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Forced Aeration Composting System for Swine Manure Treatment

文献类型： 会议论文

第一作者： Xiuping Tao

作者： Xiuping Tao 1 ; Hongmin Dong 1 ; Akihiro Tanaka 2 ; Bin Shang 1 ; Hongkun Huang 1 ; ZHipeng Hao 1 ;

作者机构： 1.Institute of Environment & Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 12 Zhong Guan Cun Nan Da Jie, Beijing, China

2.National Agricultural Research Center for Kyusyu Okinawa Region, 2421 Suya, Nishigoshi, Kumamoto Japan

关键词： Composting;swine manure;forced aeration;waste treatment

会议名称： American Society of Agricultural and Biological Engineers

主办单位：

页码： 3886-3894

摘要： A four-phase forced aeration composting process was designed and preliminary trials were conducted to treat swine manure in a pilot-scale forced aeration composting facility (19 6 L X 14.0 W m) with 4 thermophilic decomposition compartments (3.92 m x5.0 m) on farm Cornstalk was used as bulking agent, and volume ratio of swine manure to amendment was determined to be 1:1.5 on farm according to the desired bulk density of mixture. The initial mixture of swine manure and corn stalk was stacked in the first decomposition compartment to form a trapezoid shape pile with a volume of 25.5m~3, the pile was weekly remixed and turned to the next compartment one by one, the ingredients stayed in each compartment for 1 week and air was supplied using blower with capacity of 7m~3/min and power of 0.25 kWh, the blower operated intermittently with interval of 15min The preliminary trials were conducted in winter season with daily mean ambient temperature ranqinq from -10 °C to 6°C, the inside temperatures morethan 55°C were recorded for 22 consecutive days during the composting process, it could meet the requirement of national sanitary standard for manure non-hazardous, the farmer could have 912 dollar net income from the compost of a pile which was much higher than the 70 dollar of raw manure marketing. This four-phase composting process is suitable for swine manure treatment in swine farm of China.

分类号： S-532

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