| 粪便好氧堆肥过程中温度对有机物的降解和氮的保持特性影响 |
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| 引用本文： | 白帆,王晓昌.粪便好氧堆肥过程中温度对有机物的降解和氮的保持特性影响[J].中国土壤与肥料,2011(3):68-71. |
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| 作者姓名： | 白帆 王晓昌 |
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| 作者单位： | 1. 陕西省灾害监测与机理模拟重点实验室,宝鸡文理学院地理科学与环境工程系,陕西宝鸡721016;教育部西北水资源与环境生态重点实验室,西安建筑科技大学环境与市政工程学院,陕西西安710055
2. 教育部西北水资源与环境生态重点实验室,西安建筑科技大学环境与市政工程学院,陕西西安710055 |
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| 基金项目： | 长江学者基金和创新研究梯队，国家高技术研究发展计划(863)项目，国家自然科学基金重大国际合作项目，宝鸡文理学院院级项目 |
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| 摘 要： | 研究堆肥过程温度对有机物的降解,尤其是氮的迁移转化的影响,对于提高堆肥效率和保持更多的氮在产物中具有重要意义。本研究采用密闭式好氧堆肥反应器,模拟高温(60℃)和中温(35℃)两种典型的堆肥温度,以新鲜锯末为空白载体,在含水率60%以及连续强制供气的条件下,进行了为期两周的试验,评估温度对于粪便中有机物的降解和氮的迁移转化的影响。结果表明,粪便中有机物(固体中的有机物,总有机碳、化学需氧量)高温去除率70%,比中温的63%高出11%;且堆肥腐熟期高温(6～8 d)比中温(10～11 d)缩短约4 d。总氮的损失高温(17%)比中温(31.4%)减少了约50%。高温下氮的损失发生在堆肥反应的第1 d,由无机氮的迅速减少造成,有机氮几乎未变。中温下氮的损失在堆肥反应的前4 d,由无机氮和有机氮共同参与。研究表明,温度对堆肥具有显著的影响,控制合适的堆肥温度不仅可以加快有机物的腐熟,提高效率,还可以减少氮的损失,提高产物的肥效。
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| 关 键 词： | 堆肥反应器 人粪便 氮的保持 肥料 |
Effect on biodegradation and nitrogen holding property from temperature during aerobic composting for sanitary disposal of human feces |
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| BAI Fan,WANG Xiao-chang.Effect on biodegradation and nitrogen holding property from temperature during aerobic composting for sanitary disposal of human feces[J].Soil and Fertilizer Sciences in China,2011(3):68-71. |
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| Authors: | BAI Fan WANG Xiao-chang |
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| Institution: | BAI Fan1,2,WANG Xiao-chang 2( 1.Dept of Geo-science and Environmental Engineering,Baoji University of Arts & Sciences,Baoji 721016,2.Key Lab of Northwest Water Resource,Environment and Ecology,MOE,Xi'an University of Architecture and Technology,Xi'an 710055) |
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| Abstract: | It would be favorable to improve biodegradation of feces and hold more nitrogen in compost if the effect on biodegradation and nitrogen holding property from temperature was found out during aerobic composting in bio-toilet for sanitary disposal of human feces.In this study,batch experiments were conducted using a closed aerobic composting reactor with sawdust as the bulky matrix to simulate the condition of a bio-toilet for sanitary disposal of human feces.Attention was paid to the effect on biodegradation... |
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| Keywords: | composting reactor human feces nitrogen holding fertilizer |
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