In the biogas process you often measure Volatile solid and Total solids. Can any one explain these concepts more accurately and why it is interesting to look at these properties.
The biogas process I refer to is a process of fermenting waste food materials and slaugther house waste in to bio fuels, consisting largely of methane. The fermentation is conducted in anaerobic milieu in large plants.
Total solids and Volatile solid are measurements on the sludge the currently fermented waste,(the gooey stuff that is in the bio-reactor).