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KMID : 0613820070170050735
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Journal of Life Science
2007 Volume.17 No. 5 p.735 ~ p.739
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Aerobic Composting Process of Garbage using Thermoacidophilic Bacillus sp. SJ-15
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Kim Choon-Hee
Jeon Seong-Soo
Nam Soo-Wan
Choi Woo-Bong
Lee Jong-Hwan
Kang Byoung-Won
Kim Hweh-Su
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Abstract
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A thermoacidophilic bacterium was isolated from the compost and designated as Bacillus sp. SJ-15 by physiological and biochemical characteristics. The optimum temperature and pH for growth were at 55℃ and pH 5.0, respectively. The strain SJ-15 was adapted in process of accelerated high-temperature composting of garbage. The highest viable cell count of composting process reached to 9.2×10?/㎖ in 16 hours. After running times of 100 days, the composting process showed a reduction rate of approximately 88%, and the concentrations of components were sufficiently high or low to satisfied the standard of organic compost except for salinity.
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KEYWORD
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garbage, thermoacidophilic bacteria, compost, pH, temperature
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