垃圾高温好氧生物干化效果的影响因素分析

高温好氧生物干化技术是解决我国"高含水、高有机质"生活垃圾干化的有效技术手段，而垃圾高温好氧生物干化过程的微观机理及影响因素非常复杂。在进行多组垃圾高温好氧生物干化试验的基础上，指出影响生物干化的内外因素有机质含量、微生物菌种、通风风量、仓体构造、氧气浓度、颗粒粒径、仓体保温性；初步确定了高温好氧生物干化主要影响因素的适宜范围为垃圾中有机质含量>15%，接种适宜的高温好氧微生物菌种（活菌数为106~1010 CFU/mL，接种量约为1.5 L/t），垃圾粒径控制在95%＜160mm，通风风量应同时满足有机质分解过程中O₂的需要量和除湿的空气需要量，可为垃圾高温好氧生物干化技术的工艺机理研究提供了数据参考。

ANALYSIS ON INFLUENCING FACTORS OF EFFECT OF HIGH TEMPERATURE AEROBIC BIOLOGICAL DRYING PROCESS OF GARBAGE

High temperature aerobic biological drying technology is effective in solving the problem of high water content, high organic matter existing in domestic waste drying in China, while the micro mechanism and influencing factors of high temperature aerobic biological drying process were very complex. On the basis of the experiments of high temperature aerobic biological drying of garbage, the important factors on biological drying were:organic matter content, microbial species, ventilation air volume, bin structure, oxygen concentration, particle size and bin insulation; the suitable range of main influence factors of high temperature aerobic biological drying was preliminarily determined as follows: the content of organic matter in garbage should be more than 15%, and suitable high temperature aerobic microbial bacteria should be inoculated (living bacteria dosage of 106~1010 CFU/mL, and the inoculation amount was about 1.5 L/t), the particle size of garbage was controlled at 95% ＜160 mm, and the ventilation air volume should meet the demand of O₂ and dehumidification in the process of organic matter decomposition. The results could prouide data reference for researches on the process mechanism of high temperature aerobic biological drying technology of domestic waste.