• Title/Summary/Keyword: 음식물찌꺼기

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Production of Fermented Feed from Food Wastes by Using Inoculation (종균 첨가에 의한 음식물 찌꺼기의 발효 사료화)

  • Suh, Eun-Hee;Song, Eun-Seung;Han, Uok;Lee, Sung-Taek;Yang, Jae-Kyung;Lee, Ki-Young
    • Journal of the Korea Organic Resources Recycling Association
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    • v.5 no.1
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    • pp.1-13
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    • 1997

  • The fermentative conversion of food wastes into feed was investigated by seeding of mixed inoculum YM (Youngjin Environmental co.), and thermotolerant yeast Kl. marxianus. For 6 days' fermentaion, the fermentation method of 2 days' aerobic followed by 4 days' anaerobic was better for the production of organic acids and increasing total microbial population than 6 days' continuous aerobic or anaerobic fermentation. By seeding YM, the total microbial count increased about 100 times of the control group. In addition, Kl. marxianus seeding together with YM increased total viable cell count, but did not increase yeast count significantly.

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Changes of Soil Chemical Properties and Uptake of Salts by the Plants according to the Application of the Food Waste Compost (음식물찌꺼기 퇴비의 시용에 따른 토양의 화학성 변화 밑 작물체내 염류의 흡수)

  • Lee, Sang-Suk;Chang, Ki-Woon
    • Journal of the Korea Organic Resources Recycling Association
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    • v.6 no.2
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    • pp.59-67
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    • 1998

  • This study was conducted to investigate the changes of soil chemical properties and uptake of salts by the plants(Raphanus and Lactuca) according to the application of the food waste compost(FWC), which was produced on a large scale at a pilot plant. Generally, FWC has a high electrical conductivity(EC) and contains much salts, such as Na, K, Ca, and Mg, and because of these when FWC are applied to soils there is a possibility of salt ac-cumulation in soils and growth inhibition on plants. The FWC were applied at the rates of 0, 20, 40, 80, and 160 Mg/ha in the 1/5,000a pots on the basis of dry weight, and the plants were cultivated for 60 days. And then, changes of pH and EC in soils and uptake of salts by the plants were investigated. The results obtained are summarized as follows; 1. After the cultivation of the Raphanus and Lactuca, pH increased and EC decreased in the soils. 2. Uptake rates of Na and K were slightly increased with the application of the FWC. In uptake rate of Ca, Raphanus and Lactuca was decreased, increased, respectively. In Raphanus, uptake rate of Mg was highest with the application of the FWC at 40 Mg/ha, and in Lactuca, continuously increased with application of the FWC.

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A Study on Recycling of Food Garbage - For Compost - (음식물찌꺼기의 재활용에 관한 연구 - 퇴비화로서 -)

  • Kim, Nam-Cheon
    • Journal of the Korea Organic Resources Recycling Association
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    • v.2 no.1
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    • pp.51-64
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    • 1994

  • To compost the food garbage with the dry bean curd and sawdust as the bulking agents, the method of high-speed fermentation by the characteristic microorganisms group was applied. The results of experiments are summarized as follows ; 1. Korean food garbage, which is high in water content, is difficult to compost only by microorganism fermentation without the addition of bulking agents such as dry bean curd cake and sawdust. 2. Weight reduction rates are ranging from 35.6% to 64.5% and varying with the composition of food garbage. The less weight reduction rate is, the longer continuous-fermentation is. And the color of compost is changing sequentially as yellow -> brown -> black. 3. Comparing with the controlled microorganism group, the weight reduction rate and $H_2CO_3$ production rate in the characteristic microorganism group fermentation reactors are higher. And the fermentation rate is satisfactory when the characteristic microorganism group is added. 4. The value of fermented composting as fertilizer diminishes, and the contents of Total Nitrogen, $P_2O_5$, $K_2O$ increase on the condition that the fermentation continues. However, the organic contents and C/N ratio diminish as the fermentation continues. 5. The high-speed fermentation technology demonstractes the possibility of recycling as well as the reduction of composting time provided that it is applied as a pretreatment process for composting.

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