城市有机垃圾厌氧干发酵研究

THE STUDY ON ANAEROBIC DRY FERMENTATION OF MUNICIPAL ORGANIC WASTES

在２０—５０％ＴＳ浓度下，采用厌氧消化污泥作接种物，ＴＳ量与接种物量之比为１０：１，可保证有机垃圾厌氧消化过程正常进行。这时垃圾的生物降解量、产沼气量和产甲烷量均随ＴＳ浓度的增高而降低。ＴＳ浓度为５０％时降低幅度最大。产甲烷过程、挥发酸量和每克ＴＳ和ＶＳ的产气量均与ＴＳ浓度有关。

Under the concentration of 20-50% TS. anaerobic digestion sludge was used as inoculum.Inoculation was operated according to the proportion of TS to inoculum as 10 to 1, which can pledge anaerobic process of organic wastes operating normally. In that case. the amount of biodegradation of waste. biogas and methane yielding reduced with increasing TS concentration. When TS concentration was up to 50%. the reduction quantity reached a maximum. The process of mathane production. the amount of volatile acids and biogas yielding of pergram TS and pergram VS related to TS concentration.