A low-cost mitigation system for ammonia removal from broiler house exhaust air
Most chicken farms in China utilize chemical deodorants in conjunction with a screen positioned near the fan outlet at the end of the breeding house for deodorization. However, practical observations indicate that the placement of these screens can impact ventilation and animal growth, while the eff...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | Poultry Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0032579125007722 |
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| author | Jingjing Luo Jinsheng Rong Shizhen Zhou Haoliang Wang Miao Li Xiliang Yan Yingbao Wu Yan Wang |
| author_facet | Jingjing Luo Jinsheng Rong Shizhen Zhou Haoliang Wang Miao Li Xiliang Yan Yingbao Wu Yan Wang |
| author_sort | Jingjing Luo |
| collection | DOAJ |
| description | Most chicken farms in China utilize chemical deodorants in conjunction with a screen positioned near the fan outlet at the end of the breeding house for deodorization. However, practical observations indicate that the placement of these screens can impact ventilation and animal growth, while the efficacy of chemical deodorants remains uncertain. In this study, we utilized computational fluid dynamics (CFD) simulations to model a broiler house and analyzed airflow patterns at varying screen distances to assess their effect on indoor ventilation. Additionally, we designed an environmental simulation chamber to evaluate chemical deodorants. Subsequently, we developed an economical and effective ammonia removal blocking system (ARBS). The CFD simulation results show that the simulated wind speeds closely matched measured values, with errors within acceptable ranges. In the experimental chicken house, positioning the screen 3.5 meters from the fan outlet can optimize airflow and is the optimal placement. The results of the environmental simulation chamber show that 80 ppm hypochlorous acid and 70 ppm chlorine dioxide are cost-effective, achieving high ammonia (NH₃) removal rates. Field validation in a broiler house demonstrated that using 80 ppm hypochlorous acid with the ARBS achieved NH₃ and dust removal efficiencies of 82 % and 77 %, respectively. The ARBS requires an initial investment of $1,900 and has an annual operating cost of $590. This system effectively reduces NH₃ emissions with less investment, and its installation can be optimized via CFD simulations to avoid adverse effects on poultry. Therefore, the ARBS presents a viable solution to address NH₃ challenges in poultry production. |
| format | Article |
| id | doaj-art-62e30bd2cef842b5b35626bc2c9e5ffc |
| institution | Kabale University |
| issn | 0032-5791 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Poultry Science |
| spelling | doaj-art-62e30bd2cef842b5b35626bc2c9e5ffc2025-08-20T03:50:06ZengElsevierPoultry Science0032-57912025-10-011041010552910.1016/j.psj.2025.105529A low-cost mitigation system for ammonia removal from broiler house exhaust airJingjing Luo0Jinsheng Rong1Shizhen Zhou2Haoliang Wang3Miao Li4Xiliang Yan5Yingbao Wu6Yan Wang7State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, PR China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, PR China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, PR China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, PR China; Correspondence author at. College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou, 510642, PR China.Most chicken farms in China utilize chemical deodorants in conjunction with a screen positioned near the fan outlet at the end of the breeding house for deodorization. However, practical observations indicate that the placement of these screens can impact ventilation and animal growth, while the efficacy of chemical deodorants remains uncertain. In this study, we utilized computational fluid dynamics (CFD) simulations to model a broiler house and analyzed airflow patterns at varying screen distances to assess their effect on indoor ventilation. Additionally, we designed an environmental simulation chamber to evaluate chemical deodorants. Subsequently, we developed an economical and effective ammonia removal blocking system (ARBS). The CFD simulation results show that the simulated wind speeds closely matched measured values, with errors within acceptable ranges. In the experimental chicken house, positioning the screen 3.5 meters from the fan outlet can optimize airflow and is the optimal placement. The results of the environmental simulation chamber show that 80 ppm hypochlorous acid and 70 ppm chlorine dioxide are cost-effective, achieving high ammonia (NH₃) removal rates. Field validation in a broiler house demonstrated that using 80 ppm hypochlorous acid with the ARBS achieved NH₃ and dust removal efficiencies of 82 % and 77 %, respectively. The ARBS requires an initial investment of $1,900 and has an annual operating cost of $590. This system effectively reduces NH₃ emissions with less investment, and its installation can be optimized via CFD simulations to avoid adverse effects on poultry. Therefore, the ARBS presents a viable solution to address NH₃ challenges in poultry production.http://www.sciencedirect.com/science/article/pii/S0032579125007722CFD simulationAmmonia removalAmmonia removal blocking systemChemical deodorant |
| spellingShingle | Jingjing Luo Jinsheng Rong Shizhen Zhou Haoliang Wang Miao Li Xiliang Yan Yingbao Wu Yan Wang A low-cost mitigation system for ammonia removal from broiler house exhaust air Poultry Science CFD simulation Ammonia removal Ammonia removal blocking system Chemical deodorant |
| title | A low-cost mitigation system for ammonia removal from broiler house exhaust air |
| title_full | A low-cost mitigation system for ammonia removal from broiler house exhaust air |
| title_fullStr | A low-cost mitigation system for ammonia removal from broiler house exhaust air |
| title_full_unstemmed | A low-cost mitigation system for ammonia removal from broiler house exhaust air |
| title_short | A low-cost mitigation system for ammonia removal from broiler house exhaust air |
| title_sort | low cost mitigation system for ammonia removal from broiler house exhaust air |
| topic | CFD simulation Ammonia removal Ammonia removal blocking system Chemical deodorant |
| url | http://www.sciencedirect.com/science/article/pii/S0032579125007722 |
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