The objective of the research was to produce biogas by anaerobic co-digestion of biomass and urban solid waste. which made it possible to take advantage of these organic wastes. transforming them into a renewable energy source such as biogas being a fuel with an high calorific on an average of 19. 6 to 25 MJ/m3. https://safeersappliancers.shop/product-category/samsung-rf56m9540sr-family-hub-91cm-frost-free-american-fridge-freezer/