Rapid increase in ethanol production from cereal grain to substitute fossil fuel has resulted also in different types of byproduct associated with its production. One of these byproducts is thin stillage. Thin stillage is ...

Production of biogas from organic materials via gasification also generates a valuable byproduct of ash. Ash contains the original nutrient present in organic materials, except carbon, nitrogen and sulfur that are lost as ...

The majority of N2O emissions result from bacterial denitrification and to a lesser extent nitrification, occurring in agricultural soils. Therefore, the overall N economy of a system, along with soluble C and limited O2 ...