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生物炭和菌剂对羊粪微好氧堆肥腐熟度和温室气体排放的影响 被引量:16
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作者 杨佳 王国英 +4 位作者 唐若兰 王佳妮 马若男 李国学 袁京 《农业工程学报》 EI CAS CSCD 北大核心 2022年第10期224-231,共8页
为探究微好氧堆肥方式对羊粪堆肥腐熟度和温室气体排放的影响,该研究以纯羊粪为研究对象,设置对照(CK)、生物炭添加(BC)和VT菌剂添加处理(MC)3个处理,在60 L的敞口发酵罐中进行42 d的堆肥试验,堆肥前14 d微量间歇强制通风,后28d停止强... 为探究微好氧堆肥方式对羊粪堆肥腐熟度和温室气体排放的影响,该研究以纯羊粪为研究对象,设置对照(CK)、生物炭添加(BC)和VT菌剂添加处理(MC)3个处理,在60 L的敞口发酵罐中进行42 d的堆肥试验,堆肥前14 d微量间歇强制通风,后28d停止强制通风。结果表明:羊粪微好氧堆肥均能满足种子发芽指数(GerminationIndex,GI)≥70%、pH值不小于8等腐熟标准,与CK相比,BC和MC处理分别提高27.8%和38.8%的GI,并延长堆肥高温期至10 d以上,满足堆肥无害化和腐熟标准。NH_(3)、CH_(4)和N_(2)O排放集中在前14 d,排放速率主要受温度、腐熟度等理化性质影响,且添加外源功能材料可不同程度减少气体排放量,其中添加生物炭使NH_(3)、CH_(4)和N_(2)O排放量分别减少38.68%、14.26%和31.54%,总温室效应降低31.11%;菌剂添加降低18.41%的NH_(3)排放,增加21.10%的N_(2)O排放,总温室效应增加20.70%。因此,在羊粪微好氧过程,生物炭作为调理剂可促进堆肥腐熟,减少堆肥过程温室气体排放,加速有机质矿化和腐殖化,增加堆肥产品养分含量,为羊粪轻简化堆肥提供数据支撑。 展开更多
关键词 温室气体 生物炭 微好氧堆肥 羊粪 VT菌剂
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Cellulolytic Microbial Activator Influence on Decomposition of Rubber Factory Waste Composting
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作者 T. Kaosol S. Wandee 《Journal of Environmental Science and Engineering》 2010年第3期41-47,共7页
An aerobic composting method is studied to reuse organic waste from rubb er factory waste as soil fertilizer and to study the effect of cellulolytic microbial activator (CMA) as the activator in the rubber factory w... An aerobic composting method is studied to reuse organic waste from rubb er factory waste as soil fertilizer and to study the effect of cellulolytic microbial activator (CMA) as the activator in the rubber factory waste composting. The performance of the composting process was monitored as a function of carbon and organic matter decomposition rate, temperature and moisture content. The results indicate that the rubber factory waste is best composted with water hyacinth and sludge than composted alone. In addition, the CMA is more aft^ctive when mixed with the rubber factory waste, water hyacinth and sludge since a good fertilizer is achieved. When adding CMA into the rubber factory waste composted alone, the finished product does not achieve a standard of fertilizer, especially the C/N ratio. The finished products (both CMA and without CMA), can be an environmental friendly alternative to solve the disposal problems of rubber factory waste, Since the C/N ratio, pH, moisture content, temperature, and nutrients of the finished products are acceptable for agriculture use. 展开更多
关键词 COMPOSTING rubber waste C/N ratio SLUDGE cellulolytic microbial activator.
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