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KMID : 0382419980240010104
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Korean Journal of Environmental Health Society
1998 Volume.24 No. 1 p.104 ~ p.111
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A Study on the Reaction Characteristics of Food Garbage by the Variations of Temperature
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Hu Kwan
Shin Dae-Yewn
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Abstract
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The utilization of food garbage as composting was investigated by using the batch reactor and by varying the initial temperature of the fermentation reactors. As the straw controlled under 50 to 55% of moisture content and mixed 5% of EM(Effective Micro-organisms) microbial agent. An agitator continuously operated 1 rpm, supplying the amount of air(2ℓ/kg.min). Reactor temperature changed three type of 40℃, 50℃, 60℃. In the case of 50℃ operated 72 hr after organic contents showed lowest 48%, and weight reduction rate of showed 77%. The reaction gas was showed 30 min after 19. 9% of the lowest level at 20.9% concentration of oxygen and CO_2 gas was produced 0.9% due to organic disintegration on initial react time. NH_4, H_2 and CH_4 gas concentration showed 589 ppm 1hr after, 83 ppm and 0.3%, but 8hr after gas product was complete. As using the straw of bulking agent, the Reduction by disintegration should be more effectively than composting.
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