Effects of Recycled Compost on Composting Reaction, Quality of Compost and Facilities Management in Swine Manure

MIYATAKE Fumihito, TOKIHISA Natsumi, ONO Takehito

doi:10.11449/sasj.49.3_127

Bibliographic Information

Other Title

戻し堆肥の混合量が豚ふんの堆肥化反応，堆肥の品質および施設運営に及ぼす影響

Abstract

To clarify the effects of recycled compost on composting reaction, quality of compost and facilities management in swine manure composting, temperature profi le, fertilizer components, microbial fl ora and management estimate was investigated with a real composting facility of swine manure. Compost material mixed with swine manure, sawdust and recycled compost at 1: 1: 1 (volume ratio) maintained a temperature of 55 °C or higher for 238 hours continuously, showing that it is possible to produce safe compost in which coliform bacteria were killed. In addition, this duration of high temperature promoted moisture evaporation, leading to high drying effi ciency. On the other hand, the compost temperature of material regulated the moisture content with only sawdust had only 36 hours for a duration of 55 °C or higher. Therefore, the number of coliform bacteria in the compost was detected at 3.2 × 10⁵cfu g-ds^-1. For the fertilizer components, the concentration of phosphoric acid, potassium, zinc, copper and EC in the product compost increased by 1.4 to 2.4 times as the amount of recycled compost increased. According to management analysis, composting with material mixed at 1: 0.5: 2 had major economic effect. Meanwhile, it showed that composting of 1: 1: 1 leads to and labor saving of facility management.

Journal

Nogyo Shisetsu (Journal of the Society of Agricultural Structures, Japan)

Nogyo Shisetsu (Journal of the Society of Agricultural Structures, Japan) 49 (3), 127-135, 2018

The Society of Agricultural Structures, Japan

Keywords

Details 詳細情報について

CRID: 1390578847126909696

DOI: 10.11449/sasj.49.3_127

ISSN: 21860122; 03888517

Text Lang: ja

Data Source

JaLC

Abstract License Flag: Allowed

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