论文部分内容阅读
为提高水稻秸秆的腐解速率,将秸秆粉碎后采用氨碱剂与复合菌剂结合进行处理。通过考查氨碱剂、复合菌剂的用量对秸秆颜色、渗出液pH值、疏松程度等的影响,得出秸秆快速腐解工艺条件为:m(秸秆)∶m(氧化钙)∶m(尿素)=200∶9∶4,氨碱处理4天,m(侧孢芽孢杆菌)∶m(地衣芽孢杆菌)∶m(枯草芽孢杆菌)∶m(发酵菌)=5∶4∶4∶10,m(秸秆):m(复合菌剂)>125∶1,复合菌剂处理12天。考查了秸秆不同腐解阶段的化学结构与微观结构,结果表明:腐解后秸秆中的碳水化合物发生分解,结构变得疏松多孔,而且随着秸秆腐解,碳水化合物、酰胺类化合物和糖类逐渐减少,羧基增多。
In order to improve the decomposing rate of rice straw, the straw was crushed and then treated with ammonia-alkali agent and compound bacteria agent. Through examining the effect of ammonia-alkali agent and compound antibacterial agent on the color of straw, the pH value of exudate and the degree of looseness, it was concluded that the technological conditions of rapid decomposition of straw were m (straw): m (calcium oxide): m Urea) = 200: 9: 4, Ammonia treatment for 4 days, m (Bacillus laterosporus): m (Bacillus licheniformis): m (Bacillus subtilis): m (Fermentative bacteria) = 5: 4: 4: 10 , m (straw): m (compound bactericide)> 125: 1, compound bactericide for 12 days. The chemical structure and microstructure of different stages of straw decomposition were examined. The results showed that the decomposition of carbohydrates in the straw after decomposition led to loose and porous structure. With the decomposition of straw, carbohydrates, amides and carbohydrates Gradually reduced, carboxyl increased.