Food - processing waste with the biodegradable part 80% (weight/weight) which can be shown by empirical formula CH2O can be digested to methane and carbon dioxide.

Calculate the content of methane in biogas (volume/volume) and maximum yield of methane in terms of kg CH4 / kg of food-processing waste with the empirical formula CH2O. Assume that a fermentation of the food-processing wastes can be described by the following equation:

6CH2O 3CH4 + 3CO2

Neglect the solubility of the gases in water. Given: The molecular weight of food-processing waste (CH2O), CH4 and CO2 are 30, 16, and 44 grams/mole, respectively.