무창 육성$\cdot$비육돈사에서의 Biofilter에 의한 악취제어 효과

• Published in: 축산시설환경학회지 Vol. 11; no. 1; pp. 55 - 60
• Main Authors: 송준익, 김태일, 최희철, 유용희, 정종원, 연규영, 양창범, 김두환, 이진우, Song J. I, Kim T. I, Choi H. C, Yoo Y. H, Jeong J. W, Yeon K. Y, Barroga Antonio, Yang C. B, Kim D. H, Lee J. W
• Format: Journal Article
• Language: Korean
• Published: 2005
• ISSN: 1226-0274

This study was conducted to determine the odor reduction efficiency of a biofilter desist using different filter materials. The summary of results are as follows; 1. The airflow penetration rate of the different filter materials namely; rice straw, woodchips, rice hulls and sawdust were 0.72 m/s, 0.64 m/s, 0.48 m/s and 0.17 m/s, respectively. 2. The elimination of $NH_3$ gas was fastest in the rice hull at a rate of 4 mg/${\iota}$ followed by sawdust, woodchips and rice straw at 3 mg/${\iota}$, 3 mg/${\iota}$ and 7 mg/${\iota}$, respectively. 3. The filter material made of wood chips was able to eliminate the offensive gas known as $H_2S$ at a rate of 2.2 mg/${\iota}$ on the 7th day, 17.6 mg/${\iota}$ on the 21st day but decreased to 10.7 mg/${\iota}$ on the 36th day. In contrast, the filter material composed of sawdust had a continuous increase in the reduction of $H_2S$ at a rate of 12.3 mg/${\iota}$ on the 7th day, 18.3 mg/${\iota}$ on the 21st day and 20.1 mg/${\iota}$ on the 36th day. The above findings indicated that among the filter materials, sawdust was the most effective in absorbing $H_2S$. Airflow penetration rate can be related to $H_2S$ odor elimination efficiency as shown by the slowest airflow rate of sawdust which is only 0.17 m/s.