Effects of Various Bulking Agents on Temperature, Oxygen Uptake Rate, Ammonium Gas Concentration and Compost Quality in Dairy Manure Composting

DOI JASI Web Site 16 References
  • MIYATAKE Fumihito
    Department of Agro-Environmental Science, Obihiro University of Agriculture and Veterinary Medicine
  • ABE Yoshiyuki
    National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization
  • HONDA Yoshifumi
    National Agriculture and Food Research Organization
  • IWABUCHI Kazunori
    Faculty of Agriculture, Utsunomiya University
  • TANI Masayuki
    Department of Agro-Environmental Science, Obihiro University of Agriculture and Veterinary Medicine
  • KATO Taku
    Department of Agro-Environmental Science, Obihiro University of Agriculture and Veterinary Medicine

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Other Title
  • 異なる副資材の混合が乳牛ふん堆肥化の温度，酸素消費速度，アンモニアガス濃度および堆肥成分に及ぼす影響
  • コトナル フクシザイ ノ コンゴウ ガ ニュウギュウフンタイヒカ ノ オンド サンソ ショウヒ ソクド アンモニアガス ノウド オヨビ タイヒ セイブン ニ オヨボス エイキョウ

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Abstract

To clarify the characteristics of dairy cattle manure composting using various kinds of bulking agents, compost temperature, oxygen uptake rate, ammonia gas concentration and final compost quality were investigated during the composting process. Bulking agents used in this study is as follows: wallboard paper scraps, pencil shavings, carbonized cedar and zeolite. Compost temperatures in any experimental groups rose over 60 ̊C within 24 hours, showing that composting was carried out smoothly. Oxygen uptake rate of zeolite group showed the highest level of the experimental groups. This high oxygen uptake rate may result from the gas adsorption ability by zeolite in addition to oxygen consumption by microorganisms. Ammonia gas concentration of wallboard paper scraps group was about 3.6 times as high as that of dairy manure group as a control. Ammonia gas concentration of zeolite group, which was expected to show the ability of ammonia adsorption, was lower than those of the other groups until day 3 of the experiment, although the effect was not durable. Compositions of final composts depended on the kinds of bulking agents. The sulfuric content of wallboard paper scraps group was the highest of those of the others. The vital point for the utilization of bulking agents to composting is to set the composting condition such as ventilation based on the characteristics of bulking agents. In addition, it is important to comprehend the chemical composition of composts when the composts with bulking agents are applied to soil.

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