酒糟和果渣的优化处理是实现废弃物资源化利用的基础.探求酒糟和果渣厌氧发酵特性,以期为解决酒糟、果渣的清洁处理及再利用问题提供理论依据.试验采用自行研究设计的可控性恒温厌氧发酵装置,分别以工厂产生的果渣和酒糟为原料,常温厌氧发酵池的底物为接种物,在25～45℃温度范围内,每5℃设1个温度梯度进行试验.结果表明:2种原料在所设温度范围内均能够发酵产生沼气,但二者产气量峰值出现时的温度不同,在1000 mL发酵壶内,酒糟在30℃时累积产气量最大,为10 122.4 mL,25℃时的累积产气量次之；果渣在35℃时累积产气量最大,为11113.3 mL,40℃时的累计产气量次之.可见用酒糟厌氧发酵生产沼气以25～30℃为佳,而果渣以35～40℃为佳.%Optimal use of vinasse and marc is a basis for waste utilization as resources. This experiment explored the characteristics of anaerobic fermentation using vinasse and marc,with the expectancy to resolve their cleaning and reusing problems. A self-designed constant-temperature anaerobic fermentation device was used and temperature was set at 25 -45℃ with 5℃ as a gradient. Vinasse and marc from industrial production were used as materials while the substrate for constant temperature fermentation pool was used as the inoculation substances. The results showed that both materials could produce biogas through anaerobic fermentation within the experimental temperature range,but the peak value of cumulative biogas production appeared at different temperatures. In a l000mL fermentation pot, the maximum cumulative biogas (10122. 4mL) produced by vinasse occurred at 30°C ,followed by 25°C. The maximum cumulative biogas (11113. 3mL) produced by marc occurred at 35°C ,followed by 40°C. It concluded that 25 -30℃ was appropriate for vinasse anaerobic fermentation while 35-40°C was for marc anaerobic fermentation.
展开▼
