Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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The investigation of combined ventilation-biofilter systems using recycled treated wastewater on odor reduction efficiency

  • Febrisiantosa, Andi (Department of Agricultural Biotechnology, Research Institute for Agricultural and Life Science, Seoul National University) ;
  • Choi, Hong L. (Department of Agricultural Biotechnology, Research Institute for Agricultural and Life Science, Seoul National University) ;
  • Renggaman, Anriansyah (Department of Agricultural Biotechnology, Research Institute for Agricultural and Life Science, Seoul National University) ;
  • Sudiarto, Sartika I.A. (Department of Agricultural Biotechnology, Research Institute for Agricultural and Life Science, Seoul National University) ;
  • Lee, Joonhee (Institute of Livestock Environmental Management)
  • Received : 2019.10.08
  • Accepted : 2019.12.10
  • Published : 2020.07.01
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Abstract

Objective: The present study aimed to evaluate the performance of odor abatement by using two different ventilation-biofilter systems with recycled stablized swine wastewater. Methods: The performance of odor removal efficiency was evaluated using two different ventilation-biofilter-recycled wastewater arrangements. A recirculating air-flow ventilation system connected to a vertical biofilter (M1) and a plug-flow ventilation system connected to a horizontal biofilter (M2) were installed. Water dripping over the surface of the biofilter was recycled at a flow rate of 0.83 L/h in summer and 0.58 L/h in winter to reduce odorous compounds and particulate matter (PM). The experiments were performed for 64 days with M1 and M2 to investigate how these two ventilation-biofilter systems influenced the reduction of odor compounds in the model houses. Odorous compounds, NH3 and volatile organic compounds (VOCs) were analyzed, and microclimatic variables such as temperature, humidity, and PM were monitored. Results: Ammonia concentration inside M1 was about 41% higher on average than that in M2. PM and total suspended particles (TSPs) inside M1 were about 62.2% and 69.9%, respectively, higher than those in M2. TSPs in the model house were positively correlated with the concentration of NH3 and VOCs. Conclusion: M2 emitted lower concentration of odorous compounds than M1. Moreover, M2 could maintain the optimum temperature condition for a swine house during the cooler season. The plug-flow ventilation-horizontal biofilter system could be used for pig houses to minimize air pollution produced by swine farming activities and maintain optimum microclimate conditions for pigs.

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References

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