摘要
以麦秸膨胀剂为对照,利用3组小型好氧堆肥反应器同时试验,并进行比较研究塑料膨胀剂对猪粪好氧堆肥过程的影响。将等量猪粪分别与等体积的麦秸和塑料管分别混合进行好氧堆肥试验,监测了堆肥过程中温度、氧气体积分数、含水率、可挥发性固体含量、可溶性糖含量、纤维素含量、粗脂肪含量和粗蛋白含量的变化,并利用数学模型表达了堆肥过程中自由空域的变化及其对有机质降解的影响因子。试验结果表明:塑料膨胀剂抵抗堆体自压实作用的效果要优于麦秸膨胀剂,而麦秸膨胀剂比塑料膨胀剂更利于堆肥初始阶段升温和整个堆肥过程中含水率的保持。
In order to study the effects of plastic bulking agents on processing of swine manure composting, three parallel composting experiments were conducted with laboratory scale eomposting reactors. Same amount of swine manure was mixed with equal volume of wheat straw or plastic bulking agents. Temperature, oxygen concentration, moisture content, volatile solid content, soluble carbohydrate content, cellulose content, crude fat content and crude protein content were monitored and recorded respectively. Mathematical models were employed to detect changing of free space and its effect on composting substrate decomposition. According to the results of composting experiments, temperature of composting pile using wheat straw as bulking agents raised faster than the one with plastic bulking agents at the beginning of the composting. Meanwhile wheat straw bulking agents showed better performance on water holding capacity. However, plastic bulking agents was better at keeping free air space of the whole composting pile.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第5期158-163,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
公益性行业(农业)科研专项资助项目(201003063)
关键词
猪粪
好氧堆肥
膨胀剂
塑料
麦秸
Swine manure
Aerobic eomposting
Bulking agents
Plastics
Wheat straw
