不同堆置措施对园林有机废弃物堆肥有机物降解的影响

采取不同的堆置措施,研究了调节C/N和添加复合菌剂对园林废弃物堆肥过程中有机物降解的动态变化和生物学指标的影响.结果表明:调节C/N和添加复合菌剂有利于堆肥温度的升高和腐熟的加快,降低堆肥的毒性,促进挥发性固体的降解,能加速有机质、总腐植酸和游离腐植酸的分解,提高堆肥中的胡富比,加快堆肥的腐熟和提高堆肥质量;调节C/N并添加复合菌剂的堆置措施比只进行C/N调节的措施更有利于堆肥的快速腐熟以及堆肥产品质量的提高.

Effects of Different Disposing Measures on the Organics Degradation During the Organic Garden Waste Composting

In order to investigate the effects of the C/N ratio and bacterial reagent addition on dynamic changes of organics degradation and biological indicators during the organic garden waste composting,a compost test with different disposing measures was conducted.The results showed that the adjustment of C/N ratio and the bacterial reagents addition benefited the compost temperature rising and acceleration of maturity,reduced the compost toxicity,promoted the degradation of volatile solids,accelerated the decomposition of organic carbon,the total and free humic acid,increased the HA/ FA ratio,and improved the compost quality.The results indicated that the adjustment of C/N ratio combined with the bacterial reagents addition was more effective to the maturity and quality improvement of compost than the only regulating C/N ratio.