the major PM sources. Regarding in-barn PM mitigation, four technologies (oil/water sprinkling, ionization, alternation of feed and feeders, and recirculating air filtration) are dominant. However, none of them have been widely used in commercial barns. A collective discussion of major knowledge gaps and future research needs is offered at the end of the report.

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Section: Recirculating Air Filtrationmentioning

confidence: 99%

Particulate Matter in Swine Barns: A Comprehensive Review

Yang¹,

Haleem²,

Osabutey³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Ammonia has different sources, such as the inhabitants and their activities, tobacco smoke, detergents containing ammonia, paints, interior drainage pipes, indoor decoration materials, and concrete admixtures [31,32]. It is a major gaseous compound with a highly hydrophilic base in the air of livestock buildings, and it is capable of reducing daily weight gain and feed utilization [33]. In northern Europe, there has been concern about indoor ammonia and possible health effects, as ammonia exposure problems are referred to in the literature [34][35][36].…”

Section: Iaq Monitored Pollution Sources and Their Effects On Healthmentioning

confidence: 99%

A Cost-Effective Air Quality Supervision Solution for Enhanced Living Environments through the Internet of Things

Marques

Pitarma

2019

Electronics

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We spend about 90% of our lives in indoor living environments. Thus, it is essential to provide indoor air quality monitoring for enhanced living environments. Advances in networking, sensors, and embedded devices have made monitoring and supply of assistance possible to people in their homes. Technological advancements have made possible the building of smart devices with significant capabilities for sensing and connecting, but also provide several improvements in ambient assisted living system architectures. Indoor air quality assumes an important role in building productive and healthy indoor environments. In this paper, the authors present an Internet of Things system for real-time indoor air quality monitoring named iAir. This system is composed by an ESP8266 as the communication and processing unit and a MICS-6814 sensor as the sensing unit. The MICS-6814 is a metal oxide semiconductor sensor capable of detecting several gases such as carbon monoxide, nitrogen dioxide, ethanol, methane, and propane. The iAir system also provides a smartphone application for data consulting and real-time notifications. Compared to other solutions, the iAir system is based on open-source technologies and operates as a totally Wi-Fi system, with several advantages such as its modularity, scalability, low cost, and easy installation. The results obtained are very promising, representing a meaningful contribution for enhanced living environments as iAir provides real-time monitoring for enhanced ambient assisted living and occupational health.

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“…Aspects of the housing's construction and management, such as its ventilation and air treatment systems, may be improved to reduce aerial emissions [6,16]. By applying mechanical/forced or hybrid ventilation, which are now widely used, indoor conditions such as gas and PM concentrations can be controlled to ensure the well-being of workers and animals, and to maintain production performance [23][24][25][26]. A mechanical ventilation system can be used to bring in external fresh air and discharge the internal dirty gases, to realize the effective exchange of air inside and outside the livestock and poultry housing; this can improve the temperature, humidity and air quality in the livestock and poultry house [27,28].…”

Section: Introductionmentioning

confidence: 99%

Mitigation Strategies of Air Pollutants for Mechanical Ventilated Livestock and Poultry Housing—A Review

et al. 2022

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The fast development of large-scale intensive animal husbandry has led to an increased proportion of atmospheric pollution arising from livestock and poultry housing. Atmospheric pollutants, including particulate matter (PM), ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gases (GHG), as well as other hazardous materials (e.g., gases, bacteria, fungi and viruses), have significant influences upon the local atmospheric environment and the health of animals and nearby residents. Therefore, it is imperative to develop livestock and poultry housing mitigation strategies targeting atmospheric pollution, to reduce its negative effects on the ambient atmosphere and to promote sustainable agricultural production. In this paper, we summarize the various strategies applied for reducing outlet air pollutants and purifying inlet air from mechanical ventilated livestock and poultry housing. This review highlights the current state of knowledge on the removal of various atmospheric pollutants and their relative performance. The potential optimization of processes and operational design, material selection, and other technologies, such as electrostatic spinning, are discussed in detail. The study provides a timely critical analysis to fill the main research gaps or needs in this domain by using practical and stakeholder-oriented evaluation criteria.

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Evaluation of two indoor air pollution abatement techniques in forced-ventilation fattening pig barns

Cited by 21 publications

References 28 publications

Particulate Matter in Swine Barns: A Comprehensive Review

Particulate Matter in Swine Barns: A Comprehensive Review

A Cost-Effective Air Quality Supervision Solution for Enhanced Living Environments through the Internet of Things

Mitigation Strategies of Air Pollutants for Mechanical Ventilated Livestock and Poultry Housing—A Review

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