What is the primary product of anaerobic digestion of organic waste?

What is the primary product of anaerobic digestion of organic waste?

• A. Biogas
• B. Char
• C. Sulfuric acid
• D. Plastic pellets

Answer: (A)

Anaerobic digestion is a biological process in which microorganisms break down organic matter without oxygen, and the main product is biogas, a methane-rich gas that can be captured and used for energy. This gas is produced alongside a nutrient-rich liquid or solid residue called digestate, which can be used as fertilizer. Char is formed when biomass is heated in the absence of oxygen (pyrolysis), not by digestion. Sulfuric acid is made through chemical industrial processes, not microbial decomposition. Plastic pellets come from polymer manufacturing, not from breaking down organic waste biologically.

Anaerobic digestion is a biological process in which microorganisms break down organic matter without oxygen, and the main product is biogas, a methane-rich gas that can be captured and used for energy. This gas is produced alongside a nutrient-rich liquid or solid residue called digestate, which can be used as fertilizer. Char is formed when biomass is heated in the absence of oxygen (pyrolysis), not by digestion. Sulfuric acid is made through chemical industrial processes, not microbial decomposition. Plastic pellets come from polymer manufacturing, not from breaking down organic waste biologically.