Influence of temperature variation on biogas yield from industrial wastes and energy plants

The influence of temperature on the performance of anaerobic digestion of industrial wastes and energy plants has been investigated. Continuous digestion of industrial wastes and energy plants was carried out for 120 days at different temperature. The variation of temperatures ranges from 52 ºC to 57 ºC while keeping other parameters constant such as the total solid concentration, organic load and pH. The highest biogas yield from industrial wastes and energy plants was found at 52 ºC with average yield of 674.4 l·kg-1·VS-1 and energy value of 14.2 MJ·kg-1·VS-1. By rising temperature to 57 ºC there was a rapid initial drop in the biogas yield rate averaging yield 512.3 l·kg-1·VS-1 and energy value of 10.2 MJ·kg-1·VS-1. In addition, the temperature fluctuations influence variations of biogas production significantlyVytauto Didžiojo universitetasŽemės ūkio akademij